[qemu.git] / hw / fw_cfg.c

/*
 * QEMU Firmware configuration device emulation
 *
 * Copyright (c) 2008 Gleb Natapov
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "hw.h"
#include "sysemu.h"
#include "isa.h"
#include "fw_cfg.h"

/* debug firmware config */
//#define DEBUG_FW_CFG

#ifdef DEBUG_FW_CFG
#define FW_CFG_DPRINTF(fmt, ...)                        \
    do { printf("FW_CFG: " fmt , ## __VA_ARGS__); } while (0)
#else
#define FW_CFG_DPRINTF(fmt, ...)
#endif

#define FW_CFG_SIZE 2

typedef struct FWCfgEntry {
    uint32_t len;
    uint8_t *data;
    void *callback_opaque;
    FWCfgCallback callback;
} FWCfgEntry;

struct FWCfgState {
    FWCfgEntry entries[2][FW_CFG_MAX_ENTRY];
    FWCfgFiles *files;
    uint16_t cur_entry;
    uint32_t cur_offset;
};

static void fw_cfg_write(FWCfgState *s, uint8_t value)
{
    int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
    FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK];

    FW_CFG_DPRINTF("write %d\n", value);

    if (s->cur_entry & FW_CFG_WRITE_CHANNEL && s->cur_offset < e->len) {
        e->data[s->cur_offset++] = value;
        if (s->cur_offset == e->len) {
            e->callback(e->callback_opaque, e->data);
            s->cur_offset = 0;
        }
    }
}

static int fw_cfg_select(FWCfgState *s, uint16_t key)
{
    int ret;

    s->cur_offset = 0;
    if ((key & FW_CFG_ENTRY_MASK) >= FW_CFG_MAX_ENTRY) {
        s->cur_entry = FW_CFG_INVALID;
        ret = 0;
    } else {
        s->cur_entry = key;
        ret = 1;
    }

    FW_CFG_DPRINTF("select key %d (%sfound)\n", key, ret ? "" : "not ");

    return ret;
}

static uint8_t fw_cfg_read(FWCfgState *s)
{
    int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
    FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK];
    uint8_t ret;

    if (s->cur_entry == FW_CFG_INVALID || !e->data || s->cur_offset >= e->len)
        ret = 0;
    else
        ret = e->data[s->cur_offset++];

    FW_CFG_DPRINTF("read %d\n", ret);

    return ret;
}

static uint32_t fw_cfg_io_readb(void *opaque, uint32_t addr)
{
    return fw_cfg_read(opaque);
}

static void fw_cfg_io_writeb(void *opaque, uint32_t addr, uint32_t value)
{
    fw_cfg_write(opaque, (uint8_t)value);
}

static void fw_cfg_io_writew(void *opaque, uint32_t addr, uint32_t value)
{
    fw_cfg_select(opaque, (uint16_t)value);
}

static uint32_t fw_cfg_mem_readb(void *opaque, target_phys_addr_t addr)
{
    return fw_cfg_read(opaque);
}

static void fw_cfg_mem_writeb(void *opaque, target_phys_addr_t addr,
                              uint32_t value)
{
    fw_cfg_write(opaque, (uint8_t)value);
}

static void fw_cfg_mem_writew(void *opaque, target_phys_addr_t addr,
                              uint32_t value)
{
    fw_cfg_select(opaque, (uint16_t)value);
}

static CPUReadMemoryFunc * const fw_cfg_ctl_mem_read[3] = {
    NULL,
    NULL,
    NULL,
};

static CPUWriteMemoryFunc * const fw_cfg_ctl_mem_write[3] = {
    NULL,
    fw_cfg_mem_writew,
    NULL,
};

static CPUReadMemoryFunc * const fw_cfg_data_mem_read[3] = {
    fw_cfg_mem_readb,
    NULL,
    NULL,
};

static CPUWriteMemoryFunc * const fw_cfg_data_mem_write[3] = {
    fw_cfg_mem_writeb,
    NULL,
    NULL,
};

static void fw_cfg_reset(void *opaque)
{
    FWCfgState *s = opaque;

