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#ifndef FW_CFG_H
#define FW_CFG_H
#ifndef NO_QEMU_PROTOS
#include <stdint.h>
#include <stddef.h>
#include "exec/hwaddr.h"
#include "qemu/typedefs.h"
#endif
#define FW_CFG_SIGNATURE 0x00
#define FW_CFG_ID 0x01
#define FW_CFG_UUID 0x02
#define FW_CFG_RAM_SIZE 0x03
#define FW_CFG_NOGRAPHIC 0x04
#define FW_CFG_NB_CPUS 0x05
#define FW_CFG_MACHINE_ID 0x06
#define FW_CFG_KERNEL_ADDR 0x07
#define FW_CFG_KERNEL_SIZE 0x08
#define FW_CFG_KERNEL_CMDLINE 0x09
#define FW_CFG_INITRD_ADDR 0x0a
#define FW_CFG_INITRD_SIZE 0x0b
#define FW_CFG_BOOT_DEVICE 0x0c
#define FW_CFG_NUMA 0x0d
#define FW_CFG_BOOT_MENU 0x0e
#define FW_CFG_MAX_CPUS 0x0f
#define FW_CFG_KERNEL_ENTRY 0x10
#define FW_CFG_KERNEL_DATA 0x11
#define FW_CFG_INITRD_DATA 0x12
#define FW_CFG_CMDLINE_ADDR 0x13
#define FW_CFG_CMDLINE_SIZE 0x14
#define FW_CFG_CMDLINE_DATA 0x15
#define FW_CFG_SETUP_ADDR 0x16
#define FW_CFG_SETUP_SIZE 0x17
#define FW_CFG_SETUP_DATA 0x18
#define FW_CFG_FILE_DIR 0x19
#define FW_CFG_FILE_FIRST 0x20
#define FW_CFG_FILE_SLOTS 0x10
#define FW_CFG_MAX_ENTRY (FW_CFG_FILE_FIRST+FW_CFG_FILE_SLOTS)
#define FW_CFG_WRITE_CHANNEL 0x4000
#define FW_CFG_ARCH_LOCAL 0x8000
#define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL)
#define FW_CFG_INVALID 0xffff
#define FW_CFG_MAX_FILE_PATH 56
#ifndef NO_QEMU_PROTOS
typedef struct FWCfgFile {
uint32_t size; /* file size */
uint16_t select; /* write this to 0x510 to read it */
uint16_t reserved;
char name[FW_CFG_MAX_FILE_PATH];
} FWCfgFile;
typedef struct FWCfgFiles {
uint32_t count;
FWCfgFile f[];
} FWCfgFiles;
/* Control as first field allows for different structures selected by this
* field, which might be useful in the future
*/
typedef struct FWCfgDmaAccess {
uint32_t control;
uint32_t length;
uint64_t address;
} QEMU_PACKED FWCfgDmaAccess;
typedef void (*FWCfgCallback)(void *opaque, uint8_t *data);
typedef void (*FWCfgReadCallback)(void *opaque, uint32_t offset);
/**
* fw_cfg_add_bytes:
* @s: fw_cfg device being modified
* @key: selector key value for new fw_cfg item
* @data: pointer to start of item data
* @len: size of item data
*
* Add a new fw_cfg item, available by selecting the given key, as a raw
* "blob" of the given size. The data referenced by the starting pointer
* is only linked, NOT copied, into the data structure of the fw_cfg device.
*/
void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len);
/**
* fw_cfg_add_string:
* @s: fw_cfg device being modified
* @key: selector key value for new fw_cfg item
* @value: NUL-terminated ascii string
*
* Add a new fw_cfg item, available by selecting the given key. The item
* data will consist of a dynamically allocated copy of the provided string,
* including its NUL terminator.
*/
void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value);
/**
* fw_cfg_add_i16:
* @s: fw_cfg device being modified
* @key: selector key value for new fw_cfg item
* @value: 16-bit integer
*
* Add a new fw_cfg item, available by selecting the given key. The item
* data will consist of a dynamically allocated copy of the given 16-bit
* value, converted to little-endian representation.
