[Qemu-devel] [PATCH 2/2 V7] qemu,qmp: add inject-nmi qmp command

[Lai Jiangshan]

From: Lai Jiangshan <address@hidden>
Date: Mon, 7 Mar 2011 17:05:15 +0800
Subject: [PATCH 2/2] qemu,qmp: add inject-nmi qmp command

inject-nmi command injects an NMI on all CPUs of guest.
It is only supported for x86 guest currently, it will
returns "Unsupported" error for non-x86 guest.

---
 hmp-commands.hx |    2 +-
 monitor.c       |   18 +++++++++++++++++-
 qmp-commands.hx |   29 +++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/hmp-commands.hx b/hmp-commands.hx
index 372bef4..8aea56c 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -743,7 +743,7 @@ ETEXI
         .args_type  = "cpu_index:i",
         .params     = "cpu",
         .help       = "inject an NMI on the given CPU",
-        .mhandler.cmd = do_inject_nmi,
+        .mhandler.cmd = do_inject_nmi_cpu,
     },
 #endif
 STEXI
diff --git a/monitor.c b/monitor.c
index 22ae3bb..aebcc0c 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2555,7 +2555,7 @@ static void do_wav_capture(Monitor *mon, const QDict 
*qdict)
 #endif
 
 #if defined(TARGET_I386)
-static void do_inject_nmi(Monitor *mon, const QDict *qdict)
+static void do_inject_nmi_cpu(Monitor *mon, const QDict *qdict)
 {
     CPUState *env;
     int cpu_index = qdict_get_int(qdict, "cpu_index");
@@ -2566,6 +2566,22 @@ static void do_inject_nmi(Monitor *mon, const QDict 
*qdict)
             break;
         }
 }
+
+static int do_inject_nmi(Monitor *mon, const QDict *qdict, QObject **ret_data)
+{
+    CPUState *env;
+
+    for (env = first_cpu; env != NULL; env = env->next_cpu)
+        cpu_interrupt(env, CPU_INTERRUPT_NMI);
+
+    return 0;
+}
+#else
+static int do_inject_nmi(Monitor *mon, const QDict *qdict, QObject **ret_data)
+{
+    qerror_report(QERR_UNSUPPORTED);
+    return -1;
+}
 #endif
 
 static void do_info_status_print(Monitor *mon, const QObject *data)
diff --git a/qmp-commands.hx b/qmp-commands.hx
index df40a3d..51f479e 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -430,6 +430,35 @@ Example:
 EQMP
 
     {
+        .name       = "inject-nmi",
+        .args_type  = "",
+        .params     = "",
+        .help       = "Inject an NMI on guest.\n"
+                      "Returns \"Unsupported\" error when the guest does"
+                      "not support NMI injection",
+        .user_print = monitor_user_noop,
+        .mhandler.cmd_new = do_inject_nmi,
+    },
+
+SQMP
+inject-nmi
+----------
+
+Inject an NMI on guest.
+
+Arguments: None.
+
+Example:
+
+-> { "execute": "inject-nmi" }
+<- { "return": {} }
+
+Note: inject-nmi is only supported for x86 guest currently, it will
+      returns "Unsupported" error for non-x86 guest.
+
+EQMP
+
+    {
         .name       = "migrate",
         .args_type  = "detach:-d,blk:-b,inc:-i,uri:s",
         .params     = "[-d] [-b] [-i] uri",
-- 
1.7.4