Introduce and use cache-utils.[ch]

[mirror_qemu.git] / vl.c

diff --git a/vl.c b/vl.c
index 01d57d49fbc22a188af4354bd72fa092058500b6..c3a8d8fc9a94ed9a69405967cdd4258c1fe921a0 100644 (file)
--- a/vl.c
+++ b/vl.c
@@ -36,10 +36,12 @@
 #include "gdbstub.h"
 #include "qemu-timer.h"
 #include "qemu-char.h"
+#include "cache-utils.h"
 #include "block.h"
 #include "audio/audio.h"
 #include "migration.h"
 #include "kvm.h"
+#include "balloon.h"
 
 #include <unistd.h>
 #include <fcntl.h>
@@ -514,6 +516,31 @@ void hw_error(const char *fmt, ...)
     va_end(ap);
     abort();
 }
+ 
+/***************/
+/* ballooning */
+
+static QEMUBalloonEvent *qemu_balloon_event;
+void *qemu_balloon_event_opaque;
+
+void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
+{
+    qemu_balloon_event = func;
+    qemu_balloon_event_opaque = opaque;
+}
+
+void qemu_balloon(ram_addr_t target)
+{
+    if (qemu_balloon_event)
+        qemu_balloon_event(qemu_balloon_event_opaque, target);
+}
+
+ram_addr_t qemu_balloon_status(void)
+{
+    if (qemu_balloon_event)
+        return qemu_balloon_event(qemu_balloon_event_opaque, 0);
+    return 0;
+}
 
 /***********************************************************/
 /* keyboard/mouse */
@@ -1527,21 +1554,21 @@ static int dynticks_start_timer(struct qemu_alarm_timer *t)
         return -1;
     }
 
-    t->priv = (void *)host_timer;
+    t->priv = (void *)(long)host_timer;
 
     return 0;
 }
 
 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
 {
-    timer_t host_timer = (timer_t)t->priv;
+    timer_t host_timer = (timer_t)(long)t->priv;
 
     timer_delete(host_timer);
 }
 
 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
 {
-    timer_t host_timer = (timer_t)t->priv;
+    timer_t host_timer = (timer_t)(long)t->priv;
     struct itimerspec timeout;
     int64_t nearest_delta_us = INT64_MAX;
     int64_t current_us;
@@ -1624,15 +1651,6 @@ static void try_to_rearm_timer(void *opaque)
     } while ((len == -1 && errno == EINTR) || len > 0);
 #endif
 
-    /* vm time timers */
-    if (vm_running && likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
-        qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
-                        qemu_get_clock(vm_clock));
-
-    /* real time timers */
-    qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
-                    qemu_get_clock(rt_clock));
-
     if (t->flags & ALARM_FLAG_EXPIRED) {
         alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
         qemu_rearm_alarm_timer(alarm_timer);
@@ -2225,7 +2243,7 @@ static int drive_init(struct drive_opt *arg, int snapshot,
     unit_id = -1;
     translation = BIOS_ATA_TRANSLATION_AUTO;
     index = -1;
-    cache = 1;
+    cache = 3;
 
     if (machine->use_scsi) {
         type = IF_SCSI;
@@ -2276,7 +2294,10 @@ static int drive_init(struct drive_opt *arg, int snapshot,
        } else if (!strcmp(buf, "sd")) {
            type = IF_SD;
             max_devs = 0;
-       } else {
+        } else if (!strcmp(buf, "virtio")) {
+            type = IF_VIRTIO;
+            max_devs = 0;
+        } else {
             fprintf(stderr, "qemu: '%s' unsupported bus type '%s'\n", str, buf);
             return -1;
        }
@@ -2483,6 +2504,7 @@ static int drive_init(struct drive_opt *arg, int snapshot,
         break;
     case IF_PFLASH:
     case IF_MTD:
+    case IF_VIRTIO:
         break;
     }
     if (!file[0])
@@ -2496,6 +2518,8 @@ static int drive_init(struct drive_opt *arg, int snapshot,
         bdrv_flags |= BDRV_O_NOCACHE;
     else if (cache == 2) /* write-back */
         bdrv_flags |= BDRV_O_CACHE_WB;
+    else if (cache == 3) /* not specified */
+        bdrv_flags |= BDRV_O_CACHE_DEF;
     if (bdrv_open2(bdrv, file, bdrv_flags, drv) < 0 || qemu_key_check(bdrv, file)) {
         fprintf(stderr, "qemu: could not open disk image %s\n",
                         file);
@@ -3503,7 +3527,7 @@ void qemu_system_powerdown_request(void)
 }
 
 #ifdef _WIN32
-void host_main_loop_wait(int *timeout)
+static void host_main_loop_wait(int *timeout)
 {
     int ret, ret2, i;
     PollingEntry *pe;
@@ -3547,7 +3571,7 @@ void host_main_loop_wait(int *timeout)
     *timeout = 0;
 }
 #else
-void host_main_loop_wait(int *timeout)
+static void host_main_loop_wait(int *timeout)
 {
 }
 #endif
@@ -3629,6 +3653,15 @@ void main_loop_wait(int timeout)
     }
 #endif
 
+    /* vm time timers */
+    if (vm_running && likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
+        qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
+                        qemu_get_clock(vm_clock));
+
+    /* real time timers */
+    qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
+                    qemu_get_clock(rt_clock));
+
     /* Check bottom-halves last in case any of the earlier events triggered
        them.  */
     qemu_bh_poll();
@@ -3720,6 +3753,7 @@ static int main_loop(void)
                 ret = EXCP_INTERRUPT;
             }
             if (unlikely(ret == EXCP_DEBUG)) {
+                gdb_set_stop_cpu(cur_cpu);
                 vm_stop(EXCP_DEBUG);
             }
             /* If all cpus are halted then wait until the next IRQ */
@@ -4423,7 +4457,7 @@ static void termsig_setup(void)
 
 #endif
 
-int main(int argc, char **argv)
+int main(int argc, char **argv, char **envp)
 {
 #ifdef CONFIG_GDBSTUB
     int use_gdbstub;
@@ -4461,6 +4495,8 @@ int main(int argc, char **argv)
     int autostart;
     const char *incoming = NULL;
 
+    qemu_cache_utils_init(envp);
+
     LIST_INIT (&vm_change_state_head);
 #ifndef _WIN32
     {