#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>
#include <termios.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
+#include <sys/resource.h>
#include <sys/socket.h>
#include <netinet/in.h>
+#include <net/if.h>
+#if defined(__NetBSD__)
+#include <net/if_tap.h>
+#endif
+#ifdef __linux__
+#include <linux/if_tun.h>
+#endif
+#include <arpa/inet.h>
#include <dirent.h>
#include <netdb.h>
#include <sys/select.h>
-#include <arpa/inet.h>
#ifdef _BSD
#include <sys/stat.h>
-#if !defined(__APPLE__) && !defined(__OpenBSD__)
+#ifdef __FreeBSD__
#include <libutil.h>
-#endif
-#ifdef __OpenBSD__
-#include <net/if.h>
+#else
+#include <util.h>
#endif
#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
#include <freebsd/stdlib.h>
#else
#ifdef __linux__
-#include <linux/if.h>
-#include <linux/if_tun.h>
#include <pty.h>
#include <malloc.h>
#include <linux/rtc.h>
#include "exec-all.h"
-#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
-#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
-#ifdef __sun__
-#define SMBD_COMMAND "/usr/sfw/sbin/smbd"
-#else
-#define SMBD_COMMAND "/usr/sbin/smbd"
-#endif
-
//#define DEBUG_UNUSED_IOPORT
//#define DEBUG_IOPORT
//#define DEBUG_NET
/* Max number of USB devices that can be specified on the commandline. */
#define MAX_USB_CMDLINE 8
+/* Max number of bluetooth switches on the commandline. */
+#define MAX_BT_CMDLINE 10
+
/* XXX: use a two level table to limit memory usage */
#define MAX_IOPORTS 65536
to store the VM snapshots */
DriveInfo drives_table[MAX_DRIVES+1];
int nb_drives;
-/* point to the block driver where the snapshots are managed */
-static BlockDriverState *bs_snapshots;
static int vga_ram_size;
enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
DisplayState display_state;
int graphic_depth = 15;
#endif
static int full_screen = 0;
+#ifdef CONFIG_SDL
static int no_frame = 0;
+#endif
int no_quit = 0;
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
int smp_cpus = 1;
const char *vnc_display;
int acpi_enabled = 1;
+int no_hpet = 0;
int fd_bootchk = 1;
int no_reboot = 0;
int no_shutdown = 0;
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 */
#define MIN_TIMER_REARM_US 250
static struct qemu_alarm_timer *alarm_timer;
+#ifndef _WIN32
static int alarm_timer_rfd, alarm_timer_wfd;
+#endif
#ifdef _WIN32
{
int i;
int cur = 0;
- int count = (sizeof(alarm_timers) / sizeof(*alarm_timers)) - 1;
+ int count = ARRAY_SIZE(alarm_timers) - 1;
char *arg;
char *name;
struct qemu_alarm_timer tmp;
qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
qemu_get_clock(rt_clock))) {
CPUState *env = next_cpu;
- static const char byte = 0;
#ifdef _WIN32
struct qemu_alarm_win32 *data = ((struct qemu_alarm_timer*)dwUser)->priv;
SetEvent(data->host_alarm);
-#endif
-
+#else
+ static const char byte = 0;
write(alarm_timer_wfd, &byte, sizeof(byte));
+#endif
alarm_timer->flags |= ALARM_FLAG_EXPIRED;
if (env) {
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;
#endif /* !defined(_WIN32) */
+static void try_to_rearm_timer(void *opaque)
+{
+ struct qemu_alarm_timer *t = opaque;
+#ifndef _WIN32
+ ssize_t len;
+
+ /* Drain the notify pipe */
+ do {
+ char buffer[512];
+ len = read(alarm_timer_rfd, buffer, sizeof(buffer));
+ } while ((len == -1 && errno == EINTR) || len > 0);
+#endif
+
+ if (t->flags & ALARM_FLAG_EXPIRED) {
+ alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
+ qemu_rearm_alarm_timer(alarm_timer);
+ }
+}
+
#ifdef _WIN32
static int win32_start_timer(struct qemu_alarm_timer *t)
return -1;
}
- qemu_add_wait_object(data->host_alarm, NULL, NULL);
+ qemu_add_wait_object(data->host_alarm, try_to_rearm_timer, t);
return 0;
}
{
struct qemu_alarm_timer *t = NULL;
int i, err = -1;
+
+#ifndef _WIN32
int fds[2];
err = pipe(fds);
alarm_timer_rfd = fds[0];
alarm_timer_wfd = fds[1];
+#endif
for (i = 0; alarm_timers[i].name; i++) {
t = &alarm_timers[i];
goto fail;
}
+#ifndef _WIN32
+ qemu_set_fd_handler2(alarm_timer_rfd, NULL,
+ try_to_rearm_timer, NULL, t);
+#endif
+
alarm_timer = t;
- return 1;
+ return 0;
fail:
+#ifndef _WIN32
close(fds[0]);
close(fds[1]);
+#endif
return err;
}
static int nb_hcis;
static int cur_hci;
static struct HCIInfo *hci_table[MAX_NICS];
-#if 0
+
static struct bt_vlan_s {
struct bt_scatternet_s net;
int id;
*pvlan = vlan;
return &vlan->net;
}
-#endif
static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
{
return hci_table[cur_hci++];
}
+static struct HCIInfo *hci_init(const char *str)
+{
+ char *endp;
+ struct bt_scatternet_s *vlan = 0;
+
+ if (!strcmp(str, "null"))
+ /* null */
+ return &null_hci;
+ else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
+ /* host[:hciN] */
+ return bt_host_hci(str[4] ? str + 5 : "hci0");
+ else if (!strncmp(str, "hci", 3)) {
+ /* hci[,vlan=n] */
+ if (str[3]) {
+ if (!strncmp(str + 3, ",vlan=", 6)) {
+ vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
+ if (*endp)
+ vlan = 0;
+ }
+ } else
