1 files changed, 37 insertions, 10 deletions

diff --git a/target/i386/helper.c b/target/i386/helper.c
index 70be53e2c3..32fa21a7bb 100644
--- a/target/i386/helper.c
+++ b/target/i386/helper.c
@@ -18,6 +18,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qapi/qapi-events-run-state.h"
 #include "cpu.h"
 #include "exec/exec-all.h"
 #include "qemu/qemu-print.h"
@@ -851,22 +852,35 @@ typedef struct MCEInjectionParams {
     int flags;
 } MCEInjectionParams;
 
+static void emit_guest_memory_failure(MemoryFailureAction action, bool ar,
+                                      bool recursive)
+{
+    MemoryFailureFlags mff = {.action_required = ar, .recursive = recursive};
+
+    qapi_event_send_memory_failure(MEMORY_FAILURE_RECIPIENT_GUEST, action,
+                                   &mff);
+}
+
 static void do_inject_x86_mce(CPUState *cs, run_on_cpu_data data)
 {
     MCEInjectionParams *params = data.host_ptr;
     X86CPU *cpu = X86_CPU(cs);
     CPUX86State *cenv = &cpu->env;
     uint64_t *banks = cenv->mce_banks + 4 * params->bank;
+    g_autofree char *msg = NULL;
+    bool need_reset = false;
+    bool recursive;
+    bool ar = !!(params->status & MCI_STATUS_AR);
 
     cpu_synchronize_state(cs);
+    recursive = !!(cenv->mcg_status & MCG_STATUS_MCIP);
 
     /*
      * If there is an MCE exception being processed, ignore this SRAO MCE
      * unless unconditional injection was requested.
      */
-    if (!(params->flags & MCE_INJECT_UNCOND_AO)
-        && !(params->status & MCI_STATUS_AR)
-        && (cenv->mcg_status & MCG_STATUS_MCIP)) {
+    if (!(params->flags & MCE_INJECT_UNCOND_AO) && !ar && recursive) {
+        emit_guest_memory_failure(MEMORY_FAILURE_ACTION_IGNORE, ar, recursive);
         return;
     }
 
@@ -894,16 +908,27 @@ static void do_inject_x86_mce(CPUState *cs, run_on_cpu_data data)
             return;
         }
 
-        if ((cenv->mcg_status & MCG_STATUS_MCIP) ||
-            !(cenv->cr[4] & CR4_MCE_MASK)) {
-            monitor_printf(params->mon,
-                           "CPU %d: Previous MCE still in progress, raising"
-                           " triple fault\n",
-                           cs->cpu_index);
-            qemu_log_mask(CPU_LOG_RESET, "Triple fault\n");
+        if (recursive) {
+            need_reset = true;
+            msg = g_strdup_printf("CPU %d: Previous MCE still in progress, "
+                                  "raising triple fault", cs->cpu_index);
+        }
+
+        if (!(cenv->cr[4] & CR4_MCE_MASK)) {
+            need_reset = true;
+            msg = g_strdup_printf("CPU %d: MCE capability is not enabled, "
+                                  "raising triple fault", cs->cpu_index);
+        }
+
+        if (need_reset) {
+            emit_guest_memory_failure(MEMORY_FAILURE_ACTION_RESET, ar,
+                                      recursive);
+            monitor_printf(params->mon, "%s", msg);
+            qemu_log_mask(CPU_LOG_RESET, "%s\n", msg);
             qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
             return;
         }
+
         if (banks[1] & MCI_STATUS_VAL) {
             params->status |= MCI_STATUS_OVER;
         }
@@ -923,6 +948,8 @@ static void do_inject_x86_mce(CPUState *cs, run_on_cpu_data data)
     } else {
         banks[1] |= MCI_STATUS_OVER;
     }
+
+    emit_guest_memory_failure(MEMORY_FAILURE_ACTION_INJECT, ar, recursive);
 }
 
 void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,