    fw_cfg_select(s, 0);
}

/* Save restore 32 bit int as uint16_t
   This is a Big hack, but it is how the old state did it.
   Or we broke compatibility in the state, or we can't use struct tm
 */

static int get_uint32_as_uint16(QEMUFile *f, void *pv, size_t size)
{
    uint32_t *v = pv;
    *v = qemu_get_be16(f);
    return 0;
}

static void put_unused(QEMUFile *f, void *pv, size_t size)
{
    fprintf(stderr, "uint32_as_uint16 is only used for backward compatibility.\n");
    fprintf(stderr, "This functions shouldn't be called.\n");
}

static const VMStateInfo vmstate_hack_uint32_as_uint16 = {
    .name = "int32_as_uint16",
    .get  = get_uint32_as_uint16,
    .put  = put_unused,
};

#define VMSTATE_UINT16_HACK(_f, _s, _t)                                    \
    VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint32_as_uint16, uint32_t)


static bool is_version_1(void *opaque, int version_id)
{
    return version_id == 1;
}

static const VMStateDescription vmstate_fw_cfg = {
    .name = "fw_cfg",
    .version_id = 2,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_UINT16(cur_entry, FWCfgState),
        VMSTATE_UINT16_HACK(cur_offset, FWCfgState, is_version_1),
        VMSTATE_UINT32_V(cur_offset, FWCfgState, 2),
        VMSTATE_END_OF_LIST()
    }
};

int fw_cfg_add_bytes(FWCfgState *s, uint16_t key, uint8_t *data, uint32_t len)
{
    int arch = !!(key & FW_CFG_ARCH_LOCAL);

    key &= FW_CFG_ENTRY_MASK;

    if (key >= FW_CFG_MAX_ENTRY)
        return 0;

    s->entries[arch][key].data = data;
    s->entries[arch][key].len = len;

    return 1;
}

int fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value)
{
    uint16_t *copy;

    copy = qemu_malloc(sizeof(value));
    *copy = cpu_to_le16(value);
    return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
}

int fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value)
{
    uint32_t *copy;

    copy = qemu_malloc(sizeof(value));
    *copy = cpu_to_le32(value);
    return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
}

int fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value)
{
    uint64_t *copy;

    copy = qemu_malloc(sizeof(value));
    *copy = cpu_to_le64(value);
    return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
}

int fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
                        void *callback_opaque, uint8_t *data, size_t len)
{
    int arch = !!(key & FW_CFG_ARCH_LOCAL);

    if (!(key & FW_CFG_WRITE_CHANNEL))
        return 0;

    key &= FW_CFG_ENTRY_MASK;

    if (key >= FW_CFG_MAX_ENTRY || len > 65535)
        return 0;

    s->entries[arch][key].data = data;
    s->entries[arch][key].len = len;
    s->entries[arch][key].callback_opaque = callback_opaque;
    s->entries[arch][key].callback = callback;

    return 1;
}

int fw_cfg_add_file(FWCfgState *s,  const char *dir, const char *filename,
                    uint8_t *data, uint32_t len)
{
    const char *basename;
    int i, index;

    if (!s->files) {
        int dsize = sizeof(uint32_t) + sizeof(FWCfgFile) * FW_CFG_FILE_SLOTS;
        s->files = qemu_mallocz(dsize);
        fw_cfg_add_bytes(s, FW_CFG_FILE_DIR, (uint8_t*)s->files, dsize);
    }

    index = be32_to_cpu(s->files->count);
    if (index == FW_CFG_FILE_SLOTS) {
        fprintf(stderr, "fw_cfg: out of file slots\n");
        return 0;
    }

    fw_cfg_add_bytes(s, FW_CFG_FILE_FIRST + index, data, len);

    basename = strrchr(filename, '/');
    if (basename) {
        basename++;
    } else {
        basename = filename;
    }

    snprintf(s->files->f[index].name, sizeof(s->files->f[index].name),
             "%s/%s", dir, basename);
    for (i = 0; i < index; i++) {
        if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) {
            FW_CFG_DPRINTF("%s: skip duplicate: %s\n", __FUNCTION__,
                           s->files->f[index].name);
            return 1;
        }
    }

