Accepting request 436663 from home:michael-chang:branches:Base:System
- From Juergen Gross <jgross@suse.com>: grub-xen: support booting huge pv-domains (bsc#1004398) (bsc#899465) * 0001-xen-make-xen-loader-callable-multiple-times.patch * 0002-xen-avoid-memleaks-on-error.patch * 0003-xen-reduce-number-of-global-variables-in-xen-loader.patch * 0004-xen-add-elfnote.h-to-avoid-using-numbers-instead-of-.patch * 0005-xen-synchronize-xen-header.patch * 0006-xen-factor-out-p2m-list-allocation-into-separate-fun.patch * 0007-xen-factor-out-allocation-of-special-pages-into-sepa.patch * 0008-xen-factor-out-allocation-of-page-tables-into-separa.patch * 0009-xen-add-capability-to-load-initrd-outside-of-initial.patch * 0010-xen-modify-page-table-construction.patch * 0011-xen-add-capability-to-load-p2m-list-outside-of-kerne.patch OBS-URL: https://build.opensuse.org/request/show/436663 OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=236
This commit is contained in:
parent
98cebe696e
commit
8da1cb3353
83
0001-xen-make-xen-loader-callable-multiple-times.patch
Normal file
83
0001-xen-make-xen-loader-callable-multiple-times.patch
Normal file
@ -0,0 +1,83 @@
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From 3fcf47254678ddd9387b8ee80f21ad5f163cb7a9 Mon Sep 17 00:00:00 2001
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From: Juergen Gross <jgross@suse.com>
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Date: Thu, 3 Mar 2016 10:38:06 +0100
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Subject: [PATCH 01/11] xen: make xen loader callable multiple times
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The loader for xen paravirtualized environment isn't callable multiple
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times as it won't free any memory in case of failure.
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Call grub_relocator_unload() as other modules do it before allocating
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a new relocator or when unloading the module.
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Signed-off-by: Juergen Gross <jgross@suse.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/loader/i386/xen.c | 27 +++++++++++++++++++--------
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1 file changed, 19 insertions(+), 8 deletions(-)
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diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
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index c4d9689..179e89c 100644
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--- a/grub-core/loader/i386/xen.c
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+++ b/grub-core/loader/i386/xen.c
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@@ -316,11 +316,23 @@ grub_xen_boot (void)
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xen_inf.virt_base);
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}
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+static void
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+grub_xen_reset (void)
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+{
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+ grub_memset (&next_start, 0, sizeof (next_start));
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+ xen_module_info_page = NULL;
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+ n_modules = 0;
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+
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+ grub_relocator_unload (relocator);
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+ relocator = NULL;
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+ loaded = 0;
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+}
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+
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static grub_err_t
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grub_xen_unload (void)
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{
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+ grub_xen_reset ();
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grub_dl_unref (my_mod);
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- loaded = 0;
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return GRUB_ERR_NONE;
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}
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@@ -403,10 +415,7 @@ grub_cmd_xen (grub_command_t cmd __attribute__ ((unused)),
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grub_loader_unset ();
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- grub_memset (&next_start, 0, sizeof (next_start));
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-
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- xen_module_info_page = NULL;
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- n_modules = 0;
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+ grub_xen_reset ();
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grub_create_loader_cmdline (argc - 1, argv + 1,
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(char *) next_start.cmd_line,
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@@ -503,16 +512,18 @@ grub_cmd_xen (grub_command_t cmd __attribute__ ((unused)),
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goto fail;
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fail:
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+ /* grub_errno might be clobbered by further calls, save the error reason. */
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+ err = grub_errno;
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if (elf)
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grub_elf_close (elf);
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else if (file)
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grub_file_close (file);
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- if (grub_errno != GRUB_ERR_NONE)
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- loaded = 0;
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+ if (err != GRUB_ERR_NONE)
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+ grub_xen_reset ();
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- return grub_errno;
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+ return err;
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}
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static grub_err_t
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--
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2.6.6
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101
0002-xen-avoid-memleaks-on-error.patch
Normal file
101
0002-xen-avoid-memleaks-on-error.patch
Normal file
@ -0,0 +1,101 @@
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From da05ded53eea9316b03f0e00dff3a8c9c4661c95 Mon Sep 17 00:00:00 2001
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From: Juergen Gross <jgross@suse.com>
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Date: Thu, 3 Mar 2016 10:38:07 +0100
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Subject: [PATCH 02/11] xen: avoid memleaks on error
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When loading a Xen pv-kernel avoid memory leaks in case of errors.
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Signed-off-by: Juergen Gross <jgross@suse.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/loader/i386/xen.c | 2 +-
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grub-core/loader/i386/xen_fileXX.c | 19 +++++++++++++------
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2 files changed, 14 insertions(+), 7 deletions(-)
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diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
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index 179e89c..f45f70f 100644
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--- a/grub-core/loader/i386/xen.c
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+++ b/grub-core/loader/i386/xen.c
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@@ -563,7 +563,7 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
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{
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err = grub_relocator_alloc_chunk_addr (relocator, &ch, max_addr, size);
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if (err)
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- return err;
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+ goto fail;
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if (grub_initrd_load (&initrd_ctx, argv,
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get_virtual_current_address (ch)))
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diff --git a/grub-core/loader/i386/xen_fileXX.c b/grub-core/loader/i386/xen_fileXX.c
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index 1ba5649..36b40e4 100644
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--- a/grub-core/loader/i386/xen_fileXX.c
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+++ b/grub-core/loader/i386/xen_fileXX.c
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@@ -26,6 +26,8 @@ parse_xen_guest (grub_elf_t elf, struct grub_xen_file_info *xi,
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char *buf;
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char *ptr;
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int has_paddr = 0;
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+
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+ grub_errno = GRUB_ERR_NONE;
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if (grub_file_seek (elf->file, off) == (grub_off_t) -1)
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return grub_errno;
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buf = grub_malloc (sz);
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@@ -35,7 +37,8 @@ parse_xen_guest (grub_elf_t elf, struct grub_xen_file_info *xi,
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if (grub_file_read (elf->file, buf, sz) != (grub_ssize_t) sz)
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{
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if (grub_errno)
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- return grub_errno;
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+ goto out;
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+ grub_free (buf);
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return grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
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elf->file->name);
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}
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@@ -123,14 +126,14 @@ parse_xen_guest (grub_elf_t elf, struct grub_xen_file_info *xi,
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{
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xi->virt_base = grub_strtoull (ptr + sizeof ("VIRT_BASE=") - 1, &ptr, 16);
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if (grub_errno)
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- return grub_errno;
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+ goto out;
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continue;
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}
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if (grub_strncmp (ptr, "VIRT_ENTRY=", sizeof ("VIRT_ENTRY=") - 1) == 0)
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{
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xi->entry_point = grub_strtoull (ptr + sizeof ("VIRT_ENTRY=") - 1, &ptr, 16);
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if (grub_errno)
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- return grub_errno;
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+ goto out;
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continue;
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}
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if (grub_strncmp (ptr, "HYPERCALL_PAGE=", sizeof ("HYPERCALL_PAGE=") - 1) == 0)
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@@ -138,7 +141,7 @@ parse_xen_guest (grub_elf_t elf, struct grub_xen_file_info *xi,
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xi->hypercall_page = grub_strtoull (ptr + sizeof ("HYPERCALL_PAGE=") - 1, &ptr, 16);
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xi->has_hypercall_page = 1;
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if (grub_errno)
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- return grub_errno;
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+ goto out;
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continue;
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}
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if (grub_strncmp (ptr, "ELF_PADDR_OFFSET=", sizeof ("ELF_PADDR_OFFSET=") - 1) == 0)
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@@ -146,7 +149,7 @@ parse_xen_guest (grub_elf_t elf, struct grub_xen_file_info *xi,
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xi->paddr_offset = grub_strtoull (ptr + sizeof ("ELF_PADDR_OFFSET=") - 1, &ptr, 16);
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has_paddr = 1;
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if (grub_errno)
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- return grub_errno;
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+ goto out;
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continue;
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}
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}
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@@ -154,7 +157,11 @@ parse_xen_guest (grub_elf_t elf, struct grub_xen_file_info *xi,
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xi->hypercall_page = (xi->hypercall_page << 12) + xi->virt_base;
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if (!has_paddr)
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xi->paddr_offset = xi->virt_base;
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- return GRUB_ERR_NONE;
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+
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+out:
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+ grub_free (buf);
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+
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+ return grub_errno;
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}
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#pragma GCC diagnostic ignored "-Wcast-align"
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--
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2.6.6
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509
0003-xen-reduce-number-of-global-variables-in-xen-loader.patch
Normal file
509
0003-xen-reduce-number-of-global-variables-in-xen-loader.patch
Normal file
@ -0,0 +1,509 @@
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From d0c3974a455c50de4bc6b6fa8ef9b280a6f99faa Mon Sep 17 00:00:00 2001
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From: Juergen Gross <jgross@suse.com>
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Date: Thu, 3 Mar 2016 10:38:08 +0100
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Subject: [PATCH 03/11] xen: reduce number of global variables in xen loader
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The loader for xen paravirtualized environment is using lots of global
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variables. Reduce the number by making them either local or by putting
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them into a single state structure.
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Signed-off-by: Juergen Gross <jgross@suse.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/loader/i386/xen.c | 267 +++++++++++++++++++++++---------------------
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1 file changed, 142 insertions(+), 125 deletions(-)
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diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
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index f45f70f..691c22e 100644
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--- a/grub-core/loader/i386/xen.c
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+++ b/grub-core/loader/i386/xen.c
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@@ -42,16 +42,20 @@
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GRUB_MOD_LICENSE ("GPLv3+");
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-static struct grub_relocator *relocator = NULL;
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-static grub_uint64_t max_addr;
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+struct xen_loader_state {
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+ struct grub_relocator *relocator;
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+ struct start_info next_start;
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+ struct grub_xen_file_info xen_inf;
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+ grub_uint64_t max_addr;
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+ struct xen_multiboot_mod_list *module_info_page;
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+ grub_uint64_t modules_target_start;
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+ grub_size_t n_modules;
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+ int loaded;
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+};
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+
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+static struct xen_loader_state xen_state;
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+
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static grub_dl_t my_mod;
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-static int loaded = 0;
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-static struct start_info next_start;
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-static void *kern_chunk_src;
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-static struct grub_xen_file_info xen_inf;
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-static struct xen_multiboot_mod_list *xen_module_info_page;
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-static grub_uint64_t modules_target_start;
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-static grub_size_t n_modules;
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#define PAGE_SIZE 4096
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#define MAX_MODULES (PAGE_SIZE / sizeof (struct xen_multiboot_mod_list))
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@@ -225,50 +229,55 @@ grub_xen_boot (void)
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if (grub_xen_n_allocated_shared_pages)
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return grub_error (GRUB_ERR_BUG, "active grants");
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- state.mfn_list = max_addr;
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- next_start.mfn_list = max_addr + xen_inf.virt_base;
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- next_start.first_p2m_pfn = max_addr >> PAGE_SHIFT; /* Is this right? */
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+ state.mfn_list = xen_state.max_addr;
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+ xen_state.next_start.mfn_list =
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+ xen_state.max_addr + xen_state.xen_inf.virt_base;
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+ xen_state.next_start.first_p2m_pfn = xen_state.max_addr >> PAGE_SHIFT;
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pgtsize = sizeof (grub_xen_mfn_t) * grub_xen_start_page_addr->nr_pages;
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- err = grub_relocator_alloc_chunk_addr (relocator, &ch, max_addr, pgtsize);
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- next_start.nr_p2m_frames = (pgtsize + PAGE_SIZE - 1) >> PAGE_SHIFT;
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+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
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+ xen_state.max_addr, pgtsize);
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+ xen_state.next_start.nr_p2m_frames = (pgtsize + PAGE_SIZE - 1) >> PAGE_SHIFT;
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if (err)
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return err;
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new_mfn_list = get_virtual_current_address (ch);
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grub_memcpy (new_mfn_list,
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(void *) grub_xen_start_page_addr->mfn_list, pgtsize);
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- max_addr = ALIGN_UP (max_addr + pgtsize, PAGE_SIZE);
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+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + pgtsize, PAGE_SIZE);
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- err = grub_relocator_alloc_chunk_addr (relocator, &ch,
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- max_addr, sizeof (next_start));
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+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
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+ xen_state.max_addr,
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+ sizeof (xen_state.next_start));
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if (err)
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return err;
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- state.start_info = max_addr + xen_inf.virt_base;
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+ state.start_info = xen_state.max_addr + xen_state.xen_inf.virt_base;
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nst = get_virtual_current_address (ch);
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- max_addr = ALIGN_UP (max_addr + sizeof (next_start), PAGE_SIZE);
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-
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- next_start.nr_pages = grub_xen_start_page_addr->nr_pages;
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- grub_memcpy (next_start.magic, grub_xen_start_page_addr->magic,
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- sizeof (next_start.magic));
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- next_start.store_mfn = grub_xen_start_page_addr->store_mfn;
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- next_start.store_evtchn = grub_xen_start_page_addr->store_evtchn;
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- next_start.console.domU = grub_xen_start_page_addr->console.domU;
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- next_start.shared_info = grub_xen_start_page_addr->shared_info;
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-
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- err = set_mfns (new_mfn_list, max_addr >> PAGE_SHIFT);
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+ xen_state.max_addr =
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+ ALIGN_UP (xen_state.max_addr + sizeof (xen_state.next_start), PAGE_SIZE);
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+
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+ xen_state.next_start.nr_pages = grub_xen_start_page_addr->nr_pages;
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+ grub_memcpy (xen_state.next_start.magic, grub_xen_start_page_addr->magic,
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+ sizeof (xen_state.next_start.magic));
