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| author | Sean Christopherson <seanjc@google.com> | 2023-08-15 22:36:50 +0200 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-08-17 20:43:30 +0200 |
| commit | 59d67fc1f0dbb5ee8841d62140efe0fdc4fbabf5 (patch) | |
| tree | 81d2468361bdc00f52a5cff946f0c1b73eb5db70 /arch/x86/kvm/svm/nested.c | |
| parent | KVM: nSVM: Use KVM-governed feature framework to track "LBRv enabled" (diff) | |
| download | linux-59d67fc1f0dbb5ee8841d62140efe0fdc4fbabf5.tar.xz linux-59d67fc1f0dbb5ee8841d62140efe0fdc4fbabf5.zip | |
KVM: nSVM: Use KVM-governed feature framework to track "Pause Filter enabled"
Track "Pause Filtering is exposed to L1" via governed feature flags
instead of using dedicated bits/flags in vcpu_svm.
No functional change intended.
Reviewed-by: Yuan Yao <yuan.yao@intel.com>
Link: https://lore.kernel.org/r/20230815203653.519297-13-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/svm/nested.c')
| -rw-r--r-- | arch/x86/kvm/svm/nested.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c index f50f74b1a04e..ac03b2bc5b2c 100644 --- a/arch/x86/kvm/svm/nested.c +++ b/arch/x86/kvm/svm/nested.c @@ -743,8 +743,14 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm, if (!nested_vmcb_needs_vls_intercept(svm)) vmcb02->control.virt_ext |= VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK; - pause_count12 = svm->pause_filter_enabled ? svm->nested.ctl.pause_filter_count : 0; - pause_thresh12 = svm->pause_threshold_enabled ? svm->nested.ctl.pause_filter_thresh : 0; + if (guest_can_use(vcpu, X86_FEATURE_PAUSEFILTER)) + pause_count12 = svm->nested.ctl.pause_filter_count; + else + pause_count12 = 0; + if (guest_can_use(vcpu, X86_FEATURE_PFTHRESHOLD)) + pause_thresh12 = svm->nested.ctl.pause_filter_thresh; + else + pause_thresh12 = 0; if (kvm_pause_in_guest(svm->vcpu.kvm)) { /* use guest values since host doesn't intercept PAUSE */ vmcb02->control.pause_filter_count = pause_count12; |