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Commit 0f3e9eeb authored by Eduardo Habkost's avatar Eduardo Habkost Committed by Avi Kivity
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x86: cpu_emergency_svm_disable() function 



This function can be used by the reboot or kdump code to forcibly
disable SVM on the CPU.

Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 2c8dceeb

arch/x86/include/asm/virtext.h

+8 −0
Original line number Original line Diff line number Diff line
@@ -121,4 +121,12 @@ static inline void cpu_svm_disable(void) 
	wrmsrl(MSR_EFER, efer & ~MSR_EFER_SVME_MASK);

	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 */
 
#endif /* _ASM_X86_VIRTEX_H */