Monitor: Return before exiting with 'quit'

[qemu.git] / vl.c

diff --git a/vl.c b/vl.c
index 4fb55b89e88e1db22872c4bb5def9afa5e40f6fa..9ef6f2cbef5ff61ed42c450f169105e573aaab9b 100644 (file)
--- a/vl.c
+++ b/vl.c
@@ -663,8 +663,6 @@ QemuOpts *drive_add(const char *file, const char *fmt, ...)
 
     opts = qemu_opts_parse(&qemu_drive_opts, optstr, 0);
     if (!opts) {
-        fprintf(stderr, "%s: huh? duplicate? (%s)\n",
-                __FUNCTION__, optstr);
         return NULL;
     }
     if (file)
@@ -785,10 +783,8 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
     QEMUMachine *machine = opaque;
     int max_devs;
     int index;
-    int cache;
-    int aio = 0;
     int ro = 0;
-    int bdrv_flags;
+    int bdrv_flags = 0;
     int on_read_error, on_write_error;
     const char *devaddr;
     DriveInfo *dinfo;
@@ -797,7 +793,6 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
     *fatal_error = 1;
 
     translation = BIOS_ATA_TRANSLATION_AUTO;
-    cache = 1;
 
     if (machine && machine->use_scsi) {
         type = IF_SCSI;
@@ -911,13 +906,13 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
     }
 
     if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
-        if (!strcmp(buf, "off") || !strcmp(buf, "none"))
-            cache = 0;
-        else if (!strcmp(buf, "writethrough"))
-            cache = 1;
-        else if (!strcmp(buf, "writeback"))
-            cache = 2;
-        else {
+        if (!strcmp(buf, "off") || !strcmp(buf, "none")) {
+            bdrv_flags |= BDRV_O_NOCACHE;
+        } else if (!strcmp(buf, "writeback")) {
+            bdrv_flags |= BDRV_O_CACHE_WB;
+        } else if (!strcmp(buf, "writethrough")) {
+            /* this is the default */
+        } else {
            fprintf(stderr, "qemu: invalid cache option\n");
            return NULL;
         }
@@ -925,11 +920,11 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
 
 #ifdef CONFIG_LINUX_AIO
     if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
-        if (!strcmp(buf, "threads"))
-            aio = 0;
-        else if (!strcmp(buf, "native"))
-            aio = 1;
-        else {
+        if (!strcmp(buf, "native")) {
+            bdrv_flags |= BDRV_O_NATIVE_AIO;
+        } else if (!strcmp(buf, "threads")) {
+            /* this is the default */
+        } else {
            fprintf(stderr, "qemu: invalid aio option\n");
            return NULL;
         }
@@ -1103,20 +1098,10 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
         *fatal_error = 0;
         return NULL;
     }
-    bdrv_flags = 0;
     if (snapshot) {
-        bdrv_flags |= BDRV_O_SNAPSHOT;
-        cache = 2; /* always use write-back with snapshot */
-    }
-    if (cache == 0) /* no caching */
-        bdrv_flags |= BDRV_O_NOCACHE;
-    else if (cache == 2) /* write-back */
-        bdrv_flags |= BDRV_O_CACHE_WB;
-
-    if (aio == 1) {
-        bdrv_flags |= BDRV_O_NATIVE_AIO;
-    } else {
-        bdrv_flags &= ~BDRV_O_NATIVE_AIO;
+        /* always use write-back with snapshot */
+        bdrv_flags &= ~BDRV_O_CACHE_MASK;
+        bdrv_flags |= (BDRV_O_SNAPSHOT|BDRV_O_CACHE_WB);
     }
 
     if (media == MEDIA_CDROM) {
@@ -1131,7 +1116,7 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
 
     bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
 
-    if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
+    if (bdrv_open(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
         fprintf(stderr, "qemu: could not open disk image %s: %s\n",
                         file, strerror(errno));
         return NULL;
@@ -1712,6 +1697,7 @@ static int shutdown_requested;
 static int powerdown_requested;
 int debug_requested;
 int vmstop_requested;
+static int exit_requested;
 
 int qemu_shutdown_requested(void)
 {
@@ -1734,6 +1720,12 @@ int qemu_powerdown_requested(void)
     return r;
 }
 
+int qemu_exit_requested(void)
+{
+    /* just return it, we'll exit() anyway */
+    return exit_requested;
+}
+
 static int qemu_debug_requested(void)
 {
     int r = debug_requested;
@@ -1804,6 +1796,12 @@ void qemu_system_powerdown_request(void)
     qemu_notify_event();
 }
 
