X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/422e0501a842fb4b3f42494f341707e809c3c6ad..e2f840163854ee5f666bc07db77bd88ac25b45bc:/balloon.c

diff --git a/balloon.c b/balloon.c
index 728bb707bf..1d720fff81 100644
--- a/balloon.c
+++ b/balloon.c
@@ -24,26 +24,41 @@
  * THE SOFTWARE.
  */
 
-#include "monitor/monitor.h"
+#include "qemu/osdep.h"
+#include "qemu-common.h"
 #include "exec/cpu-common.h"
 #include "sysemu/kvm.h"
 #include "sysemu/balloon.h"
-#include "trace.h"
+#include "trace-root.h"
 #include "qmp-commands.h"
+#include "qapi/qmp/qerror.h"
 #include "qapi/qmp/qjson.h"
 
 static QEMUBalloonEvent *balloon_event_fn;
 static QEMUBalloonStatus *balloon_stat_fn;
 static void *balloon_opaque;
+static bool balloon_inhibited;
 
-static bool have_ballon(Error **errp)
+bool qemu_balloon_is_inhibited(void)
+{
+    return balloon_inhibited;
+}
+
+void qemu_balloon_inhibit(bool state)
+{
+    balloon_inhibited = state;
+}
+
+static bool have_balloon(Error **errp)
 {
     if (kvm_enabled() && !kvm_has_sync_mmu()) {
-        error_set(errp, QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
+        error_set(errp, ERROR_CLASS_KVM_MISSING_CAP,
+                  "Using KVM without synchronous MMU, balloon unavailable");
         return false;
     }
     if (!balloon_event_fn) {
-        error_set(errp, QERR_DEVICE_NOT_ACTIVE, "balloon");
+        error_set(errp, ERROR_CLASS_DEVICE_NOT_ACTIVE,
+                  "No balloon device has been activated");
         return false;
     }
     return true;
@@ -56,7 +71,6 @@ int qemu_add_balloon_handler(QEMUBalloonEvent *event_func,
         /* We're already registered one balloon handler.  How many can
          * a guest really have?
          */
-        error_report("Another balloon device already registered");
         return -1;
     }
     balloon_event_fn = event_func;
@@ -79,7 +93,7 @@ BalloonInfo *qmp_query_balloon(Error **errp)
 {
     BalloonInfo *info;
 
-    if (!have_ballon(errp)) {
+    if (!have_balloon(errp)) {
         return NULL;
     }
 
@@ -90,12 +104,12 @@ BalloonInfo *qmp_query_balloon(Error **errp)
 
 void qmp_balloon(int64_t target, Error **errp)
 {
-    if (!have_ballon(errp)) {
+    if (!have_balloon(errp)) {
         return;
     }
 
     if (target <= 0) {
-        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "target", "a size");
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "target", "a size");
         return;
     }