diff --git a/hw/acpi/vmgenid.c b/hw/acpi/vmgenid.c index 2876d8a639..105044f666 100644 --- a/hw/acpi/vmgenid.c +++ b/hw/acpi/vmgenid.c @@ -124,7 +124,7 @@ void vmgenid_add_fw_cfg(VmGenIdState *vms, FWCfgState *s, GArray *guid) fw_cfg_add_file(s, VMGENID_GUID_FW_CFG_FILE, guid->data, VMGENID_FW_CFG_SIZE); /* Create a read-write fw_cfg file for Address */ - fw_cfg_add_file_callback(s, VMGENID_ADDR_FW_CFG_FILE, NULL, NULL, + fw_cfg_add_file_callback(s, VMGENID_ADDR_FW_CFG_FILE, NULL, NULL, NULL, vms->vmgenid_addr_le, ARRAY_SIZE(vms->vmgenid_addr_le), false); } diff --git a/hw/core/loader.c b/hw/core/loader.c index 4593061445..91669d65aa 100644 --- a/hw/core/loader.c +++ b/hw/core/loader.c @@ -1023,7 +1023,7 @@ MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len, } fw_cfg_add_file_callback(fw_cfg, fw_file_name, - fw_callback, callback_opaque, + fw_callback, NULL, callback_opaque, data, rom->datasize, read_only); } return mr; diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 2af37a9129..73519ab3ac 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2911,7 +2911,7 @@ void acpi_setup(void) build_state->rsdp = g_memdup(tables.rsdp->data, rsdp_size); fw_cfg_add_file_callback(pcms->fw_cfg, ACPI_BUILD_RSDP_FILE, - acpi_build_update, build_state, + acpi_build_update, NULL, build_state, build_state->rsdp, rsdp_size, true); build_state->rsdp_mr = NULL; } else { diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c index ac8416d42b..de8fbb7260 100644 --- a/hw/isa/lpc_ich9.c +++ b/hw/isa/lpc_ich9.c @@ -402,12 +402,12 @@ void ich9_lpc_pm_init(PCIDevice *lpc_pci, bool smm_enabled) * just link them into fw_cfg here. */ fw_cfg_add_file_callback(fw_cfg, "etc/smi/requested-features", - NULL, NULL, + NULL, NULL, NULL, lpc->smi_guest_features_le, sizeof lpc->smi_guest_features_le, false); fw_cfg_add_file_callback(fw_cfg, "etc/smi/features-ok", - smi_features_ok_callback, lpc, + smi_features_ok_callback, NULL, lpc, &lpc->smi_features_ok, sizeof lpc->smi_features_ok, true); diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c index e3bd626b8c..753ac0e4ea 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -56,6 +56,7 @@ struct FWCfgEntry { uint8_t *data; void *callback_opaque; FWCfgCallback select_cb; + FWCfgWriteCallback write_cb; }; #define JPG_FILE 0 @@ -370,6 +371,8 @@ static void fw_cfg_dma_transfer(FWCfgState *s) dma_memory_read(s->dma_as, dma.address, &e->data[s->cur_offset], len)) { dma.control |= FW_CFG_DMA_CTL_ERROR; + } else if (e->write_cb) { + e->write_cb(e->callback_opaque, s->cur_offset, len); } } @@ -570,6 +573,7 @@ static const VMStateDescription vmstate_fw_cfg = { static void fw_cfg_add_bytes_callback(FWCfgState *s, uint16_t key, FWCfgCallback select_cb, + FWCfgWriteCallback write_cb, void *callback_opaque, void *data, size_t len, bool read_only) @@ -584,6 +588,7 @@ static void fw_cfg_add_bytes_callback(FWCfgState *s, uint16_t key, s->entries[arch][key].data = data; s->entries[arch][key].len = (uint32_t)len; s->entries[arch][key].select_cb = select_cb; + s->entries[arch][key].write_cb = write_cb; s->entries[arch][key].callback_opaque = callback_opaque; s->entries[arch][key].allow_write = !read_only; } @@ -610,7 +615,7 @@ static void *fw_cfg_modify_bytes_read(FWCfgState *s, uint16_t key, void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len) { - fw_cfg_add_bytes_callback(s, key, NULL, NULL, data, len, true); + fw_cfg_add_bytes_callback(s, key, NULL, NULL, NULL, data, len, true); } void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value) @@ -737,6 +742,7 @@ static int get_fw_cfg_order(FWCfgState *s, const char *name) void fw_cfg_add_file_callback(FWCfgState *s, const char *filename, FWCfgCallback select_cb, + FWCfgWriteCallback write_cb, void *callback_opaque, void *data, size_t len, bool read_only) { @@ -800,7 +806,7 @@ void fw_cfg_add_file_callback(FWCfgState *s, const char *filename, } fw_cfg_add_bytes_callback(s, FW_CFG_FILE_FIRST + index, - select_cb, + select_cb, write_cb, callback_opaque, data, len, read_only); @@ -815,7 +821,7 @@ void fw_cfg_add_file_callback(FWCfgState *s, const char *filename, void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data, size_t len) { - fw_cfg_add_file_callback(s, filename, NULL, NULL, data, len, true); + fw_cfg_add_file_callback(s, filename, NULL, NULL, NULL, data, len, true); } void *fw_cfg_modify_file(FWCfgState *s, const char *filename, @@ -838,7 +844,7 @@ void *fw_cfg_modify_file(FWCfgState *s, const char *filename, } } /* add new one */ - fw_cfg_add_file_callback(s, filename, NULL, NULL, data, len, true); + fw_cfg_add_file_callback(s, filename, NULL, NULL, NULL, data, len, true); return NULL; } diff --git a/include/hw/nvram/fw_cfg.h b/include/hw/nvram/fw_cfg.h index f50d068563..7ccbae5fba 100644 --- a/include/hw/nvram/fw_cfg.h +++ b/include/hw/nvram/fw_cfg.h @@ -45,6 +45,7 @@ typedef struct FWCfgDmaAccess { } QEMU_PACKED FWCfgDmaAccess; typedef void (*FWCfgCallback)(void *opaque); +typedef void (*FWCfgWriteCallback)(void *opaque, off_t start, size_t len); struct FWCfgState { /*< private >*/ @@ -183,6 +184,7 @@ void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data, * @s: fw_cfg device being modified * @filename: name of new fw_cfg file item * @select_cb: callback function when selecting + * @write_cb: callback function after a write * @callback_opaque: argument to be passed into callback function * @data: pointer to start of item data * @len: size of item data @@ -202,6 +204,7 @@ void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data, */ void fw_cfg_add_file_callback(FWCfgState *s, const char *filename, FWCfgCallback select_cb, + FWCfgWriteCallback write_cb, void *callback_opaque, void *data, size_t len, bool read_only);