Messages in this thread Patch in this message | | | From | isaku.yamahata@intel ... | Subject | [PATCH v7 070/102] KVM: TDX: complete interrupts after tdexit | Date | Mon, 27 Jun 2022 14:54:02 -0700 |
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From: Isaku Yamahata <isaku.yamahata@intel.com>
This corresponds to VMX __vmx_complete_interrupts(). Because TDX virtualize vAPIC, KVM only needs to care NMI injection.
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> --- arch/x86/kvm/vmx/tdx.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index 3d9898b677bc..c9cb9670f7cf 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -593,6 +593,14 @@ void tdx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) vcpu->kvm->vm_bugged = true; } +static void tdx_complete_interrupts(struct kvm_vcpu *vcpu) +{ + /* Avoid costly SEAMCALL if no nmi was injected */ + if (vcpu->arch.nmi_injected) + vcpu->arch.nmi_injected = td_management_read8(to_tdx(vcpu), + TD_VCPU_PEND_NMI); +} + struct tdx_uret_msr { u32 msr; unsigned int slot; @@ -661,6 +669,8 @@ fastpath_t tdx_vcpu_run(struct kvm_vcpu *vcpu) vcpu->arch.regs_avail &= ~VMX_REGS_LAZY_LOAD_SET; trace_kvm_exit(vcpu, KVM_ISA_VMX); + tdx_complete_interrupts(vcpu); + return EXIT_FASTPATH_NONE; } -- 2.25.1
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