From: Sean Christopherson <[email protected]> Add a flag to disable IRQ injection, which is not supported by TDX.
Signed-off-by: Sean Christopherson <[email protected]> --- arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/x86.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index e687a8bd46ad..e8180a1fe610 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -995,6 +995,7 @@ struct kvm_arch { } msr_filter; bool guest_state_protected; + bool irq_injection_disallowed; struct kvm_pmu_event_filter *pmu_event_filter; struct task_struct *nx_lpage_recovery_thread; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 6154abecd546..ec66d5d53a1a 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4041,7 +4041,8 @@ static int kvm_vcpu_ready_for_interrupt_injection(struct kvm_vcpu *vcpu) static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq) { - if (irq->irq >= KVM_NR_INTERRUPTS) + if (irq->irq >= KVM_NR_INTERRUPTS || + vcpu->kvm->arch.irq_injection_disallowed) return -EINVAL; if (!irqchip_in_kernel(vcpu->kvm)) { @@ -8170,6 +8171,7 @@ static int emulator_fix_hypercall(struct x86_emulate_ctxt *ctxt) static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu) { return vcpu->run->request_interrupt_window && + !vcpu->kvm->arch.irq_injection_disallowed && likely(!pic_in_kernel(vcpu->kvm)); } -- 2.17.1
