Messages in this thread Patch in this message | | | From | Eduardo Habkost <> | Subject | [PATCH 10/12] x86: cpu_emergency_svm_disable() function | Date | Mon, 17 Nov 2008 19:03:22 -0200 |
| |
This function can be used by the reboot or kdump code to forcibly disable SVM on the CPU.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> --- arch/x86/include/asm/virtext.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/virtext.h b/arch/x86/include/asm/virtext.h index 2cfe363..5936362 100644 --- a/arch/x86/include/asm/virtext.h +++ b/arch/x86/include/asm/virtext.h @@ -121,4 +121,12 @@ static inline void cpu_svm_disable(void) wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK); } +/** Makes sure SVM is disabled, if it is supported on the CPU + */ +static inline void cpu_emergency_svm_disable(void) +{ + if (cpu_has_svm(NULL)) + cpu_svm_disable(); +} + #endif /* _ASM_X86_VIRTEX_H */ -- 1.5.5.GIT
| |