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+ xen_state.next_start.store_mfn = grub_xen_start_page_addr->store_mfn;
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+ xen_state.next_start.store_evtchn = grub_xen_start_page_addr->store_evtchn;
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+ xen_state.next_start.console.domU = grub_xen_start_page_addr->console.domU;
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+ xen_state.next_start.shared_info = grub_xen_start_page_addr->shared_info;
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+
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+ err = set_mfns (new_mfn_list, xen_state.max_addr >> PAGE_SHIFT);
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if (err)
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return err;
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- max_addr += 2 * PAGE_SIZE;
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+ xen_state.max_addr += 2 * PAGE_SIZE;
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- next_start.pt_base = max_addr + xen_inf.virt_base;
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- state.paging_start = max_addr >> PAGE_SHIFT;
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+ xen_state.next_start.pt_base =
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+ xen_state.max_addr + xen_state.xen_inf.virt_base;
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+ state.paging_start = xen_state.max_addr >> PAGE_SHIFT;
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- nr_info_pages = max_addr >> PAGE_SHIFT;
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+ nr_info_pages = xen_state.max_addr >> PAGE_SHIFT;
|
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nr_pages = nr_info_pages;
|
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|
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while (1)
|
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{
|
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nr_pages = ALIGN_UP (nr_pages, (ALIGN_SIZE >> PAGE_SHIFT));
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- nr_pt_pages = get_pgtable_size (nr_pages, xen_inf.virt_base);
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+ nr_pt_pages = get_pgtable_size (nr_pages, xen_state.xen_inf.virt_base);
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nr_need_pages =
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nr_info_pages + nr_pt_pages +
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((ADDITIONAL_SIZE + STACK_SIZE) >> PAGE_SHIFT);
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@@ -278,27 +287,28 @@ grub_xen_boot (void)
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}
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grub_dprintf ("xen", "bootstrap domain %llx+%llx\n",
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- (unsigned long long) xen_inf.virt_base,
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+ (unsigned long long) xen_state.xen_inf.virt_base,
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(unsigned long long) page2offset (nr_pages));
|
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- err = grub_relocator_alloc_chunk_addr (relocator, &ch,
|
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- max_addr, page2offset (nr_pt_pages));
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+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
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+ xen_state.max_addr,
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+ page2offset (nr_pt_pages));
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if (err)
|
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return err;
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||||
|
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generate_page_table (get_virtual_current_address (ch),
|
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- max_addr >> PAGE_SHIFT, nr_pages,
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- xen_inf.virt_base, new_mfn_list);
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+ xen_state.max_addr >> PAGE_SHIFT, nr_pages,
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+ xen_state.xen_inf.virt_base, new_mfn_list);
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- max_addr += page2offset (nr_pt_pages);
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- state.stack = max_addr + STACK_SIZE + xen_inf.virt_base;
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- state.entry_point = xen_inf.entry_point;
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+ xen_state.max_addr += page2offset (nr_pt_pages);
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+ state.stack = xen_state.max_addr + STACK_SIZE + xen_state.xen_inf.virt_base;
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+ state.entry_point = xen_state.xen_inf.entry_point;
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- next_start.nr_p2m_frames += nr_pt_pages;
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- next_start.nr_pt_frames = nr_pt_pages;
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+ xen_state.next_start.nr_p2m_frames += nr_pt_pages;
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+ xen_state.next_start.nr_pt_frames = nr_pt_pages;
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state.paging_size = nr_pt_pages;
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- *nst = next_start;
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+ *nst = xen_state.next_start;
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|
||||
grub_memset (&gnttab_setver, 0, sizeof (gnttab_setver));
|
||||
|
||||
@@ -308,24 +318,20 @@ grub_xen_boot (void)
|
||||
for (i = 0; i < ARRAY_SIZE (grub_xen_shared_info->evtchn_pending); i++)
|
||||
grub_xen_shared_info->evtchn_pending[i] = 0;
|
||||
|
||||
- return grub_relocator_xen_boot (relocator, state, nr_pages,
|
||||
- xen_inf.virt_base <
|
||||
+ return grub_relocator_xen_boot (xen_state.relocator, state, nr_pages,
|
||||
+ xen_state.xen_inf.virt_base <
|
||||
PAGE_SIZE ? page2offset (nr_pages) : 0,
|
||||
nr_pages - 1,
|
||||
page2offset (nr_pages - 1) +
|
||||
- xen_inf.virt_base);
|
||||
+ xen_state.xen_inf.virt_base);
|
||||
}
|
||||
|
||||
static void
|
||||
grub_xen_reset (void)
|
||||
{
|
||||
- grub_memset (&next_start, 0, sizeof (next_start));
|
||||
- xen_module_info_page = NULL;
|
||||
- n_modules = 0;
|
||||
+ grub_relocator_unload (xen_state.relocator);
|
||||
|
||||
- grub_relocator_unload (relocator);
|
||||
- relocator = NULL;
|
||||
- loaded = 0;
|
||||
+ grub_memset (&xen_state, 0, sizeof (xen_state));
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
@@ -409,17 +415,22 @@ grub_cmd_xen (grub_command_t cmd __attribute__ ((unused)),
|
||||
grub_file_t file;
|
||||
grub_elf_t elf;
|
||||
grub_err_t err;
|
||||
+ void *kern_chunk_src;
|
||||
+ grub_relocator_chunk_t ch;
|
||||
+ grub_addr_t kern_start;
|
||||
+ grub_addr_t kern_end;
|
||||
|
||||
if (argc == 0)
|
||||
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
|
||||
|
||||
+ /* Call grub_loader_unset early to avoid it being called by grub_loader_set */
|
||||
grub_loader_unset ();
|
||||
|
||||
grub_xen_reset ();
|
||||
|
||||
grub_create_loader_cmdline (argc - 1, argv + 1,
|
||||
- (char *) next_start.cmd_line,
|
||||
- sizeof (next_start.cmd_line) - 1);
|
||||
+ (char *) xen_state.next_start.cmd_line,
|
||||
+ sizeof (xen_state.next_start.cmd_line) - 1);
|
||||
|
||||
file = grub_file_open (argv[0]);
|
||||
if (!file)
|
||||
@@ -429,85 +440,82 @@ grub_cmd_xen (grub_command_t cmd __attribute__ ((unused)),
|
||||
if (!elf)
|
||||
goto fail;
|
||||
|
||||
- err = grub_xen_get_info (elf, &xen_inf);
|
||||
+ err = grub_xen_get_info (elf, &xen_state.xen_inf);
|
||||
if (err)
|
||||
goto fail;
|
||||
#ifdef __x86_64__
|
||||
- if (xen_inf.arch != GRUB_XEN_FILE_X86_64)
|
||||
+ if (xen_state.xen_inf.arch != GRUB_XEN_FILE_X86_64)
|
||||
#else
|
||||
- if (xen_inf.arch != GRUB_XEN_FILE_I386_PAE
|
||||
- && xen_inf.arch != GRUB_XEN_FILE_I386_PAE_BIMODE)
|
||||
+ if (xen_state.xen_inf.arch != GRUB_XEN_FILE_I386_PAE
|
||||
+ && xen_state.xen_inf.arch != GRUB_XEN_FILE_I386_PAE_BIMODE)
|
||||
#endif
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_OS, "incompatible architecture: %d",
|
||||
- xen_inf.arch);
|
||||
+ xen_state.xen_inf.arch);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
- if (xen_inf.virt_base & (PAGE_SIZE - 1))
|
||||
+ if (xen_state.xen_inf.virt_base & (PAGE_SIZE - 1))
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_OS, "unaligned virt_base");
|
||||
goto fail;
|
||||
}
|
||||
grub_dprintf ("xen", "virt_base = %llx, entry = %llx\n",
|
||||
- (unsigned long long) xen_inf.virt_base,
|
||||
- (unsigned long long) xen_inf.entry_point);
|
||||
+ (unsigned long long) xen_state.xen_inf.virt_base,
|
||||
+ (unsigned long long) xen_state.xen_inf.entry_point);
|
||||
|
||||
- relocator = grub_relocator_new ();
|
||||
- if (!relocator)
|
||||
+ xen_state.relocator = grub_relocator_new ();
|
||||
+ if (!xen_state.relocator)
|
||||
goto fail;
|
||||
|
||||
- grub_relocator_chunk_t ch;
|
||||
- grub_addr_t kern_start = xen_inf.kern_start - xen_inf.paddr_offset;
|
||||
- grub_addr_t kern_end = xen_inf.kern_end - xen_inf.paddr_offset;
|
||||
+ kern_start = xen_state.xen_inf.kern_start - xen_state.xen_inf.paddr_offset;
|
||||
+ kern_end = xen_state.xen_inf.kern_end - xen_state.xen_inf.paddr_offset;
|
||||
|
||||
- if (xen_inf.has_hypercall_page)
|
||||
+ if (xen_state.xen_inf.has_hypercall_page)
|
||||
{
|
||||
grub_dprintf ("xen", "hypercall page at 0x%llx\n",
|
||||
- (unsigned long long) xen_inf.hypercall_page);
|
||||
- if (xen_inf.hypercall_page - xen_inf.virt_base < kern_start)
|
||||
- kern_start = xen_inf.hypercall_page - xen_inf.virt_base;
|
||||
-
|
||||
- if (xen_inf.hypercall_page - xen_inf.virt_base + PAGE_SIZE > kern_end)
|
||||
- kern_end = xen_inf.hypercall_page - xen_inf.virt_base + PAGE_SIZE;
|
||||
+ (unsigned long long) xen_state.xen_inf.hypercall_page);
|
||||
+ kern_start = grub_min (kern_start, xen_state.xen_inf.hypercall_page -
|
||||
+ xen_state.xen_inf.virt_base);
|
||||
+ kern_end = grub_max (kern_end, xen_state.xen_inf.hypercall_page -
|
||||
+ xen_state.xen_inf.virt_base + PAGE_SIZE);
|
||||
}
|
||||
|
||||
- max_addr = ALIGN_UP (kern_end, PAGE_SIZE);
|
||||
+ xen_state.max_addr = ALIGN_UP (kern_end, PAGE_SIZE);
|
||||
|
||||
- err = grub_relocator_alloc_chunk_addr (relocator, &ch, kern_start,
|
||||
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch, kern_start,
|
||||
kern_end - kern_start);
|
||||
if (err)
|
||||
goto fail;
|
||||
kern_chunk_src = get_virtual_current_address (ch);
|
||||
|
||||
grub_dprintf ("xen", "paddr_offset = 0x%llx\n",
|
||||
- (unsigned long long) xen_inf.paddr_offset);
|
||||
+ (unsigned long long) xen_state.xen_inf.paddr_offset);
|
||||
grub_dprintf ("xen", "kern_start = 0x%llx, kern_end = 0x%llx\n",
|
||||
- (unsigned long long) xen_inf.kern_start,
|
||||
- (unsigned long long) xen_inf.kern_end);
|
||||
+ (unsigned long long) xen_state.xen_inf.kern_start,
|
||||
+ (unsigned long long) xen_state.xen_inf.kern_end);
|
||||
|
||||
err = grub_elfXX_load (elf, argv[0],
|
||||
(grub_uint8_t *) kern_chunk_src - kern_start
|
||||
- - xen_inf.paddr_offset, 0, 0, 0);
|
||||
+ - xen_state.xen_inf.paddr_offset, 0, 0, 0);
|
||||
|
||||
- if (xen_inf.has_hypercall_page)
|
||||
+ if (xen_state.xen_inf.has_hypercall_page)
|
||||
{
|
||||
unsigned i;
|
||||
for (i = 0; i < PAGE_SIZE / HYPERCALL_INTERFACE_SIZE; i++)
|
||||
set_hypercall_interface ((grub_uint8_t *) kern_chunk_src +
|
||||
i * HYPERCALL_INTERFACE_SIZE +
|
||||
- xen_inf.hypercall_page - xen_inf.virt_base -
|
||||
- kern_start, i);
|
||||
+ xen_state.xen_inf.hypercall_page -
|
||||
+ xen_state.xen_inf.virt_base - kern_start, i);
|
||||
}
|
||||
|
||||
if (err)
|
||||
goto fail;
|
||||
|
||||
grub_dl_ref (my_mod);
|
||||
- loaded = 1;
|
||||
+ xen_state.loaded = 1;
|
||||
|
||||
grub_loader_set (grub_xen_boot, grub_xen_unload, 0);
|
||||
- loaded = 1;
|
||||
|
||||
goto fail;
|
||||
|
||||
@@ -541,14 +549,14 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
|
||||
goto fail;
|
||||
}
|
||||
|
||||
- if (!loaded)
|
||||
+ if (!xen_state.loaded)
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_ARGUMENT,
|
||||
N_("you need to load the kernel first"));
|
||||
goto fail;
|
||||
}
|
||||
|
||||
- if (next_start.mod_start || next_start.mod_len)
|
||||
+ if (xen_state.next_start.mod_start || xen_state.next_start.mod_len)
|
||||
{
|
||||
grub_error (GRUB_ERR_BAD_ARGUMENT, N_("initrd already loaded"));
|
||||
goto fail;
|
||||
@@ -561,7 +569,8 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
|
||||
|
||||
if (size)
|
||||
{
|
||||
- err = grub_relocator_alloc_chunk_addr (relocator, &ch, max_addr, size);
|
||||
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
+ xen_state.max_addr, size);
|
||||
if (err)
|
||||
goto fail;
|
||||
|
||||
@@ -570,13 +579,14 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
|
||||
goto fail;
|
||||
}
|
||||
|
||||
- next_start.mod_start = max_addr + xen_inf.virt_base;
|
||||
- next_start.mod_len = size;
|
||||
+ xen_state.next_start.mod_start =
|
||||
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
+ xen_state.next_start.mod_len = size;
|
||||
|
||||
- max_addr = ALIGN_UP (max_addr + size, PAGE_SIZE);
|
||||
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + size, PAGE_SIZE);
|
||||
|
||||
grub_dprintf ("xen", "Initrd, addr=0x%x, size=0x%x\n",
|
||||
- (unsigned) next_start.mod_start, (unsigned) size);
|
||||
+ (unsigned) xen_state.next_start.mod_start, (unsigned) size);
|
||||
|
||||
fail:
|
||||
grub_initrd_close (&initrd_ctx);
|
||||
@@ -608,45 +618,48 @@ grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
|
||||
if (argc == 0)
|
||||
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
|
||||
|
||||
- if (!loaded)
|
||||
+ if (!xen_state.loaded)
|
||||
{
|
||||
return grub_error (GRUB_ERR_BAD_ARGUMENT,
|
||||
N_("you need to load the kernel first"));
|
||||
}
|
||||
|
||||
- if ((next_start.mod_start || next_start.mod_len) && !xen_module_info_page)
|
||||
+ if ((xen_state.next_start.mod_start || xen_state.next_start.mod_len) &&
|
||||
+ !xen_state.module_info_page)
|
||||
{
|
||||
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("initrd already loaded"));
|
||||
}
|
||||
|
||||
/* Leave one space for terminator. */
|
||||
- if (n_modules >= MAX_MODULES - 1)
|
||||
+ if (xen_state.n_modules >= MAX_MODULES - 1)
|
||||
{
|
||||
return grub_error (GRUB_ERR_BAD_ARGUMENT, "too many modules");
|
||||
}
|
||||
|
||||
- if (!xen_module_info_page)
|
||||
+ if (!xen_state.module_info_page)
|
||||
{
|
||||
- n_modules = 0;
|
||||
- max_addr = ALIGN_UP (max_addr, PAGE_SIZE);
|
||||
- modules_target_start = max_addr;
|
||||
- next_start.mod_start = max_addr + xen_inf.virt_base;
|
||||
- next_start.flags |= SIF_MULTIBOOT_MOD;
|
||||
-
|
||||
- err = grub_relocator_alloc_chunk_addr (relocator, &ch,
|
||||
- max_addr, MAX_MODULES
|
||||
+ xen_state.n_modules = 0;
|
||||
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr, PAGE_SIZE);
|
||||
+ xen_state.modules_target_start = xen_state.max_addr;
|
||||
+ xen_state.next_start.mod_start =
|
||||
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
+ xen_state.next_start.flags |= SIF_MULTIBOOT_MOD;
|
||||
+
|
||||
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
+ xen_state.max_addr, MAX_MODULES
|
||||
*
|
||||
- sizeof (xen_module_info_page
|
||||
+ sizeof (xen_state.module_info_page
|
||||
[0]));
|
||||
if (err)
|
||||
return err;
|
||||
- xen_module_info_page = get_virtual_current_address (ch);
|
||||
- grub_memset (xen_module_info_page, 0, MAX_MODULES
|
||||
- * sizeof (xen_module_info_page[0]));
|
||||
- max_addr += MAX_MODULES * sizeof (xen_module_info_page[0]);
|
||||
+ xen_state.module_info_page = get_virtual_current_address (ch);
|
||||
+ grub_memset (xen_state.module_info_page, 0, MAX_MODULES
|
||||
+ * sizeof (xen_state.module_info_page[0]));
|
||||
+ xen_state.max_addr +=
|
||||
+ MAX_MODULES * sizeof (xen_state.module_info_page[0]);
|
||||
}
|
||||
|
||||
- max_addr = ALIGN_UP (max_addr, PAGE_SIZE);
|
||||
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr, PAGE_SIZE);
|
||||
|
||||
if (nounzip)
|
||||
grub_file_filter_disable_compression ();
|
||||
@@ -657,20 +670,22 @@ grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
|
||||
|
||||
cmdline_len = grub_loader_cmdline_size (argc - 1, argv + 1);
|
||||
|
||||
- err = grub_relocator_alloc_chunk_addr (relocator, &ch,
|
||||
- max_addr, cmdline_len);
|
||||
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
+ xen_state.max_addr, cmdline_len);
|
||||
if (err)
|
||||
goto fail;
|
||||
|
||||
grub_create_loader_cmdline (argc - 1, argv + 1,
|
||||
get_virtual_current_address (ch), cmdline_len);
|
||||
|
||||
- xen_module_info_page[n_modules].cmdline = max_addr - modules_target_start;
|
||||
- max_addr = ALIGN_UP (max_addr + cmdline_len, PAGE_SIZE);
|
||||
+ xen_state.module_info_page[xen_state.n_modules].cmdline =
|
||||
+ xen_state.max_addr - xen_state.modules_target_start;
|
||||
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + cmdline_len, PAGE_SIZE);
|
||||
|
||||
if (size)
|
||||
{
|
||||
- err = grub_relocator_alloc_chunk_addr (relocator, &ch, max_addr, size);
|
||||
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
+ xen_state.max_addr, size);
|
||||
if (err)
|
||||
goto fail;
|
||||
if (grub_file_read (file, get_virtual_current_address (ch), size)
|
||||
@@ -682,15 +697,17 @@ grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
- next_start.mod_len = max_addr + size - modules_target_start;
|
||||
- xen_module_info_page[n_modules].mod_start = max_addr - modules_target_start;
|
||||
- xen_module_info_page[n_modules].mod_end =
|
||||
- max_addr + size - modules_target_start;
|
||||
-
|
||||
- n_modules++;
|
||||
+ xen_state.next_start.mod_len =
|
||||
+ xen_state.max_addr + size - xen_state.modules_target_start;
|
||||
+ xen_state.module_info_page[xen_state.n_modules].mod_start =
|
||||
+ xen_state.max_addr - xen_state.modules_target_start;
|
||||
+ xen_state.module_info_page[xen_state.n_modules].mod_end =
|
||||
+ xen_state.max_addr + size - xen_state.modules_target_start;
|
||||
+
|
||||
+ xen_state.n_modules++;
|
||||
grub_dprintf ("xen", "module, addr=0x%x, size=0x%x\n",
|
||||
- (unsigned) max_addr, (unsigned) size);
|
||||
- max_addr = ALIGN_UP (max_addr + size, PAGE_SIZE);
|
||||
+ (unsigned) xen_state.max_addr, (unsigned) size);
|
||||
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + size, PAGE_SIZE);
|
||||
|
||||
|
||||
fail:
|
||||
--
|
||||
2.6.6
|
||||
|
368
0004-xen-add-elfnote.h-to-avoid-using-numbers-instead-of-.patch
Normal file
368
0004-xen-add-elfnote.h-to-avoid-using-numbers-instead-of-.patch
Normal file
@ -0,0 +1,368 @@
|
||||
From 0c3821e10ca0a47c436e3aacb230c47412cf517f Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:09 +0100
|
||||
Subject: [PATCH 04/11] xen: add elfnote.h to avoid using numbers instead of
|
||||
constants
|
||||
|
||||
Various features and parameters of a pv-kernel are specified via
|
||||
elf notes in the kernel image. Those notes are part of the interface
|
||||
between the Xen hypervisor and the kernel.
|
||||
|
||||
Instead of using num,bers in the code when interpreting the elf notes
|
||||
make use of the header supplied by Xen for that purpose.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
grub-core/loader/i386/xen_fileXX.c | 19 +--
|
||||
include/xen/elfnote.h | 281 +++++++++++++++++++++++++++++++++++++
|
||||
2 files changed, 291 insertions(+), 9 deletions(-)
|
||||
create mode 100644 include/xen/elfnote.h
|
||||
|
||||
diff --git a/grub-core/loader/i386/xen_fileXX.c b/grub-core/loader/i386/xen_fileXX.c
|
||||
index 36b40e4..03215ca 100644
|
||||
--- a/grub-core/loader/i386/xen_fileXX.c
|
||||
+++ b/grub-core/loader/i386/xen_fileXX.c
|
||||
@@ -18,6 +18,7 @@
|
||||
|
||||
#include <grub/xen_file.h>
|
||||
#include <grub/misc.h>
|
||||
+#include <xen/elfnote.h>
|
||||
|
||||
static grub_err_t
|
||||
parse_xen_guest (grub_elf_t elf, struct grub_xen_file_info *xi,
|
||||
@@ -203,35 +204,35 @@ parse_note (grub_elf_t elf, struct grub_xen_file_info *xi,
|
||||
xi->has_note = 1;
|
||||
switch (nh->n_type)
|
||||
{
|
||||
- case 1:
|
||||
+ case XEN_ELFNOTE_ENTRY:
|
||||
xi->entry_point = grub_le_to_cpu_addr (*(Elf_Addr *) desc);
|
||||
break;
|
||||
- case 2:
|
||||
+ case XEN_ELFNOTE_HYPERCALL_PAGE:
|
||||
xi->hypercall_page = grub_le_to_cpu_addr (*(Elf_Addr *) desc);
|
||||
xi->has_hypercall_page = 1;
|
||||
break;
|
||||
- case 3:
|
||||
+ case XEN_ELFNOTE_VIRT_BASE:
|
||||
xi->virt_base = grub_le_to_cpu_addr (*(Elf_Addr *) desc);
|
||||
break;
|
||||
- case 4:
|
||||
+ case XEN_ELFNOTE_PADDR_OFFSET:
|
||||
xi->paddr_offset = grub_le_to_cpu_addr (*(Elf_Addr *) desc);
|
||||
break;
|
||||
- case 5:
|
||||
+ case XEN_ELFNOTE_XEN_VERSION:
|
||||
grub_dprintf ("xen", "xenversion = `%s'\n", (char *) desc);
|
||||
break;
|
||||
- case 6:
|
||||
+ case XEN_ELFNOTE_GUEST_OS:
|
||||
grub_dprintf ("xen", "name = `%s'\n", (char *) desc);
|
||||
break;
|
||||
- case 7:
|
||||
+ case XEN_ELFNOTE_GUEST_VERSION:
|
||||
grub_dprintf ("xen", "version = `%s'\n", (char *) desc);
|
||||
break;
|
||||
- case 8:
|
||||
+ case XEN_ELFNOTE_LOADER:
|
||||
if (descsz < 7
|
||||
|| grub_memcmp (desc, "generic", descsz == 7 ? 7 : 8) != 0)
|
||||
return grub_error (GRUB_ERR_BAD_OS, "invalid loader");
|
||||
break;
|
||||
/* PAE */
|
||||
- case 9:
|
||||
+ case XEN_ELFNOTE_PAE_MODE:
|
||||
grub_dprintf ("xen", "pae = `%s', %d, %d\n", (char *) desc,
|
||||
xi->arch, descsz);
|
||||
if (xi->arch != GRUB_XEN_FILE_I386
|
||||
diff --git a/include/xen/elfnote.h b/include/xen/elfnote.h
|
||||
new file mode 100644
|
||||
index 0000000..353985f
|
||||
--- /dev/null
|
||||
+++ b/include/xen/elfnote.h
|
||||
@@ -0,0 +1,281 @@
|
||||
+/******************************************************************************
|
||||
+ * elfnote.h
|
||||
+ *
|
||||
+ * Definitions used for the Xen ELF notes.
|
||||
+ *
|
||||
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
+ * of this software and associated documentation files (the "Software"), to
|
||||
+ * deal in the Software without restriction, including without limitation the
|
||||
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||
+ * sell copies of the Software, and to permit persons to whom the Software is
|
||||
+ * furnished to do so, subject to the following conditions:
|
||||
+ *
|
||||
+ * The above copyright notice and this permission notice shall be included in
|
||||
+ * all copies or substantial portions of the Software.
|
||||
+ *
|
||||
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
+ * DEALINGS IN THE SOFTWARE.
|
||||
+ *
|
||||
+ * Copyright (c) 2006, Ian Campbell, XenSource Ltd.
|
||||
+ */
|
||||
+
|
||||
+#ifndef __XEN_PUBLIC_ELFNOTE_H__
|
||||
+#define __XEN_PUBLIC_ELFNOTE_H__
|
||||
+
|
||||
+/*
|
||||
+ * `incontents 200 elfnotes ELF notes
|
||||
+ *
|
||||
+ * The notes should live in a PT_NOTE segment and have "Xen" in the
|
||||
+ * name field.
|
||||
+ *
|
||||
+ * Numeric types are either 4 or 8 bytes depending on the content of
|
||||
+ * the desc field.
|
||||
+ *
|
||||
+ * LEGACY indicated the fields in the legacy __xen_guest string which
|
||||
+ * this a note type replaces.
|
||||
+ *
|
||||
+ * String values (for non-legacy) are NULL terminated ASCII, also known
|
||||
+ * as ASCIZ type.
|
||||
+ */
|
||||
+
|
||||
+/*
|
||||
+ * NAME=VALUE pair (string).
