Patchwork [01/11] kvm, x86: ignore SRAO only when MCG_SER_P is available

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Submitter Jin Dongming
Date Oct. 14, 2010, 8:41 a.m.
Message ID <4CB6C21F.8000303@np.css.fujitsu.com>
Download mbox | patch
Permalink /patch/67791/
State New
Headers show

Comments

Jin Dongming - Oct. 14, 2010, 8:41 a.m.
And restruct this block to call kvm_mce_in_exception() only when it is
required.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Tested-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
---
 qemu-kvm.c |   15 +++++++++------
 1 files changed, 9 insertions(+), 6 deletions(-)

Patch

diff --git a/qemu-kvm.c b/qemu-kvm.c
index e78d850..6f62973 100644
--- a/qemu-kvm.c
+++ b/qemu-kvm.c
@@ -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) {