diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/vmx/tdx.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index d1edf11c18fe..f833aae03d3f 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -15,6 +15,7 @@ #include "mmu/spte.h" #include "common.h" #include "posted_intr.h" +#include "irq.h" #include <trace/events/kvm.h> #include "trace.h" @@ -644,8 +645,12 @@ int tdx_vcpu_create(struct kvm_vcpu *vcpu) if (kvm_tdx->state != TD_STATE_INITIALIZED) return -EIO; - /* TDX module mandates APICv, which requires an in-kernel local APIC. */ - if (!lapic_in_kernel(vcpu)) + /* + * TDX module mandates APICv, which requires an in-kernel local APIC. + * Disallow an in-kernel I/O APIC, because level-triggered interrupts + * and thus the I/O APIC as a whole can't be faithfully emulated in KVM. + */ + if (!irqchip_split(vcpu->kvm)) return -EINVAL; fpstate_set_confidential(&vcpu->arch.guest_fpu); |