+ vlan = qemu_find_bt_vlan(0);
+ if (vlan)
+ return bt_new_hci(vlan);
+ }
+
+ fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
+
+ return 0;
+}
+
+static int bt_hci_parse(const char *str)
+{
+ struct HCIInfo *hci;
+ bdaddr_t bdaddr;
+
+ if (nb_hcis >= MAX_NICS) {
+ fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
+ return -1;
+ }
+
+ hci = hci_init(str);
+ if (!hci)
+ return -1;
+
+ bdaddr.b[0] = 0x52;
+ bdaddr.b[1] = 0x54;
+ bdaddr.b[2] = 0x00;
+ bdaddr.b[3] = 0x12;
+ bdaddr.b[4] = 0x34;
+ bdaddr.b[5] = 0x56 + nb_hcis;
+ hci->bdaddr_set(hci, bdaddr.b);
+
+ hci_table[nb_hcis++] = hci;
+
+ return 0;
+}
+
+static void bt_vhci_add(int vlan_id)
+{
+ struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
+
+ if (!vlan->slave)
+ fprintf(stderr, "qemu: warning: adding a VHCI to "
+ "an empty scatternet %i\n", vlan_id);
+
+ bt_vhci_init(bt_new_hci(vlan));
+}
+
+static struct bt_device_s *bt_device_add(const char *opt)
+{
+ struct bt_scatternet_s *vlan;
+ int vlan_id = 0;
+ char *endp = strstr(opt, ",vlan=");
+ int len = (endp ? endp - opt : strlen(opt)) + 1;
+ char devname[10];
+
+ pstrcpy(devname, MIN(sizeof(devname), len), opt);
+
+ if (endp) {
+ vlan_id = strtol(endp + 6, &endp, 0);
+ if (*endp) {
+ fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
+ return 0;
+ }
+ }
+
+ vlan = qemu_find_bt_vlan(vlan_id);
+
+ if (!vlan->slave)
+ fprintf(stderr, "qemu: warning: adding a slave device to "
+ "an empty scatternet %i\n", vlan_id);
+
+ if (!strcmp(devname, "keyboard"))
+ return bt_keyboard_init(vlan);
+
+ fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
+ return 0;
+}
+
+static int bt_parse(const char *opt)
+{
+ const char *endp, *p;
+ int vlan;
+
+ if (strstart(opt, "hci", &endp)) {
+ if (!*endp || *endp == ',') {
+ if (*endp)
+ if (!strstart(endp, ",vlan=", 0))
+ opt = endp + 1;
+
+ return bt_hci_parse(opt);
+ }
+ } else if (strstart(opt, "vhci", &endp)) {
+ if (!*endp || *endp == ',') {
+ if (*endp) {
+ if (strstart(endp, ",vlan=", &p)) {
+ vlan = strtol(p, (char **) &endp, 0);
+ if (*endp) {
+ fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
+ return 1;
+ }
+ } else {
+ fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
+ return 1;
+ }
+ } else
+ vlan = 0;
+
+ bt_vhci_add(vlan);
+ return 0;
+ }
+ } else if (strstart(opt, "device:", &endp))
+ return !bt_device_add(endp);
+
+ fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
+ return 1;
+}
+
/***********************************************************/
/* QEMU Block devices */
unit_id = -1;
translation = BIOS_ATA_TRANSLATION_AUTO;
index = -1;
- cache = 1;
+ cache = 3;
if (machine->use_scsi) {
type = IF_SCSI;
} 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;
}
break;
case IF_PFLASH:
case IF_MTD:
+ case IF_VIRTIO:
break;
}
if (!file[0])
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);
return -1;
nd_table[nic].model = "usb";
dev = usb_net_init(&nd_table[nic]);
+ } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
+ dev = usb_bt_init(devname[2] ? hci_init(p) :
+ bt_new_hci(qemu_find_bt_vlan(0)));
} else {
return -1;
}
}
#endif
-#define SELF_ANNOUNCE_ROUNDS 5
-#define ETH_P_EXPERIMENTAL 0x01F1 /* just a number */
-//#define ETH_P_EXPERIMENTAL 0x0012 /* make it the size of the packet */
-#define EXPERIMENTAL_MAGIC 0xf1f23f4f
+/***********************************************************/
+/* ram save/restore */
-static int announce_self_create(uint8_t *buf,
- uint8_t *mac_addr)
+static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
{
- uint32_t magic = EXPERIMENTAL_MAGIC;
- uint16_t proto = htons(ETH_P_EXPERIMENTAL);
+ int v;
- /* FIXME: should we send a different packet (arp/rarp/ping)? */
+ v = qemu_get_byte(f);
+ switch(v) {
+ case 0:
+ if (qemu_get_buffer(f, buf, len) != len)
+ return -EIO;
+ break;
+ case 1:
+ v = qemu_get_byte(f);
+ memset(buf, v, len);
+ break;
+ default:
+ return -EINVAL;
+ }
- memset(buf, 0xff, 6); /* h_dst */
- memcpy(buf + 6, mac_addr, 6); /* h_src */
- memcpy(buf + 12, &proto, 2); /* h_proto */
- memcpy(buf + 14, &magic, 4); /* magic */
+ if (qemu_file_has_error(f))
+ return -EIO;
- return 18; /* len */
+ return 0;
}
-void qemu_announce_self(void)
+static int ram_load_v1(QEMUFile *f, void *opaque)
{
- int i, j, len;
- VLANState *vlan;
- VLANClientState *vc;
- uint8_t buf[256];
+ int ret;
+ ram_addr_t i;
- for (i = 0; i < nb_nics; i++) {
- len = announce_self_create(buf, nd_table[i].macaddr);
- vlan = nd_table[i].vlan;
- for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
- for (j=0; j < SELF_ANNOUNCE_ROUNDS; j++)
- vc->fd_read(vc->opaque, buf, len);
- }
+ if (qemu_get_be32(f) != phys_ram_size)
+ return -EINVAL;
+ for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
+ ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
+ if (ret)
+ return ret;
}
+ return 0;
}
-/***********************************************************/
-/* savevm/loadvm support */
-
