Accepting request 833393 from home:michael-chang:bsc:1176134
- Make efi hand off the default entry point of the linux command (bsc#1176134) * 0001-efi-linux-provide-linux-command.patch OBS-URL: https://build.opensuse.org/request/show/833393 OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=364
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Michael Chang
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103
0001-efi-linux-provide-linux-command.patch
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103
0001-efi-linux-provide-linux-command.patch
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From 987ab0dfbe7ef42bb6386fb7b428d3b965ba6d2b Mon Sep 17 00:00:00 2001
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From: Michael Chang <mchang@suse.com>
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Date: Mon, 7 Sep 2020 17:02:57 +0800
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Subject: [PATCH] efi/linux: provide linux command
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The linux kernel's efi handover entry point is used to boot efistub of
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the linux kernel. Since then the efistub has been improved with many new
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features and fixes that ordinary 32-bit entry point cannot provide.
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Besides, nearly every x86 efi kernel is built with efistub enabled so it
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is of little value to keep 32-bit entry as default to boot kernel
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without needed kconfig options enabled.
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For all good reasons, making efi handover the default entry point for
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booting kernel in x86 efi platform so that linux command works in the
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same way to linuxefi. This can also reduce the complexity of providing
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general grub configuation for x86 system due to the linux command may
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not be available in signed image for UEFI Secure Boot and linuxefi is
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not available for leagcy bios booting.
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Signed-off-by: Michael Chang <mchang@suse.com>
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---
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grub-core/Makefile.core.def | 6 ++++--
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grub-core/gensyminfo.sh.in | 3 +++
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grub-core/loader/i386/efi/linux.c | 17 +++++++++++++----
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3 files changed, 20 insertions(+), 6 deletions(-)
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diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
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index 6045da47b..3ea9dace0 100644
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--- a/grub-core/Makefile.core.def
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+++ b/grub-core/Makefile.core.def
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@@ -1773,7 +1773,9 @@ module = {
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module = {
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name = linux;
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- x86 = loader/i386/linux.c;
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+ i386_pc = loader/i386/linux.c;
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+ i386_efi = loader/i386/efi/linux.c;
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+ x86_64_efi = loader/i386/efi/linux.c;
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i386_xen_pvh = loader/i386/linux.c;
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xen = loader/i386/xen.c;
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i386_pc = lib/i386/pc/vesa_modes_table.c;
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@@ -1852,7 +1854,7 @@ module = {
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module = {
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name = linuxefi;
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- efi = loader/i386/efi/linux.c;
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+ efi = lib/fake_module.c;
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enable = i386_efi;
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enable = x86_64_efi;
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};
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diff --git a/grub-core/gensyminfo.sh.in b/grub-core/gensyminfo.sh.in
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index 9bc767532..098de9258 100644
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--- a/grub-core/gensyminfo.sh.in
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+++ b/grub-core/gensyminfo.sh.in
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@@ -35,3 +35,6 @@ fi
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# Print all undefined symbols used by module
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@TARGET_NM@ -u @TARGET_NMFLAGS_MINUS_P@ -p $module | sed "s@^\([^ ]*\).*@undefined $modname \1@g"
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+
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+# Specify linuxefi module should load default linux
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+test "$modname" = "linuxefi" && echo "undefined $modname grub_initrd_init" || true
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diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
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index 8017e8c05..3f6d51519 100644
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--- a/grub-core/loader/i386/efi/linux.c
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+++ b/grub-core/loader/i386/efi/linux.c
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@@ -347,20 +347,29 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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}
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static grub_command_t cmd_linux, cmd_initrd;
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+static grub_command_t cmd_linuxefi, cmd_initrdefi;
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-GRUB_MOD_INIT(linuxefi)
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+GRUB_MOD_INIT(linux)
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{
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- cmd_linux =
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+ cmd_linuxefi =
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grub_register_command ("linuxefi", grub_cmd_linux,
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0, N_("Load Linux."));
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- cmd_initrd =
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+ cmd_initrdefi =
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grub_register_command ("initrdefi", grub_cmd_initrd,
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0, N_("Load initrd."));
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+ cmd_linux =
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+ grub_register_command ("linux", grub_cmd_linux,
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+ 0, N_("Load Linux."));
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+ cmd_initrd =
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+ grub_register_command ("initrd", grub_cmd_initrd,
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+ 0, N_("Load initrd."));
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my_mod = mod;
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}
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-GRUB_MOD_FINI(linuxefi)
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+GRUB_MOD_FINI(linux)
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{
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+ grub_unregister_command (cmd_linuxefi);
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+ grub_unregister_command (cmd_initrdefi);
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grub_unregister_command (cmd_linux);
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grub_unregister_command (cmd_initrd);
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}
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--
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2.26.2
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@ -1,3 +1,9 @@
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-------------------------------------------------------------------
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Wed Sep 9 08:10:45 UTC 2020 - Michael Chang <mchang@suse.com>
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- Make efi hand off the default entry point of the linux command (bsc#1176134)
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* 0001-efi-linux-provide-linux-command.patch
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-------------------------------------------------------------------
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Thu Aug 27 06:58:37 UTC 2020 - Michael Chang <mchang@suse.com>
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@ -331,6 +331,7 @@ Patch717: 0001-ieee1275-powerpc-implements-fibre-channel-discovery-.patch
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Patch718: 0002-ieee1275-powerpc-enables-device-mapper-discovery.patch
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Patch719: 0001-Unify-the-check-to-enable-btrfs-relative-path.patch
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Patch720: 0001-shim_lock-Disable-GRUB_VERIFY_FLAGS_DEFER_AUTH-if-se.patch
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Patch721: 0001-efi-linux-provide-linux-command.patch
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Requires: gettext-runtime
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%if 0%{?suse_version} >= 1140
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@ -653,6 +654,7 @@ swap partition while in resuming
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%patch718 -p1
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%patch719 -p1
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%patch720 -p1
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%patch721 -p1
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%build
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# collect evidence to debug spurious build failure on SLE15
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