Accepting request 232373 from home:jones_tony:branches:Kernel:kdump
OBS-URL: https://build.opensuse.org/request/show/232373 OBS-URL: https://build.opensuse.org/package/show/Kernel:kdump/kexec-tools?expand=0&rev=44
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Tony Jones
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@ -0,0 +1,54 @@
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From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
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Subject: [PATCH] kexec/fs2dt : Fix endianess issue with initrd base and size
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Date: Fri, 11 Apr 2014 12:10:30 +0200
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Git-commit: db3c32babc5279816344be8210ca91a64331f0fe
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References: bnc#873169
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Signed-off-by: Tony Jones <tonyj@suse.de>
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The initrd values exposed in the device tree of the kexeced kernel must be
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encoded in Big Endian format.
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Without this patch, kexeced LE kernel are expected to panic when dealing
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with the initrd image.
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Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
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---
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kexec/fs2dt.c | 9 +++++----
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1 file changed, 5 insertions(+), 4 deletions(-)
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diff --git a/kexec/fs2dt.c b/kexec/fs2dt.c
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index 5e6b98d..2a90979 100644
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--- a/kexec/fs2dt.c
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+++ b/kexec/fs2dt.c
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@@ -531,7 +531,7 @@ static void putnode(void)
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/* Add initrd entries to the second kernel */
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if (initrd_base && initrd_size && !strcmp(basename,"chosen/")) {
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int len = 8;
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- unsigned long long initrd_end;
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+ uint64_t bevalue;
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dt_reserve(&dt, 12); /* both props, of 6 words ea. */
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*dt++ = cpu_to_be32(3);
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@@ -539,7 +539,8 @@ static void putnode(void)
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*dt++ = cpu_to_be32(propnum("linux,initrd-start"));
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pad_structure_block(len);
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- memcpy(dt,&initrd_base,len);
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+ bevalue = cpu_to_be64(initrd_base);
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+ memcpy(dt, &bevalue, len);
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dt += (len + 3)/4;
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len = 8;
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@@ -547,10 +548,10 @@ static void putnode(void)
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*dt++ = cpu_to_be32(len);
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*dt++ = cpu_to_be32(propnum("linux,initrd-end"));
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- initrd_end = initrd_base + initrd_size;
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+ bevalue = cpu_to_be64(initrd_base + initrd_size);
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pad_structure_block(len);
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- memcpy(dt,&initrd_end,len);
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+ memcpy(dt, &bevalue, len);
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dt += (len + 3)/4;
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reserve(initrd_base, initrd_size);
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@ -0,0 +1,45 @@
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From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
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Subject: ppc64/purgatory: Device tree values should be read/stored in Big Endian
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References: bnc#875485
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Git-commit: pending
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Signed-off-by: Tony Jones <tonyj@suse.de>
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The purgatory code reads the device tree's version and stores if needed the
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currently running CPU number. These 2 values are stored in Big Endian
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format in the device tree and should be byte swapped when running in Little
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Endian mode.
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Without this fix, when running in SMP environment, kexec or kdump kernel may
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fail booting with the following message :
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Failed to identify boot CPU
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Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
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---
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purgatory/arch/ppc64/v2wrap.S | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/purgatory/arch/ppc64/v2wrap.S b/purgatory/arch/ppc64/v2wrap.S
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index 6fc62e3..dc5034f 100644
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--- a/purgatory/arch/ppc64/v2wrap.S
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+++ b/purgatory/arch/ppc64/v2wrap.S
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@@ -90,10 +90,20 @@ master:
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LOADADDR(16, dt_offset)
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ld 3,0(16) # load device-tree address
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mr 16,3 # save dt address in reg16
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+#ifdef __BIG_ENDIAN__
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lwz 6,20(3) # fetch version number
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+#else
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+ li 4,20
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+ lwbrx 6,3,4 # fetch BE version number
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+#endif
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cmpwi 0,6,2 # v2 ?
