diff options
| -rw-r--r-- | audio/audio.c | 2 | ||||
| -rw-r--r-- | cpus.c | 20 | ||||
| -rw-r--r-- | cpus.h | 1 | ||||
| -rw-r--r-- | gdbstub.c | 34 | ||||
| -rw-r--r-- | hw/etraxfs_dma.c | 2 | ||||
| -rw-r--r-- | hw/ide/ahci.c | 2 | ||||
| -rw-r--r-- | hw/ide/core.c | 4 | ||||
| -rw-r--r-- | hw/ide/internal.h | 3 | ||||
| -rw-r--r-- | hw/ide/pci.c | 2 | ||||
| -rw-r--r-- | hw/kvmclock.c | 5 | ||||
| -rw-r--r-- | hw/qxl.c | 5 | ||||
| -rw-r--r-- | hw/scsi-disk.c | 4 | ||||
| -rw-r--r-- | hw/virtio-blk.c | 5 | ||||
| -rw-r--r-- | hw/virtio.c | 4 | ||||
| -rw-r--r-- | hw/watchdog.c | 2 | ||||
| -rw-r--r-- | kvm-all.c | 2 | ||||
| -rw-r--r-- | migration.c | 14 | ||||
| -rw-r--r-- | monitor.c | 22 | ||||
| -rw-r--r-- | qemu-timer.c | 9 | ||||
| -rw-r--r-- | qerror.c | 4 | ||||
| -rw-r--r-- | qerror.h | 3 | ||||
| -rw-r--r-- | qmp-commands.hx | 19 | ||||
| -rw-r--r-- | savevm.c | 8 | ||||
| -rw-r--r-- | sysemu.h | 42 | ||||
| -rw-r--r-- | target-i386/kvm.c | 4 | ||||
| -rw-r--r-- | ui/sdl.c | 6 | ||||
| -rw-r--r-- | ui/spice-display.c | 3 | ||||
| -rw-r--r-- | ui/spice-display.h | 4 | ||||
| -rw-r--r-- | vl.c | 156 | ||||
| -rw-r--r-- | xen-all.c | 12 |
30 files changed, 292 insertions, 111 deletions
diff --git a/audio/audio.c b/audio/audio.c index 5649075..50d0d71 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -1743,7 +1743,7 @@ static int audio_driver_init (AudioState *s, struct audio_driver *drv) } static void audio_vm_change_state_handler (void *opaque, int running, - int reason) + RunState state) { AudioState *s = opaque; HWVoiceOut *hwo = NULL; @@ -115,16 +115,16 @@ void cpu_synchronize_all_post_init(void) int cpu_is_stopped(CPUState *env) { - return !vm_running || env->stopped; + return !runstate_is_running() || env->stopped; } -static void do_vm_stop(int reason) +static void do_vm_stop(RunState state) { - if (vm_running) { + if (runstate_is_running()) { cpu_disable_ticks(); - vm_running = 0; pause_all_vcpus(); - vm_state_notify(0, reason); + runstate_set(state); + vm_state_notify(0, state); qemu_aio_flush(); bdrv_flush_all(); monitor_protocol_event(QEVENT_STOP, NULL); @@ -136,7 +136,7 @@ static int cpu_can_run(CPUState *env) if (env->stop) { return 0; } - if (env->stopped || !vm_running) { + if (env->stopped || !runstate_is_running()) { return 0; } return 1; @@ -147,7 +147,7 @@ static bool cpu_thread_is_idle(CPUState *env) if (env->stop || env->queued_work_first) { return false; } - if (env->stopped || !vm_running) { + if (env->stopped || !runstate_is_running()) { return true; } if (!env->halted || qemu_cpu_has_work(env) || @@ -878,10 +878,10 @@ void cpu_stop_current(void) } } -void vm_stop(int reason) +void vm_stop(RunState state) { if (!qemu_thread_is_self(&io_thread)) { - qemu_system_vmstop_request(reason); + qemu_system_vmstop_request(state); /* * FIXME: should not return to device code in case * vm_stop() has been requested. @@ -889,7 +889,7 @@ void vm_stop(int reason) cpu_stop_current(); return; } - do_vm_stop(reason); + do_vm_stop(state); } static int tcg_cpu_exec(CPUState *env) @@ -15,7 +15,6 @@ void cpu_synchronize_all_post_init(void); /* vl.c */ extern int smp_cores; extern int smp_threads; -void vm_state_notify(int running, int reason); bool cpu_exec_all(void); void set_numa_modes(void); void set_cpu_log(const char *optarg); @@ -2373,7 +2373,7 @@ void gdb_set_stop_cpu(CPUState *env) } #ifndef CONFIG_USER_ONLY -static void gdb_vm_state_change(void *opaque, int running, int reason) +static void gdb_vm_state_change(void *opaque, int running, RunState state) { GDBState *s = gdbserver_state; CPUState *env = s->c_cpu; @@ -2384,8 +2384,8 @@ static void gdb_vm_state_change(void *opaque, int running, int reason) if (running || s->state == RS_INACTIVE || s->state == RS_SYSCALL) { return; } - switch (reason) { - case VMSTOP_DEBUG: + switch (state) { + case RSTATE_DEBUG: if (env->watchpoint_hit) { switch (env->watchpoint_hit->flags & BP_MEM_ACCESS) { case