-#define IO_BUF_SIZE 32768
-
-struct QEMUFile {
- QEMUFilePutBufferFunc *put_buffer;
- QEMUFileGetBufferFunc *get_buffer;
- QEMUFileCloseFunc *close;
- QEMUFileRateLimit *rate_limit;
- void *opaque;
- int is_write;
-
- int64_t buf_offset; /* start of buffer when writing, end of buffer
- when reading */
- int buf_index;
- int buf_size; /* 0 when writing */
- uint8_t buf[IO_BUF_SIZE];
-
- int has_error;
-};
+#define BDRV_HASH_BLOCK_SIZE 1024
+#define IOBUF_SIZE 4096
+#define RAM_CBLOCK_MAGIC 0xfabe
-typedef struct QEMUFileSocket
-{
- int fd;
- QEMUFile *file;
-} QEMUFileSocket;
+typedef struct RamDecompressState {
+ z_stream zstream;
+ QEMUFile *f;
+ uint8_t buf[IOBUF_SIZE];
+} RamDecompressState;
-static int socket_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
+static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
{
- QEMUFileSocket *s = opaque;
- ssize_t len;
-
- do {
- len = recv(s->fd, buf, size, 0);
- } while (len == -1 && socket_error() == EINTR);
-
- if (len == -1)
- len = -socket_error();
-
- return len;
+ int ret;
+ memset(s, 0, sizeof(*s));
+ s->f = f;
+ ret = inflateInit(&s->zstream);
+ if (ret != Z_OK)
+ return -1;
+ return 0;
}
-static int socket_close(void *opaque)
+static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
{
- QEMUFileSocket *s = opaque;
- qemu_free(s);
+ int ret, clen;
+
+ s->zstream.avail_out = len;
+ s->zstream.next_out = buf;
+ while (s->zstream.avail_out > 0) {
+ if (s->zstream.avail_in == 0) {
+ if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
+ return -1;
+ clen = qemu_get_be16(s->f);
+ if (clen > IOBUF_SIZE)
+ return -1;
+ qemu_get_buffer(s->f, s->buf, clen);
+ s->zstream.avail_in = clen;
+ s->zstream.next_in = s->buf;
+ }
+ ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
+ if (ret != Z_OK && ret != Z_STREAM_END) {
+ return -1;
+ }
+ }
return 0;
}
-QEMUFile *qemu_fopen_socket(int fd)
+static void ram_decompress_close(RamDecompressState *s)
{
- QEMUFileSocket *s = qemu_mallocz(sizeof(QEMUFileSocket));
-
- if (s == NULL)
- return NULL;
-
- s->fd = fd;
- s->file = qemu_fopen_ops(s, NULL, socket_get_buffer, socket_close, NULL);
- return s->file;
+ inflateEnd(&s->zstream);
}
-typedef struct QEMUFileStdio
-{
- FILE *outfile;
-} QEMUFileStdio;
+#define RAM_SAVE_FLAG_FULL 0x01
+#define RAM_SAVE_FLAG_COMPRESS 0x02
+#define RAM_SAVE_FLAG_MEM_SIZE 0x04
+#define RAM_SAVE_FLAG_PAGE 0x08
+#define RAM_SAVE_FLAG_EOS 0x10
-static int file_put_buffer(void *opaque, const uint8_t *buf,
- int64_t pos, int size)
+static int is_dup_page(uint8_t *page, uint8_t ch)
{
- QEMUFileStdio *s = opaque;
- fseek(s->outfile, pos, SEEK_SET);
- fwrite(buf, 1, size, s->outfile);
- return size;
-}
+ uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
+ uint32_t *array = (uint32_t *)page;
+ int i;
-static int file_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
-{
- QEMUFileStdio *s = opaque;
- fseek(s->outfile, pos, SEEK_SET);
- return fread(buf, 1, size, s->outfile);
-}
+ for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
+ if (array[i] != val)
+ return 0;
+ }
-static int file_close(void *opaque)
-{
- QEMUFileStdio *s = opaque;
- fclose(s->outfile);
- qemu_free(s);
- return 0;
+ return 1;
}
-QEMUFile *qemu_fopen(const char *filename, const char *mode)
+static int ram_save_block(QEMUFile *f)
{
- QEMUFileStdio *s;
-
- s = qemu_mallocz(sizeof(QEMUFileStdio));
- if (!s)
- return NULL;
+ static ram_addr_t current_addr = 0;
+ ram_addr_t saved_addr = current_addr;
+ ram_addr_t addr = 0;
+ int found = 0;
- s->outfile = fopen(filename, mode);
- if (!s->outfile)
- goto fail;
+ while (addr < phys_ram_size) {
+ if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
+ uint8_t ch;
- if (!strcmp(mode, "wb"))
- return qemu_fopen_ops(s, file_put_buffer, NULL, file_close, NULL);
- else if (!strcmp(mode, "rb"))
- return qemu_fopen_ops(s, NULL, file_get_buffer, file_close, NULL);
+ cpu_physical_memory_reset_dirty(current_addr,
+ current_addr + TARGET_PAGE_SIZE,
+ MIGRATION_DIRTY_FLAG);
-fail:
- if (s->outfile)
- fclose(s->outfile);
- qemu_free(s);
- return NULL;
-}
+ ch = *(phys_ram_base + current_addr);
-typedef struct QEMUFileBdrv
-{
- BlockDriverState *bs;
- int64_t base_offset;
-} QEMUFileBdrv;
-
-static int bdrv_put_buffer(void *opaque, const uint8_t *buf,
- int64_t pos, int size)
-{
- QEMUFileBdrv *s = opaque;
- bdrv_pwrite(s->bs, s->base_offset + pos, buf, size);
- return size;
-}
-
-static int bdrv_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
-{
- QEMUFileBdrv *s = opaque;
- return bdrv_pread(s->bs, s->base_offset + pos, buf, size);
-}
-
-static int bdrv_fclose(void *opaque)
-{
- QEMUFileBdrv *s = opaque;
- qemu_free(s);
- return 0;
-}
-
-static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int64_t offset, int is_writable)
-{
- QEMUFileBdrv *s;
-
- s = qemu_mallocz(sizeof(QEMUFileBdrv));
- if (!s)
- return NULL;
-
- s->bs = bs;
- s->base_offset = offset;
