[MODERATED] Re: [patch V6 08/14] MDS basics 8

On Fri, Mar 01, 2019 at 10:47:46PM +0100, speck for Thomas Gleixner wrote:
> CPUs which are affected by L1TF and MDS mitigate MDS with the L1D Flush on
> VMENTER when updated microcode is installed.
> 
> If a CPU is not affected by L1TF or if the L1D Flush is not in use, then
> MDS mitigation needs to be invoked explicit.

				     explicitly.

> 
> For these cases, follow the host mitigation state and invoke the MDS
> mitigation before VMENTER.
> 
> Signed-off-by: Thomas Gleixner <[email protected]>
> Reviewed-by: Greg Kroah-Hartman <[email protected]>
> ---
> V4 --> V5: Fix changelog
> ---
>  arch/x86/kernel/cpu/bugs.c |    1 +
>  arch/x86/kvm/vmx/vmx.c     |    2 ++
>  2 files changed, 3 insertions(+)

With that:

Reviewed-by: Borislav Petkov <[email protected]>

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--