From: Maxim Levitsky Date: Tue, 14 Sep 2021 15:48:15 +0000 (+0300) Subject: KVM: x86: nSVM: don't copy pause related settings X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0226a45c468f72fe5e085d1cad571c42bff06cad;p=linux.git KVM: x86: nSVM: don't copy pause related settings According to the SDM, the CPU never modifies these settings. It loads them on VM entry and updates an internal copy instead. Also don't load them from the vmcb12 as we don't expose these features to the nested guest yet. Signed-off-by: Maxim Levitsky Message-Id: <20210914154825.104886-5-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini --- diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c index 510b833cbd399..ec3e926b20dd2 100644 --- a/arch/x86/kvm/svm/nested.c +++ b/arch/x86/kvm/svm/nested.c @@ -550,9 +550,6 @@ static void nested_vmcb02_prepare_control(struct vcpu_svm *svm) svm->vmcb->control.event_inj = svm->nested.ctl.event_inj; svm->vmcb->control.event_inj_err = svm->nested.ctl.event_inj_err; - svm->vmcb->control.pause_filter_count = svm->nested.ctl.pause_filter_count; - svm->vmcb->control.pause_filter_thresh = svm->nested.ctl.pause_filter_thresh; - nested_svm_transition_tlb_flush(vcpu); /* Enter Guest-Mode */ @@ -810,11 +807,6 @@ int nested_svm_vmexit(struct vcpu_svm *svm) vmcb12->control.event_inj = svm->nested.ctl.event_inj; vmcb12->control.event_inj_err = svm->nested.ctl.event_inj_err; - vmcb12->control.pause_filter_count = - svm->vmcb->control.pause_filter_count; - vmcb12->control.pause_filter_thresh = - svm->vmcb->control.pause_filter_thresh; - nested_svm_copy_common_state(svm->nested.vmcb02.ptr, svm->vmcb01.ptr); svm_switch_vmcb(svm, &svm->vmcb01);