+void qemu_system_exit_request(void)
+{
+    exit_requested = 1;
+    qemu_notify_event();
+}
+
 #ifdef _WIN32
 static void host_main_loop_wait(int *timeout)
 {
@@ -1940,6 +1938,8 @@ static int vm_can_run(void)
         return 0;
     if (debug_requested)
         return 0;
+    if (exit_requested)
+        return 0;
     return 1;
 }
 
@@ -1992,6 +1992,9 @@ static void main_loop(void)
         if ((r = qemu_vmstop_requested())) {
             vm_stop(r);
         }
+        if (qemu_exit_requested()) {
+            exit(0);
+        }
     }
     pause_all_vcpus();
 }
@@ -2655,25 +2658,16 @@ int main(int argc, char **argv, char **envp)
     }
 
     if (defconfig) {
-        const char *fname;
-        FILE *fp;
+        int ret;
 
-        fname = CONFIG_QEMU_CONFDIR "/qemu.conf";
-        fp = fopen(fname, "r");
-        if (fp) {
-            if (qemu_config_parse(fp, fname) != 0) {
-                exit(1);
-            }
-            fclose(fp);
+        ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
+        if (ret == -EINVAL) {
+            exit(1);
         }
 
-        fname = arch_config_name;
-        fp = fopen(fname, "r");
-        if (fp) {
-            if (qemu_config_parse(fp, fname) != 0) {
-                exit(1);
-            }
-            fclose(fp);
+        ret = qemu_read_config_file(arch_config_name);
+        if (ret == -EINVAL) {
+            exit(1);
         }
     }
     cpudef_init();
@@ -3072,7 +3066,6 @@ int main(int argc, char **argv, char **envp)
             case QEMU_OPTION_mon:
                 opts = qemu_opts_parse(&qemu_mon_opts, optarg, 1);
                 if (!opts) {
-                    fprintf(stderr, "parse error: %s\n", optarg);
                     exit(1);
                 }
                 default_monitor = 0;
@@ -3080,7 +3073,6 @@ int main(int argc, char **argv, char **envp)
             case QEMU_OPTION_chardev:
                 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, 1);
                 if (!opts) {
-                    fprintf(stderr, "parse error: %s\n", optarg);
                     exit(1);
                 }
                 break;
@@ -3161,10 +3153,6 @@ int main(int argc, char **argv, char **envp)
                 do_smbios_option(optarg);
                 break;
             case QEMU_OPTION_enable_kvm:
-                if (!(kvm_available())) {
-                    printf("Option %s not supported for this target\n", popt->name);
-                    exit(1);
-                }
                 kvm_allowed = 1;
                 break;
             case QEMU_OPTION_usb:
@@ -3278,7 +3266,6 @@ int main(int argc, char **argv, char **envp)
             case QEMU_OPTION_rtc:
                 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, 0);
                 if (!opts) {
-                    fprintf(stderr, "parse error: %s\n", optarg);
                     exit(1);
                 }
                 configure_rtc(opts);
@@ -3336,16 +3323,12 @@ int main(int argc, char **argv, char **envp)
                 break;
             case QEMU_OPTION_readconfig:
                 {
-                    FILE *fp;
-                    fp = fopen(optarg, "r");
-                    if (fp == NULL) {
-                        fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
-                        exit(1);
-                    }
-                    if (qemu_config_parse(fp, optarg) != 0) {
+                    int ret = qemu_read_config_file(optarg);
+                    if (ret < 0) {
+                        fprintf(stderr, "read config %s: %s\n", optarg,
+                            strerror(-ret));
                         exit(1);
                     }
-                    fclose(fp);
                     break;
                 }
             case QEMU_OPTION_writeconfig:
@@ -3511,12 +3494,14 @@ int main(int argc, char **argv, char **envp)
         exit(1);
     }
 
-    if (kvm_enabled()) {
-        int ret;
-
-        ret = kvm_init(smp_cpus);
+    if (kvm_allowed) {
+        int ret = kvm_init(smp_cpus);
         if (ret < 0) {
-            fprintf(stderr, "failed to initialize KVM\n");
+            if (!kvm_available()) {
+                printf("KVM not supported for this target\n");
+            } else {
+                fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
+            }
             exit(1);
         }
     }