+static QEMUMachine *machine_parse(const char *name)
+{
+ QEMUMachine *m, *machine = NULL;
+
+ if (name) {
+ machine = find_machine(name);
+ }
+ if (machine) {
+ return machine;
+ }
+ printf("Supported machines are:\n");
+ for (m = first_machine; m != NULL; m = m->next) {
+ if (m->alias) {
+ printf("%-10s %s (alias of %s)\n", m->alias, m->desc, m->name);
+ }
+ printf("%-10s %s%s\n", m->name, m->desc,
+ m->is_default ? " (default)" : "");
+ }
+ exit(!name || *name != '?');
+}
+
+static int tcg_init(void)
+{
+ tcg_exec_init(tcg_tb_size * 1024 * 1024);
+ return 0;
+}
+
+static struct {
+ const char *opt_name;
+ const char *name;
+ int (*available)(void);
+ int (*init)(void);
+ int *allowed;
+} accel_list[] = {
+ { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
+ { "xen", "Xen", xen_available, xen_init, &xen_allowed },
+ { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
+};
+
+static int configure_accelerator(void)
+{
+ const char *p = NULL;
+ char buf[10];
+ int i, ret;
+ bool accel_initalised = 0;
+ bool init_failed = 0;
+
+ QemuOptsList *list = qemu_find_opts("machine");
+ if (!QTAILQ_EMPTY(&list->head)) {
+ p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
+ }
+
+ if (p == NULL) {
+ /* Use the default "accelerator", tcg */
+ p = "tcg";
+ }
+
+ while (!accel_initalised && *p != '\0') {
+ if (*p == ':') {
+ p++;
+ }
+ p = get_opt_name(buf, sizeof (buf), p, ':');
+ for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
+ if (strcmp(accel_list[i].opt_name, buf) == 0) {
+ *(accel_list[i].allowed) = 1;
+ ret = accel_list[i].init();
+ if (ret < 0) {
+ init_failed = 1;
+ if (!accel_list[i].available()) {
+ printf("%s not supported for this target\n",
+ accel_list[i].name);
+ } else {
+ fprintf(stderr, "failed to initialize %s: %s\n",
+ accel_list[i].name,
+ strerror(-ret));
+ }
+ *(accel_list[i].allowed) = 0;
+ } else {
+ accel_initalised = 1;
+ }
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(accel_list)) {
+ fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
+ }
+ }
+
+ if (!accel_initalised) {
+ fprintf(stderr, "No accelerator found!\n");
+ exit(1);
+ }
+
+ if (init_failed) {
+ fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
+ }
+
+ return !accel_initalised;
+}
+
projects / qemu.git / blobdiff