Re: [PATCH 6.6.y] KVM: SVM: Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2

On Thu, Oct 16, 2025, Sasha Levin wrote:

From: Sean Christopherson seanjc@google.com

[ Upstream commit 68e61f6fd65610e73b17882f86fedfd784d99229 ]

Emulate PERF_CNTR_GLOBAL_STATUS_SET when PerfMonV2 is enumerated to the guest, as the MSR is supposed to exist in all AMD v2 PMUs.

Fixes: 4a2771895ca6 ("KVM: x86/svm/pmu: Add AMD PerfMonV2 support") Cc: stable@vger.kernel.org Cc: Sandipan Das sandipan.das@amd.com Link: https://lore.kernel.org/r/20250711172746.1579423-1-seanjc@google.com Signed-off-by: Sean Christopherson seanjc@google.com [ changed global_status_rsvd field to global_status_mask ] Signed-off-by: Sasha Levin sashal@kernel.org

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Acked-by: Sean Christopherson seanjc@google.com