subject:"\[PATCH v2 1\/2\] x86\/cpufeatures\: Add the Virtual SPEC_CTRL feature"

Re: [PATCH v2 1/2] x86/cpufeatures: Add the Virtual SPEC_CTRL feature

2020-12-29 Thread Borislav Petkov

On Tue, Dec 22, 2020 at 04:31:32PM -0600, Babu Moger wrote: > Newer AMD processors have a feature to virtualize the use of the > SPEC_CTRL MSR. Presence of this feature is indicated via CPUID > function 0x800A_EDX[20]: GuestSpecCtrl. When preset, the SPEC_CTRL > MSR is automatically virtualized

[PATCH v2 1/2] x86/cpufeatures: Add the Virtual SPEC_CTRL feature

2020-12-22 Thread Babu Moger

Newer AMD processors have a feature to virtualize the use of the SPEC_CTRL MSR. Presence of this feature is indicated via CPUID function 0x800A_EDX[20]: GuestSpecCtrl. When preset, the SPEC_CTRL MSR is automatically virtualized. Signed-off-by: Babu Moger --- arch/x86/include/asm/cpufeatures.