Revision ff06108b hw/fw_cfg.c
| b/hw/fw_cfg.c | ||
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| 39 | 39 |
#define FW_CFG_SIZE 2 |
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typedef struct _FWCfgEntry {
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uint16_t len;
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uint32_t len;
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uint8_t *data; |
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void *callback_opaque; |
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FWCfgCallback callback; |
| ... | ... | |
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typedef struct _FWCfgState {
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FWCfgEntry entries[2][FW_CFG_MAX_ENTRY]; |
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uint16_t cur_entry; |
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uint16_t cur_offset;
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uint32_t cur_offset;
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} FWCfgState; |
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static void fw_cfg_write(FWCfgState *s, uint8_t value) |
| ... | ... | |
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fw_cfg_select(s, 0); |
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} |
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/* Save restore 32 bit int as uint16_t |
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This is a Big hack, but it is how the old state did it. |
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Or we broke compatibility in the state, or we can't use struct tm |
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*/ |
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static int get_uint32_as_uint16(QEMUFile *f, void *pv, size_t size) |
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{
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uint32_t *v = pv; |
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*v = qemu_get_be16(f); |
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return 0; |
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} |
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static void put_unused(QEMUFile *f, void *pv, size_t size) |
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{
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fprintf(stderr, "uint32_as_uint16 is only used for backward compatibilty.\n"); |
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fprintf(stderr, "This functions shouldn't be called.\n"); |
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} |
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const VMStateInfo vmstate_hack_uint32_as_uint16 = {
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.name = "int32_as_uint16", |
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.get = get_uint32_as_uint16, |
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.put = put_unused, |
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}; |
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#define VMSTATE_UINT16_HACK(_f, _s, _t) \ |
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VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint32_as_uint16, uint32_t) |
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static bool is_version_1(void *opaque, int version_id) |
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{
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return version_id == 1; |
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} |
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static const VMStateDescription vmstate_fw_cfg = {
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.name = "fw_cfg", |
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.version_id = 1,
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.version_id = 2,
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.minimum_version_id = 1, |
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.minimum_version_id_old = 1, |
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.fields = (VMStateField []) {
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VMSTATE_UINT16(cur_entry, FWCfgState), |
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VMSTATE_UINT16(cur_offset, FWCfgState), |
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VMSTATE_UINT16_HACK(cur_offset, FWCfgState, is_version_1), |
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VMSTATE_UINT32_V(cur_offset, FWCfgState, 2), |
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VMSTATE_END_OF_LIST() |
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} |
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}; |
| 178 | 212 |
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int fw_cfg_add_bytes(void *opaque, uint16_t key, uint8_t *data, uint16_t len)
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int fw_cfg_add_bytes(void *opaque, uint16_t key, uint8_t *data, uint32_t len)
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{
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FWCfgState *s = opaque; |
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int arch = !!(key & FW_CFG_ARCH_LOCAL); |
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