BP_MEM_READ: @@ -2408,25 +2408,25 @@ static void gdb_vm_state_change(void *opaque, int running, int reason) tb_flush(env); ret = GDB_SIGNAL_TRAP; break; - case VMSTOP_USER: + case RSTATE_PAUSED: ret = GDB_SIGNAL_INT; break; - case VMSTOP_SHUTDOWN: + case RSTATE_SHUTDOWN: ret = GDB_SIGNAL_QUIT; break; - case VMSTOP_DISKFULL: + case RSTATE_IO_ERROR: ret = GDB_SIGNAL_IO; break; - case VMSTOP_WATCHDOG: + case RSTATE_WATCHDOG: ret = GDB_SIGNAL_ALRM; break; - case VMSTOP_PANIC: + case RSTATE_PANICKED: ret = GDB_SIGNAL_ABRT; break; - case VMSTOP_SAVEVM: - case VMSTOP_LOADVM: + case RSTATE_SAVEVM: + case RSTATE_RESTORE: return; - case VMSTOP_MIGRATE: + case RSTATE_PRE_MIGRATE: ret = GDB_SIGNAL_XCPU; break; default: @@ -2463,7 +2463,7 @@ void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...) gdb_current_syscall_cb = cb; s->state = RS_SYSCALL; #ifndef CONFIG_USER_ONLY - vm_stop(VMSTOP_DEBUG); + vm_stop(RSTATE_DEBUG); #endif s->state = RS_IDLE; va_start(va, fmt); @@ -2534,10 +2534,10 @@ static void gdb_read_byte(GDBState *s, int ch) if (ch != '$') return; } - if (vm_running) { + if (runstate_is_running()) { /* when the CPU is running, we cannot do anything except stop it when receiving a char */ - vm_stop(VMSTOP_USER); + vm_stop(RSTATE_PAUSED); } else #endif { @@ -2799,7 +2799,7 @@ static void gdb_chr_event(void *opaque, int event) { switch (event) { case CHR_EVENT_OPENED: - vm_stop(VMSTOP_USER); + vm_stop(RSTATE_PAUSED); gdb_has_xml = 0; break; default: @@ -2839,8 +2839,8 @@ static int gdb_monitor_write(CharDriverState *chr, const uint8_t *buf, int len) #ifndef _WIN32 static void gdb_sigterm_handler(int signal) { - if (vm_running) { - vm_stop(VMSTOP_USER); + if (runstate_is_running()) { + vm_stop(RSTATE_PAUSED); } } #endif diff --git a/hw/etraxfs_dma.c b/hw/etraxfs_dma.c index e8ad9e6..d3082ac 100644 --- a/hw/etraxfs_dma.c +++ b/hw/etraxfs_dma.c @@ -732,7 +732,7 @@ static void DMA_run(void *opaque) struct fs_dma_ctrl *etraxfs_dmac = opaque; int p = 1; - if (vm_running) + if (runstate_is_running()) p = etraxfs_dmac_run(etraxfs_dmac); if (p) diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c index a8659cf..b813236 100644 --- a/hw/ide/ahci.c +++ b/hw/ide/ahci.c @@ -1103,7 +1103,7 @@ static void ahci_irq_set(void *opaque, int n, int level) { } -static void ahci_dma_restart_cb(void *opaque, int running, int reason) +static void ahci_dma_restart_cb(void *opaque, int running, RunState state) { } diff --git a/hw/ide/core.c b/hw/ide/core.c index 9297b9e..4d5a076 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -527,7 +527,7 @@ static int ide_handle_rw_error(IDEState *s, int error, int op) s->bus->dma->ops->set_unit(s->bus->dma, s->unit); s->bus->error_status = op; bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); - vm_stop(VMSTOP_DISKFULL); + vm_stop(RSTATE_IO_ERROR); } else { if (op & BM_STATUS_DMA_RETRY) { dma_buf_commit(s, 0); @@ -1910,7 +1910,7 @@ static int ide_nop_int(IDEDMA *dma, int x) return 0; } -static void ide_nop_restart(void *opaque, int x, int y) +static void ide_nop_restart(void *opaque, int x, RunState y) { } diff --git a/hw/ide/internal.h b/hw/ide/internal.h index 233915c..9046e96 100644 --- a/hw/ide/internal.h +++ b/hw/ide/internal.h @@ -9,6 +9,7 @@ #include <hw/ide.h> #include "iorange.h" #include "dma.h" +#include "sysemu.h" /* debug IDE devices */ //#define DEBUG_IDE @@ -387,7 +388,7 @@ typedef void EndTransferFunc(IDEState *); typedef void DMAStartFunc(IDEDMA *, IDEState *, BlockDriverCompletionFunc *); typedef int DMAFunc(IDEDMA *); typedef int DMAIntFunc(IDEDMA *, int); -typedef void DMARestartFunc(void *, int, int); +typedef void DMARestartFunc(void *, int, RunState); struct unreported_events { bool eject_request; diff --git a/hw/ide/pci.c b/hw/ide/pci.c index 9fded02..f133c42 100644 --- a/hw/ide/pci.c +++ b/hw/ide/pci.c @@ -222,7 +222,7 @@ static void bmdma_restart_bh(void *opaque) } } -static void bmdma_restart_cb(void *opaque, int running, int reason) +static void bmdma_restart_cb(void *opaque, int running, RunState state) { IDEDMA *dma = opaque; BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma); diff --git a/hw/kvmclock.c b/hw/kvmclock.c index b73aec4..5388bc4 100644 --- a/hw/kvmclock.c +++ b/hw/kvmclock.c @@ -46,7 +46,7 @@ static void kvmclock_pre_save(void *opaque) * it on next vmsave (which would return a different value). Will be reset * when the VM is continued. */ - s->clock_valid = !vm_running; + s->clock_valid = !runstate_is_running(); } static int kvmclock_post_load(void *opaque, int version_id) @@ -59,7 +59,8 @@ static int kvmclock_post_load(void *opaque, int version_id) return kvm_vm_ioctl(kvm_state, KVM_SET_CLOCK, &data); } -static void kvmclock_vm_state_change(void *opaque, int running, int reason) +static void kvmclock_vm_state_change(void *opaque, int running, + RunState state) { KVMClockState *s = opaque; @@ -1453,10 +1453,11 @@ static void qxl_hw_text_update(void *opaque, console_ch_t *chardata) } } -static void qxl_vm_change_state_handler(void *opaque, int running, int reason) +static void qxl_vm_change_state_handler(void *opaque, int running, + RunState state) { PCIQXLDevice *qxl = opaque; - qemu_spice_vm_change_state_handler(&qxl->ssd, running, reason); + qemu_spice_vm_change_state_handler(&qxl->ssd, running, state); if (running) { /* diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 4a60820..96c554f 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -217,7 +217,7 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type) r->status |= SCSI_REQ_STATUS_RETRY | type; bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); - vm_stop(VMSTOP_DISKFULL); + vm_stop(RSTATE_IO_ERROR); } else { switch (error) { case ENOMEM: @@ -338,7 +338,7 @@ static void scsi_dma_restart_bh(void *opaque) } } -static void scsi_dma_restart_cb(void *opaque, int running, int reason) +static void scsi_dma_restart_cb(void *opaque, int running, RunState state) { SCSIDiskState *s = opaque; diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c index c2ee000..daa8e42 100644 --- a/hw/virtio-blk.c +++ b/hw/virtio-blk.c @@ -77,7 +77,7 @@ static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error, req->next = s->rq; s->rq = req; bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); - vm_stop(VMSTOP_DISKFULL); + vm_stop(RSTATE_IO_ERROR); } else { virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR); bdrv_acct_done(s->bs, &req->acct); @@ -439,7 +439,8 @@ static void virtio_blk_dma_restart_bh(void *opaque) virtio_submit_multiwrite(s->bs, &mrb); } -static void virtio_blk_dma_restart_cb(void *opaque, int running, int reason) +static void virtio_blk_dma_restart_cb(void *opaque, int running, + RunState state) { VirtIOBlock *s = opaque; diff --git a/hw/virtio.c b/hw/virtio.c index 946d911..d9bf266 100644 --- a/hw/virtio.c +++ b/hw/virtio.c @@ -847,7 +847,7 @@ void virtio_cleanup(VirtIODevice *vdev) g_free(vdev); } -static void virtio_vmstate_change(void *opaque, int running, int reason) +static void virtio_vmstate_change(void *opaque, int running, RunState state) { VirtIODevice *vdev = opaque; bool backend_run = running && (vdev->status & VIRTIO_CONFIG_S_DRIVER_OK); @@ -880,7 +880,7 @@ VirtIODevice *virtio_common_init(const char *name, uint16_t device_id, vdev->queue_sel = 0; vdev->config_vector = VIRTIO_NO_VECTOR; vdev->vq = g_malloc0(sizeof(VirtQueue) * VIRTIO_PCI_QUEUE_MAX); - vdev->vm_running = vm_running; + vdev->vm_running = runstate_is_running(); for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) { vdev->vq[i].vector = VIRTIO_NO_VECTOR; vdev->vq[i].vdev = vdev; diff --git a/hw/watchdog.c b/hw/watchdog.c index 1c900a1..71c6c7d 100644 --- a/hw/watchdog.c +++ b/hw/watchdog.c @@ -132,7 +132,7 @@ void watchdog_perform_action(void) case WDT_PAUSE: /* same as 'stop' command in monitor */ watchdog_mon_event("pause"); - vm_stop(VMSTOP_WATCHDOG); + vm_stop(RSTATE_WATCHDOG); break; case