-
- if (is_writable)
- return qemu_fopen_ops(s, bdrv_put_buffer, NULL, bdrv_fclose, NULL);
-
- return qemu_fopen_ops(s, NULL, bdrv_get_buffer, bdrv_fclose, NULL);
-}
-
-QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer,
- QEMUFileGetBufferFunc *get_buffer,
- QEMUFileCloseFunc *close,
- QEMUFileRateLimit *rate_limit)
-{
- QEMUFile *f;
-
- f = qemu_mallocz(sizeof(QEMUFile));
- if (!f)
- return NULL;
-
- f->opaque = opaque;
- f->put_buffer = put_buffer;
- f->get_buffer = get_buffer;
- f->close = close;
- f->rate_limit = rate_limit;
- f->is_write = 0;
-
- return f;
-}
-
-int qemu_file_has_error(QEMUFile *f)
-{
- return f->has_error;
-}
-
-void qemu_fflush(QEMUFile *f)
-{
- if (!f->put_buffer)
- return;
-
- if (f->is_write && f->buf_index > 0) {
- int len;
-
- len = f->put_buffer(f->opaque, f->buf, f->buf_offset, f->buf_index);
- if (len > 0)
- f->buf_offset += f->buf_index;
- else
- f->has_error = 1;
- f->buf_index = 0;
- }
-}
-
-static void qemu_fill_buffer(QEMUFile *f)
-{
- int len;
-
- if (!f->get_buffer)
- return;
-
- if (f->is_write)
- abort();
-
- len = f->get_buffer(f->opaque, f->buf, f->buf_offset, IO_BUF_SIZE);
- if (len > 0) {
- f->buf_index = 0;
- f->buf_size = len;
- f->buf_offset += len;
- } else if (len != -EAGAIN)
- f->has_error = 1;
-}
-
-int qemu_fclose(QEMUFile *f)
-{
- int ret = 0;
- qemu_fflush(f);
- if (f->close)
- ret = f->close(f->opaque);
- qemu_free(f);
- return ret;
-}
-
-void qemu_file_put_notify(QEMUFile *f)
-{
- f->put_buffer(f->opaque, NULL, 0, 0);
-}
-
-void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
-{
- int l;
-
- if (!f->has_error && f->is_write == 0 && f->buf_index > 0) {
- fprintf(stderr,
- "Attempted to write to buffer while read buffer is not empty\n");
- abort();
- }
-
- while (!f->has_error && size > 0) {
- l = IO_BUF_SIZE - f->buf_index;
- if (l > size)
- l = size;
- memcpy(f->buf + f->buf_index, buf, l);
- f->is_write = 1;
- f->buf_index += l;
- buf += l;
- size -= l;
- if (f->buf_index >= IO_BUF_SIZE)
- qemu_fflush(f);
- }
-}
-
-void qemu_put_byte(QEMUFile *f, int v)
-{
- if (!f->has_error && f->is_write == 0 && f->buf_index > 0) {
- fprintf(stderr,
- "Attempted to write to buffer while read buffer is not empty\n");
- abort();
- }
-
- f->buf[f->buf_index++] = v;
- f->is_write = 1;
- if (f->buf_index >= IO_BUF_SIZE)
- qemu_fflush(f);
-}
-
-int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size1)
-{
- int size, l;
-
- if (f->is_write)
- abort();
-
- size = size1;
- while (size > 0) {
- l = f->buf_size - f->buf_index;
- if (l == 0) {
- qemu_fill_buffer(f);
- l = f->buf_size - f->buf_index;
- if (l == 0)
- break;
- }
- if (l > size)
- l = size;
- memcpy(buf, f->buf + f->buf_index, l);
- f->buf_index += l;
- buf += l;
- size -= l;
- }
- return size1 - size;
-}
-
-int qemu_get_byte(QEMUFile *f)
-{
- if (f->is_write)
- abort();
-
- if (f->buf_index >= f->buf_size) {
- qemu_fill_buffer(f);
- if (f->buf_index >= f->buf_size)
- return 0;
- }
- return f->buf[f->buf_index++];
-}
-
-int64_t qemu_ftell(QEMUFile *f)
-{
- return f->buf_offset - f->buf_size + f->buf_index;
-}
-
-int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
-{
- if (whence == SEEK_SET) {
- /* nothing to do */
- } else if (whence == SEEK_CUR) {
- pos += qemu_ftell(f);
- } else {
- /* SEEK_END not supported */
- return -1;
- }
- if (f->put_buffer) {
- qemu_fflush(f);
- f->buf_offset = pos;
- } else {
- f->buf_offset = pos;
- f->buf_index = 0;
- f->buf_size = 0;
- }
- return pos;
-}
-
-int qemu_file_rate_limit(QEMUFile *f)
-{
- if (f->rate_limit)
- return f->rate_limit(f->opaque);
-
- return 0;
-}
-
-void qemu_put_be16(QEMUFile *f, unsigned int v)
-{
- qemu_put_byte(f, v >> 8);
- qemu_put_byte(f, v);
-}
-
-void qemu_put_be32(QEMUFile *f, unsigned int v)
-{
- qemu_put_byte(f, v >> 24);
- qemu_put_byte(f, v >> 16);
- qemu_put_byte(f, v >> 8);
- qemu_put_byte(f, v);
-}
-
-void qemu_put_be64(QEMUFile *f, uint64_t v)
-{
- qemu_put_be32(f, v >> 32);
- qemu_put_be32(f, v);
-}
-
-unsigned int qemu_get_be16(QEMUFile *f)
-{
- unsigned int v;
- v = qemu_get_byte(f) << 8;
- v |= qemu_get_byte(f);
- return v;
-}
-
-unsigned int qemu_get_be32(QEMUFile *f)
-{
- unsigned int v;
- v = qemu_get_byte(f) << 24;
- v |= qemu_get_byte(f) << 16;
- v |= qemu_get_byte(f) << 8;
- v |= qemu_get_byte(f);
- return v;
-}
-
-uint64_t qemu_get_be64(QEMUFile *f)
-{
- uint64_t v;
- v = (uint64_t)qemu_get_be32(f) << 32;
- v |= qemu_get_be32(f);
- return v;
-}
-
-typedef struct SaveStateEntry {
- char idstr[256];
- int instance_id;
- int version_id;
- int section_id;
- SaveLiveStateHandler *save_live_state;
- SaveStateHandler *save_state;
- LoadStateHandler *load_state;
- void *opaque;
- struct SaveStateEntry *next;
-} SaveStateEntry;
-
-static SaveStateEntry *first_se;
-
-/* TODO: Individual devices generally have very little idea about the rest
- of the system, so instance_id should be removed/replaced.