    s->files->f[index].size   = cpu_to_be32(len);
    s->files->f[index].select = cpu_to_be16(FW_CFG_FILE_FIRST + index);
    FW_CFG_DPRINTF("%s: #%d: %s (%d bytes)\n", __FUNCTION__,
                   index, s->files->f[index].name, len);

    s->files->count = cpu_to_be32(index+1);
    return 1;
}

FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
                        target_phys_addr_t ctl_addr, target_phys_addr_t data_addr)
{
    FWCfgState *s;
    int io_ctl_memory, io_data_memory;

    s = qemu_mallocz(sizeof(FWCfgState));

    if (ctl_port) {
        register_ioport_write(ctl_port, 2, 2, fw_cfg_io_writew, s);
    }
    if (data_port) {
        register_ioport_read(data_port, 1, 1, fw_cfg_io_readb, s);
        register_ioport_write(data_port, 1, 1, fw_cfg_io_writeb, s);
    }
    if (ctl_addr) {
        io_ctl_memory = cpu_register_io_memory(fw_cfg_ctl_mem_read,
                                           fw_cfg_ctl_mem_write, s);
        cpu_register_physical_memory(ctl_addr, FW_CFG_SIZE, io_ctl_memory);
    }
    if (data_addr) {
        io_data_memory = cpu_register_io_memory(fw_cfg_data_mem_read,
                                           fw_cfg_data_mem_write, s);
        cpu_register_physical_memory(data_addr, FW_CFG_SIZE, io_data_memory);
    }
    fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (uint8_t *)"QEMU", 4);
    fw_cfg_add_bytes(s, FW_CFG_UUID, qemu_uuid, 16);
    fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)(display_type == DT_NOGRAPHIC));
    fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
    fw_cfg_add_i16(s, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
    fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu);

    vmstate_register(-1, &vmstate_fw_cfg, s);
    qemu_register_reset(fw_cfg_reset, s);