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blt 80f
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+#ifdef __BIG_ENDIAN__
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stw 17,28(3) # save my cpu number as boot_cpu_phys
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+#else
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+ li 4,28
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+ stwbrx 17,3,4 # Store my cpu as BE value
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+#endif
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80:
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LOADADDR(6,opal_base) # For OPAL early debug
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ld 8,0(6) # load the OPAL base address in r8
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@ -1,6 +1,9 @@
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From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
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Date: Tue, 25 Mar 2014 10:55:53 +0100
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Subject: [PATCH] ppc64/purgatory: Disabling GCC's stack protection
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Git-commit: 7d33c8933ebf8e1788ffff0132b6e08a2388748c
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References: bnc#869161
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Signed-off-by: Tony Jones <tonyj@suse.de>
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Some Linux distributions, like Suse, are turning on the GCC's stack
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protection mechanism by default (-fstack-protector). When building the
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@ -1,7 +1,8 @@
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From: Tony Jones <tonyj@suse.de>
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Subject: Disable erroneous efi memory descriptor version message
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References: bnc#867785c5
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Upstream: not yet
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Git-commit: 3e5443fffb2c311a61fe157be25b80de53329604
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Signed-off-by: Tony Jones <tonyj@suse.de>
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On non-EFI systems, efi_info section of boot_params is zero filled resulting
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in an erroneous message from kexec regarding "efi memory descriptor" version.
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@ -1,9 +1,25 @@
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-------------------------------------------------------------------
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Thu May 1 17:47:36 UTC 2014 - tonyj@suse.com
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- Device tree values should be big endian for ppc64le (bnc#875485)
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New patch: kexec-tools-ppc64-purgatory-device-tree-values-should-be-read-stored-in-big-endian.patch
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-------------------------------------------------------------------
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Fri Apr 11 18:08:41 UTC 2014 - tonyj@suse.com
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- Expose flattened device trees (ppc64le) to new kexec'd kernel in Big Endian
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format (bnc#873169)
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New patch: kexec-tools-fs2dt-fix-endianess-issue-with-initrd-base-and-size.patch
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- Update patch headers to reflect upstream commit id's:
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Change patch: kexec-tools-ppc64-purgatory-disabling-gcc-stack-protection.patch
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Change patch: kexec-tools-zero-efi-info.patch
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-------------------------------------------------------------------
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Tue Mar 18 16:45:14 UTC 2014 - tonyj@suse.com
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- Disable stack protector for ppc64le (bnc#869161)
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New patch: kexec-tools-ppc64-purgatory-disabling-gcc-stack-protection.patch_
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- Disable erroneous (efi memory descriptor version message (bnc#867785c5)
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New patch: kexec-tools-ppc64-purgatory-disabling-gcc-stack-protection.patch
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- Disable erroneous (efi memory descriptor version) message (bnc#867785c5)
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New patch: kexec-tools-zero-efi-info.patch
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-------------------------------------------------------------------
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@ -42,6 +42,8 @@ Patch6: %{name}-enable-aarch64-fixup.patch
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Patch7: %{name}-i386-bzimage_efi.patch
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Patch8: %{name}-ppc64-purgatory-disabling-gcc-stack-protection.patch
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Patch9: %{name}-zero-efi-info.patch
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Patch10: %{name}-fs2dt-fix-endianess-issue-with-initrd-base-and-size.patch
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Patch11: %{name}-ppc64-purgatory-device-tree-values-should-be-read-stored-in-big-endian.patch
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Url: ftp://kernel.org/pub/linux/utils/kernel/kexec/%{name}-%{version}.tar.bz2
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BuildRoot: %{_tmppath}/%{name}-%{version}-build
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#!BuildIgnore: fop
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@ -71,6 +73,8 @@ the loaded kernel after it panics.
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%patch7 -p1
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%patch8 -p1
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%patch9 -p1
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%patch10 -p1
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%patch11 -p1
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%build
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# disable as-needed
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