x86, mce: broadcast mce depending on the cpu version

There is no reason why SRAO event received by the main thread
is the only one that being broadcasted.

According to the x86 ASDM vol.3A 15.10.4.1,
MCE signal is broadcast on processor version 06H_EH or later.

This change is required to handle SRAR in smp guests.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index b8139530285ffb91674c133f61876a39927b5fe7..9144f74e2d24de9daad0472471aa4330e49bb83b 100644 (file)
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -1636,6 +1636,28 @@ static void hardware_memory_error(void)
     exit(1);
 }
 
+#ifdef KVM_CAP_MCE
+static void kvm_mce_broadcast_rest(CPUState *env)
+{
+    CPUState *cenv;
+    int family, model, cpuver = env->cpuid_version;
+
+    family = (cpuver >> 8) & 0xf;
+    model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0xf);
+
+    /* Broadcast MCA signal for processor version 06H_EH and above */
+    if ((family == 6 && model >= 14) || family > 6) {
+        for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu) {
+            if (cenv == env) {
+                continue;
+            }
+            kvm_inject_x86_mce(cenv, 1, MCI_STATUS_VAL | MCI_STATUS_UC,
+                               MCG_STATUS_MCIP | MCG_STATUS_RIPV, 0, 0, 1);
+        }
+    }
+}
+#endif
+
 int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr)
 {
 #if defined(KVM_CAP_MCE)
@@ -1693,6 +1715,7 @@ int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr)
             fprintf(stderr, "kvm_set_mce: %s\n", strerror(errno));
             abort();
         }
+        kvm_mce_broadcast_rest(env);
     } else
 #endif
     {
@@ -1715,7 +1738,6 @@ int kvm_on_sigbus(int code, void *addr)
         void *vaddr;
         ram_addr_t ram_addr;
         target_phys_addr_t paddr;
-        CPUState *cenv;
 
         /* Hope we are lucky for AO MCE */
         vaddr = addr;
@@ -1731,10 +1753,7 @@ int kvm_on_sigbus(int code, void *addr)
         kvm_inject_x86_mce(first_cpu, 9, status,
                            MCG_STATUS_MCIP | MCG_STATUS_RIPV, paddr,
                            (MCM_ADDR_PHYS << 6) | 0xc, 1);
-        for (cenv = first_cpu->next_cpu; cenv != NULL; cenv = cenv->next_cpu) {
-            kvm_inject_x86_mce(cenv, 1, MCI_STATUS_VAL | MCI_STATUS_UC,
-                               MCG_STATUS_MCIP | MCG_STATUS_RIPV, 0, 0, 1);
-        }
+        kvm_mce_broadcast_rest(first_cpu);
     } else
 #endif
     {