qcow2: Make cache=writethrough default
[qemu-kvm/fedora.git] / sysemu.h
blob06dc4c6868b368c82ae0aabdf2d47102dd4d34a2
1 #ifndef SYSEMU_H
2 #define SYSEMU_H
3 /* Misc. things related to the system emulator. */
5 #include "qemu-common.h"
7 #ifdef _WIN32
8 #include <windows.h>
9 #endif
11 /* vl.c */
12 extern const char *bios_name;
14 #define QEMU_FILE_TYPE_BIOS 0
15 #define QEMU_FILE_TYPE_KEYMAP 1
16 char *qemu_find_file(int type, const char *name);
18 extern int vm_running;
19 extern const char *qemu_name;
20 extern uint8_t qemu_uuid[];
21 int qemu_uuid_parse(const char *str, uint8_t *uuid);
22 #define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-%02hhx%02hhx-%02hhx%02hhx-%02hhx%02hhx-%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx"
24 typedef struct vm_change_state_entry VMChangeStateEntry;
25 typedef void VMChangeStateHandler(void *opaque, int running, int reason);
27 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
28 void *opaque);
29 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e);
31 void vm_start(void);
32 void vm_stop(int reason);
34 uint64_t ram_bytes_remaining(void);
35 uint64_t ram_bytes_transferred(void);
36 uint64_t ram_bytes_total(void);
38 int64_t cpu_get_ticks(void);
39 void cpu_enable_ticks(void);
40 void cpu_disable_ticks(void);
42 void qemu_system_reset_request(void);
43 void qemu_system_shutdown_request(void);
44 void qemu_system_powerdown_request(void);
45 int qemu_shutdown_requested(void);
46 int qemu_reset_requested(void);
47 int qemu_powerdown_requested(void);
48 #ifdef NEED_CPU_H
49 #if !defined(TARGET_SPARC) && !defined(TARGET_I386)
50 // Please implement a power failure function to signal the OS
51 #define qemu_system_powerdown() do{}while(0)
52 #else
53 void qemu_system_powerdown(void);
54 #endif
55 #endif
56 void qemu_system_reset(void);
58 void do_savevm(Monitor *mon, const char *name);
59 void do_loadvm(Monitor *mon, const char *name);
60 void do_delvm(Monitor *mon, const char *name);
61 void do_info_snapshots(Monitor *mon);
63 void qemu_announce_self(void);
65 void main_loop_wait(int timeout);
67 int qemu_savevm_state_begin(QEMUFile *f);
68 int qemu_savevm_state_iterate(QEMUFile *f);
69 int qemu_savevm_state_complete(QEMUFile *f);
70 int qemu_savevm_state(QEMUFile *f);
71 int qemu_loadvm_state(QEMUFile *f);
73 #ifdef _WIN32
74 /* Polling handling */
76 /* return TRUE if no sleep should be done afterwards */
77 typedef int PollingFunc(void *opaque);
79 int qemu_add_polling_cb(PollingFunc *func, void *opaque);
80 void qemu_del_polling_cb(PollingFunc *func, void *opaque);
82 /* Wait objects handling */
83 typedef void WaitObjectFunc(void *opaque);
85 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);
86 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);
87 #endif
89 /* TAP win32 */
90 int tap_win32_init(VLANState *vlan, const char *model,
91 const char *name, const char *ifname);
93 /* SLIRP */
94 void do_info_slirp(Monitor *mon);
96 typedef enum DisplayType
98 DT_DEFAULT,
99 DT_CURSES,
100 DT_SDL,
101 DT_VNC,
102 DT_NOGRAPHIC,
103 } DisplayType;
105 extern int bios_size;
106 extern int cirrus_vga_enabled;
107 extern int std_vga_enabled;
108 extern int vmsvga_enabled;
109 extern int xenfb_enabled;
110 extern int graphic_width;
111 extern int graphic_height;
112 extern int graphic_depth;
113 extern DisplayType display_type;
114 extern const char *keyboard_layout;
115 extern int win2k_install_hack;
116 extern int rtc_td_hack;
117 extern int alt_grab;
118 extern int usb_enabled;
119 extern int virtio_balloon;
120 extern const char *virtio_balloon_devaddr;
121 extern int smp_cpus;
122 extern int cursor_hide;
123 extern int graphic_rotate;
124 extern int no_quit;
125 extern int semihosting_enabled;
126 extern int old_param;
128 #ifdef CONFIG_KQEMU
129 extern int kqemu_allowed;
130 #endif
132 #define MAX_NODES 64
133 extern int nb_numa_nodes;
134 extern uint64_t node_mem[MAX_NODES];
136 #define MAX_OPTION_ROMS 16
137 extern const char *option_rom[MAX_OPTION_ROMS];
138 extern int nb_option_roms;
140 #ifdef NEED_CPU_H
141 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
142 #define MAX_PROM_ENVS 128
143 extern const char *prom_envs[MAX_PROM_ENVS];
144 extern unsigned int nb_prom_envs;
145 #endif
146 #endif
148 typedef enum {