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_INFO 0
|
||||
+
|
||||
+/*
|
||||
+ * The virtual address of the entry point (numeric).
|
||||
+ *
|
||||
+ * LEGACY: VIRT_ENTRY
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_ENTRY 1
|
||||
+
|
||||
+/* The virtual address of the hypercall transfer page (numeric).
|
||||
+ *
|
||||
+ * LEGACY: HYPERCALL_PAGE. (n.b. legacy value is a physical page
|
||||
+ * number not a virtual address)
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_HYPERCALL_PAGE 2
|
||||
+
|
||||
+/* The virtual address where the kernel image should be mapped (numeric).
|
||||
+ *
|
||||
+ * Defaults to 0.
|
||||
+ *
|
||||
+ * LEGACY: VIRT_BASE
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_VIRT_BASE 3
|
||||
+
|
||||
+/*
|
||||
+ * The offset of the ELF paddr field from the actual required
|
||||
+ * pseudo-physical address (numeric).
|
||||
+ *
|
||||
+ * This is used to maintain backwards compatibility with older kernels
|
||||
+ * which wrote __PAGE_OFFSET into that field. This field defaults to 0
|
||||
+ * if not present.
|
||||
+ *
|
||||
+ * LEGACY: ELF_PADDR_OFFSET. (n.b. legacy default is VIRT_BASE)
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_PADDR_OFFSET 4
|
||||
+
|
||||
+/*
|
||||
+ * The version of Xen that we work with (string).
|
||||
+ *
|
||||
+ * LEGACY: XEN_VER
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_XEN_VERSION 5
|
||||
+
|
||||
+/*
|
||||
+ * The name of the guest operating system (string).
|
||||
+ *
|
||||
+ * LEGACY: GUEST_OS
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_GUEST_OS 6
|
||||
+
|
||||
+/*
|
||||
+ * The version of the guest operating system (string).
|
||||
+ *
|
||||
+ * LEGACY: GUEST_VER
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_GUEST_VERSION 7
|
||||
+
|
||||
+/*
|
||||
+ * The loader type (string).
|
||||
+ *
|
||||
+ * LEGACY: LOADER
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_LOADER 8
|
||||
+
|
||||
+/*
|
||||
+ * The kernel supports PAE (x86/32 only, string = "yes", "no" or
|
||||
+ * "bimodal").
|
||||
+ *
|
||||
+ * For compatibility with Xen 3.0.3 and earlier the "bimodal" setting
|
||||
+ * may be given as "yes,bimodal" which will cause older Xen to treat
|
||||
+ * this kernel as PAE.
|
||||
+ *
|
||||
+ * LEGACY: PAE (n.b. The legacy interface included a provision to
|
||||
+ * indicate 'extended-cr3' support allowing L3 page tables to be
|
||||
+ * placed above 4G. It is assumed that any kernel new enough to use
|
||||
+ * these ELF notes will include this and therefore "yes" here is
|
||||
+ * equivalent to "yes[entended-cr3]" in the __xen_guest interface.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_PAE_MODE 9
|
||||
+
|
||||
+/*
|
||||
+ * The features supported/required by this kernel (string).
|
||||
+ *
|
||||
+ * The string must consist of a list of feature names (as given in
|
||||
+ * features.h, without the "XENFEAT_" prefix) separated by '|'
|
||||
+ * characters. If a feature is required for the kernel to function
|
||||
+ * then the feature name must be preceded by a '!' character.
|
||||
+ *
|
||||
+ * LEGACY: FEATURES
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_FEATURES 10
|
||||
+
|
||||
+/*
|
||||
+ * The kernel requires the symbol table to be loaded (string = "yes" or "no")
|
||||
+ * LEGACY: BSD_SYMTAB (n.b. The legacy treated the presence or absence
|
||||
+ * of this string as a boolean flag rather than requiring "yes" or
|
||||
+ * "no".
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_BSD_SYMTAB 11
|
||||
+
|
||||
+/*
|
||||
+ * The lowest address the hypervisor hole can begin at (numeric).
|
||||
+ *
|
||||
+ * This must not be set higher than HYPERVISOR_VIRT_START. Its presence
|
||||
+ * also indicates to the hypervisor that the kernel can deal with the
|
||||
+ * hole starting at a higher address.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_HV_START_LOW 12
|
||||
+
|
||||
+/*
|
||||
+ * List of maddr_t-sized mask/value pairs describing how to recognize
|
||||
+ * (non-present) L1 page table entries carrying valid MFNs (numeric).
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_L1_MFN_VALID 13
|
||||
+
|
||||
+/*
|
||||
+ * Whether or not the guest supports cooperative suspend cancellation.
|
||||
+ * This is a numeric value.
|
||||
+ *
|
||||
+ * Default is 0
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_SUSPEND_CANCEL 14
|
||||
+
|
||||
+/*
|
||||
+ * The (non-default) location the initial phys-to-machine map should be
|
||||
+ * placed at by the hypervisor (Dom0) or the tools (DomU).
|
||||
+ * The kernel must be prepared for this mapping to be established using
|
||||
+ * large pages, despite such otherwise not being available to guests.
|
||||
+ * The kernel must also be able to handle the page table pages used for
|
||||
+ * this mapping not being accessible through the initial mapping.
|
||||
+ * (Only x86-64 supports this at present.)
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_INIT_P2M 15
|
||||
+
|
||||
+/*
|
||||
+ * Whether or not the guest can deal with being passed an initrd not
|
||||
+ * mapped through its initial page tables.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_MOD_START_PFN 16
|
||||
+
|
||||
+/*
|
||||
+ * The features supported by this kernel (numeric).
|
||||
+ *
|
||||
+ * Other than XEN_ELFNOTE_FEATURES on pre-4.2 Xen, this note allows a
|
||||
+ * kernel to specify support for features that older hypervisors don't
|
||||
+ * know about. The set of features 4.2 and newer hypervisors will
|
||||
+ * consider supported by the kernel is the combination of the sets
|
||||
+ * specified through this and the string note.
|
||||
+ *
|
||||
+ * LEGACY: FEATURES
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_SUPPORTED_FEATURES 17
|
||||
+
|
||||
+/*
|
||||
+ * Physical entry point into the kernel.
|
||||
+ *
|
||||
+ * 32bit entry point into the kernel. When requested to launch the
|
||||
+ * guest kernel in a HVM container, Xen will use this entry point to
|
||||
+ * launch the guest in 32bit protected mode with paging disabled.
|
||||
+ * Ignored otherwise.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_PHYS32_ENTRY 18
|
||||
+
|
||||
+/*
|
||||
+ * The number of the highest elfnote defined.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_MAX XEN_ELFNOTE_PHYS32_ENTRY
|
||||
+
|
||||
+/*
|
||||
+ * System information exported through crash notes.
|
||||
+ *
|
||||
+ * The kexec / kdump code will create one XEN_ELFNOTE_CRASH_INFO
|
||||
+ * note in case of a system crash. This note will contain various
|
||||
+ * information about the system, see xen/include/xen/elfcore.h.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_CRASH_INFO 0x1000001
|
||||
+
|
||||
+/*
|
||||
+ * System registers exported through crash notes.
|
||||
+ *
|
||||
+ * The kexec / kdump code will create one XEN_ELFNOTE_CRASH_REGS
|
||||
+ * note per cpu in case of a system crash. This note is architecture
|
||||
+ * specific and will contain registers not saved in the "CORE" note.
|
||||
+ * See xen/include/xen/elfcore.h for more information.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_CRASH_REGS 0x1000002
|
||||
+
|
||||
+
|
||||
+/*
|
||||
+ * xen dump-core none note.
|
||||
+ * xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_NONE
|
||||
+ * in its dump file to indicate that the file is xen dump-core
|
||||
+ * file. This note doesn't have any other information.
|
||||
+ * See tools/libxc/xc_core.h for more information.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_DUMPCORE_NONE 0x2000000
|
||||
+
|
||||
+/*
|
||||
+ * xen dump-core header note.
|
||||
+ * xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_HEADER
|
||||
+ * in its dump file.
|
||||
+ * See tools/libxc/xc_core.h for more information.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_DUMPCORE_HEADER 0x2000001
|
||||
+
|
||||
+/*
|
||||
+ * xen dump-core xen version note.
|
||||
+ * xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_XEN_VERSION
|
||||
+ * in its dump file. It contains the xen version obtained via the
|
||||
+ * XENVER hypercall.
|
||||
+ * See tools/libxc/xc_core.h for more information.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_DUMPCORE_XEN_VERSION 0x2000002
|
||||
+
|
||||
+/*
|
||||
+ * xen dump-core format version note.
|
||||
+ * xm dump-core code will create one XEN_ELFNOTE_DUMPCORE_FORMAT_VERSION
|
||||
+ * in its dump file. It contains a format version identifier.
|
||||
+ * See tools/libxc/xc_core.h for more information.
|
||||
+ */
|
||||
+#define XEN_ELFNOTE_DUMPCORE_FORMAT_VERSION 0x2000003
|
||||
+
|
||||
+#endif /* __XEN_PUBLIC_ELFNOTE_H__ */
|
||||
+
|
||||
+/*
|
||||
+ * Local variables:
|
||||
+ * mode: C
|
||||
+ * c-file-style: "BSD"
|
||||
+ * c-basic-offset: 4
|
||||
+ * tab-width: 4
|
||||
+ * indent-tabs-mode: nil
|
||||
+ * End:
|
||||
+ */
|
||||
--
|
||||
2.6.6
|
||||
|
342
0005-xen-synchronize-xen-header.patch
Normal file
342
0005-xen-synchronize-xen-header.patch
Normal file
@ -0,0 +1,342 @@
|
||||
From 21078a54248f25f9831c3b1007bec0cbfbd720a7 Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:10 +0100
|
||||
Subject: [PATCH 05/11] xen: synchronize xen header
|
||||
|
||||
Get actual version of include/xen/xen.h from the Xen repository in
|
||||
order to be able to use constants defined there.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
include/xen/arch-x86/xen-x86_32.h | 22 +++----
|
||||
include/xen/arch-x86/xen-x86_64.h | 8 +--
|
||||
include/xen/xen.h | 125 +++++++++++++++++++++++++++-----------
|
||||
3 files changed, 105 insertions(+), 50 deletions(-)
|
||||
|
||||
diff --git a/include/xen/arch-x86/xen-x86_32.h b/include/xen/arch-x86/xen-x86_32.h
|
||||
index 1504191..7eca6cd 100644
|
||||
--- a/include/xen/arch-x86/xen-x86_32.h
|
||||
+++ b/include/xen/arch-x86/xen-x86_32.h
|
||||
@@ -58,34 +58,31 @@
|
||||
#define __HYPERVISOR_VIRT_START_PAE 0xF5800000
|
||||
#define __MACH2PHYS_VIRT_START_PAE 0xF5800000
|
||||
#define __MACH2PHYS_VIRT_END_PAE 0xF6800000
|
||||
-#define HYPERVISOR_VIRT_START_PAE \
|
||||
- mk_unsigned_long(__HYPERVISOR_VIRT_START_PAE)
|
||||
-#define MACH2PHYS_VIRT_START_PAE \
|
||||
- mk_unsigned_long(__MACH2PHYS_VIRT_START_PAE)
|
||||
-#define MACH2PHYS_VIRT_END_PAE \
|
||||
- mk_unsigned_long(__MACH2PHYS_VIRT_END_PAE)
|
||||
+#define HYPERVISOR_VIRT_START_PAE xen_mk_ulong(__HYPERVISOR_VIRT_START_PAE)
|
||||
+#define MACH2PHYS_VIRT_START_PAE xen_mk_ulong(__MACH2PHYS_VIRT_START_PAE)
|
||||
+#define MACH2PHYS_VIRT_END_PAE xen_mk_ulong(__MACH2PHYS_VIRT_END_PAE)
|
||||
|
||||
/* Non-PAE bounds are obsolete. */
|
||||
#define __HYPERVISOR_VIRT_START_NONPAE 0xFC000000
|
||||
#define __MACH2PHYS_VIRT_START_NONPAE 0xFC000000
|
||||
#define __MACH2PHYS_VIRT_END_NONPAE 0xFC400000
|
||||
#define HYPERVISOR_VIRT_START_NONPAE \
|
||||
- mk_unsigned_long(__HYPERVISOR_VIRT_START_NONPAE)
|
||||
+ xen_mk_ulong(__HYPERVISOR_VIRT_START_NONPAE)
|
||||
#define MACH2PHYS_VIRT_START_NONPAE \
|
||||
- mk_unsigned_long(__MACH2PHYS_VIRT_START_NONPAE)
|
||||
+ xen_mk_ulong(__MACH2PHYS_VIRT_START_NONPAE)
|
||||
#define MACH2PHYS_VIRT_END_NONPAE \
|
||||
- mk_unsigned_long(__MACH2PHYS_VIRT_END_NONPAE)
|
||||
+ xen_mk_ulong(__MACH2PHYS_VIRT_END_NONPAE)
|
||||
|
||||
#define __HYPERVISOR_VIRT_START __HYPERVISOR_VIRT_START_PAE
|
||||
#define __MACH2PHYS_VIRT_START __MACH2PHYS_VIRT_START_PAE
|
||||
#define __MACH2PHYS_VIRT_END __MACH2PHYS_VIRT_END_PAE
|
||||
|
||||
#ifndef HYPERVISOR_VIRT_START
|
||||
-#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START)
|
||||
+#define HYPERVISOR_VIRT_START xen_mk_ulong(__HYPERVISOR_VIRT_START)
|
||||
#endif
|
||||
|
||||
-#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START)
|
||||
-#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END)
|
||||
+#define MACH2PHYS_VIRT_START xen_mk_ulong(__MACH2PHYS_VIRT_START)
|
||||
+#define MACH2PHYS_VIRT_END xen_mk_ulong(__MACH2PHYS_VIRT_END)
|
||||
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>2)
|
||||
#ifndef machine_to_phys_mapping
|
||||
#define machine_to_phys_mapping ((unsigned long *)MACH2PHYS_VIRT_START)
|
||||
@@ -104,6 +101,7 @@
|
||||
do { if ( sizeof(hnd) == 8 ) *(uint64_t *)&(hnd) = 0; \
|
||||
(hnd).p = val; \
|
||||
} while ( 0 )
|
||||
+#define int64_aligned_t int64_t __attribute__((aligned(8)))
|
||||
#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
|
||||
#define __XEN_GUEST_HANDLE_64(name) __guest_handle_64_ ## name
|
||||
#define XEN_GUEST_HANDLE_64(name) __XEN_GUEST_HANDLE_64(name)
|
||||
diff --git a/include/xen/arch-x86/xen-x86_64.h b/include/xen/arch-x86/xen-x86_64.h
|
||||
index 1c4e159..5e18613 100644
|
||||
--- a/include/xen/arch-x86/xen-x86_64.h
|
||||
+++ b/include/xen/arch-x86/xen-x86_64.h
|
||||
@@ -76,12 +76,12 @@
|
||||
#define __MACH2PHYS_VIRT_END 0xFFFF804000000000
|
||||
|
||||
#ifndef HYPERVISOR_VIRT_START
|
||||
-#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START)
|
||||
-#define HYPERVISOR_VIRT_END mk_unsigned_long(__HYPERVISOR_VIRT_END)
|
||||
+#define HYPERVISOR_VIRT_START xen_mk_ulong(__HYPERVISOR_VIRT_START)
|
||||
+#define HYPERVISOR_VIRT_END xen_mk_ulong(__HYPERVISOR_VIRT_END)
|
||||
#endif
|
||||
|
||||
-#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START)
|
||||
-#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END)
|
||||
+#define MACH2PHYS_VIRT_START xen_mk_ulong(__MACH2PHYS_VIRT_START)
|
||||
+#define MACH2PHYS_VIRT_END xen_mk_ulong(__MACH2PHYS_VIRT_END)
|
||||
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>3)
|
||||
#ifndef machine_to_phys_mapping
|
||||
#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START)
|
||||
diff --git a/include/xen/xen.h b/include/xen/xen.h
|
||||
index a6a2092..6c9e42b 100644
|
||||
--- a/include/xen/xen.h
|
||||
+++ b/include/xen/xen.h
|
||||
@@ -52,6 +52,19 @@ DEFINE_XEN_GUEST_HANDLE(void);
|
||||
DEFINE_XEN_GUEST_HANDLE(uint64_t);
|
||||
DEFINE_XEN_GUEST_HANDLE(xen_pfn_t);
|
||||
DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
|
||||
+
|
||||
+/* Turn a plain number into a C unsigned (long) constant. */
|
||||
+#define __xen_mk_uint(x) x ## U
|
||||
+#define __xen_mk_ulong(x) x ## UL
|
||||
+#define xen_mk_uint(x) __xen_mk_uint(x)
|
||||
+#define xen_mk_ulong(x) __xen_mk_ulong(x)
|
||||
+
|
||||
+#else
|
||||
+
|
||||
+/* In assembly code we cannot use C numeric constant suffixes. */
|
||||
+#define xen_mk_uint(x) x
|
||||
+#define xen_mk_ulong(x) x
|
||||
+
|
||||
#endif
|
||||
|
||||
/*
|
||||
@@ -101,6 +114,7 @@ DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
|
||||
#define __HYPERVISOR_kexec_op 37
|
||||
#define __HYPERVISOR_tmem_op 38
|
||||
#define __HYPERVISOR_xc_reserved_op 39 /* reserved for XenClient */
|
||||
+#define __HYPERVISOR_xenpmu_op 40
|
||||
|
||||
/* Architecture-specific hypercall definitions. */
|
||||
#define __HYPERVISOR_arch_0 48
|
||||
@@ -160,6 +174,7 @@ DEFINE_XEN_GUEST_HANDLE(xen_ulong_t);
|
||||
#define VIRQ_MEM_EVENT 10 /* G. (DOM0) A memory event has occured */
|
||||
#define VIRQ_XC_RESERVED 11 /* G. Reserved for XenClient */
|
||||
#define VIRQ_ENOMEM 12 /* G. (DOM0) Low on heap memory */
|
||||
+#define VIRQ_XENPMU 13 /* V. PMC interrupt */
|
||||
|
||||
/* Architecture-specific VIRQ definitions. */
|
||||
#define VIRQ_ARCH_0 16
|
||||
@@ -449,13 +464,13 @@ DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
|
||||
/* When specifying UVMF_MULTI, also OR in a pointer to a CPU bitmap. */
|
||||
/* UVMF_LOCAL is merely UVMF_MULTI with a NULL bitmap pointer. */
|
||||
/* ` enum uvm_flags { */
|
||||
-#define UVMF_NONE (0UL<<0) /* No flushing at all. */
|
||||
-#define UVMF_TLB_FLUSH (1UL<<0) /* Flush entire TLB(s). */
|
||||
-#define UVMF_INVLPG (2UL<<0) /* Flush only one entry. */
|
||||
-#define UVMF_FLUSHTYPE_MASK (3UL<<0)
|
||||
-#define UVMF_MULTI (0UL<<2) /* Flush subset of TLBs. */
|
||||
-#define UVMF_LOCAL (0UL<<2) /* Flush local TLB. */
|
||||
-#define UVMF_ALL (1UL<<2) /* Flush all TLBs. */
|
||||
+#define UVMF_NONE (xen_mk_ulong(0)<<0) /* No flushing at all. */
|
||||
+#define UVMF_TLB_FLUSH (xen_mk_ulong(1)<<0) /* Flush entire TLB(s). */
|
||||
+#define UVMF_INVLPG (xen_mk_ulong(2)<<0) /* Flush only one entry. */
|
||||
+#define UVMF_FLUSHTYPE_MASK (xen_mk_ulong(3)<<0)
|
||||
+#define UVMF_MULTI (xen_mk_ulong(0)<<2) /* Flush subset of TLBs. */
|
||||
+#define UVMF_LOCAL (xen_mk_ulong(0)<<2) /* Flush local TLB. */
|
||||
+#define UVMF_ALL (xen_mk_ulong(1)<<2) /* Flush all TLBs. */
|
||||
/* ` } */
|
||||
|
||||
/*
|
||||
@@ -486,17 +501,27 @@ DEFINE_XEN_GUEST_HANDLE(mmuext_op_t);
|
||||
/* x86/PAE guests: support PDPTs above 4GB. */
|
||||
#define VMASST_TYPE_pae_extended_cr3 3
|
||||
|
||||
-#define MAX_VMASST_TYPE 3
|
||||
-
|
||||
-#ifndef __ASSEMBLY__
|
||||
+/*
|
||||
+ * x86/64 guests: strictly hide M2P from user mode.
|
||||
+ * This allows the guest to control respective hypervisor behavior:
|
||||
+ * - when not set, L4 tables get created with the respective slot blank,
|
||||
+ * and whenever the L4 table gets used as a kernel one the missing
|
||||
+ * mapping gets inserted,
|
||||
+ * - when set, L4 tables get created with the respective slot initialized
|
||||
+ * as before, and whenever the L4 table gets used as a user one the
|
||||
+ * mapping gets zapped.
|
||||
+ */
|
||||
+#define VMASST_TYPE_m2p_strict 32
|
||||
|
||||
-typedef uint16_t domid_t;
|
||||
+#if __XEN_INTERFACE_VERSION__ < 0x00040600
|
||||
+#define MAX_VMASST_TYPE 3
|
||||
+#endif
|
||||
|
||||
/* Domain ids >= DOMID_FIRST_RESERVED cannot be used for ordinary domains. */
|
||||
-#define DOMID_FIRST_RESERVED (0x7FF0U)
|
||||
+#define DOMID_FIRST_RESERVED xen_mk_uint(0x7FF0)
|
||||
|
||||
/* DOMID_SELF is used in certain contexts to refer to oneself. */
|
||||
-#define DOMID_SELF (0x7FF0U)
|
||||
+#define DOMID_SELF xen_mk_uint(0x7FF0)
|
||||
|
||||
/*
|
||||
* DOMID_IO is used to restrict page-table updates to mapping I/O memory.
