diff mbox series

[WIP,v2,07/14] KVM: x86: Implement memory fault exit for setup_vmgexit_scratch

Message ID 20230315021738.1151386-8-amoorthy@google.com (mailing list archive)
State New, archived
Headers show
Series Avoiding slow get-user-pages via memory fault exit | expand

Commit Message

Anish Moorthy March 15, 2023, 2:17 a.m. UTC 
---
 arch/x86/kvm/svm/sev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index c25aeb550cd97..c042d385350de 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -2683,7 +2683,9 @@  static int setup_vmgexit_scratch(struct vcpu_svm *svm, bool sync, u64 len)
 			pr_err("vmgexit: kvm_read_guest for scratch area failed\n");
 
 			kvfree(scratch_va);
-			return -EFAULT;
+			return kvm_memfault_exit_or_efault(
+				&svm->vcpu, scratch_gpa_beg, len,
+				KVM_MEMFAULT_REASON_UNKNOWN);
 		}
 
 		/*