On Fri, 2023-09-22 at 15:00 +0000, Paul Durrant wrote: > From: Paul Durrant <pdurrant@xxxxxxxxxx> > > If the guest does not explicitly set the GPA of vcpu_info structure in > memory then, for guests with 32 vCPUs or fewer, the vcpu_info embedded > in the shared_info page may be used. As described in a previous commit, > the shared_info page is an overlay at a fixed HVA within the VMM, so in > this case it also more optimal to activate the vcpu_info cache with a > fixed HVA to avoid unnecessary invalidation if the guest memory layout > is modified. > > Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx> Reviewed-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
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