WDT_DEBUG: @@ -1014,7 +1014,7 @@ int kvm_cpu_exec(CPUState *env) if (ret < 0) { cpu_dump_state(env, stderr, fprintf, CPU_DUMP_CODE); - vm_stop(VMSTOP_PANIC); + vm_stop(RSTATE_PANICKED); } env->exit_request = 0; diff --git a/migration.c b/migration.c index f5959b4..7dd8f4e 100644 --- a/migration.c +++ b/migration.c @@ -70,10 +70,11 @@ void process_incoming_migration(QEMUFile *f) qemu_announce_self(); DPRINTF("successfully loaded vm state\n"); - incoming_expected = false; - - if (autostart) + if (autostart) { vm_start(); + } else { + runstate_set(RSTATE_PRE_LAUNCH); + } } int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data) @@ -371,10 +372,10 @@ void migrate_fd_put_ready(void *opaque) DPRINTF("iterate\n"); if (qemu_savevm_state_iterate(s->mon, s->file) == 1) { int state; - int old_vm_running = vm_running; + int old_vm_running = runstate_is_running(); DPRINTF("done iterating\n"); - vm_stop(VMSTOP_MIGRATE); + vm_stop(RSTATE_PRE_MIGRATE); if ((qemu_savevm_state_complete(s->mon, s->file)) < 0) { if (old_vm_running) { @@ -390,6 +391,9 @@ void migrate_fd_put_ready(void *opaque) } state = MIG_STATE_ERROR; } + if (state == MIG_STATE_COMPLETED) { + runstate_set(RSTATE_POST_MIGRATE); + } s->state = state; notifier_list_notify(&migration_state_notifiers, NULL); } @@ -1293,7 +1293,7 @@ static void do_singlestep(Monitor *mon, const QDict *qdict) */ static int do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data) { - vm_stop(VMSTOP_USER); + vm_stop(RSTATE_PAUSED); return 0; } @@ -1311,10 +1311,15 @@ static int do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data) { struct bdrv_iterate_context context = { mon, 0 }; - if (incoming_expected) { + if (runstate_check(RSTATE_IN_MIGRATE)) { qerror_report(QERR_MIGRATION_EXPECTED); return -1; + } else if (runstate_check(RSTATE_PANICKED) || + runstate_check(RSTATE_SHUTDOWN)) { + qerror_report(QERR_RESET_REQUIRED); + return -1; } + bdrv_iterate(encrypted_bdrv_it, &context); /* only resume the vm if all keys are set and valid */ if (!context.err) { @@ -2613,6 +2618,7 @@ static int do_inject_nmi(Monitor *mon, const QDict *qdict, QObject **ret_data) static void do_info_status_print(Monitor *mon, const QObject *data) { QDict *qdict; + const char *status; qdict = qobject_to_qdict(data); @@ -2626,13 +2632,17 @@ static void do_info_status_print(Monitor *mon, const QObject *data) monitor_printf(mon, "paused"); } + status = qdict_get_str(qdict, "status"); + if (strcmp(status, "paused") && strcmp(status, "running")) { + monitor_printf(mon, " (%s)", status); + } + monitor_printf(mon, "\n"); } static void do_info_status(Monitor *mon, QObject **ret_data) { - *ret_data = qobject_from_jsonf("{ 'running': %i, 'singlestep': %i }", - vm_running, singlestep); + *ret_data = qobject_from_jsonf("{ 'running': %i, 'singlestep': %i, 'status': %s }", runstate_is_running(), singlestep, runstate_as_string()); } static qemu_acl *find_acl(Monitor *mon, const char *name) @@ -2825,10 +2835,10 @@ static int do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data) static void do_loadvm(Monitor *mon, const QDict *qdict) { - int saved_vm_running = vm_running; + int saved_vm_running = runstate_is_running(); const char *name = qdict_get_str(qdict, "name"); - vm_stop(VMSTOP_LOADVM); + vm_stop(RSTATE_RESTORE); if (load_vmstate(name) == 0 && saved_vm_running) { vm_start(); diff --git a/qemu-timer.c b/qemu-timer.c index 46dd483..ad1fc8b 100644 --- a/qemu-timer.c +++ b/qemu-timer.c @@ -230,7 +230,7 @@ static void icount_adjust(void) int64_t delta; static int64_t last_delta; /* If the VM is not running, then do nothing. */ - if (!vm_running) + if (!runstate_is_running()) return; cur_time = cpu_get_clock(); @@ -388,7 +388,7 @@ static void icount_warp_rt(void *opaque) return; } - if (vm_running) { + if (runstate_is_running()) { int64_t clock = qemu_get_clock_ns(rt_clock); int64_t warp_delta = clock - vm_clock_warp_start; if (use_icount == 1) { @@ -710,7 +710,7 @@ void qemu_run_all_timers(void) } /* vm time timers */ - if (vm_running) { + if (runstate_is_running()) { qemu_run_timers(vm_clock); } @@ -1116,7 +1116,8 @@ static void win32_rearm_timer(struct qemu_alarm_timer *t) #endif /* _WIN32 */ -static void alarm_timer_on_change_state_rearm(void *opaque, int running, int reason) +static void alarm_timer_on_change_state_rearm(void *opaque, int running, + RunState state) { if (running) qemu_rearm_alarm_timer((struct qemu_alarm_timer *) opaque); @@ -194,6 +194,10 @@ static const QErrorStringTable qerror_table[] = { .desc = "QMP input object member '%(member)' is unexpected", }, { + .error_fmt = QERR_RESET_REQUIRED, + .desc = "Resetting the Virtual Machine is required", + }, + { .error_fmt = QERR_SET_PASSWD_FAILED, .desc = "Could not set password", }, @@ -163,6 +163,9 @@ QError *qobject_to_qerror(const QObject *obj); #define QERR_QMP_EXTRA_MEMBER \ "{ 'class': 'QMPExtraInputObjectMember', 'data': { 'member': %s } }" +#define QERR_RESET_REQUIRED \ + "{ 'class': 'ResetRequired', 'data': {} }" + #define QERR_SET_PASSWD_FAILED \ "{ 'class': 'SetPasswdFailed', 'data': {} }" diff --git a/qmp-commands.hx b/qmp-commands.hx index d1c2c59..d83bce5 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1573,11 +1573,28 @@ Return a json-object with the following information: - "running": true if the VM is running, or false if it is paused (json-bool) - "singlestep": true if the VM is in single step mode, false otherwise (json-bool) +- "status": one of the following values (json-string) + "debug" - QEMU is running on a debugger + "inmigrate" - guest is paused waiting for an incoming migration + "internal-error" - An internal error that prevents further guest + execution has occurred + "io-error" - the last IOP has failed and the device is configured + to pause on I/O errors + "paused" - guest has been paused via the 'stop' command + "postmigrate" - guest is paused following a successful 'migrate' + "prelaunch" - QEMU was started with -S and guest has not started + "finish-migrate" - guest is paused to finish the migration process + "restore-vm" - guest is paused to restore VM state + "running" - guest is actively running + "save-vm" - guest is paused to save the VM state + "shutdown" - guest is shut down (and -no-shutdown is in use) + "watchdog" - the watchdog action is configured to pause and + has been triggered Example: -> { "execute": "query-status" } -<- { "return": { "running": true, "singlestep": false } } +<- { "return": { "running": true, "singlestep": false, "status": "running" } } EQMP @@ -1602,8 +1602,8 @@ static int qemu_savevm_state(Monitor *mon, QEMUFile *f) int saved_vm_running; int ret; - saved_vm_running = vm_running; - vm_stop(VMSTOP_SAVEVM); + saved_vm_running = runstate_is_running(); + vm_stop(RSTATE_SAVEVM); if (qemu_savevm_state_blocked(mon)) { ret = -EINVAL; @@ -1931,8 +1931,8 @@ void do_savevm(Monitor *mon, const QDict *qdict) return; } - saved_vm_running = vm_running; - vm_stop(VMSTOP_SAVEVM); + saved_vm_running = runstate_is_running(); + vm_stop(RSTATE_SAVEVM); memset(sn, 0, sizeof(*sn)); @@ -9,42 +9,56 @@ #include "notify.h" /* vl.c */ + +typedef enum { + RSTATE_NO_STATE, + RSTATE_DEBUG, /* qemu is running under gdb */ + RSTATE_IN_MIGRATE, /* paused waiting for an incoming migration */ + RSTATE_PANICKED, /* paused due to an internal error */ + RSTATE_IO_ERROR, /* paused due to an I/O error */ + RSTATE_PAUSED, /* paused by the user (ie. the 'stop' command) */ + RSTATE_POST_MIGRATE, /* paused following a successful migration */ + RSTATE_PRE_LAUNCH, /* qemu was started with -S and haven't started */ + RSTATE_PRE_MIGRATE, /* paused preparing to finish migrate */ + RSTATE_RESTORE, /* paused restoring the VM state */ + RSTATE_RUNNING, /* qemu is running */ + RSTATE_SAVEVM, /* paused saving VM state */ + RSTATE_SHUTDOWN, /* guest shut down and -no-shutdown is in use */ + RSTATE_WATCHDOG, /* watchdog fired and qemu is configured to pause */ + RSTATE_MAX +} RunState; + extern const char *bios_name; -extern int vm_running; extern const char *qemu_name; extern uint8_t qemu_uuid[]; int qemu_uuid_parse(const char *str, uint8_t *uuid); #define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-%02hhx%02hhx-%02hhx%02hhx-%02hhx%02hhx-%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx" +void runstate_init(void); +bool runstate_check(RunState state); +void runstate_set(RunState new_state); +int runstate_is_running(void); +const char *runstate_as_string(void); typedef struct vm_change_state_entry VMChangeStateEntry; -typedef void VMChangeStateHandler(void *opaque, int running, int reason); +typedef void VMChangeStateHandler(void *opaque, int running, RunState state); VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb, void *opaque); void qemu_del_vm_change_state_handler(VMChangeStateEntry *e); - -#define VMSTOP_USER 0 -#define VMSTOP_DEBUG 1 -#define VMSTOP_SHUTDOWN 2 -#define VMSTOP_DISKFULL 3 -#define VMSTOP_WATCHDOG 4 -#define VMSTOP_PANIC 5 -#define VMSTOP_SAVEVM 6 -#define VMSTOP_LOADVM 7 -#define VMSTOP_MIGRATE 8 +void vm_state_notify(int running, RunState state); #define VMRESET_SILENT false #define VMRESET_REPORT true void vm_start(void); -void vm_stop(int reason); +void vm_stop(RunState state); void qemu_system_reset_request(void); void qemu_system_shutdown_request(void); void qemu_system_powerdown_request(void); void qemu_system_debug_request(void); -void qemu_system_vmstop_request(int reason); +void qemu_system_vmstop_request(RunState reason); int qemu_shutdown_requested_get(void); int qemu_reset_requested_get(void); int qemu_shutdown_requested(void); diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 22b1dd0..b6eef04 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -334,7 +334,7 @@ static int kvm_inject_mce_oldstyle(CPUState *env) return 0; } -static void cpu_update_state(void *opaque, int running, int reason) +static void cpu_update_state(void *opaque, int running, RunState state) { CPUState *env = opaque; @@ -1130,7 +1130,7 @@ static int kvm_get_msrs(CPUState *env) if (!env->tsc_valid) { msrs[n++].index = MSR_IA32_TSC; - env->tsc_valid = !vm_running; + env->tsc_valid = !runstate_is_running(); } #ifdef TARGET_X86_64 @@ -409,7 +409,7 @@ static void sdl_update_caption(void) char icon_title[1024]; const char *status = ""; - if (!vm_running) + if (!runstate_is_running()) status = " [Stopped]"; else if (gui_grab) { if (alt_grab) @@ -853,8 +853,8 @@ static void sdl_refresh(DisplayState *ds) { SDL_Event ev1, *ev = &ev1; - if (last_vm_running != vm_running) { - last_vm_running = vm_running; + if (last_vm_running != runstate_is_running()) { + last_vm_running = runstate_is_running(); sdl_update_caption(); } diff --git a/ui/spice-display.c b/ui/spice-display.c index e385361..3a92a12 100644 --- a/ui/spice-display.c +++ b/ui/spice-display.c @@ -255,7 +255,8 @@ void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd) qemu_spice_destroy_primary_surface(ssd, 0, QXL_SYNC); } -void qemu_spice_vm_change_state_handler(void *opaque, int running, int reason) +void qemu_spice_vm_change_state_handler(void *opaque, int running, + RunState state) { SimpleSpiceDisplay *ssd = opaque; diff --git a/ui/spice-display.h b/ui/spice-display.h index 1388641..5e52df9 100644 --- a/ui/spice-display.h +++ b/ui/spice-display.h @@ -22,6 +22,7 @@ #include "qemu-thread.h" #include "console.h" #include "pflib.h" +#include "sysemu.h" #define NUM_MEMSLOTS 8 #define MEMSLOT_GENERATION_BITS 8 @@ -88,7 +89,8 @@ void qemu_spice_destroy_update(SimpleSpiceDisplay *sdpy, SimpleSpiceUpdate *upda void qemu_spice_create_host_memslot(SimpleSpiceDisplay *ssd); void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd); void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd); -void qemu_spice_vm_change_state_handler(void *opaque, int running, int reason); +void