    return s;
}
Commit	Line	Data
3cce6243 BS	1	/*
	2	* QEMU Firmware configuration device emulation
	3	*
	4	* Copyright (c) 2008 Gleb Natapov
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24	#include "hw.h"
084a197a	25	#include "sysemu.h"
3cce6243 BS	26	#include "isa.h"
	27	#include "fw_cfg.h"
	28
	29	/* debug firmware config */
	30	//#define DEBUG_FW_CFG
	31
	32	#ifdef DEBUG_FW_CFG
001faf32 BS	33	#define FW_CFG_DPRINTF(fmt, ...) \
001faf32 BS	34	do { printf("FW_CFG: " fmt , ## __VA_ARGS__); } while (0)
3cce6243	35	#else
001faf32	36	#define FW_CFG_DPRINTF(fmt, ...)
3cce6243 BS	37	#endif
	38
	39	#define FW_CFG_SIZE 2
	40
b96ae2da	41	typedef struct FWCfgEntry {
ff06108b	42	uint32_t len;
3cce6243 BS	43	uint8_t *data;
	44	void *callback_opaque;
	45	FWCfgCallback callback;
	46	} FWCfgEntry;
	47
b96ae2da	48	struct FWCfgState {
3cce6243	49	FWCfgEntry entries[2][FW_CFG_MAX_ENTRY];
abe147e0	50	FWCfgFiles *files;
3cce6243	51	uint16_t cur_entry;
ff06108b	52	uint32_t cur_offset;
c2b5bda4	53	};
3cce6243 BS	54
	55	static void fw_cfg_write(FWCfgState *s, uint8_t value)
	56	{
	57	int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
	58	FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK];
	59
	60	FW_CFG_DPRINTF("write %d\n", value);
	61
	62	if (s->cur_entry & FW_CFG_WRITE_CHANNEL && s->cur_offset < e->len) {
	63	e->data[s->cur_offset++] = value;
	64	if (s->cur_offset == e->len) {
	65	e->callback(e->callback_opaque, e->data);
	66	s->cur_offset = 0;
	67	}
	68	}
	69	}
	70
	71	static int fw_cfg_select(FWCfgState *s, uint16_t key)
	72	{
	73	int ret;
	74
	75	s->cur_offset = 0;
	76	if ((key & FW_CFG_ENTRY_MASK) >= FW_CFG_MAX_ENTRY) {
	77	s->cur_entry = FW_CFG_INVALID;
	78	ret = 0;
	79	} else {
	80	s->cur_entry = key;
	81	ret = 1;
	82	}
	83
	84	FW_CFG_DPRINTF("select key %d (%sfound)\n", key, ret ? "" : "not ");
	85
	86	return ret;
	87	}
	88
	89	static uint8_t fw_cfg_read(FWCfgState *s)
	90	{
	91	int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
	92	FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK];
	93	uint8_t ret;
	94
	95	if (s->cur_entry == FW_CFG_INVALID \|\| !e->data \|\| s->cur_offset >= e->len)
	96	ret = 0;
	97	else
	98	ret = e->data[s->cur_offset++];
	99
	100	FW_CFG_DPRINTF("read %d\n", ret);
	101
	102	return ret;
	103	}
	104
	105	static uint32_t fw_cfg_io_readb(void *opaque, uint32_t addr)
	106	{
	107	return fw_cfg_read(opaque);
	108	}
	109
	110	static void fw_cfg_io_writeb(void *opaque, uint32_t addr, uint32_t value)
	111	{
7442511c	112	fw_cfg_write(opaque, (uint8_t)value);
3cce6243 BS	113	}
	114
	115	static void fw_cfg_io_writew(void *opaque, uint32_t addr, uint32_t value)
	116	{
	117	fw_cfg_select(opaque, (uint16_t)value);
	118	}
	119
c227f099	120	static uint32_t fw_cfg_mem_readb(void *opaque, target_phys_addr_t addr)
3cce6243 BS	121	{
	122	return fw_cfg_read(opaque);
	123	}
	124
c227f099	125	static void fw_cfg_mem_writeb(void *opaque, target_phys_addr_t addr,
3cce6243 BS	126	uint32_t value)
3cce6243 BS	127	{
7442511c	128	fw_cfg_write(opaque, (uint8_t)value);
3cce6243 BS	129	}
3cce6243 BS	130
c227f099	131	static void fw_cfg_mem_writew(void *opaque, target_phys_addr_t addr,
3cce6243 BS	132	uint32_t value)
	133	{
	134	fw_cfg_select(opaque, (uint16_t)value);
	135	}
	136
d60efc6b	137	static CPUReadMemoryFunc * const fw_cfg_ctl_mem_read[3] = {
3cce6243 BS	138	NULL,
	139	NULL,
	140	NULL,
	141	};
	142
d60efc6b	143	static CPUWriteMemoryFunc * const fw_cfg_ctl_mem_write[3] = {
3cce6243 BS	144	NULL,
	145	fw_cfg_mem_writew,