- Meanwhile pass -1 as instance_id if you do not already have a clearly
- distinguishing id for all instances of your device class. */
-int register_savevm_live(const char *idstr,
- int instance_id,
- int version_id,
- SaveLiveStateHandler *save_live_state,
- SaveStateHandler *save_state,
- LoadStateHandler *load_state,
- void *opaque)
-{
- SaveStateEntry *se, **pse;
- static int global_section_id;
-
- se = qemu_malloc(sizeof(SaveStateEntry));
- if (!se)
- return -1;
- pstrcpy(se->idstr, sizeof(se->idstr), idstr);
- se->instance_id = (instance_id == -1) ? 0 : instance_id;
- se->version_id = version_id;
- se->section_id = global_section_id++;
- se->save_live_state = save_live_state;
- se->save_state = save_state;
- se->load_state = load_state;
- se->opaque = opaque;
- se->next = NULL;
-
- /* add at the end of list */
- pse = &first_se;
- while (*pse != NULL) {
- if (instance_id == -1
- && strcmp(se->idstr, (*pse)->idstr) == 0
- && se->instance_id <= (*pse)->instance_id)
- se->instance_id = (*pse)->instance_id + 1;
- pse = &(*pse)->next;
- }
- *pse = se;
- return 0;
-}
-
-int register_savevm(const char *idstr,
- int instance_id,
- int version_id,
- SaveStateHandler *save_state,
- LoadStateHandler *load_state,
- void *opaque)
-{
- return register_savevm_live(idstr, instance_id, version_id,
- NULL, save_state, load_state, opaque);
-}
-
-#define QEMU_VM_FILE_MAGIC 0x5145564d
-#define QEMU_VM_FILE_VERSION_COMPAT 0x00000002
-#define QEMU_VM_FILE_VERSION 0x00000003
-
-#define QEMU_VM_EOF 0x00
-#define QEMU_VM_SECTION_START 0x01
-#define QEMU_VM_SECTION_PART 0x02
-#define QEMU_VM_SECTION_END 0x03
-#define QEMU_VM_SECTION_FULL 0x04
-
-int qemu_savevm_state_begin(QEMUFile *f)
-{
- SaveStateEntry *se;
-
- qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
- qemu_put_be32(f, QEMU_VM_FILE_VERSION);
-
- for (se = first_se; se != NULL; se = se->next) {
- int len;
-
- if (se->save_live_state == NULL)
- continue;
-
- /* Section type */
- qemu_put_byte(f, QEMU_VM_SECTION_START);
- qemu_put_be32(f, se->section_id);
-
- /* ID string */
- len = strlen(se->idstr);
- qemu_put_byte(f, len);
- qemu_put_buffer(f, (uint8_t *)se->idstr, len);
-
- qemu_put_be32(f, se->instance_id);
- qemu_put_be32(f, se->version_id);
-
- se->save_live_state(f, QEMU_VM_SECTION_START, se->opaque);
- }
-
- if (qemu_file_has_error(f))
- return -EIO;
-
- return 0;
-}
-
-int qemu_savevm_state_iterate(QEMUFile *f)
-{
- SaveStateEntry *se;
- int ret = 1;
-
- for (se = first_se; se != NULL; se = se->next) {
- if (se->save_live_state == NULL)
- continue;
-
- /* Section type */
- qemu_put_byte(f, QEMU_VM_SECTION_PART);
- qemu_put_be32(f, se->section_id);
-
- ret &= !!se->save_live_state(f, QEMU_VM_SECTION_PART, se->opaque);
- }
-
- if (ret)
- return 1;
-
- if (qemu_file_has_error(f))
- return -EIO;
-
- return 0;
-}
-
-int qemu_savevm_state_complete(QEMUFile *f)
-{
- SaveStateEntry *se;
-
- for (se = first_se; se != NULL; se = se->next) {
- if (se->save_live_state == NULL)
- continue;
-
- /* Section type */
- qemu_put_byte(f, QEMU_VM_SECTION_END);
- qemu_put_be32(f, se->section_id);
-
- se->save_live_state(f, QEMU_VM_SECTION_END, se->opaque);
- }
-
- for(se = first_se; se != NULL; se = se->next) {
- int len;
-
- if (se->save_state == NULL)
- continue;
-
- /* Section type */
- qemu_put_byte(f, QEMU_VM_SECTION_FULL);
- qemu_put_be32(f, se->section_id);
-
- /* ID string */
- len = strlen(se->idstr);
- qemu_put_byte(f, len);
- qemu_put_buffer(f, (uint8_t *)se->idstr, len);
-
- qemu_put_be32(f, se->instance_id);
- qemu_put_be32(f, se->version_id);
-
- se->save_state(f, se->opaque);
- }
-
- qemu_put_byte(f, QEMU_VM_EOF);
-
- if (qemu_file_has_error(f))
- return -EIO;
-
- return 0;
-}
-
-int qemu_savevm_state(QEMUFile *f)
-{
- int saved_vm_running;
- int ret;
-
- saved_vm_running = vm_running;
- vm_stop(0);
-
- bdrv_flush_all();
-
- ret = qemu_savevm_state_begin(f);
- if (ret < 0)
- goto out;
-
- do {
- ret = qemu_savevm_state_iterate(f);
- if (ret < 0)
- goto out;
- } while (ret == 0);
-
- ret = qemu_savevm_state_complete(f);
-
-out:
- if (qemu_file_has_error(f))
- ret = -EIO;
-
- if (!ret && saved_vm_running)
- vm_start();
-
- return ret;
-}
-
-static SaveStateEntry *find_se(const char *idstr, int instance_id)
-{
- SaveStateEntry *se;
-
- for(se = first_se; se != NULL; se = se->next) {
- if (!strcmp(se->idstr, idstr) &&
- instance_id == se->instance_id)
- return se;
- }
- return NULL;
-}
-
-typedef struct LoadStateEntry {
- SaveStateEntry *se;
- int section_id;
- int version_id;
- struct LoadStateEntry *next;
-} LoadStateEntry;
-
-static int qemu_loadvm_state_v2(QEMUFile *f)
-{
- SaveStateEntry *se;
- int len, ret, instance_id, record_len, version_id;
- int64_t total_len, end_pos, cur_pos;
- char idstr[256];
-
- total_len = qemu_get_be64(f);
- end_pos = total_len + qemu_ftell(f);
- for(;;) {
- if (qemu_ftell(f) >= end_pos)
- break;
- len = qemu_get_byte(f);
- qemu_get_buffer(f, (uint8_t *)idstr, len);
- idstr[len] = '\0';
- instance_id = qemu_get_be32(f);
- version_id = qemu_get_be32(f);
- record_len = qemu_get_be32(f);
- cur_pos = qemu_ftell(f);
- se = find_se(idstr, instance_id);
- if (!se) {
- fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
- instance_id, idstr);
- } else {
- ret = se->load_state(f, se->opaque, version_id);
- if (ret < 0) {
- fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
- instance_id, idstr);
- }
- }
- /* always seek to exact end of record */