qemu_spice_vm_change_state_handler(void *opaque, int running, + RunState state); void qemu_spice_display_init_common(SimpleSpiceDisplay *ssd, DisplayState *ds); void qemu_spice_display_update(SimpleSpiceDisplay *ssd, @@ -185,9 +185,7 @@ int mem_prealloc = 0; /* force preallocation of physical target memory */ #endif int nb_nics; NICInfo nd_table[MAX_NICS]; -int vm_running; int autostart; -int incoming_expected; /* Started with -incoming and waiting for incoming */ static int rtc_utc = 1; static int rtc_date_offset = -1; /* -1 means no change */ QEMUClock *rtc_clock; @@ -323,6 +321,120 @@ static int default_driver_check(QemuOpts *opts, void *opaque) } /***********************************************************/ +/* QEMU state */ + +static RunState current_run_state = RSTATE_NO_STATE; + +typedef struct { + RunState from; + RunState to; +} RunStateTransition; + +static const RunStateTransition runstate_transitions_def[] = { + /* from -> to */ + { RSTATE_NO_STATE, RSTATE_RUNNING }, + { RSTATE_NO_STATE, RSTATE_IN_MIGRATE }, + { RSTATE_NO_STATE, RSTATE_PRE_LAUNCH }, + + { RSTATE_DEBUG, RSTATE_RUNNING }, + + { RSTATE_IN_MIGRATE, RSTATE_RUNNING }, + { RSTATE_IN_MIGRATE, RSTATE_PRE_LAUNCH }, + + { RSTATE_PANICKED, RSTATE_PAUSED }, + + { RSTATE_IO_ERROR, RSTATE_RUNNING }, + + { RSTATE_PAUSED, RSTATE_RUNNING }, + + { RSTATE_POST_MIGRATE, RSTATE_RUNNING }, + + { RSTATE_PRE_LAUNCH, RSTATE_RUNNING }, + { RSTATE_PRE_LAUNCH, RSTATE_POST_MIGRATE }, + + { RSTATE_PRE_MIGRATE, RSTATE_RUNNING }, + { RSTATE_PRE_MIGRATE, RSTATE_POST_MIGRATE }, + + { RSTATE_RESTORE, RSTATE_RUNNING }, + + { RSTATE_RUNNING, RSTATE_DEBUG }, + { RSTATE_RUNNING, RSTATE_PANICKED }, + { RSTATE_RUNNING, RSTATE_IO_ERROR }, + { RSTATE_RUNNING, RSTATE_PAUSED }, + { RSTATE_RUNNING, RSTATE_PRE_MIGRATE }, + { RSTATE_RUNNING, RSTATE_RESTORE }, + { RSTATE_RUNNING, RSTATE_SAVEVM }, + { RSTATE_RUNNING, RSTATE_SHUTDOWN }, + { RSTATE_RUNNING, RSTATE_WATCHDOG }, + + { RSTATE_SAVEVM, RSTATE_RUNNING }, + + { RSTATE_SHUTDOWN, RSTATE_PAUSED }, + + { RSTATE_WATCHDOG, RSTATE_RUNNING }, + + { RSTATE_MAX, RSTATE_MAX }, +}; + +static bool runstate_valid_transitions[RSTATE_MAX][RSTATE_MAX]; + +static const char *const runstate_name_tbl[RSTATE_MAX] = { + [RSTATE_DEBUG] = "debug", + [RSTATE_IN_MIGRATE] = "incoming-migration", + [RSTATE_PANICKED] = "internal-error", + [RSTATE_IO_ERROR] = "io-error", + [RSTATE_PAUSED] = "paused", + [RSTATE_POST_MIGRATE] = "post-migrate", + [RSTATE_PRE_LAUNCH] = "prelaunch", + [RSTATE_PRE_MIGRATE] = "finish-migrate", + [RSTATE_RESTORE] = "restore-vm", + [RSTATE_RUNNING] = "running", + [RSTATE_SAVEVM] = "save-vm", + [RSTATE_SHUTDOWN] = "shutdown", + [RSTATE_WATCHDOG] = "watchdog", +}; + +bool runstate_check(RunState state) +{ + return current_run_state == state; +} + +void runstate_init(void) +{ + const RunStateTransition *p; + + memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions)); + + for (p = &runstate_transitions_def[0]; p->from != RSTATE_MAX; p++) { + runstate_valid_transitions[p->from][p->to] = true; + } +} + +/* This function will abort() on invalid state transitions */ +void runstate_set(RunState new_state) +{ + if (new_state >= RSTATE_MAX || + !runstate_valid_transitions[current_run_state][new_state]) { + fprintf(stderr, "invalid runstate transition\n"); + abort(); + } + + current_run_state = new_state; +} + +const char *runstate_as_string(void) +{ + assert(current_run_state > RSTATE_NO_STATE && + current_run_state < RSTATE_MAX); + return runstate_name_tbl[current_run_state]; +} + +int runstate_is_running(void) +{ + return runstate_check(RSTATE_RUNNING); +} + +/***********************************************************/ /* real time host monotonic timer */ /***********************************************************/ @@ -1145,23 +1257,23 @@ void qemu_del_vm_change_state_handler(VMChangeStateEntry *e) g_free (e); } -void vm_state_notify(int running, int reason) +void vm_state_notify(int