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authorZhang Yanfei <zhangyanfei@cn.fujitsu.com>2012-12-06 19:40:47 +0400
committerGleb Natapov <gleb@redhat.com>2012-12-06 20:25:36 +0400
commitf23d1f4a116038c68df224deae6718fde87d8f0d (patch)
tree72d414b6fddf5b726559fba66d2f1d7ffc21de7b /arch/x86/include
parentc21934632549910188fb5cf40e79033f27a0741b (diff)
downloadlinux-f23d1f4a116038c68df224deae6718fde87d8f0d.tar.xz
x86/kexec: VMCLEAR VMCSs loaded on all cpus if necessary
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>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/kexec.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index 317ff1703d0b..28feeba2fdd6 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -163,6 +163,8 @@ struct kimage_arch {
};
#endif
+extern void (*crash_vmclear_loaded_vmcss)(void);
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_KEXEC_H */