KVM: x86/PVM: Add PVM_FAILED_VMENTRY_VECTOR exit reason handling

Jinrong Liang · Jinrong Liang · commit 64d788c46af5 · 2024-05-31T16:46:06.000+08:00
Introduce a condition in the pvm_get_syscall_exit_reason() to check for
PVM_FAILED_VMENTRY_VECTOR and provide the exit reason.

Suggested-by: Lai Jiangshan &lt;jiangshan.ljs@antgroup.com&gt;
Signed-off-by: Jinrong Liang &lt;cloudliang@tencent.com&gt;
diff --git a/arch/x86/kvm/pvm/pvm.c b/arch/x86/kvm/pvm/pvm.c
@@ -2455,6 +2455,8 @@ static u32 pvm_get_syscall_exit_reason(struct kvm_vcpu *vcpu)
 			return PVM_EXIT_REASONS_ERETU;
 		else if (rip == pvm->msr_rets_rip_plus2)
 			return PVM_EXIT_REASONS_ERETS;
+		else if (pvm->exit_vector == PVM_FAILED_VMENTRY_VECTOR)
+			return PVM_FAILED_VMENTRY_VECTOR;
 		else
 			return pvm_get_hypercall_exit_reason(vcpu);
 	}

Original file line number	Diff line number	Diff line change
`@@ -2455,6 +2455,8 @@ static u32 pvm_get_syscall_exit_reason(struct kvm_vcpu *vcpu)`
`2455`	`2455`	`return PVM_EXIT_REASONS_ERETU;`
`2456`	`2456`	`else if (rip == pvm->msr_rets_rip_plus2)`
`2457`	`2457`	`return PVM_EXIT_REASONS_ERETS;`
	`2458`	`+ else if (pvm->exit_vector == PVM_FAILED_VMENTRY_VECTOR)`
	`2459`	`+ return PVM_FAILED_VMENTRY_VECTOR;`
`2458`	`2460`	`else`
`2459`	`2461`	`return pvm_get_hypercall_exit_reason(vcpu);`
`2460`	`2462`	`}`