|
||||
@@ -507,7 +532,7 @@ typedef uint16_t domid_t;
|
||||
* This only makes sense in MMUEXT_SET_FOREIGNDOM, but in that context can
|
||||
* be specified by any calling domain.
|
||||
*/
|
||||
-#define DOMID_IO (0x7FF1U)
|
||||
+#define DOMID_IO xen_mk_uint(0x7FF1)
|
||||
|
||||
/*
|
||||
* DOMID_XEN is used to allow privileged domains to map restricted parts of
|
||||
@@ -515,17 +540,21 @@ typedef uint16_t domid_t;
|
||||
* This only makes sense in MMUEXT_SET_FOREIGNDOM, and is only permitted if
|
||||
* the caller is privileged.
|
||||
*/
|
||||
-#define DOMID_XEN (0x7FF2U)
|
||||
+#define DOMID_XEN xen_mk_uint(0x7FF2)
|
||||
|
||||
/*
|
||||
* DOMID_COW is used as the owner of sharable pages */
|
||||
-#define DOMID_COW (0x7FF3U)
|
||||
+#define DOMID_COW xen_mk_uint(0x7FF3)
|
||||
|
||||
/* DOMID_INVALID is used to identify pages with unknown owner. */
|
||||
-#define DOMID_INVALID (0x7FF4U)
|
||||
+#define DOMID_INVALID xen_mk_uint(0x7FF4)
|
||||
|
||||
/* Idle domain. */
|
||||
-#define DOMID_IDLE (0x7FFFU)
|
||||
+#define DOMID_IDLE xen_mk_uint(0x7FFF)
|
||||
+
|
||||
+#ifndef __ASSEMBLY__
|
||||
+
|
||||
+typedef uint16_t domid_t;
|
||||
|
||||
/*
|
||||
* Send an array of these to HYPERVISOR_mmu_update().
|
||||
@@ -682,6 +711,12 @@ struct shared_info {
|
||||
uint32_t wc_version; /* Version counter: see vcpu_time_info_t. */
|
||||
uint32_t wc_sec; /* Secs 00:00:00 UTC, Jan 1, 1970. */
|
||||
uint32_t wc_nsec; /* Nsecs 00:00:00 UTC, Jan 1, 1970. */
|
||||
+#if !defined(__i386__)
|
||||
+ uint32_t wc_sec_hi;
|
||||
+# define xen_wc_sec_hi wc_sec_hi
|
||||
+#elif !defined(__XEN__) && !defined(__XEN_TOOLS__)
|
||||
+# define xen_wc_sec_hi arch.wc_sec_hi
|
||||
+#endif
|
||||
|
||||
struct arch_shared_info arch;
|
||||
|
||||
@@ -698,24 +733,27 @@ typedef struct shared_info shared_info_t;
|
||||
* 3. This the order of bootstrap elements in the initial virtual region:
|
||||
* a. relocated kernel image
|
||||
* b. initial ram disk [mod_start, mod_len]
|
||||
+ * (may be omitted)
|
||||
* c. list of allocated page frames [mfn_list, nr_pages]
|
||||
* (unless relocated due to XEN_ELFNOTE_INIT_P2M)
|
||||
* d. start_info_t structure [register ESI (x86)]
|
||||
- * e. bootstrap page tables [pt_base and CR3 (x86)]
|
||||
- * f. bootstrap stack [register ESP (x86)]
|
||||
+ * in case of dom0 this page contains the console info, too
|
||||
+ * e. unless dom0: xenstore ring page
|
||||
+ * f. unless dom0: console ring page
|
||||
+ * g. bootstrap page tables [pt_base and CR3 (x86)]
|
||||
+ * h. bootstrap stack [register ESP (x86)]
|
||||
* 4. Bootstrap elements are packed together, but each is 4kB-aligned.
|
||||
- * 5. The initial ram disk may be omitted.
|
||||
- * 6. The list of page frames forms a contiguous 'pseudo-physical' memory
|
||||
+ * 5. The list of page frames forms a contiguous 'pseudo-physical' memory
|
||||
* layout for the domain. In particular, the bootstrap virtual-memory
|
||||
* region is a 1:1 mapping to the first section of the pseudo-physical map.
|
||||
- * 7. All bootstrap elements are mapped read-writable for the guest OS. The
|
||||
+ * 6. All bootstrap elements are mapped read-writable for the guest OS. The
|
||||
* only exception is the bootstrap page table, which is mapped read-only.
|
||||
- * 8. There is guaranteed to be at least 512kB padding after the final
|
||||
+ * 7. There is guaranteed to be at least 512kB padding after the final
|
||||
* bootstrap element. If necessary, the bootstrap virtual region is
|
||||
* extended by an extra 4MB to ensure this.
|
||||
*
|
||||
* Note: Prior to 25833:bb85bbccb1c9. ("x86/32-on-64 adjust Dom0 initial page
|
||||
- * table layout") a bug caused the pt_base (3.e above) and cr3 to not point
|
||||
+ * table layout") a bug caused the pt_base (3.g above) and cr3 to not point
|
||||
* to the start of the guest page tables (it was offset by two pages).
|
||||
* This only manifested itself on 32-on-64 dom0 kernels and not 32-on-64 domU
|
||||
* or 64-bit kernels of any colour. The page tables for a 32-on-64 dom0 got
|
||||
@@ -759,6 +797,29 @@ struct start_info {
|
||||
};
|
||||
typedef struct start_info start_info_t;
|
||||
|
||||
+/*
|
||||
+ * Start of day structure passed to PVH guests in %ebx.
|
||||
+ *
|
||||
+ * NOTE: nothing will be loaded at physical address 0, so
|
||||
+ * a 0 value in any of the address fields should be treated
|
||||
+ * as not present.
|
||||
+ */
|
||||
+struct hvm_start_info {
|
||||
+#define HVM_START_MAGIC_VALUE 0x336ec578
|
||||
+ uint32_t magic; /* Contains the magic value 0x336ec578 */
|
||||
+ /* ("xEn3" with the 0x80 bit of the "E" set).*/
|
||||
+ uint32_t flags; /* SIF_xxx flags. */
|
||||
+ uint32_t cmdline_paddr; /* Physical address of the command line. */
|
||||
+ uint32_t nr_modules; /* Number of modules passed to the kernel. */
|
||||
+ uint32_t modlist_paddr; /* Physical address of an array of */
|
||||
+ /* hvm_modlist_entry. */
|
||||
+};
|
||||
+
|
||||
+struct hvm_modlist_entry {
|
||||
+ uint32_t paddr; /* Physical address of the module. */
|
||||
+ uint32_t size; /* Size of the module in bytes. */
|
||||
+};
|
||||
+
|
||||
/* New console union for dom0 introduced in 0x00030203. */
|
||||
#if __XEN_INTERFACE_VERSION__ < 0x00030203
|
||||
#define console_mfn console.domU.mfn
|
||||
@@ -771,6 +832,8 @@ typedef struct start_info start_info_t;
|
||||
#define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain? */
|
||||
#define SIF_MULTIBOOT_MOD (1<<2) /* Is mod_start a multiboot module? */
|
||||
#define SIF_MOD_START_PFN (1<<3) /* Is mod_start a PFN? */
|
||||
+#define SIF_VIRT_P2M_4TOOLS (1<<4) /* Do Xen tools understand a virt. mapped */
|
||||
+ /* P->M making the 3 level tree obsolete? */
|
||||
#define SIF_PM_MASK (0xFF<<8) /* reserve 1 byte for xen-pm options */
|
||||
|
||||
/*
|
||||
@@ -851,25 +914,19 @@ typedef struct dom0_vga_console_info {
|
||||
|
||||
typedef uint8_t xen_domain_handle_t[16];
|
||||
|
||||
-/* Turn a plain number into a C unsigned long constant. */
|
||||
-#define __mk_unsigned_long(x) x ## UL
|
||||
-#define mk_unsigned_long(x) __mk_unsigned_long(x)
|
||||
-
|
||||
__DEFINE_XEN_GUEST_HANDLE(uint8, uint8_t);
|
||||
__DEFINE_XEN_GUEST_HANDLE(uint16, uint16_t);
|
||||
__DEFINE_XEN_GUEST_HANDLE(uint32, uint32_t);
|
||||
__DEFINE_XEN_GUEST_HANDLE(uint64, uint64_t);
|
||||
|
||||
-#else /* __ASSEMBLY__ */
|
||||
-
|
||||
-/* In assembly code we cannot use C numeric constant suffixes. */
|
||||
-#define mk_unsigned_long(x) x
|
||||
-
|
||||
#endif /* !__ASSEMBLY__ */
|
||||
|
||||
/* Default definitions for macros used by domctl/sysctl. */
|
||||
#if defined(__XEN__) || defined(__XEN_TOOLS__)
|
||||
|
||||
+#ifndef int64_aligned_t
|
||||
+#define int64_aligned_t int64_t
|
||||
+#endif
|
||||
#ifndef uint64_aligned_t
|
||||
#define uint64_aligned_t uint64_t
|
||||
#endif
|
||||
--
|
||||
2.6.6
|
||||
|
212
0006-xen-factor-out-p2m-list-allocation-into-separate-fun.patch
Normal file
212
0006-xen-factor-out-p2m-list-allocation-into-separate-fun.patch
Normal file
@ -0,0 +1,212 @@
|
||||
From e7afb8d41e024a88bfc78f4ee579e7c5dbd39616 Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:11 +0100
|
||||
Subject: [PATCH 06/11] xen: factor out p2m list allocation into separate
|
||||
function
|
||||
|
||||
Do the p2m list allocation of the to be loaded kernel in a separate
|
||||
function. This will allow doing the p2m list allocation at different
|
||||
times of the boot preparations depending on the features the kernel
|
||||
is supporting.
|
||||
|
||||
While at this remove superfluous setting of first_p2m_pfn and
|
||||
nr_p2m_frames as those are needed only in case of the p2m list not
|
||||
being mapped by the initial kernel mapping.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
grub-core/loader/i386/xen.c | 89 ++++++++++++++++++++++++++-------------------
|
||||
1 file changed, 51 insertions(+), 38 deletions(-)
|
||||
|
||||
diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
|
||||
index 691c22e..a2fd1f6 100644
|
||||
--- a/grub-core/loader/i386/xen.c
|
||||
+++ b/grub-core/loader/i386/xen.c
|
||||
@@ -44,8 +44,10 @@ GRUB_MOD_LICENSE ("GPLv3+");
|
||||
|
||||
struct xen_loader_state {
|
||||
struct grub_relocator *relocator;
|
||||
+ struct grub_relocator_xen_state state;
|
||||
struct start_info next_start;
|
||||
struct grub_xen_file_info xen_inf;
|
||||
+ grub_xen_mfn_t *virt_mfn_list;
|
||||
grub_uint64_t max_addr;
|
||||
struct xen_multiboot_mod_list *module_info_page;
|
||||
grub_uint64_t modules_target_start;
|
||||
@@ -170,7 +172,7 @@ generate_page_table (grub_uint64_t *where, grub_uint64_t paging_start,
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
-set_mfns (grub_xen_mfn_t * new_mfn_list, grub_xen_mfn_t pfn)
|
||||
+set_mfns (grub_xen_mfn_t pfn)
|
||||
{
|
||||
grub_xen_mfn_t i, t;
|
||||
grub_xen_mfn_t cn_pfn = -1, st_pfn = -1;
|
||||
@@ -179,32 +181,34 @@ set_mfns (grub_xen_mfn_t * new_mfn_list, grub_xen_mfn_t pfn)
|
||||
|
||||
for (i = 0; i < grub_xen_start_page_addr->nr_pages; i++)
|
||||
{
|
||||
- if (new_mfn_list[i] == grub_xen_start_page_addr->console.domU.mfn)
|
||||
+ if (xen_state.virt_mfn_list[i] ==
|
||||
+ grub_xen_start_page_addr->console.domU.mfn)
|
||||
cn_pfn = i;
|
||||
- if (new_mfn_list[i] == grub_xen_start_page_addr->store_mfn)
|
||||
+ if (xen_state.virt_mfn_list[i] == grub_xen_start_page_addr->store_mfn)
|
||||
st_pfn = i;
|
||||
}
|
||||
if (cn_pfn == (grub_xen_mfn_t)-1)
|
||||
return grub_error (GRUB_ERR_BUG, "no console");
|
||||
if (st_pfn == (grub_xen_mfn_t)-1)
|
||||
return grub_error (GRUB_ERR_BUG, "no store");
|
||||
- t = new_mfn_list[pfn];
|
||||
- new_mfn_list[pfn] = new_mfn_list[cn_pfn];
|
||||
- new_mfn_list[cn_pfn] = t;
|
||||
- t = new_mfn_list[pfn + 1];
|
||||
- new_mfn_list[pfn + 1] = new_mfn_list[st_pfn];
|
||||
- new_mfn_list[st_pfn] = t;
|
||||
-
|
||||
- m2p_updates[0].ptr = page2offset (new_mfn_list[pfn]) | MMU_MACHPHYS_UPDATE;
|
||||
+ t = xen_state.virt_mfn_list[pfn];
|
||||
+ xen_state.virt_mfn_list[pfn] = xen_state.virt_mfn_list[cn_pfn];
|
||||
+ xen_state.virt_mfn_list[cn_pfn] = t;
|
||||
+ t = xen_state.virt_mfn_list[pfn + 1];
|
||||
+ xen_state.virt_mfn_list[pfn + 1] = xen_state.virt_mfn_list[st_pfn];
|
||||
+ xen_state.virt_mfn_list[st_pfn] = t;
|
||||
+
|
||||
+ m2p_updates[0].ptr =
|
||||
+ page2offset (xen_state.virt_mfn_list[pfn]) | MMU_MACHPHYS_UPDATE;
|
||||
m2p_updates[0].val = pfn;
|
||||
m2p_updates[1].ptr =
|
||||
- page2offset (new_mfn_list[pfn + 1]) | MMU_MACHPHYS_UPDATE;
|
||||
+ page2offset (xen_state.virt_mfn_list[pfn + 1]) | MMU_MACHPHYS_UPDATE;
|
||||
m2p_updates[1].val = pfn + 1;
|
||||
m2p_updates[2].ptr =
|
||||
- page2offset (new_mfn_list[cn_pfn]) | MMU_MACHPHYS_UPDATE;
|
||||
+ page2offset (xen_state.virt_mfn_list[cn_pfn]) | MMU_MACHPHYS_UPDATE;
|
||||
m2p_updates[2].val = cn_pfn;
|
||||
m2p_updates[3].ptr =
|
||||
- page2offset (new_mfn_list[st_pfn]) | MMU_MACHPHYS_UPDATE;
|
||||
+ page2offset (xen_state.virt_mfn_list[st_pfn]) | MMU_MACHPHYS_UPDATE;
|
||||
m2p_updates[3].val = st_pfn;
|
||||
|
||||
grub_xen_mmu_update (m2p_updates, 4, NULL, DOMID_SELF);
|
||||
@@ -213,43 +217,52 @@ set_mfns (grub_xen_mfn_t * new_mfn_list, grub_xen_mfn_t pfn)
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
+grub_xen_p2m_alloc (void)
|
||||
+{
|
||||
+ grub_relocator_chunk_t ch;
|
||||
+ grub_size_t p2msize;
|
||||
+ grub_err_t err;
|
||||
+
|
||||
+ xen_state.state.mfn_list = xen_state.max_addr;
|
||||
+ xen_state.next_start.mfn_list =
|
||||
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
+ p2msize = sizeof (grub_xen_mfn_t) * grub_xen_start_page_addr->nr_pages;
|
||||
+ err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
+ xen_state.max_addr, p2msize);
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ xen_state.virt_mfn_list = get_virtual_current_address (ch);
|
||||
+ grub_memcpy (xen_state.virt_mfn_list,
|
||||
+ (void *) grub_xen_start_page_addr->mfn_list, p2msize);
|
||||
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + p2msize, PAGE_SIZE);
|
||||
+
|
||||
+ return GRUB_ERR_NONE;
|
||||
+}
|
||||
+
|
||||
+static grub_err_t
|
||||
grub_xen_boot (void)
|
||||
{
|
||||
- struct grub_relocator_xen_state state;
|
||||
grub_relocator_chunk_t ch;
|
||||
grub_err_t err;
|
||||
- grub_size_t pgtsize;
|
||||
struct start_info *nst;
|
||||
grub_uint64_t nr_info_pages;
|
||||
grub_uint64_t nr_pages, nr_pt_pages, nr_need_pages;
|
||||
struct gnttab_set_version gnttab_setver;
|
||||
- grub_xen_mfn_t *new_mfn_list;
|
||||
grub_size_t i;
|
||||
|
||||
if (grub_xen_n_allocated_shared_pages)
|
||||
return grub_error (GRUB_ERR_BUG, "active grants");
|
||||
|
||||
- state.mfn_list = xen_state.max_addr;
|
||||
- xen_state.next_start.mfn_list =
|
||||
- xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
- xen_state.next_start.first_p2m_pfn = xen_state.max_addr >> PAGE_SHIFT;
|
||||
- pgtsize = sizeof (grub_xen_mfn_t) * grub_xen_start_page_addr->nr_pages;
|
||||
- err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
- xen_state.max_addr, pgtsize);
|
||||
- xen_state.next_start.nr_p2m_frames = (pgtsize + PAGE_SIZE - 1) >> PAGE_SHIFT;
|
||||
+ err = grub_xen_p2m_alloc ();
|
||||
if (err)
|
||||
return err;
|
||||
- new_mfn_list = get_virtual_current_address (ch);
|
||||
- grub_memcpy (new_mfn_list,
|
||||
- (void *) grub_xen_start_page_addr->mfn_list, pgtsize);
|
||||
- xen_state.max_addr = ALIGN_UP (xen_state.max_addr + pgtsize, PAGE_SIZE);
|
||||
|
||||
err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
xen_state.max_addr,
|
||||
sizeof (xen_state.next_start));
|
||||
if (err)
|
||||
return err;
|
||||
- state.start_info = xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
+ xen_state.state.start_info = xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
nst = get_virtual_current_address (ch);
|
||||
xen_state.max_addr =
|
||||
ALIGN_UP (xen_state.max_addr + sizeof (xen_state.next_start), PAGE_SIZE);
|
||||
@@ -262,14 +275,14 @@ grub_xen_boot (void)
|
||||
xen_state.next_start.console.domU = grub_xen_start_page_addr->console.domU;
|
||||
xen_state.next_start.shared_info = grub_xen_start_page_addr->shared_info;
|
||||
|
||||
- err = set_mfns (new_mfn_list, xen_state.max_addr >> PAGE_SHIFT);
|
||||
+ err = set_mfns (xen_state.max_addr >> PAGE_SHIFT);
|
||||
if (err)
|
||||
return err;
|
||||
xen_state.max_addr += 2 * PAGE_SIZE;
|
||||
|
||||
xen_state.next_start.pt_base =
|
||||
xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
- state.paging_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
+ xen_state.state.paging_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
|
||||
nr_info_pages = xen_state.max_addr >> PAGE_SHIFT;
|
||||
nr_pages = nr_info_pages;
|
||||
@@ -298,15 +311,15 @@ grub_xen_boot (void)
|
||||
|
||||
generate_page_table (get_virtual_current_address (ch),
|
||||
xen_state.max_addr >> PAGE_SHIFT, nr_pages,
|
||||
- xen_state.xen_inf.virt_base, new_mfn_list);
|
||||
+ xen_state.xen_inf.virt_base, xen_state.virt_mfn_list);
|
||||
|
||||
xen_state.max_addr += page2offset (nr_pt_pages);
|
||||
- state.stack = xen_state.max_addr + STACK_SIZE + xen_state.xen_inf.virt_base;
|
||||
- state.entry_point = xen_state.xen_inf.entry_point;
|
||||
+ xen_state.state.stack =
|
||||
+ xen_state.max_addr + STACK_SIZE + xen_state.xen_inf.virt_base;
|
||||
+ xen_state.state.entry_point = xen_state.xen_inf.entry_point;
|
||||
|
||||
- xen_state.next_start.nr_p2m_frames += nr_pt_pages;
|
||||
xen_state.next_start.nr_pt_frames = nr_pt_pages;
|
||||
- state.paging_size = nr_pt_pages;
|
||||
+ xen_state.state.paging_size = nr_pt_pages;
|
||||
|
||||
*nst = xen_state.next_start;
|
||||
|
||||
@@ -318,7 +331,7 @@ grub_xen_boot (void)
|
||||
for (i = 0; i < ARRAY_SIZE (grub_xen_shared_info->evtchn_pending); i++)
|
||||
grub_xen_shared_info->evtchn_pending[i] = 0;
|
||||
|
||||
- return grub_relocator_xen_boot (xen_state.relocator, state, nr_pages,
|
||||
+ return grub_relocator_xen_boot (xen_state.relocator, xen_state.state, nr_pages,
|
||||
xen_state.xen_inf.virt_base <
|
||||
PAGE_SIZE ? page2offset (nr_pages) : 0,
|
||||
nr_pages - 1,
|
||||
--
|
||||
2.6.6
|
||||
|
121
0007-xen-factor-out-allocation-of-special-pages-into-sepa.patch
Normal file
121
0007-xen-factor-out-allocation-of-special-pages-into-sepa.patch
Normal file
@ -0,0 +1,121 @@
|
||||
From 7f6888bb015764b99d90892bc506ded98f6ed9fe Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:12 +0100
|
||||
Subject: [PATCH 07/11] xen: factor out allocation of special pages into
|
||||
separate function
|
||||
|
||||
Do the allocation of special pages (start info, console and xenbus
|
||||
ring buffers) in a separate function. This will allow to do the
|
||||
allocation at different times of the boot preparations depending on
|
||||
the features the kernel is supporting.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
grub-core/loader/i386/xen.c | 48 +++++++++++++++++++++++++++++----------------
|
||||
1 file changed, 31 insertions(+), 17 deletions(-)
|
||||
|
||||
diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
|
||||
index a2fd1f6..a80c0f8 100644
