[MODERATED] Re: [patch V6 05/14] MDS basics 5

On Fri, Mar 01, 2019 at 10:47:43PM +0100, speck for Thomas Gleixner wrote:
> From: Andi Kleen <[email protected]>
> Subject: [patch V6 05/14] x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
> 
> X86_FEATURE_MD_CLEAR is a new CPUID bit which is set when microcode
> provides the mechanism to invoke a flush of various exploitable CPU buffers
> by invoking the VERW instruction.
> 
> Hand it through to guests so they can adjust their mitigations.
> 
> This also requires corresponding qemu changes, which are available
> separately.
> 
> [ tglx: Massaged changelog ]
> 
> Signed-off-by: Andi Kleen <[email protected]>
> Signed-off-by: Thomas Gleixner <[email protected]>
> Reviewed-by: Borislav Petkov <[email protected]>
> Reviewed-by: Greg Kroah-Hartman <[email protected]>

Reviewed-by: Frederic Weisbecker <[email protected]>