	146	NULL,
	147	};
	148
d60efc6b	149	static CPUReadMemoryFunc * const fw_cfg_data_mem_read[3] = {
3cce6243 BS	150	fw_cfg_mem_readb,
	151	NULL,
	152	NULL,
	153	};
	154
d60efc6b	155	static CPUWriteMemoryFunc * const fw_cfg_data_mem_write[3] = {
3cce6243 BS	156	fw_cfg_mem_writeb,
	157	NULL,
	158	NULL,
	159	};
	160
	161	static void fw_cfg_reset(void *opaque)
	162	{
	163	FWCfgState *s = opaque;
	164
	165	fw_cfg_select(s, 0);
	166	}
	167
ff06108b JQ	168	/* Save restore 32 bit int as uint16_t
	169	This is a Big hack, but it is how the old state did it.
	170	Or we broke compatibility in the state, or we can't use struct tm
	171	*/
	172
	173	static int get_uint32_as_uint16(QEMUFile f, void pv, size_t size)
	174	{
	175	uint32_t *v = pv;
	176	*v = qemu_get_be16(f);
	177	return 0;
	178	}
	179
	180	static void put_unused(QEMUFile f, void pv, size_t size)
	181	{
66c80e75	182	fprintf(stderr, "uint32_as_uint16 is only used for backward compatibility.\n");
ff06108b JQ	183	fprintf(stderr, "This functions shouldn't be called.\n");
	184	}
	185
d05ac8fa	186	static const VMStateInfo vmstate_hack_uint32_as_uint16 = {
ff06108b JQ	187	.name = "int32_as_uint16",
	188	.get = get_uint32_as_uint16,
	189	.put = put_unused,
	190	};
	191
	192	#define VMSTATE_UINT16_HACK(_f, _s, _t) \
	193	VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint32_as_uint16, uint32_t)
	194
	195
	196	static bool is_version_1(void *opaque, int version_id)
	197	{
	198	return version_id == 1;
	199	}
	200
7d2edd40 JQ	201	static const VMStateDescription vmstate_fw_cfg = {
7d2edd40 JQ	202	.name = "fw_cfg",
ff06108b	203	.version_id = 2,
7d2edd40 JQ	204	.minimum_version_id = 1,
	205	.minimum_version_id_old = 1,
	206	.fields = (VMStateField []) {
	207	VMSTATE_UINT16(cur_entry, FWCfgState),
ff06108b JQ	208	VMSTATE_UINT16_HACK(cur_offset, FWCfgState, is_version_1),
ff06108b JQ	209	VMSTATE_UINT32_V(cur_offset, FWCfgState, 2),
7d2edd40 JQ	210	VMSTATE_END_OF_LIST()
	211	}
	212	};
3cce6243	213
c2b5bda4	214	int fw_cfg_add_bytes(FWCfgState s, uint16_t key, uint8_t data, uint32_t len)
3cce6243	215	{
3cce6243 BS	216	int arch = !!(key & FW_CFG_ARCH_LOCAL);
	217
	218	key &= FW_CFG_ENTRY_MASK;
	219
	220	if (key >= FW_CFG_MAX_ENTRY)
	221	return 0;
	222
	223	s->entries[arch][key].data = data;
	224	s->entries[arch][key].len = len;
	225
	226	return 1;
	227	}
	228
c2b5bda4	229	int fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value)
3cce6243 BS	230	{
	231	uint16_t *copy;
	232
	233	copy = qemu_malloc(sizeof(value));
3cce6243	234	*copy = cpu_to_le16(value);
c2b5bda4	235	return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
3cce6243 BS	236	}
3cce6243 BS	237
c2b5bda4	238	int fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value)
3cce6243 BS	239	{
	240	uint32_t *copy;
	241
	242	copy = qemu_malloc(sizeof(value));
3cce6243	243	*copy = cpu_to_le32(value);
c2b5bda4	244	return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
3cce6243 BS	245	}
3cce6243 BS	246
c2b5bda4	247	int fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value)
3cce6243 BS	248	{
	249	uint64_t *copy;
	250
	251	copy = qemu_malloc(sizeof(value));
3cce6243	252	*copy = cpu_to_le64(value);
c2b5bda4	253	return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value));
3cce6243 BS	254	}
3cce6243 BS	255
c2b5bda4	256	int fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
3cce6243 BS	257	void callback_opaque, uint8_t data, size_t len)
3cce6243 BS	258	{
3cce6243 BS	259	int arch = !!(key & FW_CFG_ARCH_LOCAL);
3cce6243 BS	260
