Messages in this thread | | | From | Jim Mattson <> | Date | Wed, 8 Dec 2021 20:40:16 -0800 | Subject | Re: [PATCH v2 6/6] KVM: x86: Update vPMCs when retiring branch instructions |
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On Mon, Nov 29, 2021 at 11:42 PM Like Xu <like.xu.linux@gmail.com> wrote: > > From: Jim Mattson <jmattson@google.com> > > When KVM retires a guest branch instruction through emulation, > increment any vPMCs that are configured to monitor "branch > instructions retired," and update the sample period of those counters > so that they will overflow at the right time. > > Signed-off-by: Eric Hankland <ehankland@google.com> > [jmattson: > - Split the code to increment "branch instructions retired" into a > separate commit. > - Moved/consolidated the calls to kvm_pmu_trigger_event() in the > emulation of VMLAUNCH/VMRESUME to accommodate the evolution of > that code. > ] > Fixes: f5132b01386b ("KVM: Expose a version 2 architectural PMU to a guests") > Signed-off-by: Jim Mattson <jmattson@google.com>
I'm not sure if this is appropriate, but...
Reviewed-by: Jim Mattson <jmattson@google.com>
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