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-rw-r--r--arch/x86/kvm/svm/svm.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 310de05d2479..18a46847bffc 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -2038,11 +2038,16 @@ static int io_interception(struct vcpu_svm *svm)
++svm->vcpu.stat.io_exits;
string = (io_info & SVM_IOIO_STR_MASK) != 0;
in = (io_info & SVM_IOIO_TYPE_MASK) != 0;
- if (string)
- return kvm_emulate_instruction(vcpu, 0);
-
port = io_info >> 16;
size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT;
+
+ if (string) {
+ if (sev_es_guest(vcpu->kvm))
+ return sev_es_string_io(svm, size, port, in);
+ else
+ return kvm_emulate_instruction(vcpu, 0);
+ }
+
svm->next_rip = svm->vmcb->control.exit_info_2;
return kvm_fast_pio(&svm->vcpu, size, port, in);