From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
Wire up TDX PV report fatal error hypercall to KVM_SYSTEM_EVENT_CRASH KVM
exit event.
Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
---
arch/x86/kvm/vmx/tdx.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c
index 123d4322da99..4d668a6c7dc9 100644
--- a/arch/x86/kvm/vmx/tdx.c
+++ b/arch/x86/kvm/vmx/tdx.c
@@ -1157,6 +1157,15 @@ static int tdx_emulate_wrmsr(struct kvm_vcpu *vcpu)
return 1;
}
+static int tdx_report_fatal_error(struct kvm_vcpu *vcpu)
+{
+ /* Exit to userspace device model for teardown. */
+ vcpu->run->exit_reason = KVM_EXIT_SYSTEM_EVENT;
+ vcpu->run->system_event.type = KVM_SYSTEM_EVENT_CRASH;
+ vcpu->run->system_event.flags = tdvmcall_p1_read(vcpu);
+ return 0;
+}
+
static int handle_tdvmcall(struct kvm_vcpu *vcpu)
{
struct vcpu_tdx *tdx = to_tdx(vcpu);
@@ -1180,6 +1189,8 @@ static int handle_tdvmcall(struct kvm_vcpu *vcpu)
return tdx_emulate_rdmsr(vcpu);
case EXIT_REASON_MSR_WRITE:
return tdx_emulate_wrmsr(vcpu);
+ case TDG_VP_VMCALL_REPORT_FATAL_ERROR:
+ return tdx_report_fatal_error(vcpu);
default:
break;
}
--
2.25.1
