diff options
| author |   Lianbo Jiang <lijiang@redhat.com> | 2019-11-08 17:00:26 +0800 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2019-11-14 18:24:43 +0100 |
| commit | 7c321eb2b843bf25946100b7e2de4054f71ec068 (patch) | |
| tree | 8660fda9abb2769fab5d5b5968cd41559871b68a /arch/x86/include/asm/purgatory.h | |
| parent | x86/kdump: Always reserve the low 1M when the crashkernel option is specified (diff) | |
| download | linux-dev-7c321eb2b843bf25946100b7e2de4054f71ec068.tar.xz linux-dev-7c321eb2b843bf25946100b7e2de4054f71ec068.zip | |
x86/kdump: Remove the backup region handling
When the crashkernel kernel command line option is specified, the low
1M memory will always be reserved now. Therefore, it's not necessary to
create a backup region anymore and also no need to copy the contents of
the first 640k to it.
Remove all the code related to handling that backup region.
[ bp: Massage commit message. ]
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: bhe@redhat.com
Cc: Dave Young <dyoung@redhat.com>
Cc: d.hatayama@fujitsu.com
Cc: dhowells@redhat.com
Cc: ebiederm@xmission.com
Cc: horms@verge.net.au
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jürgen Gross <jgross@suse.com>
Cc: kexec@lists.infradead.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: vgoyal@redhat.com
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191108090027.11082-3-lijiang@redhat.com
Diffstat (limited to 'arch/x86/include/asm/purgatory.h')
| -rw-r--r-- | arch/x86/include/asm/purgatory.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/x86/include/asm/purgatory.h b/arch/x86/include/asm/purgatory.h index 92c34e517da1..5528e9325049 100644 --- a/arch/x86/include/asm/purgatory.h +++ b/arch/x86/include/asm/purgatory.h @@ -6,16 +6,6 @@ #include <linux/purgatory.h> extern void purgatory(void); -/* - * These forward declarations serve two purposes: - * - * 1) Make sparse happy when checking arch/purgatory - * 2) Document that these are required to be global so the symbol - * lookup in kexec works - */ -extern unsigned long purgatory_backup_dest; -extern unsigned long purgatory_backup_src; -extern unsigned long purgatory_backup_sz; #endif /* __ASSEMBLY__ */ #endif /* _ASM_PURGATORY_H */ |