- qemu_fseek(f, cur_pos + record_len, SEEK_SET);
- }
-
- if (qemu_file_has_error(f))
- return -EIO;
-
- return 0;
-}
-
-int qemu_loadvm_state(QEMUFile *f)
-{
- LoadStateEntry *first_le = NULL;
- uint8_t section_type;
- unsigned int v;
- int ret;
-
- v = qemu_get_be32(f);
- if (v != QEMU_VM_FILE_MAGIC)
- return -EINVAL;
-
- v = qemu_get_be32(f);
- if (v == QEMU_VM_FILE_VERSION_COMPAT)
- return qemu_loadvm_state_v2(f);
- if (v != QEMU_VM_FILE_VERSION)
- return -ENOTSUP;
-
- while ((section_type = qemu_get_byte(f)) != QEMU_VM_EOF) {
- uint32_t instance_id, version_id, section_id;
- LoadStateEntry *le;
- SaveStateEntry *se;
- char idstr[257];
- int len;
-
- switch (section_type) {
- case QEMU_VM_SECTION_START:
- case QEMU_VM_SECTION_FULL:
- /* Read section start */
- section_id = qemu_get_be32(f);
- len = qemu_get_byte(f);
- qemu_get_buffer(f, (uint8_t *)idstr, len);
- idstr[len] = 0;
- instance_id = qemu_get_be32(f);
- version_id = qemu_get_be32(f);
-
- /* Find savevm section */
- se = find_se(idstr, instance_id);
- if (se == NULL) {
- fprintf(stderr, "Unknown savevm section or instance '%s' %d\n", idstr, instance_id);
- ret = -EINVAL;
- goto out;
- }
-
- /* Validate version */
- if (version_id > se->version_id) {
- fprintf(stderr, "savevm: unsupported version %d for '%s' v%d\n",
- version_id, idstr, se->version_id);
- ret = -EINVAL;
- goto out;
- }
-
- /* Add entry */
- le = qemu_mallocz(sizeof(*le));
- if (le == NULL) {
- ret = -ENOMEM;
- goto out;
- }
-
- le->se = se;
- le->section_id = section_id;
- le->version_id = version_id;
- le->next = first_le;
- first_le = le;
-
- le->se->load_state(f, le->se->opaque, le->version_id);
- break;
- case QEMU_VM_SECTION_PART:
- case QEMU_VM_SECTION_END:
- section_id = qemu_get_be32(f);
-
- for (le = first_le; le && le->section_id != section_id; le = le->next);
- if (le == NULL) {
- fprintf(stderr, "Unknown savevm section %d\n", section_id);
- ret = -EINVAL;
- goto out;
- }
-
- le->se->load_state(f, le->se->opaque, le->version_id);
- break;
- default:
- fprintf(stderr, "Unknown savevm section type %d\n", section_type);
- ret = -EINVAL;
- goto out;
- }
- }
-
- ret = 0;
-
-out:
- while (first_le) {
- LoadStateEntry *le = first_le;
- first_le = first_le->next;
- qemu_free(le);
- }
-
- if (qemu_file_has_error(f))
- ret = -EIO;
-
- return ret;
-}
-
-/* device can contain snapshots */
-static int bdrv_can_snapshot(BlockDriverState *bs)
-{
- return (bs &&
- !bdrv_is_removable(bs) &&
- !bdrv_is_read_only(bs));
-}
-
-/* device must be snapshots in order to have a reliable snapshot */
-static int bdrv_has_snapshot(BlockDriverState *bs)
-{
- return (bs &&
- !bdrv_is_removable(bs) &&
- !bdrv_is_read_only(bs));
-}
-
-static BlockDriverState *get_bs_snapshots(void)
-{
- BlockDriverState *bs;
- int i;
-
- if (bs_snapshots)
- return bs_snapshots;
- for(i = 0; i <= nb_drives; i++) {
- bs = drives_table[i].bdrv;
- if (bdrv_can_snapshot(bs))
- goto ok;
- }
- return NULL;
- ok:
- bs_snapshots = bs;
- return bs;
-}
-
-static int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
- const char *name)
-{
- QEMUSnapshotInfo *sn_tab, *sn;
- int nb_sns, i, ret;
-
- ret = -ENOENT;
- nb_sns = bdrv_snapshot_list(bs, &sn_tab);
- if (nb_sns < 0)
- return ret;
- for(i = 0; i < nb_sns; i++) {
- sn = &sn_tab[i];
- if (!strcmp(sn->id_str, name) || !strcmp(sn->name, name)) {
- *sn_info = *sn;
- ret = 0;
- break;
- }
- }
- qemu_free(sn_tab);
- return ret;
-}
-
-void do_savevm(const char *name)
-{
- BlockDriverState *bs, *bs1;
- QEMUSnapshotInfo sn1, *sn = &sn1, old_sn1, *old_sn = &old_sn1;
- int must_delete, ret, i;
- BlockDriverInfo bdi1, *bdi = &bdi1;
- QEMUFile *f;
- int saved_vm_running;
-#ifdef _WIN32
- struct _timeb tb;
-#else
- struct timeval tv;
-#endif
-
- bs = get_bs_snapshots();
- if (!bs) {
- term_printf("No block device can accept snapshots\n");
- return;
- }
-
- /* ??? Should this occur after vm_stop? */
- qemu_aio_flush();
-
- saved_vm_running = vm_running;
- vm_stop(0);
-
- must_delete = 0;
- if (name) {
- ret = bdrv_snapshot_find(bs, old_sn, name);
- if (ret >= 0) {
- must_delete = 1;
- }
- }
- memset(sn, 0, sizeof(*sn));
- if (must_delete) {
- pstrcpy(sn->name, sizeof(sn->name), old_sn->name);
- pstrcpy(sn->id_str, sizeof(sn->id_str), old_sn->id_str);
- } else {
- if (name)
- pstrcpy(sn->name, sizeof(sn->name), name);
- }
-
- /* fill auxiliary fields */
-#ifdef _WIN32
- _ftime(&tb);
- sn->date_sec = tb.time;
- sn->date_nsec = tb.millitm * 1000000;
-#else
- gettimeofday(&tv, NULL);
- sn->date_sec = tv.tv_sec;
- sn->date_nsec = tv.tv_usec * 1000;
-#endif
- sn->vm_clock_nsec = qemu_get_clock(vm_clock);
-
- if (bdrv_get_info(bs, bdi) < 0 || bdi->vm_state_offset <= 0) {
- term_printf("Device %s does not support VM state snapshots\n",
- bdrv_get_device_name(bs));
- goto the_end;
- }
-
- /* save the VM state */
- f = qemu_fopen_bdrv(bs, bdi->vm_state_offset, 1);
- if (!f) {
- term_printf("Could not open VM state file\n");
- goto the_end;
- }
- ret = qemu_savevm_state(f);
- sn->vm_state_size = qemu_ftell(f);
- qemu_fclose(f);
- if (ret < 0) {
- term_printf("Error %d while writing VM\n", ret);
- goto the_end;
- }
-
- /* create the snapshots */
-
- for(i = 0; i < nb_drives; i++) {
- bs1 = drives_table[i].bdrv;
- if (bdrv_has_snapshot(bs1)) {
- if (must_delete) {
- ret = bdrv_snapshot_delete(bs1, old_sn->id_str);
- if (ret < 0) {
- term_printf("Error while deleting snapshot on '%s'\n",
- bdrv_get_device_name(bs1));
