Commit c3b86e61 authored by Michael Roth's avatar Michael Roth Committed by Borislav Petkov (AMD)
Browse files

x86/cpufeatures: Enable/unmask SEV-SNP CPU feature 



With all the required host changes in place, it should now be possible
to initialize SNP-related MSR bits, set up RMP table enforcement, and
initialize SNP support in firmware while maintaining legacy support for
SEV/SEV-ES guests. Go ahead and enable the SNP feature now.

Signed-off-by: default avatarMichael Roth <michael.roth@amd.com>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240126041126.1927228-23-michael.roth@amd.com
parent 75253db4

arch/x86/include/asm/disabled-features.h

+4 −0
Original line number Diff line number Diff line
@@ -117,7 +117,11 @@ 
#define DISABLE_IBT	(1 << (X86_FEATURE_IBT & 31))

#endif



#ifdef CONFIG_KVM_AMD_SEV

#define DISABLE_SEV_SNP		0

#else

#define DISABLE_SEV_SNP		(1 << (X86_FEATURE_SEV_SNP & 31))

#endif



/*

 * Make sure to add features to the correct mask