85df0de4 BS	261	if (!(key & FW_CFG_WRITE_CHANNEL))
	262	return 0;
	263
3cce6243 BS	264	key &= FW_CFG_ENTRY_MASK;
3cce6243 BS	265
85df0de4	266	if (key >= FW_CFG_MAX_ENTRY \|\| len > 65535)
3cce6243 BS	267	return 0;
	268
	269	s->entries[arch][key].data = data;
	270	s->entries[arch][key].len = len;
	271	s->entries[arch][key].callback_opaque = callback_opaque;
	272	s->entries[arch][key].callback = callback;
	273
	274	return 1;
	275	}
	276
abe147e0 GH	277	int fw_cfg_add_file(FWCfgState s, const char dir, const char *filename,
	278	uint8_t *data, uint32_t len)
	279	{
	280	const char *basename;
de9352bc	281	int i, index;
abe147e0 GH	282
	283	if (!s->files) {
	284	int dsize = sizeof(uint32_t) + sizeof(FWCfgFile) * FW_CFG_FILE_SLOTS;
	285	s->files = qemu_mallocz(dsize);
	286	fw_cfg_add_bytes(s, FW_CFG_FILE_DIR, (uint8_t*)s->files, dsize);
	287	}
	288
	289	index = be32_to_cpu(s->files->count);
	290	if (index == FW_CFG_FILE_SLOTS) {
	291	fprintf(stderr, "fw_cfg: out of file slots\n");
	292	return 0;
	293	}
	294
	295	fw_cfg_add_bytes(s, FW_CFG_FILE_FIRST + index, data, len);
	296
	297	basename = strrchr(filename, '/');
	298	if (basename) {
	299	basename++;
	300	} else {
	301	basename = filename;
	302	}
de9352bc GH	303
	304	snprintf(s->files->f[index].name, sizeof(s->files->f[index].name),
	305	"%s/%s", dir, basename);
	306	for (i = 0; i < index; i++) {
	307	if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) {
	308	FW_CFG_DPRINTF("%s: skip duplicate: %s\n", __FUNCTION__,
	309	s->files->f[index].name);
	310	return 1;
	311	}
abe147e0	312	}
de9352bc	313
abe147e0 GH	314	s->files->f[index].size = cpu_to_be32(len);
	315	s->files->f[index].select = cpu_to_be16(FW_CFG_FILE_FIRST + index);
	316	FW_CFG_DPRINTF("%s: #%d: %s (%d bytes)\n", __FUNCTION__,
	317	index, s->files->f[index].name, len);
	318
	319	s->files->count = cpu_to_be32(index+1);
	320	return 1;
	321	}
	322
c2b5bda4 GH	323	FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port,
c2b5bda4 GH	324	target_phys_addr_t ctl_addr, target_phys_addr_t data_addr)
3cce6243 BS	325	{
	326	FWCfgState *s;
	327	int io_ctl_memory, io_data_memory;
	328
	329	s = qemu_mallocz(sizeof(FWCfgState));
3cce6243 BS	330
	331	if (ctl_port) {
	332	register_ioport_write(ctl_port, 2, 2, fw_cfg_io_writew, s);
	333	}
	334	if (data_port) {
	335	register_ioport_read(data_port, 1, 1, fw_cfg_io_readb, s);
	336	register_ioport_write(data_port, 1, 1, fw_cfg_io_writeb, s);
	337	}
	338	if (ctl_addr) {
1eed09cb	339	io_ctl_memory = cpu_register_io_memory(fw_cfg_ctl_mem_read,
3cce6243 BS	340	fw_cfg_ctl_mem_write, s);
	341	cpu_register_physical_memory(ctl_addr, FW_CFG_SIZE, io_ctl_memory);
	342	}
	343	if (data_addr) {
1eed09cb	344	io_data_memory = cpu_register_io_memory(fw_cfg_data_mem_read,
3cce6243 BS	345	fw_cfg_data_mem_write, s);
	346	cpu_register_physical_memory(data_addr, FW_CFG_SIZE, io_data_memory);
	347	}
	348	fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (uint8_t *)"QEMU", 4);
084a197a	349	fw_cfg_add_bytes(s, FW_CFG_UUID, qemu_uuid, 16);
993fbfdb	350	fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)(display_type == DT_NOGRAPHIC));
905fdcb5	351	fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
6be68d7e	352	fw_cfg_add_i16(s, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
95387491	353	fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu);
905fdcb5	354
7d2edd40	355	vmstate_register(-1, &vmstate_fw_cfg, s);
a08d4367	356	qemu_register_reset(fw_cfg_reset, s);
3cce6243 BS	357
	358	return s;
	359	}