|
||||
--- a/grub-core/loader/i386/xen.c
|
||||
+++ b/grub-core/loader/i386/xen.c
|
||||
@@ -48,6 +48,8 @@ struct xen_loader_state {
|
||||
struct start_info next_start;
|
||||
struct grub_xen_file_info xen_inf;
|
||||
grub_xen_mfn_t *virt_mfn_list;
|
||||
+ struct start_info *virt_start_info;
|
||||
+ grub_xen_mfn_t console_pfn;
|
||||
grub_uint64_t max_addr;
|
||||
struct xen_multiboot_mod_list *module_info_page;
|
||||
grub_uint64_t modules_target_start;
|
||||
@@ -240,22 +242,10 @@ grub_xen_p2m_alloc (void)
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
-grub_xen_boot (void)
|
||||
+grub_xen_special_alloc (void)
|
||||
{
|
||||
grub_relocator_chunk_t ch;
|
||||
grub_err_t err;
|
||||
- struct start_info *nst;
|
||||
- grub_uint64_t nr_info_pages;
|
||||
- grub_uint64_t nr_pages, nr_pt_pages, nr_need_pages;
|
||||
- struct gnttab_set_version gnttab_setver;
|
||||
- grub_size_t i;
|
||||
-
|
||||
- if (grub_xen_n_allocated_shared_pages)
|
||||
- return grub_error (GRUB_ERR_BUG, "active grants");
|
||||
-
|
||||
- err = grub_xen_p2m_alloc ();
|
||||
- if (err)
|
||||
- return err;
|
||||
|
||||
err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
xen_state.max_addr,
|
||||
@@ -263,9 +253,11 @@ grub_xen_boot (void)
|
||||
if (err)
|
||||
return err;
|
||||
xen_state.state.start_info = xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
- nst = get_virtual_current_address (ch);
|
||||
+ xen_state.virt_start_info = get_virtual_current_address (ch);
|
||||
xen_state.max_addr =
|
||||
ALIGN_UP (xen_state.max_addr + sizeof (xen_state.next_start), PAGE_SIZE);
|
||||
+ xen_state.console_pfn = xen_state.max_addr >> PAGE_SHIFT;
|
||||
+ xen_state.max_addr += 2 * PAGE_SIZE;
|
||||
|
||||
xen_state.next_start.nr_pages = grub_xen_start_page_addr->nr_pages;
|
||||
grub_memcpy (xen_state.next_start.magic, grub_xen_start_page_addr->magic,
|
||||
@@ -275,10 +267,28 @@ grub_xen_boot (void)
|
||||
xen_state.next_start.console.domU = grub_xen_start_page_addr->console.domU;
|
||||
xen_state.next_start.shared_info = grub_xen_start_page_addr->shared_info;
|
||||
|
||||
- err = set_mfns (xen_state.max_addr >> PAGE_SHIFT);
|
||||
+ return GRUB_ERR_NONE;
|
||||
+}
|
||||
+
|
||||
+static grub_err_t
|
||||
+grub_xen_boot (void)
|
||||
+{
|
||||
+ grub_relocator_chunk_t ch;
|
||||
+ grub_err_t err;
|
||||
+ grub_uint64_t nr_info_pages;
|
||||
+ grub_uint64_t nr_pages, nr_pt_pages, nr_need_pages;
|
||||
+ struct gnttab_set_version gnttab_setver;
|
||||
+ grub_size_t i;
|
||||
+
|
||||
+ if (grub_xen_n_allocated_shared_pages)
|
||||
+ return grub_error (GRUB_ERR_BUG, "active grants");
|
||||
+
|
||||
+ err = grub_xen_p2m_alloc ();
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ err = grub_xen_special_alloc ();
|
||||
if (err)
|
||||
return err;
|
||||
- xen_state.max_addr += 2 * PAGE_SIZE;
|
||||
|
||||
xen_state.next_start.pt_base =
|
||||
xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
@@ -309,6 +319,10 @@ grub_xen_boot (void)
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
+ err = set_mfns (xen_state.console_pfn);
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+
|
||||
generate_page_table (get_virtual_current_address (ch),
|
||||
xen_state.max_addr >> PAGE_SHIFT, nr_pages,
|
||||
xen_state.xen_inf.virt_base, xen_state.virt_mfn_list);
|
||||
@@ -321,7 +335,7 @@ grub_xen_boot (void)
|
||||
xen_state.next_start.nr_pt_frames = nr_pt_pages;
|
||||
xen_state.state.paging_size = nr_pt_pages;
|
||||
|
||||
- *nst = xen_state.next_start;
|
||||
+ *xen_state.virt_start_info = xen_state.next_start;
|
||||
|
||||
grub_memset (&gnttab_setver, 0, sizeof (gnttab_setver));
|
||||
|
||||
--
|
||||
2.6.6
|
||||
|
176
0008-xen-factor-out-allocation-of-page-tables-into-separa.patch
Normal file
176
0008-xen-factor-out-allocation-of-page-tables-into-separa.patch
Normal file
@ -0,0 +1,176 @@
|
||||
From e5cce22a4448d84c50ef30acdd1990ecee16f2c2 Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:13 +0100
|
||||
Subject: [PATCH 08/11] xen: factor out allocation of page tables into separate
|
||||
function
|
||||
|
||||
Do the allocation of page tables in a separate function. This will
|
||||
allow to do the allocation at different times of the boot preparations
|
||||
depending on the features the kernel is supporting.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
grub-core/loader/i386/xen.c | 85 ++++++++++++++++++++++++++++-----------------
|
||||
1 file changed, 53 insertions(+), 32 deletions(-)
|
||||
|
||||
diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
|
||||
index a80c0f8..2e12763 100644
|
||||
--- a/grub-core/loader/i386/xen.c
|
||||
+++ b/grub-core/loader/i386/xen.c
|
||||
@@ -51,6 +51,9 @@ struct xen_loader_state {
|
||||
struct start_info *virt_start_info;
|
||||
grub_xen_mfn_t console_pfn;
|
||||
grub_uint64_t max_addr;
|
||||
+ grub_uint64_t *virt_pgtable;
|
||||
+ grub_uint64_t pgtbl_start;
|
||||
+ grub_uint64_t pgtbl_end;
|
||||
struct xen_multiboot_mod_list *module_info_page;
|
||||
grub_uint64_t modules_target_start;
|
||||
grub_size_t n_modules;
|
||||
@@ -110,17 +113,17 @@ get_pgtable_size (grub_uint64_t total_pages, grub_uint64_t virt_base)
|
||||
|
||||
static void
|
||||
generate_page_table (grub_uint64_t *where, grub_uint64_t paging_start,
|
||||
- grub_uint64_t total_pages, grub_uint64_t virt_base,
|
||||
- grub_xen_mfn_t *mfn_list)
|
||||
+ grub_uint64_t paging_end, grub_uint64_t total_pages,
|
||||
+ grub_uint64_t virt_base, grub_xen_mfn_t *mfn_list)
|
||||
{
|
||||
if (!virt_base)
|
||||
- total_pages++;
|
||||
+ paging_end++;
|
||||
|
||||
grub_uint64_t lx[NUMBER_OF_LEVELS], lxs[NUMBER_OF_LEVELS];
|
||||
grub_uint64_t nlx, nls, sz = 0;
|
||||
int l;
|
||||
|
||||
- nlx = total_pages;
|
||||
+ nlx = paging_end;
|
||||
nls = virt_base >> PAGE_SHIFT;
|
||||
for (l = 0; l < NUMBER_OF_LEVELS; l++)
|
||||
{
|
||||
@@ -164,7 +167,7 @@ generate_page_table (grub_uint64_t *where, grub_uint64_t paging_start,
|
||||
if (pr)
|
||||
pg += POINTERS_PER_PAGE;
|
||||
|
||||
- for (j = 0; j < total_pages; j++)
|
||||
+ for (j = 0; j < paging_end; j++)
|
||||
{
|
||||
if (j >= paging_start && j < lp)
|
||||
pg[j + lxs[0]] = page2offset (mfn_list[j]) | 5;
|
||||
@@ -271,24 +274,12 @@ grub_xen_special_alloc (void)
|
||||
}
|
||||
|
||||
static grub_err_t
|
||||
-grub_xen_boot (void)
|
||||
+grub_xen_pt_alloc (void)
|
||||
{
|
||||
grub_relocator_chunk_t ch;
|
||||
grub_err_t err;
|
||||
grub_uint64_t nr_info_pages;
|
||||
grub_uint64_t nr_pages, nr_pt_pages, nr_need_pages;
|
||||
- struct gnttab_set_version gnttab_setver;
|
||||
- grub_size_t i;
|
||||
-
|
||||
- if (grub_xen_n_allocated_shared_pages)
|
||||
- return grub_error (GRUB_ERR_BUG, "active grants");
|
||||
-
|
||||
- err = grub_xen_p2m_alloc ();
|
||||
- if (err)
|
||||
- return err;
|
||||
- err = grub_xen_special_alloc ();
|
||||
- if (err)
|
||||
- return err;
|
||||
|
||||
xen_state.next_start.pt_base =
|
||||
xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
@@ -309,32 +300,62 @@ grub_xen_boot (void)
|
||||
nr_pages = nr_need_pages;
|
||||
}
|
||||
|
||||
- grub_dprintf ("xen", "bootstrap domain %llx+%llx\n",
|
||||
- (unsigned long long) xen_state.xen_inf.virt_base,
|
||||
- (unsigned long long) page2offset (nr_pages));
|
||||
-
|
||||
err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
xen_state.max_addr,
|
||||
page2offset (nr_pt_pages));
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
+ xen_state.virt_pgtable = get_virtual_current_address (ch);
|
||||
+ xen_state.pgtbl_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
+ xen_state.max_addr += page2offset (nr_pt_pages);
|
||||
+ xen_state.state.stack =
|
||||
+ xen_state.max_addr + STACK_SIZE + xen_state.xen_inf.virt_base;
|
||||
+ xen_state.state.paging_size = nr_pt_pages;
|
||||
+ xen_state.next_start.nr_pt_frames = nr_pt_pages;
|
||||
+ xen_state.max_addr = page2offset (nr_pages);
|
||||
+ xen_state.pgtbl_end = nr_pages;
|
||||
+
|
||||
+ return GRUB_ERR_NONE;
|
||||
+}
|
||||
+
|
||||
+static grub_err_t
|
||||
+grub_xen_boot (void)
|
||||
+{
|
||||
+ grub_err_t err;
|
||||
+ grub_uint64_t nr_pages;
|
||||
+ struct gnttab_set_version gnttab_setver;
|
||||
+ grub_size_t i;
|
||||
+
|
||||
+ if (grub_xen_n_allocated_shared_pages)
|
||||
+ return grub_error (GRUB_ERR_BUG, "active grants");
|
||||
+
|
||||
+ err = grub_xen_p2m_alloc ();
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ err = grub_xen_special_alloc ();
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ err = grub_xen_pt_alloc ();
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+
|
||||
err = set_mfns (xen_state.console_pfn);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
- generate_page_table (get_virtual_current_address (ch),
|
||||
- xen_state.max_addr >> PAGE_SHIFT, nr_pages,
|
||||
+ nr_pages = xen_state.max_addr >> PAGE_SHIFT;
|
||||
+
|
||||
+ grub_dprintf ("xen", "bootstrap domain %llx+%llx\n",
|
||||
+ (unsigned long long) xen_state.xen_inf.virt_base,
|
||||
+ (unsigned long long) page2offset (nr_pages));
|
||||
+
|
||||
+ generate_page_table (xen_state.virt_pgtable, xen_state.pgtbl_start,
|
||||
+ xen_state.pgtbl_end, nr_pages,
|
||||
xen_state.xen_inf.virt_base, xen_state.virt_mfn_list);
|
||||
|
||||
- xen_state.max_addr += page2offset (nr_pt_pages);
|
||||
- xen_state.state.stack =
|
||||
- xen_state.max_addr + STACK_SIZE + xen_state.xen_inf.virt_base;
|
||||
xen_state.state.entry_point = xen_state.xen_inf.entry_point;
|
||||
|
||||
- xen_state.next_start.nr_pt_frames = nr_pt_pages;
|
||||
- xen_state.state.paging_size = nr_pt_pages;
|
||||
-
|
||||
*xen_state.virt_start_info = xen_state.next_start;
|
||||
|
||||
grub_memset (&gnttab_setver, 0, sizeof (gnttab_setver));
|
||||
@@ -348,8 +369,8 @@ grub_xen_boot (void)
|
||||
return grub_relocator_xen_boot (xen_state.relocator, xen_state.state, nr_pages,
|
||||
xen_state.xen_inf.virt_base <
|
||||
PAGE_SIZE ? page2offset (nr_pages) : 0,
|
||||
- nr_pages - 1,
|
||||
- page2offset (nr_pages - 1) +
|
||||
+ xen_state.pgtbl_end - 1,
|
||||
+ page2offset (xen_state.pgtbl_end - 1) +
|
||||
xen_state.xen_inf.virt_base);
|
||||
}
|
||||
|
||||
--
|
||||
2.6.6
|
||||
|
178
0009-xen-add-capability-to-load-initrd-outside-of-initial.patch
Normal file
178
0009-xen-add-capability-to-load-initrd-outside-of-initial.patch
Normal file
@ -0,0 +1,178 @@
|
||||
From 9c7798d3bed807f29a7056bac5bd8c4b0f33ca34 Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:14 +0100
|
||||
Subject: [PATCH 09/11] xen: add capability to load initrd outside of initial
|
||||
mapping
|
||||
|
||||
Modern pvops linux kernels support an initrd not covered by the initial
|
||||
mapping. This capability is flagged by an elf-note.
|
||||
|
||||
In case the elf-note is set by the kernel don't place the initrd into
|
||||
the initial mapping. This will allow to load larger initrds and/or
|
||||
support domains with larger memory, as the initial mapping is limited
|
||||
to 2GB and it is containing the p2m list.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
grub-core/loader/i386/xen.c | 60 +++++++++++++++++++++++++++++++-------
|
||||
grub-core/loader/i386/xen_fileXX.c | 3 ++
|
||||
include/grub/xen_file.h | 1 +
|
||||
3 files changed, 53 insertions(+), 11 deletions(-)
|
||||
|
||||
diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
|
||||
index 2e12763..9639ca1 100644
|
||||
--- a/grub-core/loader/i386/xen.c
|
||||
+++ b/grub-core/loader/i386/xen.c
|
||||
@@ -228,6 +228,9 @@ grub_xen_p2m_alloc (void)
|
||||
grub_size_t p2msize;
|
||||
grub_err_t err;
|
||||
|
||||
+ if (xen_state.virt_mfn_list)
|
||||
+ return GRUB_ERR_NONE;
|
||||
+
|
||||
xen_state.state.mfn_list = xen_state.max_addr;
|
||||
xen_state.next_start.mfn_list =
|
||||
xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
@@ -250,6 +253,9 @@ grub_xen_special_alloc (void)
|
||||
grub_relocator_chunk_t ch;
|
||||
grub_err_t err;
|
||||
|
||||
+ if (xen_state.virt_start_info)
|
||||
+ return GRUB_ERR_NONE;
|
||||
+
|
||||
err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
xen_state.max_addr,
|
||||
sizeof (xen_state.next_start));
|
||||
@@ -281,6 +287,9 @@ grub_xen_pt_alloc (void)
|
||||
grub_uint64_t nr_info_pages;
|
||||
grub_uint64_t nr_pages, nr_pt_pages, nr_need_pages;
|
||||
|
||||
+ if (xen_state.virt_pgtable)
|
||||
+ return GRUB_ERR_NONE;
|
||||
+
|
||||
xen_state.next_start.pt_base =
|
||||
xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
xen_state.state.paging_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
@@ -319,16 +328,11 @@ grub_xen_pt_alloc (void)
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
|
||||
+/* Allocate all not yet allocated areas mapped by initial page tables. */
|
||||
static grub_err_t
|
||||
-grub_xen_boot (void)
|
||||
+grub_xen_alloc_boot_data (void)
|
||||
{
|
||||
grub_err_t err;
|
||||
- grub_uint64_t nr_pages;
|
||||
- struct gnttab_set_version gnttab_setver;
|
||||
- grub_size_t i;
|
||||
-
|
||||
- if (grub_xen_n_allocated_shared_pages)
|
||||
- return grub_error (GRUB_ERR_BUG, "active grants");
|
||||
|
||||
err = grub_xen_p2m_alloc ();
|
||||
if (err)
|
||||
@@ -340,6 +344,24 @@ grub_xen_boot (void)
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
+ return GRUB_ERR_NONE;
|
||||
+}
|
||||
+
|
||||
+static grub_err_t
|
||||
+grub_xen_boot (void)
|
||||
+{
|
||||
+ grub_err_t err;
|
||||
+ grub_uint64_t nr_pages;
|
||||
+ struct gnttab_set_version gnttab_setver;
|
||||
+ grub_size_t i;
|
||||
+
|
||||
+ if (grub_xen_n_allocated_shared_pages)
|
||||
+ return grub_error (GRUB_ERR_BUG, "active grants");
|
||||
+
|
||||
+ err = grub_xen_alloc_boot_data ();
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+
|
||||
err = set_mfns (xen_state.console_pfn);
|
||||
if (err)
|
||||
return err;
|
||||
@@ -610,6 +632,13 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
|
||||
goto fail;
|
||||
}
|
||||
|
||||
+ if (xen_state.xen_inf.unmapped_initrd)
|
||||
+ {
|
||||
+ err = grub_xen_alloc_boot_data ();
|
||||
+ if (err)
|
||||
+ goto fail;
|
||||
+ }
|
||||
+
|
||||
if (grub_initrd_init (argc, argv, &initrd_ctx))
|
||||
goto fail;
|
||||
|
||||
@@ -627,14 +656,22 @@ grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
|
||||
goto fail;
|
||||
}
|
||||
|
||||
- xen_state.next_start.mod_start =
|
||||
- xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
xen_state.next_start.mod_len = size;
|
||||
|
||||
- xen_state.max_addr = ALIGN_UP (xen_state.max_addr + size, PAGE_SIZE);
|
||||
+ if (xen_state.xen_inf.unmapped_initrd)
|
||||
+ {
|
||||
+ xen_state.next_start.flags |= SIF_MOD_START_PFN;
|
||||
+ xen_state.next_start.mod_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
+ }
|
||||
+ else
|
||||
+ xen_state.next_start.mod_start =
|
||||
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
|
||||
grub_dprintf ("xen", "Initrd, addr=0x%x, size=0x%x\n",
|
||||
- (unsigned) xen_state.next_start.mod_start, (unsigned) size);
|
||||
+ (unsigned) (xen_state.max_addr + xen_state.xen_inf.virt_base),
|
||||
+ (unsigned) size);
|
||||
+
|
||||
+ xen_state.max_addr = ALIGN_UP (xen_state.max_addr + size, PAGE_SIZE);
|
||||
|
||||
fail:
|
||||
grub_initrd_close (&initrd_ctx);
|
||||
@@ -686,6 +723,7 @@ grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
|
||||
|
||||
if (!xen_state.module_info_page)
|
||||
{
|
||||
+ xen_state.xen_inf.unmapped_initrd = 0;
|
||||
xen_state.n_modules = 0;
|
||||
xen_state.max_addr = ALIGN_UP (xen_state.max_addr, PAGE_SIZE);
|
||||
xen_state.modules_target_start = xen_state.max_addr;
|
||||
diff --git a/grub-core/loader/i386/xen_fileXX.c b/grub-core/loader/i386/xen_fileXX.c
|
||||
index 03215ca..8751174 100644
|
||||
--- a/grub-core/loader/i386/xen_fileXX.c
|
||||
+++ b/grub-core/loader/i386/xen_fileXX.c
|
||||
@@ -261,6 +261,9 @@ parse_note (grub_elf_t elf, struct grub_xen_file_info *xi,
|
||||
descsz == 2 ? 2 : 3) == 0)
|
||||
xi->arch = GRUB_XEN_FILE_I386;
|
||||
break;
|
||||
+ case XEN_ELFNOTE_MOD_START_PFN:
|
||||
+ xi->unmapped_initrd = !!grub_le_to_cpu32(*(grub_uint32_t *) desc);
|
||||
+ break;
|
||||
default:
|
||||
grub_dprintf ("xen", "unknown note type %d\n", nh->n_type);
|
||||
break;
|
||||
diff --git a/include/grub/xen_file.h b/include/grub/xen_file.h
|
||||
index 4b2ccba..ed749fa 100644
|
||||
--- a/include/grub/xen_file.h
|
||||
+++ b/include/grub/xen_file.h
|
||||
@@ -36,6 +36,7 @@ struct grub_xen_file_info
|
||||
int has_note;
|
||||
int has_xen_guest;
|
||||
int extended_cr3;
|
||||
+ int unmapped_initrd;
|
||||
enum
|
||||
{
|
||||
GRUB_XEN_FILE_I386 = 1,
|
||||
--
|
||||
2.6.6
|
||||
|
951
0010-xen-modify-page-table-construction.patch
Normal file
951
0010-xen-modify-page-table-construction.patch
Normal file
@ -0,0 +1,951 @@
|
||||
From de018561ca5b1d5fd0d187be0d03d93da3ef4501 Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:15 +0100
|
||||
Subject: [PATCH 10/11] xen: modify page table construction
|
||||
|
||||
Modify the page table construction to allow multiple virtual regions
|
||||
to be mapped. This is done as preparation for removing the p2m list
|
||||
from the initial kernel mapping in order to support huge pv domains.
