Messages in this thread | | | Subject | Re: [PATCH v5 07/10] KVM: xen: allow vcpu_info to be mapped by fixed HVA | From | David Woodhouse <> | Date | Fri, 22 Sep 2023 17:10:32 +0100 |
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On Fri, 2023-09-22 at 15:00 +0000, Paul Durrant wrote: > From: Paul Durrant <pdurrant@amazon.com> > > 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@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> [unhandled content-type:application/pkcs7-signature] | |