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| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-18 17:07:08 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-01 10:25:59 +0200 |
| commit | 18fc6c55d1f449ff57778a4003c838a79d62b5a8 (patch) | |
| tree | 14b7c539fad91fa9e35095ce8ef8b21dedaa049f /arch/x86/kvm/svm | |
| parent | KVM: nSVM: move MMU setup to nested_prepare_vmcb_control (diff) | |
| download | linux-18fc6c55d1f449ff57778a4003c838a79d62b5a8.tar.xz linux-18fc6c55d1f449ff57778a4003c838a79d62b5a8.zip | |
KVM: nSVM: clean up tsc_offset update
Use l1_tsc_offset to compute svm->vcpu.arch.tsc_offset and
svm->vmcb->control.tsc_offset, instead of relying on hsave.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm')
| -rw-r--r-- | arch/x86/kvm/svm/nested.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c index a85cc7376a82..5ca403a69148 100644 --- a/arch/x86/kvm/svm/nested.c +++ b/arch/x86/kvm/svm/nested.c @@ -241,8 +241,6 @@ static void load_nested_vmcb_control(struct vcpu_svm *svm, svm->nested.intercept_dr = control->intercept_dr; svm->nested.intercept_exceptions = control->intercept_exceptions; svm->nested.intercept = control->intercept; - - svm->vcpu.arch.tsc_offset += control->tsc_offset; } static void nested_prepare_vmcb_save(struct vcpu_svm *svm, struct vmcb *nested_vmcb) @@ -288,7 +286,8 @@ static void nested_prepare_vmcb_control(struct vcpu_svm *svm, struct vmcb *neste else svm->vcpu.arch.hflags &= ~HF_VINTR_MASK; - svm->vmcb->control.tsc_offset = svm->vcpu.arch.tsc_offset; + svm->vmcb->control.tsc_offset = svm->vcpu.arch.tsc_offset = + svm->vcpu.arch.l1_tsc_offset + nested_vmcb->control.tsc_offset; svm->vmcb->control.int_ctl = nested_vmcb->control.int_ctl | V_INTR_MASKING_MASK; svm->vmcb->control.virt_ext = nested_vmcb->control.virt_ext; @@ -553,7 +552,9 @@ int nested_svm_vmexit(struct vcpu_svm *svm) /* Restore the original control entries */ copy_vmcb_control_area(vmcb, hsave); - svm->vcpu.arch.tsc_offset = svm->vmcb->control.tsc_offset; + svm->vmcb->control.tsc_offset = svm->vcpu.arch.tsc_offset = + svm->vcpu.arch.l1_tsc_offset; + kvm_clear_exception_queue(&svm->vcpu); kvm_clear_interrupt_queue(&svm->vcpu); |