x86/kexec: VMCLEAR VMCSs loaded on all cpus if necessary

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This patch provides a way to VMCLEAR VMCSs related to guests
on all cpus before executing the VMXOFF when doing kdump. This
is used to ensure the VMCSs in the vmcore updated and
non-corrupted.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>

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Zhang Yanfei 2012-12-06 23:40:47 +08:00 • committed by Gleb Natapov

parent c219346325

commit f23d1f4a11

2 changed files with 34 additions and 0 deletions

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2

arch/x86/include/asm/kexec.h

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32

arch/x86/kernel/crash.c

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