- }
- }
- ret = bdrv_snapshot_create(bs1, sn);
- if (ret < 0) {
- term_printf("Error while creating snapshot on '%s'\n",
- bdrv_get_device_name(bs1));
- }
- }
- }
-
- the_end:
- if (saved_vm_running)
- vm_start();
-}
-
-void do_loadvm(const char *name)
-{
- BlockDriverState *bs, *bs1;
- BlockDriverInfo bdi1, *bdi = &bdi1;
- QEMUFile *f;
- int i, ret;
- int saved_vm_running;
-
- bs = get_bs_snapshots();
- if (!bs) {
- term_printf("No block device supports snapshots\n");
- return;
- }
-
- /* Flush all IO requests so they don't interfere with the new state. */
- qemu_aio_flush();
-
- saved_vm_running = vm_running;
- vm_stop(0);
-
- for(i = 0; i <= nb_drives; i++) {
- bs1 = drives_table[i].bdrv;
- if (bdrv_has_snapshot(bs1)) {
- ret = bdrv_snapshot_goto(bs1, name);
- if (ret < 0) {
- if (bs != bs1)
- term_printf("Warning: ");
- switch(ret) {
- case -ENOTSUP:
- term_printf("Snapshots not supported on device '%s'\n",
- bdrv_get_device_name(bs1));
- break;
- case -ENOENT:
- term_printf("Could not find snapshot '%s' on device '%s'\n",
- name, bdrv_get_device_name(bs1));
- break;
- default:
- term_printf("Error %d while activating snapshot on '%s'\n",
- ret, bdrv_get_device_name(bs1));
- break;
- }
- /* fatal on snapshot block device */
- if (bs == bs1)
- goto the_end;
- }
- }
- }
-
- if (bdrv_get_info(bs, bdi) < 0 || bdi->vm_state_offset <= 0) {
- term_printf("Device %s does not support VM state snapshots\n",
- bdrv_get_device_name(bs));
- return;
- }
-
- /* restore the VM state */
- f = qemu_fopen_bdrv(bs, bdi->vm_state_offset, 0);
- if (!f) {
- term_printf("Could not open VM state file\n");
- goto the_end;
- }
- ret = qemu_loadvm_state(f);
- qemu_fclose(f);
- if (ret < 0) {
- term_printf("Error %d while loading VM state\n", ret);
- }
- the_end:
- if (saved_vm_running)
- vm_start();
-}
-
-void do_delvm(const char *name)
-{
- BlockDriverState *bs, *bs1;
- int i, ret;
-
- bs = get_bs_snapshots();
- if (!bs) {
- term_printf("No block device supports snapshots\n");
- return;
- }
-
- for(i = 0; i <= nb_drives; i++) {
- bs1 = drives_table[i].bdrv;
- if (bdrv_has_snapshot(bs1)) {
- ret = bdrv_snapshot_delete(bs1, name);
- if (ret < 0) {
- if (ret == -ENOTSUP)
- term_printf("Snapshots not supported on device '%s'\n",
- bdrv_get_device_name(bs1));
- else
- term_printf("Error %d while deleting snapshot on '%s'\n",
- ret, bdrv_get_device_name(bs1));
- }
- }
- }
-}
-
-void do_info_snapshots(void)
-{
- BlockDriverState *bs, *bs1;
- QEMUSnapshotInfo *sn_tab, *sn;
- int nb_sns, i;
- char buf[256];
-
- bs = get_bs_snapshots();
- if (!bs) {
- term_printf("No available block device supports snapshots\n");
- return;
- }
- term_printf("Snapshot devices:");
- for(i = 0; i <= nb_drives; i++) {
- bs1 = drives_table[i].bdrv;
- if (bdrv_has_snapshot(bs1)) {
- if (bs == bs1)
- term_printf(" %s", bdrv_get_device_name(bs1));
- }
- }
- term_printf("\n");
-
- nb_sns = bdrv_snapshot_list(bs, &sn_tab);
- if (nb_sns < 0) {
- term_printf("bdrv_snapshot_list: error %d\n", nb_sns);
- return;
- }
- term_printf("Snapshot list (from %s):\n", bdrv_get_device_name(bs));
- term_printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL));
- for(i = 0; i < nb_sns; i++) {
- sn = &sn_tab[i];
- term_printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn));
- }
- qemu_free(sn_tab);
-}
-
-/***********************************************************/
-/* ram save/restore */
-
-static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
-{
- int v;
-
- v = qemu_get_byte(f);
- switch(v) {
- case 0:
- if (qemu_get_buffer(f, buf, len) != len)
- return -EIO;
- break;
- case 1:
- v = qemu_get_byte(f);
- memset(buf, v, len);
- break;
- default:
- return -EINVAL;
- }
-
- if (qemu_file_has_error(f))
- return -EIO;
-
- return 0;
-}
-
-static int ram_load_v1(QEMUFile *f, void *opaque)
-{
- int ret;
- ram_addr_t i;
-
- if (qemu_get_be32(f) != phys_ram_size)
- return -EINVAL;
- for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
- ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
- if (ret)
- return ret;
- }
- return 0;
-}
-
-#define BDRV_HASH_BLOCK_SIZE 1024
-#define IOBUF_SIZE 4096
-#define RAM_CBLOCK_MAGIC 0xfabe
-
-typedef struct RamDecompressState {
- z_stream zstream;
- QEMUFile *f;
- uint8_t buf[IOBUF_SIZE];
-} RamDecompressState;
-
-static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
-{
- int ret;
- memset(s, 0, sizeof(*s));
- s->f = f;
- ret = inflateInit(&s->zstream);
- if (ret != Z_OK)
- return -1;
- return 0;
-}
-
-static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
-{
- int ret, clen;
-
- s->zstream.avail_out = len;
- s->zstream.next_out = buf;
- while (s->zstream.avail_out > 0) {
- if (s->zstream.avail_in == 0) {
- if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
- return -1;
- clen = qemu_get_be16(s->f);
- if (clen > IOBUF_SIZE)
- return -1;
- qemu_get_buffer(s->f, s->buf, clen);
- s->zstream.avail_in = clen;
- s->zstream.next_in = s->buf;
- }
- ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
- if (ret != Z_OK && ret != Z_STREAM_END) {
- return -1;
- }
- }
- return 0;
-}
-
-static void ram_decompress_close(RamDecompressState *s)
-{
- inflateEnd(&s->zstream);
-}
-
-#define RAM_SAVE_FLAG_FULL 0x01
-#define RAM_SAVE_FLAG_COMPRESS 0x02
-#define RAM_SAVE_FLAG_MEM_SIZE 0x04
-#define RAM_SAVE_FLAG_PAGE 0x08
-#define RAM_SAVE_FLAG_EOS 0x10
-
-static int is_dup_page(uint8_t *page, uint8_t ch)
-{
- uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