|
||||
|
||||
This allows a cleaner approach for mapping the relocator page by
|
||||
using this capability.
|
||||
|
||||
The interface to the assembler level of the relocator has to be changed
|
||||
in order to be able to process multiple page table areas.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
grub-core/lib/i386/xen/relocator.S | 89 ++++++----
|
||||
grub-core/lib/x86_64/xen/relocator.S | 136 ++++++---------
|
||||
grub-core/lib/xen/relocator.c | 28 ++-
|
||||
grub-core/loader/i386/xen.c | 323 +++++++++++++++++++++++------------
|
||||
include/grub/i386/memory.h | 7 +
|
||||
include/grub/xen/relocator.h | 6 +-
|
||||
6 files changed, 357 insertions(+), 232 deletions(-)
|
||||
|
||||
diff --git a/grub-core/lib/i386/xen/relocator.S b/grub-core/lib/i386/xen/relocator.S
|
||||
index 694a54c..f1c729e 100644
|
||||
--- a/grub-core/lib/i386/xen/relocator.S
|
||||
+++ b/grub-core/lib/i386/xen/relocator.S
|
||||
@@ -16,6 +16,8 @@
|
||||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
+#include <grub/i386/memory.h>
|
||||
+#include <grub/i386/types.h>
|
||||
#include <grub/symbol.h>
|
||||
#include <grub/xen.h>
|
||||
|
||||
@@ -23,78 +25,86 @@
|
||||
|
||||
VARIABLE(grub_relocator_xen_remap_start)
|
||||
LOCAL(base):
|
||||
- /* mov imm32, %ebx */
|
||||
+ /* Remap the remapper to it's new address. */
|
||||
+ /* mov imm32, %ebx - %ebx: new virtual address of remapper */
|
||||
.byte 0xbb
|
||||
VARIABLE(grub_relocator_xen_remapper_virt)
|
||||
.long 0
|
||||
|
||||
- /* mov imm32, %ecx */
|
||||
+ /* mov imm32, %ecx - %ecx: low part of page table entry */
|
||||
.byte 0xb9
|
||||
VARIABLE(grub_relocator_xen_remapper_map)
|
||||
.long 0
|
||||
|
||||
- /* mov imm32, %edx */
|
||||
+ /* mov imm32, %edx - %edx: high part of page table entry */
|
||||
.byte 0xba
|
||||
VARIABLE(grub_relocator_xen_remapper_map_high)
|
||||
.long 0
|
||||
|
||||
- movl %ebx, %ebp
|
||||
+ movl %ebx, %ebp /* %ebx is clobbered by hypercall */
|
||||
|
||||
- movl $2, %esi
|
||||
+ movl $UVMF_INVLPG, %esi /* esi: flags (inv. single entry) */
|
||||
movl $__HYPERVISOR_update_va_mapping, %eax
|
||||
int $0x82
|
||||
|
||||
movl %ebp, %ebx
|
||||
addl $(LOCAL(cont) - LOCAL(base)), %ebx
|
||||
|
||||
- jmp *%ebx
|
||||
+ jmp *%ebx /* Continue with new virtual address */
|
||||
|
||||
LOCAL(cont):
|
||||
- xorl %eax, %eax
|
||||
- movl %eax, %ebp
|
||||
+ /* Modify mappings of new page tables to be read-only. */
|
||||
+ /* mov imm32, %eax */
|
||||
+ .byte 0xb8
|
||||
+VARIABLE(grub_relocator_xen_paging_areas_addr)
|
||||
+ .long 0
|
||||
+ movl %eax, %ebx
|
||||
1:
|
||||
-
|
||||
+ movl 0(%ebx), %ebp /* Get start pfn of the current area */
|
||||
+ movl GRUB_TARGET_SIZEOF_LONG(%ebx), %ecx /* Get # of pg tables */
|
||||
+ testl %ecx, %ecx /* 0 -> last area reached */
|
||||
+ jz 3f
|
||||
+ addl $(2 * GRUB_TARGET_SIZEOF_LONG), %ebx
|
||||
+ movl %ebx, %esp /* Save current area pointer */
|
||||
+
|
||||
+2:
|
||||
+ movl %ecx, %edi
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
VARIABLE(grub_relocator_xen_mfn_list)
|
||||
.long 0
|
||||
- movl %eax, %edi
|
||||
- movl %ebp, %eax
|
||||
- movl 0(%edi, %eax, 4), %ecx
|
||||
-
|
||||
- /* mov imm32, %ebx */
|
||||
- .byte 0xbb
|
||||
-VARIABLE(grub_relocator_xen_paging_start)
|
||||
- .long 0
|
||||
- shll $12, %eax
|
||||
- addl %eax, %ebx
|
||||
+ movl 0(%eax, %ebp, 4), %ecx /* mfn */
|
||||
+ movl %ebp, %ebx
|
||||
+ shll $PAGE_SHIFT, %ebx /* virtual address (1:1 mapping) */
|
||||
movl %ecx, %edx
|
||||
- shll $12, %ecx
|
||||
- shrl $20, %edx
|
||||
- orl $5, %ecx
|
||||
- movl $2, %esi
|
||||
+ shll $PAGE_SHIFT, %ecx /* prepare pte low part */
|
||||
+ shrl $(32 - PAGE_SHIFT), %edx /* pte high part */
|
||||
+ orl $(GRUB_PAGE_PRESENT | GRUB_PAGE_USER), %ecx /* pte low */
|
||||
+ movl $UVMF_INVLPG, %esi
|
||||
movl $__HYPERVISOR_update_va_mapping, %eax
|
||||
- int $0x82
|
||||
+ int $0x82 /* parameters: eax, ebx, ecx, edx, esi */
|
||||
|
||||
- incl %ebp
|
||||
- /* mov imm32, %ecx */
|
||||
- .byte 0xb9
|
||||
-VARIABLE(grub_relocator_xen_paging_size)
|
||||
- .long 0
|
||||
- cmpl %ebp, %ecx
|
||||
+ incl %ebp /* next pfn */
|
||||
+ movl %edi, %ecx
|
||||
+
|
||||
+ loop 2b
|
||||
|
||||
- ja 1b
|
||||
+ mov %esp, %ebx /* restore area poniter */
|
||||
+ jmp 1b
|
||||
|
||||
+3:
|
||||
+ /* Switch page tables: pin new L3 pt, load cr3, unpin old L3. */
|
||||
/* mov imm32, %ebx */
|
||||
.byte 0xbb
|
||||
VARIABLE(grub_relocator_xen_mmu_op_addr)
|
||||
.long 0
|
||||
- movl $3, %ecx
|
||||
- movl $0, %edx
|
||||
- movl $0x7FF0, %esi
|
||||
+ movl $3, %ecx /* 3 mmu ops */
|
||||
+ movl $0, %edx /* pdone (not used) */
|
||||
+ movl $DOMID_SELF, %esi
|
||||
movl $__HYPERVISOR_mmuext_op, %eax
|
||||
int $0x82
|
||||
|
||||
+ /* Continue in virtual kernel mapping. */
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
VARIABLE(grub_relocator_xen_remap_continue)
|
||||
@@ -102,6 +112,9 @@ VARIABLE(grub_relocator_xen_remap_continue)
|
||||
|
||||
jmp *%eax
|
||||
|
||||
+VARIABLE(grub_relocator_xen_paging_areas)
|
||||
+ .long 0, 0, 0, 0, 0, 0, 0, 0
|
||||
+
|
||||
VARIABLE(grub_relocator_xen_mmu_op)
|
||||
.space 256
|
||||
|
||||
@@ -109,6 +122,7 @@ VARIABLE(grub_relocator_xen_remap_end)
|
||||
|
||||
|
||||
VARIABLE(grub_relocator_xen_start)
|
||||
+ /* Unmap old remapper area. */
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
VARIABLE(grub_relocator_xen_remapper_virt2)
|
||||
@@ -116,14 +130,14 @@ VARIABLE(grub_relocator_xen_remapper_virt2)
|
||||
|
||||
movl %eax, %edi
|
||||
|
||||
- xorl %ecx, %ecx
|
||||
+ xorl %ecx, %ecx /* Invalid pte */
|
||||
xorl %edx, %edx
|
||||
|
||||
- movl $2, %esi
|
||||
+ movl $UVMF_INVLPG, %esi
|
||||
movl $__HYPERVISOR_update_va_mapping, %eax
|
||||
int $0x82
|
||||
|
||||
-
|
||||
+ /* Prepare registers for starting kernel. */
|
||||
/* mov imm32, %eax */
|
||||
.byte 0xb8
|
||||
VARIABLE(grub_relocator_xen_stack)
|
||||
@@ -145,6 +159,7 @@ VARIABLE(grub_relocator_xen_start_info)
|
||||
VARIABLE(grub_relocator_xen_entry_point)
|
||||
.long 0
|
||||
|
||||
+ /* Now start the new kernel. */
|
||||
jmp *%eax
|
||||
|
||||
VARIABLE(grub_relocator_xen_end)
|
||||
diff --git a/grub-core/lib/x86_64/xen/relocator.S b/grub-core/lib/x86_64/xen/relocator.S
|
||||
index 92e9e72..f5364ed 100644
|
||||
--- a/grub-core/lib/x86_64/xen/relocator.S
|
||||
+++ b/grub-core/lib/x86_64/xen/relocator.S
|
||||
@@ -16,95 +16,85 @@
|
||||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
+#include <grub/x86_64/memory.h>
|
||||
+#include <grub/x86_64/types.h>
|
||||
#include <grub/symbol.h>
|
||||
#include <grub/xen.h>
|
||||
|
||||
+/* Macro to load an imm64 value stored by the C-part into %rax: */
|
||||
+#define MOV_IMM64_RAX(var) .byte 0x48, 0xb8; VARIABLE(var); .quad 0
|
||||
+
|
||||
.p2align 4 /* force 16-byte alignment */
|
||||
|
||||
VARIABLE(grub_relocator_xen_remap_start)
|
||||
LOCAL(base):
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_remapper_virt)
|
||||
- .quad 0
|
||||
+ /* Remap the remapper to it's new address. */
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_remapper_virt)
|
||||
|
||||
- movq %rax, %rdi
|
||||
- movq %rax, %rbx
|
||||
+ movq %rax, %rdi /* %rdi: new virtual address of remapper */
|
||||
+ movq %rax, %rbx /* Remember new virtual address */
|
||||
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_remapper_map)
|
||||
- .quad 0
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_remapper_map)
|
||||
|
||||
- movq %rax, %rsi
|
||||
+ movq %rax, %rsi /* %rsi: page table entry */
|
||||
|
||||
- movq $2, %rdx
|
||||
+ movq $UVMF_INVLPG, %rdx /* %rdx: flags (inv. single entry) */
|
||||
movq $__HYPERVISOR_update_va_mapping, %rax
|
||||
- syscall
|
||||
+ syscall /* Do the remap operation */
|
||||
|
||||
addq $(LOCAL(cont) - LOCAL(base)), %rbx
|
||||
|
||||
- jmp *%rbx
|
||||
+ jmp *%rbx /* Continue with new virtual address */
|
||||
|
||||
LOCAL(cont):
|
||||
-
|
||||
- /* mov imm64, %rcx */
|
||||
- .byte 0x48
|
||||
- .byte 0xb9
|
||||
-VARIABLE(grub_relocator_xen_paging_size)
|
||||
- .quad 0
|
||||
-
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_paging_start)
|
||||
- .quad 0
|
||||
-
|
||||
- movq %rax, %r12
|
||||
-
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_mfn_list)
|
||||
- .quad 0
|
||||
+ /* Modify mappings of new page tables to be read-only. */
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_mfn_list)
|
||||
+
|
||||
+ movq %rax, %rbx /* %rbx is the base of the p2m list */
|
||||
+ leaq EXT_C(grub_relocator_xen_paging_areas) (%rip), %r8
|
||||
|
||||
- movq %rax, %rsi
|
||||
1:
|
||||
+ movq 0(%r8), %r12 /* Get start pfn of the current area */
|
||||
+ movq GRUB_TARGET_SIZEOF_LONG(%r8), %rcx /* Get # of pg tables */
|
||||
+ testq %rcx, %rcx /* 0 -> last area reached */
|
||||
+ jz 3f
|
||||
+2:
|
||||
movq %r12, %rdi
|
||||
- movq %rsi, %rbx
|
||||
- movq 0(%rsi), %rsi
|
||||
- shlq $12, %rsi
|
||||
- orq $5, %rsi
|
||||
- movq $2, %rdx
|
||||
- movq %rcx, %r9
|
||||
+ shlq $PAGE_SHIFT, %rdi /* virtual address (1:1 mapping) */
|
||||
+ movq (%rbx, %r12, 8), %rsi /* mfn */
|
||||
+ shlq $PAGE_SHIFT, %rsi
|
||||
+ orq $(GRUB_PAGE_PRESENT | GRUB_PAGE_USER), %rsi /* Build pte */
|
||||
+ movq $UVMF_INVLPG, %rdx
|
||||
+ movq %rcx, %r9 /* %rcx clobbered by hypercall */
|
||||
movq $__HYPERVISOR_update_va_mapping, %rax
|
||||
syscall
|
||||
|
||||
movq %r9, %rcx
|
||||
- addq $8, %rbx
|
||||
- addq $4096, %r12
|
||||
- movq %rbx, %rsi
|
||||
+ incq %r12 /* next pfn */
|
||||
+
|
||||
+ loop 2b
|
||||
|
||||
- loop 1b
|
||||
+ addq $(2 * GRUB_TARGET_SIZEOF_LONG), %r8 /* next pg table area */
|
||||
+ jmp 1b
|
||||
|
||||
- leaq LOCAL(mmu_op) (%rip), %rdi
|
||||
- movq $3, %rsi
|
||||
- movq $0, %rdx
|
||||
- movq $0x7FF0, %r10
|
||||
+3:
|
||||
+ /* Switch page tables: pin new L4 pt, load cr3, unpin old L4. */
|
||||
+ leaq EXT_C(grub_relocator_xen_mmu_op) (%rip), %rdi
|
||||
+ movq $3, %rsi /* 3 mmu ops */
|
||||
+ movq $0, %rdx /* pdone (not used) */
|
||||
+ movq $DOMID_SELF, %r10
|
||||
movq $__HYPERVISOR_mmuext_op, %rax
|
||||
syscall
|
||||
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_remap_continue)
|
||||
- .quad 0
|
||||
+ /* Continue in virtual kernel mapping. */
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_remap_continue)
|
||||
|
||||
jmp *%rax
|
||||
|
||||
-LOCAL(mmu_op):
|
||||
+VARIABLE(grub_relocator_xen_paging_areas)
|
||||
+ /* array of start, size pairs, size 0 is end marker */
|
||||
+ .quad 0, 0, 0, 0, 0, 0, 0, 0
|
||||
+
|
||||
VARIABLE(grub_relocator_xen_mmu_op)
|
||||
.space 256
|
||||
|
||||
@@ -112,46 +102,32 @@ VARIABLE(grub_relocator_xen_remap_end)
|
||||
|
||||
|
||||
VARIABLE(grub_relocator_xen_start)
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_remapper_virt2)
|
||||
- .quad 0
|
||||
+ /* Unmap old remapper area. */
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_remapper_virt2)
|
||||
|
||||
movq %rax, %rdi
|
||||
|
||||
- xorq %rax, %rax
|
||||
+ xorq %rax, %rax /* Invalid pte */
|
||||
movq %rax, %rsi
|
||||
|
||||
- movq $2, %rdx
|
||||
+ movq $UVMF_INVLPG, %rdx
|
||||
movq $__HYPERVISOR_update_va_mapping, %rax
|
||||
syscall
|
||||
|
||||
-
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_stack)
|
||||
- .quad 0
|
||||
+ /* Prepare registers for starting kernel. */
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_stack)
|
||||
|
||||
movq %rax, %rsp
|
||||
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_start_info)
|
||||
- .quad 0
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_start_info)
|
||||
|
||||
movq %rax, %rsi
|
||||
|
||||
cld
|
||||
|
||||
- /* mov imm64, %rax */
|
||||
- .byte 0x48
|
||||
- .byte 0xb8
|
||||
-VARIABLE(grub_relocator_xen_entry_point)
|
||||
- .quad 0
|
||||
+ MOV_IMM64_RAX(grub_relocator_xen_entry_point)
|
||||
|
||||
+ /* Now start the new kernel. */
|
||||
jmp *%rax
|
||||
|
||||
VARIABLE(grub_relocator_xen_end)
|
||||
diff --git a/grub-core/lib/xen/relocator.c b/grub-core/lib/xen/relocator.c
|
||||
index 8f427d3..4d0cbca 100644
|
||||
--- a/grub-core/lib/xen/relocator.c
|
||||
+++ b/grub-core/lib/xen/relocator.c
|
||||
@@ -29,6 +29,11 @@
|
||||
|
||||
typedef grub_addr_t grub_xen_reg_t;
|
||||
|
||||
+struct grub_relocator_xen_paging_area {
|
||||
+ grub_xen_reg_t start;
|
||||
+ grub_xen_reg_t size;
|
||||
+} GRUB_PACKED;
|
||||
+
|
||||
extern grub_uint8_t grub_relocator_xen_start;
|
||||
extern grub_uint8_t grub_relocator_xen_end;
|
||||
extern grub_uint8_t grub_relocator_xen_remap_start;
|
||||
@@ -36,15 +41,16 @@ extern grub_uint8_t grub_relocator_xen_remap_end;
|
||||
extern grub_xen_reg_t grub_relocator_xen_stack;
|
||||
extern grub_xen_reg_t grub_relocator_xen_start_info;
|
||||
extern grub_xen_reg_t grub_relocator_xen_entry_point;
|
||||
-extern grub_xen_reg_t grub_relocator_xen_paging_start;
|
||||
-extern grub_xen_reg_t grub_relocator_xen_paging_size;
|
||||
extern grub_xen_reg_t grub_relocator_xen_remapper_virt;
|
||||
extern grub_xen_reg_t grub_relocator_xen_remapper_virt2;
|
||||
extern grub_xen_reg_t grub_relocator_xen_remapper_map;
|
||||
extern grub_xen_reg_t grub_relocator_xen_mfn_list;
|
||||
+extern struct grub_relocator_xen_paging_area
|
||||
+ grub_relocator_xen_paging_areas[XEN_MAX_MAPPINGS];
|
||||
extern grub_xen_reg_t grub_relocator_xen_remap_continue;
|
||||
#ifdef __i386__
|
||||
extern grub_xen_reg_t grub_relocator_xen_mmu_op_addr;
|
||||
+extern grub_xen_reg_t grub_relocator_xen_paging_areas_addr;
|
||||
extern grub_xen_reg_t grub_relocator_xen_remapper_map_high;
|
||||
#endif
|
||||
extern mmuext_op_t grub_relocator_xen_mmu_op[3];
|
||||
@@ -61,6 +67,7 @@ grub_relocator_xen_boot (struct grub_relocator *rel,
|
||||
{
|
||||
grub_err_t err;
|
||||
void *relst;
|
||||
+ int i;
|
||||
grub_relocator_chunk_t ch, ch_tramp;
|
||||
grub_xen_mfn_t *mfn_list =
|
||||
(grub_xen_mfn_t *) grub_xen_start_page_addr->mfn_list;
|
||||
@@ -77,8 +84,11 @@ grub_relocator_xen_boot (struct grub_relocator *rel,
|
||||
grub_relocator_xen_stack = state.stack;
