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kvm, x86: ignore SRAO only when MCG_SER_P is available

PATCH In review Jin Dongming 1 participant 1 message Oct 14, 2010 KVM

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Jin Dongming

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PATCH 1/11 kvm, x86: ignore SRAO only when MCG_SER_P is available

And restruct this block to call kvm_mce_in_exception() only when it is required.

Signed-off-by Hidetoshi Seto <[email protected]>
Tested-by Jin Dongming <[email protected]>
---
 qemu-kvm.c |   15 +++++++++------
 1 files changed, 9 insertions(+), 6 deletions(-)
qemu-kvm.c +9 -6
index e78d850..6f62973 100644
@@ -1903,12 +1903,15 @@ static void kvm_do_inject_x86_mce(void *_data)
     struct kvm_x86_mce_data *data = _data;
     int r;
 
-    /* If there is an MCE excpetion being processed, ignore this SRAO MCE */
-    r = kvm_mce_in_exception(data->env);
-    if (r == -1) {
-        fprintf(stderr, "Failed to get MCE status\n");
-    } else if (r && !(data->mce->status & MCI_STATUS_AR)) {
-        return;
+    /* If there is an MCE exception being processed, ignore this SRAO MCE */
+    if ((data->env->mcg_cap & MCG_SER_P) &&
+        !(data->mce->status & MCI_STATUS_AR)) {
+        r = kvm_mce_in_exception(data->env);
+        if (r == -1) {
+            fprintf(stderr, "Failed to get MCE status\n");
+        } else if (r) {
+            return;
+        }
     }
     r = kvm_set_mce(data->env, data->mce);
     if (r < 0) {
Signature · 1 line
1.7.1.1