149 IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
150 IF_COUNT
151 } BlockInterfaceType;
153 typedef enum {
154 BLOCK_ERR_REPORT, BLOCK_ERR_IGNORE, BLOCK_ERR_STOP_ENOSPC,
155 BLOCK_ERR_STOP_ANY
156 } BlockInterfaceErrorAction;
158 #define BLOCK_SERIAL_STRLEN 20
160 typedef struct DriveInfo {
161 BlockDriverState *bdrv;
162 const char *devaddr;
163 BlockInterfaceType type;
164 int bus;
165 int unit;
166 int used;
167 int drive_opt_idx;
168 BlockInterfaceErrorAction onerror;
169 char serial[BLOCK_SERIAL_STRLEN + 1];
170 } DriveInfo;
172 #define MAX_IDE_DEVS 2
173 #define MAX_SCSI_DEVS 7
174 #define MAX_DRIVES 32
176 extern int nb_drives;
177 extern DriveInfo drives_table[MAX_DRIVES+1];
179 extern int drive_get_index(BlockInterfaceType type, int bus, int unit);
180 extern int drive_get_max_bus(BlockInterfaceType type);
181 extern void drive_uninit(BlockDriverState *bdrv);
182 extern void drive_remove(int index);
183 extern const char *drive_get_serial(BlockDriverState *bdrv);
184 extern BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv);
186 BlockDriverState *qdev_init_bdrv(DeviceState *dev, BlockInterfaceType type);
188 struct drive_opt {
189 const char *file;
190 char opt[1024];
191 int used;
194 extern struct drive_opt drives_opt[MAX_DRIVES];
195 extern int nb_drives_opt;
197 extern int drive_add(const char *file, const char *fmt, ...);
198 extern int drive_init(struct drive_opt *arg, int snapshot, void *machine);
200 /* acpi */
201 typedef void (*qemu_system_device_hot_add_t)(int pcibus, int slot, int state);
202 void qemu_system_device_hot_add_register(qemu_system_device_hot_add_t callback);
203 void qemu_system_device_hot_add(int pcibus, int slot, int state);
205 /* device-hotplug */
207 typedef int (dev_match_fn)(void *dev_private, void *arg);
209 int add_init_drive(const char *opts);
210 void destroy_nic(dev_match_fn *match_fn, void *arg);
211 void destroy_bdrvs(dev_match_fn *match_fn, void *arg);
213 /* pci-hotplug */
214 void pci_device_hot_add(Monitor *mon, const char *pci_addr, const char *type,
215 const char *opts);
216 void drive_hot_add(Monitor *mon, const char *pci_addr, const char *opts);
217 void pci_device_hot_remove(Monitor *mon, const char *pci_addr);
218 void pci_device_hot_remove_success(int pcibus, int slot);
220 /* serial ports */
222 #define MAX_SERIAL_PORTS 4
224 extern CharDriverState *serial_hds[MAX_SERIAL_PORTS];
226 /* parallel ports */
228 #define MAX_PARALLEL_PORTS 3
230 extern CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
232 /* virtio consoles */
234 #define MAX_VIRTIO_CONSOLES 1
236 extern CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
238 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
240 #ifdef NEED_CPU_H
241 /* loader.c */
242 int get_image_size(const char *filename);
243 int load_image(const char *filename, uint8_t *addr); /* deprecated */
244 int load_image_targphys(const char *filename, target_phys_addr_t, int max_sz);
245 int load_elf(const char *filename, int64_t address_offset,
246 uint64_t *pentry, uint64_t *lowaddr, uint64_t *highaddr);
247 int load_aout(const char *filename, target_phys_addr_t addr, int max_sz);
248 int load_uimage(const char *filename, target_ulong *ep, target_ulong *loadaddr,
249 int *is_linux);
251 int fread_targphys(target_phys_addr_t dst_addr, size_t nbytes, FILE *f);
252 int fread_targphys_ok(target_phys_addr_t dst_addr, size_t nbytes, FILE *f);
253 int read_targphys(int fd, target_phys_addr_t dst_addr, size_t nbytes);
254 void pstrcpy_targphys(target_phys_addr_t dest, int buf_size,
255 const char *source);
256 #endif
258 #ifdef HAS_AUDIO
259 struct soundhw {
260 const char *name;
261 const char *descr;
262 int enabled;
263 int isa;
264 union {
265 int (*init_isa) (qemu_irq *pic);
266 int (*init_pci) (PCIBus *bus);
267 } init;
270 extern struct soundhw soundhw[];
271 #endif
273 void do_usb_add(Monitor *mon, const char *devname);
274 void do_usb_del(Monitor *mon, const char *devname);
275 void usb_info(Monitor *mon);
277 int get_param_value(char *buf, int buf_size,
278 const char *tag, const char *str);
279 int get_next_param_value(char *buf, int buf_size,
280 const char *tag, const char **pstr);
281 int check_params(char *buf, int buf_size,
282 const char * const *params, const char *str);
284 void register_devices(void);
286 #endif