|
||||
grub_relocator_xen_start_info = state.start_info;
|
||||
grub_relocator_xen_entry_point = state.entry_point;
|
||||
- grub_relocator_xen_paging_start = state.paging_start << 12;
|
||||
- grub_relocator_xen_paging_size = state.paging_size;
|
||||
+ for (i = 0; i < XEN_MAX_MAPPINGS; i++)
|
||||
+ {
|
||||
+ grub_relocator_xen_paging_areas[i].start = state.paging_start[i];
|
||||
+ grub_relocator_xen_paging_areas[i].size = state.paging_size[i];
|
||||
+ }
|
||||
grub_relocator_xen_remapper_virt = remapper_virt;
|
||||
grub_relocator_xen_remapper_virt2 = remapper_virt;
|
||||
grub_relocator_xen_remap_continue = trampoline_virt;
|
||||
@@ -88,10 +98,12 @@ grub_relocator_xen_boot (struct grub_relocator *rel,
|
||||
grub_relocator_xen_remapper_map_high = (mfn_list[remapper_pfn] >> 20);
|
||||
grub_relocator_xen_mmu_op_addr = (char *) &grub_relocator_xen_mmu_op
|
||||
- (char *) &grub_relocator_xen_remap_start + remapper_virt;
|
||||
+ grub_relocator_xen_paging_areas_addr =
|
||||
+ (char *) &grub_relocator_xen_paging_areas
|
||||
+ - (char *) &grub_relocator_xen_remap_start + remapper_virt;
|
||||
#endif
|
||||
|
||||
- grub_relocator_xen_mfn_list = state.mfn_list
|
||||
- + state.paging_start * sizeof (grub_addr_t);
|
||||
+ grub_relocator_xen_mfn_list = state.mfn_list;
|
||||
|
||||
grub_memset (grub_relocator_xen_mmu_op, 0,
|
||||
sizeof (grub_relocator_xen_mmu_op));
|
||||
@@ -100,9 +112,9 @@ grub_relocator_xen_boot (struct grub_relocator *rel,
|
||||
#else
|
||||
grub_relocator_xen_mmu_op[0].cmd = MMUEXT_PIN_L4_TABLE;
|
||||
#endif
|
||||
- grub_relocator_xen_mmu_op[0].arg1.mfn = mfn_list[state.paging_start];
|
||||
+ grub_relocator_xen_mmu_op[0].arg1.mfn = mfn_list[state.paging_start[0]];
|
||||
grub_relocator_xen_mmu_op[1].cmd = MMUEXT_NEW_BASEPTR;
|
||||
- grub_relocator_xen_mmu_op[1].arg1.mfn = mfn_list[state.paging_start];
|
||||
+ grub_relocator_xen_mmu_op[1].arg1.mfn = mfn_list[state.paging_start[0]];
|
||||
grub_relocator_xen_mmu_op[2].cmd = MMUEXT_UNPIN_TABLE;
|
||||
grub_relocator_xen_mmu_op[2].arg1.mfn =
|
||||
mfn_list[grub_xen_start_page_addr->pt_base >> 12];
|
||||
diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
|
||||
index 9639ca1..a98badf 100644
|
||||
--- a/grub-core/loader/i386/xen.c
|
||||
+++ b/grub-core/loader/i386/xen.c
|
||||
@@ -39,9 +39,34 @@
|
||||
#include <grub/xen.h>
|
||||
#include <grub/xen_file.h>
|
||||
#include <grub/linux.h>
|
||||
+#include <grub/i386/memory.h>
|
||||
|
||||
GRUB_MOD_LICENSE ("GPLv3+");
|
||||
|
||||
+#ifdef __x86_64__
|
||||
+#define NUMBER_OF_LEVELS 4
|
||||
+#define INTERMEDIATE_OR (GRUB_PAGE_PRESENT | GRUB_PAGE_RW | GRUB_PAGE_USER)
|
||||
+#define VIRT_MASK 0x0000ffffffffffffULL
|
||||
+#else
|
||||
+#define NUMBER_OF_LEVELS 3
|
||||
+#define INTERMEDIATE_OR (GRUB_PAGE_PRESENT | GRUB_PAGE_RW)
|
||||
+#define VIRT_MASK 0x00000000ffffffffULL
|
||||
+#define HYPERVISOR_PUD_ADDRESS 0xc0000000ULL
|
||||
+#endif
|
||||
+
|
||||
+struct grub_xen_mapping_lvl {
|
||||
+ grub_uint64_t virt_start;
|
||||
+ grub_uint64_t virt_end;
|
||||
+ grub_uint64_t pfn_start;
|
||||
+ grub_uint64_t n_pt_pages;
|
||||
+};
|
||||
+
|
||||
+struct grub_xen_mapping {
|
||||
+ grub_uint64_t *where;
|
||||
+ struct grub_xen_mapping_lvl area;
|
||||
+ struct grub_xen_mapping_lvl lvls[NUMBER_OF_LEVELS];
|
||||
+};
|
||||
+
|
||||
struct xen_loader_state {
|
||||
struct grub_relocator *relocator;
|
||||
struct grub_relocator_xen_state state;
|
||||
@@ -51,12 +76,13 @@ struct xen_loader_state {
|
||||
struct start_info *virt_start_info;
|
||||
grub_xen_mfn_t console_pfn;
|
||||
grub_uint64_t max_addr;
|
||||
- grub_uint64_t *virt_pgtable;
|
||||
- grub_uint64_t pgtbl_start;
|
||||
grub_uint64_t pgtbl_end;
|
||||
struct xen_multiboot_mod_list *module_info_page;
|
||||
grub_uint64_t modules_target_start;
|
||||
grub_size_t n_modules;
|
||||
+ struct grub_xen_mapping *map_reloc;
|
||||
+ struct grub_xen_mapping mappings[XEN_MAX_MAPPINGS];
|
||||
+ int n_mappings;
|
||||
int loaded;
|
||||
};
|
||||
|
||||
@@ -64,9 +90,8 @@ static struct xen_loader_state xen_state;
|
||||
|
||||
static grub_dl_t my_mod;
|
||||
|
||||
-#define PAGE_SIZE 4096
|
||||
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
|
||||
#define MAX_MODULES (PAGE_SIZE / sizeof (struct xen_multiboot_mod_list))
|
||||
-#define PAGE_SHIFT 12
|
||||
#define STACK_SIZE 1048576
|
||||
#define ADDITIONAL_SIZE (1 << 19)
|
||||
#define ALIGN_SIZE (1 << 22)
|
||||
@@ -79,100 +104,163 @@ page2offset (grub_uint64_t page)
|
||||
return page << PAGE_SHIFT;
|
||||
}
|
||||
|
||||
-#ifdef __x86_64__
|
||||
-#define NUMBER_OF_LEVELS 4
|
||||
-#define INTERMEDIATE_OR 7
|
||||
-#else
|
||||
-#define NUMBER_OF_LEVELS 3
|
||||
-#define INTERMEDIATE_OR 3
|
||||
-#endif
|
||||
-
|
||||
-static grub_uint64_t
|
||||
-get_pgtable_size (grub_uint64_t total_pages, grub_uint64_t virt_base)
|
||||
+static grub_err_t
|
||||
+get_pgtable_size (grub_uint64_t from, grub_uint64_t to, grub_uint64_t pfn)
|
||||
{
|
||||
- if (!virt_base)
|
||||
- total_pages++;
|
||||
- grub_uint64_t ret = 0;
|
||||
- grub_uint64_t ll = total_pages;
|
||||
- int i;
|
||||
- for (i = 0; i < NUMBER_OF_LEVELS; i++)
|
||||
- {
|
||||
- ll = (ll + POINTERS_PER_PAGE - 1) >> LOG_POINTERS_PER_PAGE;
|
||||
- /* PAE wants all 4 root directories present. */
|
||||
-#ifdef __i386__
|
||||
- if (i == 1)
|
||||
- ll = 4;
|
||||
-#endif
|
||||
- ret += ll;
|
||||
- }
|
||||
- for (i = 1; i < NUMBER_OF_LEVELS; i++)
|
||||
- if (virt_base >> (PAGE_SHIFT + i * LOG_POINTERS_PER_PAGE))
|
||||
- ret++;
|
||||
- return ret;
|
||||
-}
|
||||
+ struct grub_xen_mapping *map, *map_cmp;
|
||||
+ grub_uint64_t mask, bits;
|
||||
+ int i, m;
|
||||
|
||||
-static void
|
||||
-generate_page_table (grub_uint64_t *where, grub_uint64_t paging_start,
|
||||
- grub_uint64_t paging_end, grub_uint64_t total_pages,
|
||||
- grub_uint64_t virt_base, grub_xen_mfn_t *mfn_list)
|
||||
-{
|
||||
- if (!virt_base)
|
||||
- paging_end++;
|
||||
+ if (xen_state.n_mappings == XEN_MAX_MAPPINGS)
|
||||
+ return grub_error (GRUB_ERR_BUG, "too many mapped areas");
|
||||
|
||||
- grub_uint64_t lx[NUMBER_OF_LEVELS], lxs[NUMBER_OF_LEVELS];
|
||||
- grub_uint64_t nlx, nls, sz = 0;
|
||||
- int l;
|
||||
+ grub_dprintf ("xen", "get_pgtable_size %d from=%llx, to=%llx, pfn=%llx\n",
|
||||
+ xen_state.n_mappings, (unsigned long long) from,
|
||||
+ (unsigned long long) to, (unsigned long long) pfn);
|
||||
|
||||
- nlx = paging_end;
|
||||
- nls = virt_base >> PAGE_SHIFT;
|
||||
- for (l = 0; l < NUMBER_OF_LEVELS; l++)
|
||||
+ map = xen_state.mappings + xen_state.n_mappings;
|
||||
+ grub_memset (map, 0, sizeof (*map));
|
||||
+
|
||||
+ map->area.virt_start = from & VIRT_MASK;
|
||||
+ map->area.virt_end = (to - 1) & VIRT_MASK;
|
||||
+ map->area.n_pt_pages = 0;
|
||||
+
|
||||
+ for (i = NUMBER_OF_LEVELS - 1; i >= 0; i--)
|
||||
{
|
||||
- nlx = (nlx + POINTERS_PER_PAGE - 1) >> LOG_POINTERS_PER_PAGE;
|
||||
- /* PAE wants all 4 root directories present. */
|
||||
+ map->lvls[i].pfn_start = pfn + map->area.n_pt_pages;
|
||||
+ if (i == NUMBER_OF_LEVELS - 1)
|
||||
+ {
|
||||
+ if (xen_state.n_mappings == 0)
|
||||
+ {
|
||||
+ map->lvls[i].virt_start = 0;
|
||||
+ map->lvls[i].virt_end = VIRT_MASK;
|
||||
+ map->lvls[i].n_pt_pages = 1;
|
||||
+ map->area.n_pt_pages++;
|
||||
+ }
|
||||
+ continue;
|
||||
+ }
|
||||
+
|
||||
+ bits = PAGE_SHIFT + (i + 1) * LOG_POINTERS_PER_PAGE;
|
||||
+ mask = (1ULL << bits) - 1;
|
||||
+ map->lvls[i].virt_start = map->area.virt_start & ~mask;
|
||||
+ map->lvls[i].virt_end = map->area.virt_end | mask;
|
||||
#ifdef __i386__
|
||||
- if (l == 1)
|
||||
- nlx = 4;
|
||||
+ /* PAE wants last root directory present. */
|
||||
+ if (i == 1 && to <= HYPERVISOR_PUD_ADDRESS && xen_state.n_mappings == 0)
|
||||
+ map->lvls[i].virt_end = VIRT_MASK;
|
||||
#endif
|
||||
- lx[l] = nlx;
|
||||
- sz += lx[l];
|
||||
- lxs[l] = nls & (POINTERS_PER_PAGE - 1);
|
||||
- if (nls && l != 0)
|
||||
- sz++;
|
||||
- nls >>= LOG_POINTERS_PER_PAGE;
|
||||
+ for (m = 0; m < xen_state.n_mappings; m++)
|
||||
+ {
|
||||
+ map_cmp = xen_state.mappings + m;
|
||||
+ if (map_cmp->lvls[i].virt_start == map_cmp->lvls[i].virt_end)
|
||||
+ continue;
|
||||
+ if (map->lvls[i].virt_start >= map_cmp->lvls[i].virt_start &&
|
||||
+ map->lvls[i].virt_end <= map_cmp->lvls[i].virt_end)
|
||||
+ {
|
||||
+ map->lvls[i].virt_start = 0;
|
||||
+ map->lvls[i].virt_end = 0;
|
||||
+ break;
|
||||
+ }
|
||||
+ if (map->lvls[i].virt_start >= map_cmp->lvls[i].virt_start &&
|
||||
+ map->lvls[i].virt_start <= map_cmp->lvls[i].virt_end)
|
||||
+ map->lvls[i].virt_start = map_cmp->lvls[i].virt_end + 1;
|
||||
+ if (map->lvls[i].virt_end >= map_cmp->lvls[i].virt_start &&
|
||||
+ map->lvls[i].virt_end <= map_cmp->lvls[i].virt_end)
|
||||
+ map->lvls[i].virt_end = map_cmp->lvls[i].virt_start - 1;
|
||||
+ }
|
||||
+ if (map->lvls[i].virt_start < map->lvls[i].virt_end)
|
||||
+ map->lvls[i].n_pt_pages =
|
||||
+ ((map->lvls[i].virt_end - map->lvls[i].virt_start) >> bits) + 1;
|
||||
+ map->area.n_pt_pages += map->lvls[i].n_pt_pages;
|
||||
+ grub_dprintf ("xen", "get_pgtable_size level %d: virt %llx-%llx %d pts\n",
|
||||
+ i, (unsigned long long) map->lvls[i].virt_start,
|
||||
+ (unsigned long long) map->lvls[i].virt_end,
|
||||
+ (int) map->lvls[i].n_pt_pages);
|
||||
}
|
||||
|
||||
- grub_uint64_t lp;
|
||||
- grub_uint64_t j;
|
||||
- grub_uint64_t *pg = (grub_uint64_t *) where;
|
||||
- int pr = 0;
|
||||
+ grub_dprintf ("xen", "get_pgtable_size return: %d page tables\n",
|
||||
+ (int) map->area.n_pt_pages);
|
||||
|
||||
- grub_memset (pg, 0, sz * PAGE_SIZE);
|
||||
+ xen_state.state.paging_start[xen_state.n_mappings] = pfn;
|
||||
+ xen_state.state.paging_size[xen_state.n_mappings] = map->area.n_pt_pages;
|
||||
|
||||
- lp = paging_start + lx[NUMBER_OF_LEVELS - 1];
|
||||
- for (l = NUMBER_OF_LEVELS - 1; l >= 1; l--)
|
||||
+ return GRUB_ERR_NONE;
|
||||
+}
|
||||
+
|
||||
+static grub_uint64_t *
|
||||
+get_pg_table_virt (int mapping, int level)
|
||||
+{
|
||||
+ grub_uint64_t pfn;
|
||||
+ struct grub_xen_mapping *map;
|
||||
+
|
||||
+ map = xen_state.mappings + mapping;
|
||||
+ pfn = map->lvls[level].pfn_start - map->lvls[NUMBER_OF_LEVELS - 1].pfn_start;
|
||||
+ return map->where + pfn * POINTERS_PER_PAGE;
|
||||
+}
|
||||
+
|
||||
+static grub_uint64_t
|
||||
+get_pg_table_prot (int level, grub_uint64_t pfn)
|
||||
+{
|
||||
+ int m;
|
||||
+ grub_uint64_t pfn_s, pfn_e;
|
||||
+
|
||||
+ if (level > 0)
|
||||
+ return INTERMEDIATE_OR;
|
||||
+ for (m = 0; m < xen_state.n_mappings; m++)
|
||||
{
|
||||
- if (lxs[l] || pr)
|
||||
- pg[0] = page2offset (mfn_list[lp++]) | INTERMEDIATE_OR;
|
||||
- if (pr)
|
||||
- pg += POINTERS_PER_PAGE;
|
||||
- for (j = 0; j < lx[l - 1]; j++)
|
||||
- pg[j + lxs[l]] = page2offset (mfn_list[lp++]) | INTERMEDIATE_OR;
|
||||
- pg += lx[l] * POINTERS_PER_PAGE;
|
||||
- if (lxs[l])
|
||||
- pr = 1;
|
||||
+ pfn_s = xen_state.mappings[m].lvls[NUMBER_OF_LEVELS - 1].pfn_start;
|
||||
+ pfn_e = xen_state.mappings[m].area.n_pt_pages + pfn_s;
|
||||
+ if (pfn >= pfn_s && pfn < pfn_e)
|
||||
+ return GRUB_PAGE_PRESENT | GRUB_PAGE_USER;
|
||||
}
|
||||
+ return GRUB_PAGE_PRESENT | GRUB_PAGE_RW | GRUB_PAGE_USER;
|
||||
+}
|
||||
+
|
||||
+static void
|
||||
+generate_page_table (grub_xen_mfn_t *mfn_list)
|
||||
+{
|
||||
+ int l, m1, m2;
|
||||
+ long p, p_s, p_e;
|
||||
+ grub_uint64_t start, end, pfn;
|
||||
+ grub_uint64_t *pg;
|
||||
+ struct grub_xen_mapping_lvl *lvl;
|
||||
|
||||
- if (lxs[0] || pr)
|
||||
- pg[0] = page2offset (mfn_list[total_pages]) | 5;
|
||||
- if (pr)
|
||||
- pg += POINTERS_PER_PAGE;
|
||||
+ for (m1 = 0; m1 < xen_state.n_mappings; m1++)
|
||||
+ grub_memset (xen_state.mappings[m1].where, 0,
|
||||
+ xen_state.mappings[m1].area.n_pt_pages * PAGE_SIZE);
|
||||
|
||||
- for (j = 0; j < paging_end; j++)
|
||||
+ for (l = NUMBER_OF_LEVELS - 1; l >= 0; l--)
|
||||
{
|
||||
- if (j >= paging_start && j < lp)
|
||||
- pg[j + lxs[0]] = page2offset (mfn_list[j]) | 5;
|
||||
- else
|
||||
- pg[j + lxs[0]] = page2offset (mfn_list[j]) | 7;
|
||||
+ for (m1 = 0; m1 < xen_state.n_mappings; m1++)
|
||||
+ {
|
||||
+ start = xen_state.mappings[m1].lvls[l].virt_start;
|
||||
+ end = xen_state.mappings[m1].lvls[l].virt_end;
|
||||
+ pg = get_pg_table_virt(m1, l);
|
||||
+ for (m2 = 0; m2 < xen_state.n_mappings; m2++)
|
||||
+ {
|
||||
+ lvl = (l > 0) ? xen_state.mappings[m2].lvls + l - 1
|
||||
+ : &xen_state.mappings[m2].area;
|
||||
+ if (l > 0 && lvl->n_pt_pages == 0)
|
||||
+ continue;
|
||||
+ if (lvl->virt_start >= end || lvl->virt_end <= start)
|
||||
+ continue;
|
||||
+ p_s = (grub_max (start, lvl->virt_start) - start) >>
|
||||
+ (PAGE_SHIFT + l * LOG_POINTERS_PER_PAGE);
|
||||
+ p_e = (grub_min (end, lvl->virt_end) - start) >>
|
||||
+ (PAGE_SHIFT + l * LOG_POINTERS_PER_PAGE);
|
||||
+ pfn = ((grub_max (start, lvl->virt_start) - lvl->virt_start) >>
|
||||
+ (PAGE_SHIFT + l * LOG_POINTERS_PER_PAGE)) + lvl->pfn_start;
|
||||
+ grub_dprintf ("xen", "write page table entries level %d pg %p "
|
||||
+ "mapping %d/%d index %lx-%lx pfn %llx\n",
|
||||
+ l, pg, m1, m2, p_s, p_e, (unsigned long long) pfn);
|
||||
+ for (p = p_s; p <= p_e; p++)
|
||||
+ {
|
||||
+ pg[p] = page2offset (mfn_list[pfn]) |
|
||||
+ get_pg_table_prot (l, pfn);
|
||||
+ pfn++;
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
}
|
||||
}
|
||||
|
||||
@@ -285,45 +373,71 @@ grub_xen_pt_alloc (void)
|
||||
grub_relocator_chunk_t ch;
|
||||
grub_err_t err;
|
||||
grub_uint64_t nr_info_pages;
|
||||
- grub_uint64_t nr_pages, nr_pt_pages, nr_need_pages;
|
||||
+ grub_uint64_t nr_need_pages;
|
||||
+ grub_uint64_t try_virt_end;
|
||||
+ struct grub_xen_mapping *map;
|
||||
|
||||
- if (xen_state.virt_pgtable)
|
||||
+ if (xen_state.pgtbl_end)
|
||||
return GRUB_ERR_NONE;
|
||||
|
||||
+ map = xen_state.mappings + xen_state.n_mappings;
|
||||
+ xen_state.map_reloc = map + 1;
|
||||
+
|
||||
xen_state.next_start.pt_base =
|
||||
xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
- xen_state.state.paging_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
-
|
||||
nr_info_pages = xen_state.max_addr >> PAGE_SHIFT;
|
||||
- nr_pages = nr_info_pages;
|
||||
+ nr_need_pages = nr_info_pages;
|
||||
|
||||
while (1)
|
||||
{
|
||||
- nr_pages = ALIGN_UP (nr_pages, (ALIGN_SIZE >> PAGE_SHIFT));
|
||||
- nr_pt_pages = get_pgtable_size (nr_pages, xen_state.xen_inf.virt_base);
|
||||
- nr_need_pages =
|
||||
- nr_info_pages + nr_pt_pages +
|
||||
- ((ADDITIONAL_SIZE + STACK_SIZE) >> PAGE_SHIFT);
|
||||
- if (nr_pages >= nr_need_pages)
|
||||
+ try_virt_end = ALIGN_UP (xen_state.xen_inf.virt_base +
|
||||
+ page2offset (nr_need_pages) +
|
||||
+ ADDITIONAL_SIZE + STACK_SIZE, ALIGN_SIZE);
|
||||
+ if (!xen_state.xen_inf.virt_base)
|
||||
+ try_virt_end += PAGE_SIZE;
|
||||
+
|
||||
+ err = get_pgtable_size (xen_state.xen_inf.virt_base, try_virt_end,
|
||||
+ nr_info_pages);
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ xen_state.n_mappings++;
|
||||
+
|
||||
+ /* Map the relocator page either at virtual 0 or after end of area. */
|
||||
+ nr_need_pages = nr_info_pages + map->area.n_pt_pages;
|
||||
+ if (xen_state.xen_inf.virt_base)
|
||||
+ err = get_pgtable_size (0, PAGE_SIZE, nr_need_pages);
|
||||
+ else
|
||||
+ err = get_pgtable_size (try_virt_end - PAGE_SIZE, try_virt_end,
|
||||
+ nr_need_pages);
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ nr_need_pages += xen_state.map_reloc->area.n_pt_pages;
|
||||
+
|
||||
+ if (xen_state.xen_inf.virt_base + page2offset (nr_need_pages) <=
|
||||
+ try_virt_end)
|
||||
break;
|
||||
- nr_pages = nr_need_pages;
|
||||
+
|
||||
+ xen_state.n_mappings--;
|
||||
}
|
||||
|
||||
+ xen_state.n_mappings++;
|
||||
+ nr_need_pages = map->area.n_pt_pages + xen_state.map_reloc->area.n_pt_pages;
|
||||
err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
xen_state.max_addr,
|
||||
- page2offset (nr_pt_pages));
|
||||
+ page2offset (nr_need_pages));
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
- xen_state.virt_pgtable = get_virtual_current_address (ch);
|
||||
- xen_state.pgtbl_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
- xen_state.max_addr += page2offset (nr_pt_pages);
|
||||
+ map->where = get_virtual_current_address (ch);
|
||||
+ map->area.pfn_start = 0;
|
||||
+ xen_state.max_addr += page2offset (nr_need_pages);
|
||||
xen_state.state.stack =
|
||||
xen_state.max_addr + STACK_SIZE + xen_state.xen_inf.virt_base;
|
||||
- xen_state.state.paging_size = nr_pt_pages;
|
||||
- xen_state.next_start.nr_pt_frames = nr_pt_pages;
|
||||
- xen_state.max_addr = page2offset (nr_pages);
|
||||
- xen_state.pgtbl_end = nr_pages;
|
||||
+ xen_state.next_start.nr_pt_frames = nr_need_pages;
|
||||
+ xen_state.max_addr = try_virt_end - xen_state.xen_inf.virt_base;
|
||||
+ xen_state.pgtbl_end = xen_state.max_addr >> PAGE_SHIFT;
|
||||
+ xen_state.map_reloc->where = (grub_uint64_t *) ((char *) map->where +
|
||||
+ page2offset (map->area.n_pt_pages));
|
||||
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
@@ -372,9 +486,8 @@ grub_xen_boot (void)
|
||||
(unsigned long long) xen_state.xen_inf.virt_base,
|
||||
(unsigned long long) page2offset (nr_pages));
|
||||
|
||||
- generate_page_table (xen_state.virt_pgtable, xen_state.pgtbl_start,
|
||||
- xen_state.pgtbl_end, nr_pages,
|
||||
- xen_state.xen_inf.virt_base, xen_state.virt_mfn_list);
|
||||
+ xen_state.map_reloc->area.pfn_start = nr_pages;
|
||||
+ generate_page_table (xen_state.virt_mfn_list);
|
||||
|
||||
xen_state.state.entry_point = xen_state.xen_inf.entry_point;
|
||||
|
||||
diff --git a/include/grub/i386/memory.h b/include/grub/i386/memory.h
|
||||
index c9b1328..8bb6e1c 100644
|
||||
--- a/include/grub/i386/memory.h
|
||||
+++ b/include/grub/i386/memory.h
|
||||
@@ -20,6 +20,8 @@
|
||||
#ifndef GRUB_MEMORY_CPU_HEADER
|
||||
#define GRUB_MEMORY_CPU_HEADER 1
|
||||
|
||||
+#define PAGE_SHIFT 12
|
||||
+
|
||||
/* The flag for protected mode. */
|
||||
#define GRUB_MEMORY_CPU_CR0_PE_ON 0x1
|
||||
#define GRUB_MEMORY_CPU_CR4_PAE_ON 0x00000020
|
||||
@@ -31,6 +33,11 @@
|
||||
#define GRUB_MEMORY_MACHINE_UPPER_START 0x100000 /* 1 MiB */
|
||||
#define GRUB_MEMORY_MACHINE_LOWER_SIZE GRUB_MEMORY_MACHINE_UPPER_START
|
||||
|
||||
+/* Some PTE definitions. */
|
||||
+#define GRUB_PAGE_PRESENT 0x00000001
|
||||
+#define GRUB_PAGE_RW 0x00000002
|
||||
+#define GRUB_PAGE_USER 0x00000004
|
||||
+
|
||||
#ifndef ASM_FILE
|
||||
|
||||
#define GRUB_MMAP_MALLOC_LOW 1
|
||||
diff --git a/include/grub/xen/relocator.h b/include/grub/xen/relocator.h
|
||||
index ae45dce..35a0ad9 100644
|
||||
--- a/include/grub/xen/relocator.h
|
||||
+++ b/include/grub/xen/relocator.h
|
||||
@@ -23,11 +23,13 @@
|
||||
#include <grub/err.h>
|
||||
#include <grub/relocator.h>
|
||||
|
||||
+#define XEN_MAX_MAPPINGS 3
|
||||
+
|
||||
struct grub_relocator_xen_state
|
||||
{
|
||||
grub_addr_t start_info;
|
||||
- grub_addr_t paging_start;
|
||||
- grub_addr_t paging_size;
|
||||
+ grub_addr_t paging_start[XEN_MAX_MAPPINGS];
|
||||
+ grub_addr_t paging_size[XEN_MAX_MAPPINGS];
|
||||
grub_addr_t mfn_list;
|
||||
grub_addr_t stack;
|
||||
grub_addr_t entry_point;
|
||||
--
|
||||
2.6.6
|
||||
|
149
0011-xen-add-capability-to-load-p2m-list-outside-of-kerne.patch
Normal file
149
0011-xen-add-capability-to-load-p2m-list-outside-of-kerne.patch
Normal file
@ -0,0 +1,149 @@
|
||||
From e776ceae4d7fe4ba66484bec7f85110f737168f9 Mon Sep 17 00:00:00 2001
|
||||
From: Juergen Gross <jgross@suse.com>
|
||||
Date: Thu, 3 Mar 2016 10:38:16 +0100
|
||||
Subject: [PATCH 11/11] xen: add capability to load p2m list outside of kernel
|
||||
mapping
|
||||
|
||||
Modern pvops linux kernels support a p2m list not covered by the
|
||||
kernel mapping. This capability is flagged by an elf-note specifying
|
||||
the virtual address the kernel is expecting the p2m list to be mapped
|
||||
to.
|
||||
|
||||
In case the elf-note is set by the kernel don't place the p2m list
|
||||
into the kernel mapping, but map it to the given address. This will
|
||||
allow to support domains with larger memory, as the kernel mapping is
|
||||
limited to 2GB and a domain with huge memory in the TB range will have
|
||||
a p2m list larger than this.
|
||||
|
||||
Signed-off-by: Juergen Gross <jgross@suse.com>
|
||||
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||||
---
|
||||
grub-core/loader/i386/xen.c | 53 +++++++++++++++++++++++++++++++-------
|
||||
grub-core/loader/i386/xen_fileXX.c | 4 +++
|
||||
include/grub/xen_file.h | 2 ++
|
||||
3 files changed, 50 insertions(+), 9 deletions(-)
|
||||
|
||||
diff --git a/grub-core/loader/i386/xen.c b/grub-core/loader/i386/xen.c
|
||||
index a98badf..51d1ddd 100644
|
||||
--- a/grub-core/loader/i386/xen.c
|
||||
+++ b/grub-core/loader/i386/xen.c
|
||||
@@ -313,24 +313,50 @@ static grub_err_t
|
||||
grub_xen_p2m_alloc (void)
|
||||
{
|
||||
grub_relocator_chunk_t ch;
|
||||
- grub_size_t p2msize;
|
||||
+ grub_size_t p2msize, p2malloc;
|
||||
grub_err_t err;
|
||||
+ struct grub_xen_mapping *map;
|
||||
|
||||
if (xen_state.virt_mfn_list)
|
||||
return GRUB_ERR_NONE;
|
||||
|
||||
+ map = xen_state.mappings + xen_state.n_mappings;
|
||||
+ p2msize = ALIGN_UP (sizeof (grub_xen_mfn_t) *
|
||||
+ grub_xen_start_page_addr->nr_pages, PAGE_SIZE);
|
||||
+ if (xen_state.xen_inf.has_p2m_base)
|
||||
+ {
|
||||
+ err = get_pgtable_size (xen_state.xen_inf.p2m_base,
|
||||
+ xen_state.xen_inf.p2m_base + p2msize,
|
||||
+ (xen_state.max_addr + p2msize) >> PAGE_SHIFT);
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+
|
||||
+ map->area.pfn_start = xen_state.max_addr >> PAGE_SHIFT;
|
||||
+ p2malloc = p2msize + page2offset (map->area.n_pt_pages);
|
||||
+ xen_state.n_mappings++;
|
||||
+ xen_state.next_start.mfn_list = xen_state.xen_inf.p2m_base;
|
||||
+ xen_state.next_start.first_p2m_pfn = map->area.pfn_start;
|
||||
+ xen_state.next_start.nr_p2m_frames = p2malloc >> PAGE_SHIFT;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ xen_state.next_start.mfn_list =
|
||||
+ xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
+ p2malloc = p2msize;
|
||||
+ }
|
||||
+
|
||||
xen_state.state.mfn_list = xen_state.max_addr;
|
||||
- xen_state.next_start.mfn_list =
|
||||
- xen_state.max_addr + xen_state.xen_inf.virt_base;
|
||||
- p2msize = sizeof (grub_xen_mfn_t) * grub_xen_start_page_addr->nr_pages;
|
||||
err = grub_relocator_alloc_chunk_addr (xen_state.relocator, &ch,
|
||||
- xen_state.max_addr, p2msize);
|
||||
+ xen_state.max_addr, p2malloc);
|
||||
if (err)
|
||||
return err;
|
||||
xen_state.virt_mfn_list = get_virtual_current_address (ch);
|
||||
+ if (xen_state.xen_inf.has_p2m_base)
|
||||
+ map->where = (grub_uint64_t *) xen_state.virt_mfn_list +
|
||||
+ p2msize / sizeof (grub_uint64_t);
|
||||
grub_memcpy (xen_state.virt_mfn_list,
|
||||
(void *) grub_xen_start_page_addr->mfn_list, p2msize);
|
||||
- xen_state.max_addr = ALIGN_UP (xen_state.max_addr + p2msize, PAGE_SIZE);
|
||||
+ xen_state.max_addr += p2malloc;
|
||||
|
||||
return GRUB_ERR_NONE;
|
||||
}
|
||||
@@ -448,9 +474,12 @@ grub_xen_alloc_boot_data (void)
|
||||
{
|
||||
grub_err_t err;
|
||||
|
||||
- err = grub_xen_p2m_alloc ();
|
||||
- if (err)
|
||||
- return err;
|
||||
+ if (!xen_state.xen_inf.has_p2m_base)
|
||||
+ {
|
||||
+ err = grub_xen_p2m_alloc ();
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ }
|
||||
err = grub_xen_special_alloc ();
|
||||
if (err)
|
||||
return err;
|
||||
@@ -475,6 +504,12 @@ grub_xen_boot (void)
|
||||
err = grub_xen_alloc_boot_data ();
|
||||
if (err)
|
||||
return err;
|
||||
+ if (xen_state.xen_inf.has_p2m_base)
|
||||
+ {
|
||||
+ err = grub_xen_p2m_alloc ();
|
||||
+ if (err)
|
||||
+ return err;
|
||||
+ }
|
||||
|
||||
err = set_mfns (xen_state.console_pfn);
|
||||
if (err)
|
||||
diff --git a/grub-core/loader/i386/xen_fileXX.c b/grub-core/loader/i386/xen_fileXX.c
|
||||
index 8751174..fb66e66 100644
|
||||
--- a/grub-core/loader/i386/xen_fileXX.c
|
||||
+++ b/grub-core/loader/i386/xen_fileXX.c
|
||||
@@ -261,6 +261,10 @@ parse_note (grub_elf_t elf, struct grub_xen_file_info *xi,
|
||||
descsz == 2 ? 2 : 3) == 0)
|
||||
xi->arch = GRUB_XEN_FILE_I386;
|
||||
break;
|
||||
+ case XEN_ELFNOTE_INIT_P2M:
|
||||
+ xi->p2m_base = grub_le_to_cpu_addr (*(Elf_Addr *) desc);
|
||||
+ xi->has_p2m_base = 1;
|
||||
+ break;
|
||||
case XEN_ELFNOTE_MOD_START_PFN:
|
||||
xi->unmapped_initrd = !!grub_le_to_cpu32(*(grub_uint32_t *) desc);
|
||||
break;
|
||||
diff --git a/include/grub/xen_file.h b/include/grub/xen_file.h
|
||||
index ed749fa..6587999 100644
|
||||
--- a/include/grub/xen_file.h
|
||||
+++ b/include/grub/xen_file.h
|
||||
@@ -32,9 +32,11 @@ struct grub_xen_file_info
|
||||
grub_uint64_t entry_point;
|
||||
grub_uint64_t hypercall_page;
|
||||
grub_uint64_t paddr_offset;
|
||||
+ grub_uint64_t p2m_base;
|
||||
int has_hypercall_page;
|
||||
int has_note;
|
||||
int has_xen_guest;
|
||||
+ int has_p2m_base;
|
||||
int extended_cr3;
|
||||
int unmapped_initrd;
|
||||
enum
|
||||
--
|
||||
2.6.6
|
||||
|
@ -1,3 +1,20 @@
|
||||
-------------------------------------------------------------------
|
||||
Fri Oct 21 09:34:58 UTC 2016 - mchang@suse.com
|
||||
|
||||
- From Juergen Gross <jgross@suse.com>: grub-xen: support booting huge
|
||||
pv-domains (bsc#1004398) (bsc#899465)
|
||||
* 0001-xen-make-xen-loader-callable-multiple-times.patch
|
||||
* 0002-xen-avoid-memleaks-on-error.patch
|
||||
* 0003-xen-reduce-number-of-global-variables-in-xen-loader.patch
|
||||
* 0004-xen-add-elfnote.h-to-avoid-using-numbers-instead-of-.patch
|
||||
* 0005-xen-synchronize-xen-header.patch
|
||||
* 0006-xen-factor-out-p2m-list-allocation-into-separate-fun.patch
|
||||
* 0007-xen-factor-out-allocation-of-special-pages-into-sepa.patch
|
||||
* 0008-xen-factor-out-allocation-of-page-tables-into-separa.patch
|
||||
* 0009-xen-add-capability-to-load-initrd-outside-of-initial.patch
|
||||
* 0010-xen-modify-page-table-construction.patch
|
||||
* 0011-xen-add-capability-to-load-p2m-list-outside-of-kerne.patch
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Tue Oct 11 20:59:40 UTC 2016 - dmueller@suse.com
|
||||
|
||||
|
23
grub2.spec
23
grub2.spec
@ -230,6 +230,18 @@ Patch284: 0005-grub.texi-Add-net_bootp6-doument.patch
|
||||
Patch285: 0006-bootp-Add-processing-DHCPACK-packet-from-HTTP-Boot.patch
|
||||
Patch286: 0007-efinet-Setting-network-from-UEFI-device-path.patch
|
||||
Patch287: 0008-efinet-Setting-DNS-server-from-UEFI-protocol.patch
|
||||
# Support booting huge xen pv-domains (bsc#1004398) (bsc#899465)
|
||||
Patch300: 0001-xen-make-xen-loader-callable-multiple-times.patch
|
||||
Patch301: 0002-xen-avoid-memleaks-on-error.patch
|
||||
Patch302: 0003-xen-reduce-number-of-global-variables-in-xen-loader.patch
|
||||
Patch303: 0004-xen-add-elfnote.h-to-avoid-using-numbers-instead-of-.patch
|
||||
Patch304: 0005-xen-synchronize-xen-header.patch
|
||||
Patch305: 0006-xen-factor-out-p2m-list-allocation-into-separate-fun.patch
|
||||
Patch306: 0007-xen-factor-out-allocation-of-special-pages-into-sepa.patch
|
||||
Patch307: 0008-xen-factor-out-allocation-of-page-tables-into-separa.patch
|
||||
Patch308: 0009-xen-add-capability-to-load-initrd-outside-of-initial.patch
|
||||
Patch309: 0010-xen-modify-page-table-construction.patch
|
||||
Patch310: 0011-xen-add-capability-to-load-p2m-list-outside-of-kerne.patch
|
||||
|
||||
Requires: gettext-runtime
|
||||
%if 0%{?suse_version} >= 1140
|
||||
@ -463,6 +475,17 @@ swap partition while in resuming
|
||||
%patch285 -p1
|
||||
%patch286 -p1
|
||||
%patch287 -p1
|
||||
%patch300 -p1
|
||||
%patch301 -p1
|
||||
%patch302 -p1
|
||||
%patch303 -p1
|
||||
%patch304 -p1
|
||||
%patch305 -p1
|
||||
%patch306 -p1
|
||||
%patch307 -p1
|
||||
%patch308 -p1
|
||||
%patch309 -p1
|
||||
%patch310 -p1
|
||||
|
||||
# This simplifies patch handling without need to use git to create patch
|
||||
# that renames file
|
||||
|
Loading…
Reference in New Issue
Block a user