Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-4.1-pull-request...

[mirror_qemu.git] / accel / accel.c

diff --git a/accel/accel.c b/accel/accel.c
index 966b2d8f536ce6065f677c0a5188781deb1adf3e..5fa31717b48206633ce7db4a62400f2436442ebd 100644 (file)
--- a/accel/accel.c
+++ b/accel/accel.c
@@ -34,6 +34,7 @@
 #include "qom/object.h"
 #include "qemu/error-report.h"
 #include "qemu/option.h"
+#include "qapi/error.h"
 
 static const TypeInfo accel_type = {
     .name = TYPE_ACCEL,
@@ -64,11 +65,13 @@ static int accel_init_machine(AccelClass *acc, MachineState *ms)
         ms->accelerator = NULL;
         *(acc->allowed) = false;
         object_unref(OBJECT(accel));
+    } else {
+        object_set_accelerator_compat_props(acc->compat_props);
     }
     return ret;
 }
 
-void configure_accelerator(MachineState *ms)
+void configure_accelerator(MachineState *ms, const char *progname)
 {
     const char *accel;
     char **accel_list, **tmp;
@@ -79,8 +82,22 @@ void configure_accelerator(MachineState *ms)
 
     accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
     if (accel == NULL) {
-        /* Use the default "accelerator", tcg */
-        accel = "tcg";
+        /* Select the default accelerator */
+        int pnlen = strlen(progname);
+        if (pnlen >= 3 && g_str_equal(&progname[pnlen - 3], "kvm")) {
+            /* If the program name ends with "kvm", we prefer KVM */
+            accel = "kvm:tcg";
+        } else {
+#if defined(CONFIG_TCG)
+            accel = "tcg";
+#elif defined(CONFIG_KVM)
+            accel = "kvm";
+#else
+            error_report("No accelerator selected and"
+                         " no default accelerator available");
+            exit(1);
+#endif
+        }
     }
 
     accel_list = g_strsplit(accel, ":", 0);
@@ -90,11 +107,6 @@ void configure_accelerator(MachineState *ms)
         if (!acc) {
             continue;
         }
-        if (acc->available && !acc->available()) {
-            printf("%s not supported for this target\n",
-                   acc->name);
-            continue;
-        }
         ret = accel_init_machine(acc, ms);
         if (ret < 0) {
             init_failed = true;
@@ -118,12 +130,6 @@ void configure_accelerator(MachineState *ms)
     }
 }
 
-void accel_register_compat_props(AccelState *accel)
-{
-    AccelClass *class = ACCEL_GET_CLASS(accel);
-    register_compat_props_array(class->global_props);
-}
-
 void accel_setup_post(MachineState *ms)
 {
     AccelState *accel = ms->accelerator;