Re: x86/bugs: KVM: Add support for SRSO_MSR_FIX, back for moar

Borislav Petkov
2025-05-05T15:47:57Z

On Mon, May 05, 2025 at 03:40:20PM +0000, Kaplan, David wrote:
> Almost. My thought was that kvm_run could do something like:
>
> If (!this_cpu_read(bp_spec_reduce_is_set)) {
> wrmsrl to set BP_SEC_REDUCE
> this_cpu_write(bp_spec_reduce_is_set, 1)
> }

That's what I meant too. :-)

--
Regards/Gruss,
Boris.