- uint32_t *array = (uint32_t *)page;
- int i;
-
- for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
- if (array[i] != val)
- return 0;
- }
-
- return 1;
-}
-
-static int ram_save_block(QEMUFile *f)
-{
- static ram_addr_t current_addr = 0;
- ram_addr_t saved_addr = current_addr;
- ram_addr_t addr = 0;
- int found = 0;
-
- while (addr < phys_ram_size) {
- if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
- uint8_t ch;
-
- cpu_physical_memory_reset_dirty(current_addr,
- current_addr + TARGET_PAGE_SIZE,
- MIGRATION_DIRTY_FLAG);
-
- ch = *(phys_ram_base + current_addr);
-
- if (is_dup_page(phys_ram_base + current_addr, ch)) {
- qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
- qemu_put_byte(f, ch);
- } else {
- qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
- qemu_put_buffer(f, phys_ram_base + current_addr, TARGET_PAGE_SIZE);
- }
+ if (is_dup_page(phys_ram_base + current_addr, ch)) {
+ qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
+ qemu_put_byte(f, ch);
+ } else {
+ qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
+ qemu_put_buffer(f, phys_ram_base + current_addr, TARGET_PAGE_SIZE);
+ }
found = 1;
break;
}
#ifdef _WIN32
-void host_main_loop_wait(int *timeout)
+static void host_main_loop_wait(int *timeout)
{
int ret, ret2, i;
PollingEntry *pe;
*timeout = 0;
}
#else
-void host_main_loop_wait(int *timeout)
+static void host_main_loop_wait(int *timeout)
{
}
#endif
/* poll any events */
/* XXX: separate device handlers from system ones */
- nfds = alarm_timer_rfd;
+ nfds = -1;
FD_ZERO(&rfds);
- FD_SET(alarm_timer_rfd, &rfds);
FD_ZERO(&wfds);
FD_ZERO(&xfds);
for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
}
#endif
- if (vm_running) {
- if (likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
+ /* 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 (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
- char byte;
- do {
- ret = read(alarm_timer_rfd, &byte, sizeof(byte));
- } while (ret != -1 || errno != EAGAIN);
-
- alarm_timer->flags &= ~(ALARM_FLAG_EXPIRED);
- qemu_rearm_alarm_timer(alarm_timer);
- }
-
/* Check bottom-halves last in case any of the earlier events triggered
them. */
qemu_bh_poll();
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 */
"-net none use it alone to have zero network devices; if no -net option\n"
" is provided, the default is '-net nic -net user'\n"
"\n"
+ "-bt hci,null Dumb bluetooth HCI - doesn't respond to commands\n"
+ "-bt hci,host[:id]\n"
+ " Use host's HCI with the given name\n"
+ "-bt hci[,vlan=n]\n"
+ " Emulate a standard HCI in virtual scatternet 'n'\n"
+ "-bt vhci[,vlan=n]\n"
+ " Add host computer to virtual scatternet 'n' using VHCI\n"
+ "-bt device:dev[,vlan=n]\n"
+ " Emulate a bluetooth device 'dev' in scatternet 'n'\n"
+ "\n"
#ifdef CONFIG_SLIRP
"-tftp dir allow tftp access to files in dir [-net user]\n"
"-bootp file advertise file in BOOTP replies\n"
#endif
#ifdef TARGET_I386
"-no-acpi disable ACPI\n"
+ "-no-hpet disable HPET\n"
#endif
#ifdef CONFIG_CURSES
"-curses use a curses/ncurses interface instead of SDL\n"
QEMU_OPTION_bootp,
QEMU_OPTION_smb,
QEMU_OPTION_redir,
+ QEMU_OPTION_bt,
QEMU_OPTION_kernel,
QEMU_OPTION_append,
QEMU_OPTION_smp,
QEMU_OPTION_vnc,
QEMU_OPTION_no_acpi,
+ QEMU_OPTION_no_hpet,
QEMU_OPTION_curses,
QEMU_OPTION_no_reboot,
QEMU_OPTION_no_shutdown,
#endif
{ "redir", HAS_ARG, QEMU_OPTION_redir },
#endif
+ { "bt", HAS_ARG, QEMU_OPTION_bt },
{ "kernel", HAS_ARG, QEMU_OPTION_kernel },
{ "append", HAS_ARG, QEMU_OPTION_append },
/* temporary options */
{ "usb", 0, QEMU_OPTION_usb },
{ "no-acpi", 0, QEMU_OPTION_no_acpi },
+ { "no-hpet", 0, QEMU_OPTION_no_hpet },
{ "no-reboot", 0, QEMU_OPTION_no_reboot },
{ "no-shutdown", 0, QEMU_OPTION_no_shutdown },
{ "show-cursor", 0, QEMU_OPTION_show_cursor },
#endif
-int main(int argc, char **argv)
+int main(int argc, char **argv, char **envp)
{
#ifdef CONFIG_GDBSTUB
int use_gdbstub;
int cyls, heads, secs, translation;
const char *net_clients[MAX_NET_CLIENTS];
int nb_net_clients;
+ const char *bt_opts[MAX_BT_CMDLINE];
+ int nb_bt_opts;
int hda_index;
int optind;
const char *r, *optarg;
int autostart;
const char *incoming = NULL;
+ qemu_cache_utils_init(envp);
+
LIST_INIT (&vm_change_state_head);
#ifndef _WIN32
{
usb_devices_index = 0;
nb_net_clients = 0;
+ nb_bt_opts = 0;
nb_drives = 0;
nb_drives_opt = 0;
hda_index = -1;
net_slirp_redir(optarg);
break;
#endif
+ case QEMU_OPTION_bt:
+ if (nb_bt_opts >= MAX_BT_CMDLINE) {
+ fprintf(stderr, "qemu: too many bluetooth options\n");
+ exit(1);
+ }
+ bt_opts[nb_bt_opts++] = optarg;
+ break;
#ifdef HAS_AUDIO
case QEMU_OPTION_audio_help:
AUD_help ();
case QEMU_OPTION_no_acpi:
acpi_enabled = 0;
break;
+ case QEMU_OPTION_no_hpet:
+ no_hpet = 1;
+ break;
case QEMU_OPTION_no_reboot:
no_reboot = 1;
break;
}
#endif
+ /* init the bluetooth world */
+ for (i = 0; i < nb_bt_opts; i++)
+ if (bt_parse(bt_opts[i]))
+ exit(1);
+
/* init the memory */
phys_ram_size = machine->ram_require & ~RAMSIZE_FIXED;
machine->init(ram_size, vga_ram_size, boot_devices, ds,
kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
+ /* Set KVM's vcpu state to qemu's initial CPUState. */
+ if (kvm_enabled()) {
+ int ret;
+
+ ret = kvm_sync_vcpus();
+ if (ret < 0) {
+ fprintf(stderr, "failed to initialize vcpus\n");
+ exit(1);
+ }
+ }
+
/* init USB devices */
if (usb_enabled) {
for(i = 0; i < usb_devices_index; i++) {
projects / qemu.git / blobdiff