Re: [PATCH] KVM: x86: Expose Predictive Store Forwarding Disable

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On Mon, Sep 27, 2021 at 01:13:26PM +0200, Paolo Bonzini wrote:
> Because the guest kernel needs to know which MSRs to write when you touch
> the SSBD prctl, so that PSFD is properly disabled *inside the guest*.

It already knows which - the same one which disables SSB. PSF is
disabled *together* with SSB, for now...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette



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