Re: [PATCH v6 5/5] x86/kvm: Avoid dynamic allocation of pvclock data when SEV is active

From: Borislav Petkov
Date: Tue Sep 11 2018 - 06:25:10 EST

On Tue, Sep 11, 2018 at 12:19:13PM +0200, Paolo Bonzini wrote:
> That's exactly what kvmclock is for, it provides a stable and
> synchronized clock on top of unsynchronized TSCs. But that's also why
> you need one struct per vCPU, at least in the synchronized case.


Why can't it be a single pointer to a struct pvclock_vsyscall_time_info
shared between all vCPUs?

Or does each vCPU write its own specific stuff into it so it has to be


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