running, RunState state) { VMChangeStateEntry *e; - trace_vm_state_notify(running, reason); + trace_vm_state_notify(running, state); for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) { - e->cb(e->opaque, running, reason); + e->cb(e->opaque, running, state); } } void vm_start(void) { - if (!vm_running) { + if (!runstate_is_running()) { cpu_enable_ticks(); - vm_running = 1; - vm_state_notify(1, 0); + runstate_set(RSTATE_RUNNING); + vm_state_notify(1, RSTATE_RUNNING); resume_all_vcpus(); monitor_protocol_event(QEVENT_RESUME, NULL); } @@ -1182,7 +1294,7 @@ static int shutdown_requested, shutdown_signal = -1; static pid_t shutdown_pid; static int powerdown_requested; static int debug_requested; -static int vmstop_requested; +static RunState vmstop_requested = RSTATE_NO_STATE; int qemu_shutdown_requested_get(void) { @@ -1238,11 +1350,11 @@ static int qemu_debug_requested(void) return r; } -static int qemu_vmstop_requested(void) +static RunState qemu_vmstop_requested(void) { - int r = vmstop_requested; - vmstop_requested = 0; - return r; + RunState s = vmstop_requested; + vmstop_requested = RSTATE_NO_STATE; + return s; } void qemu_register_reset(QEMUResetHandler *func, void *opaque) @@ -1318,9 +1430,9 @@ void qemu_system_debug_request(void) qemu_notify_event(); } -void qemu_system_vmstop_request(int reason) +void qemu_system_vmstop_request(RunState state) { - vmstop_requested = reason; + vmstop_requested = state; qemu_notify_event(); } @@ -1470,13 +1582,13 @@ static void main_loop(void) #endif if (qemu_debug_requested()) { - vm_stop(VMSTOP_DEBUG); + vm_stop(RSTATE_DEBUG); } if (qemu_shutdown_requested()) { qemu_kill_report(); monitor_protocol_event(QEVENT_SHUTDOWN, NULL); if (no_shutdown) { - vm_stop(VMSTOP_SHUTDOWN); + vm_stop(RSTATE_SHUTDOWN); } else break; } @@ -1485,6 +1597,10 @@ static void main_loop(void) cpu_synchronize_all_states(); qemu_system_reset(VMRESET_REPORT); resume_all_vcpus(); + if (runstate_check(RSTATE_PANICKED) || + runstate_check(RSTATE_SHUTDOWN)) { + runstate_set(RSTATE_PAUSED); + } } if (qemu_powerdown_requested()) { monitor_protocol_event(QEVENT_POWERDOWN, NULL); @@ -2203,6 +2319,8 @@ int main(int argc, char **argv, char **envp) g_mem_set_vtable(&mem_trace); g_thread_init(NULL); + runstate_init(); + init_clocks(); qemu_cache_utils_init(envp); @@ -2953,7 +3071,6 @@ int main(int argc, char **argv, char **envp) break; case QEMU_OPTION_incoming: incoming = optarg; - incoming_expected = true; break; case QEMU_OPTION_nodefaults: default_serial = 0; @@ -3439,6 +3556,7 @@ int main(int argc, char **argv, char **envp) } if (incoming) { + runstate_set(RSTATE_IN_MIGRATE); int ret = qemu_start_incoming_migration(incoming); if (ret < 0) { fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n", @@ -3447,6 +3565,8 @@ int main(int argc, char **argv, char **envp) } } else if (autostart) { vm_start(); + } else { + runstate_set(RSTATE_PRE_LAUNCH); } os_setup_post(); @@ -736,7 +736,7 @@ static void cpu_handle_ioreq(void *opaque) * guest resumes and does a hlt with interrupts disabled which * causes Xen to powerdown the domain. */ - if (vm_running) { + if (runstate_is_running()) { if (qemu_shutdown_requested_get()) { destroy_hvm_domain(); } @@ -846,7 +846,8 @@ static void xen_main_loop_prepare(XenIOState *state) /* Initialise Xen */ -static void xen_change_state_handler(void *opaque, int running, int reason) +static void xen_change_state_handler(void *opaque, int running, + RunState state) { if (running) { /* record state running */ @@ -854,11 +855,12 @@ static void xen_change_state_handler(void *opaque, int running, int reason) } } -static void xen_hvm_change_state_handler(void *opaque, int running, int reason) +static void xen_hvm_change_state_handler(void *opaque, int running, + RunState rstate) { - XenIOState *state = opaque; + XenIOState *xstate = opaque; if (running) { - xen_main_loop_prepare(state); + xen_main_loop_prepare(xstate); } } |