*/
void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
/**
* fw_cfg_modify_i16:
* @s: fw_cfg device being modified
* @key: selector key value for new fw_cfg item
* @value: 16-bit integer
*
* Replace the fw_cfg item available by selecting the given key. The new
* data will consist of a dynamically allocated copy of the given 16-bit
* value, converted to little-endian representation. The data being replaced,
* assumed to have been dynamically allocated during an earlier call to
* either fw_cfg_add_i16() or fw_cfg_modify_i16(), is freed before returning.
*/
void fw_cfg_modify_i16(FWCfgState *s, uint16_t key, uint16_t value);
/**
* fw_cfg_add_i32:
* @s: fw_cfg device being modified
* @key: selector key value for new fw_cfg item
* @value: 32-bit integer
*
* Add a new fw_cfg item, available by selecting the given key. The item
* data will consist of a dynamically allocated copy of the given 32-bit
* value, converted to little-endian representation.
*/
void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
/**
* fw_cfg_add_i64:
* @s: fw_cfg device being modified
* @key: selector key value for new fw_cfg item
* @value: 64-bit integer
*
* Add a new fw_cfg item, available by selecting the given key. The item
* data will consist of a dynamically allocated copy of the given 64-bit
* value, converted to little-endian representation.
*/
void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);
/**
* fw_cfg_add_file:
* @s: fw_cfg device being modified
* @filename: name of new fw_cfg file item
* @data: pointer to start of item data
* @len: size of item data
*
* Add a new NAMED fw_cfg item as a raw "blob" of the given size. The data
* referenced by the starting pointer is only linked, NOT copied, into the
* data structure of the fw_cfg device.
* The next available (unused) selector key starting at FW_CFG_FILE_FIRST
* will be used; also, a new entry will be added to the file directory
* structure residing at key value FW_CFG_FILE_DIR, containing the item name,
* data size, and assigned selector key value.
*/
void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data,
size_t len);
/**
* fw_cfg_add_file_callback:
* @s: fw_cfg device being modified
* @filename: name of new fw_cfg file item
* @callback: callback function
* @callback_opaque: argument to be passed into callback function
* @data: pointer to start of item data
* @len: size of item data
*
* Add a new NAMED fw_cfg item as a raw "blob" of the given size. The data
* referenced by the starting pointer is only linked, NOT copied, into the
* data structure of the fw_cfg device.
* The next available (unused) selector key starting at FW_CFG_FILE_FIRST
* will be used; also, a new entry will be added to the file directory
* structure residing at key value FW_CFG_FILE_DIR, containing the item name,
* data size, and assigned selector key value.
* Additionally, set a callback function (and argument) to be called each
* time a byte is read by the guest from this particular item, or, in the
* case of DMA, each time a read or skip request overlaps with the valid
* offset range of the item.
* NOTE: In addition to the opaque argument set here, the callback function
* takes the current data offset as an additional argument, allowing it the
* option of only acting upon specific offset values (e.g., 0, before the
* first data byte of the selected item is returned to the guest).
*/
void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
FWCfgReadCallback callback, void *callback_opaque,
void *data, size_t len);
/**
* fw_cfg_modify_file:
* @s: fw_cfg device being modified
* @filename: name of new fw_cfg file item
* @data: pointer to start of item data
* @len: size of item data
*
* Replace a NAMED fw_cfg item. If an existing item is found, its callback
* information will be cleared, and a pointer to its data will be returned
* to the caller, so that it may be freed if necessary. If an existing item
* is not found, this call defaults to fw_cfg_add_file(), and NULL is
* returned to the caller.
* In either case, the new item data is only linked, NOT copied, into the
* data structure of the fw_cfg device.
*
* Returns: pointer to old item's data, or NULL if old item does not exist.
*/
void *fw_cfg_modify_file(FWCfgState *s, const char *filename, void *data,
size_t len);
FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase,
AddressSpace *dma_as);
FWCfgState *fw_cfg_init_io(uint32_t iobase);
FWCfgState *fw_cfg_init_mem(hwaddr ctl_addr, hwaddr data_addr);
FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr,
hwaddr data_addr, uint32_t data_width,
hwaddr dma_addr, AddressSpace *dma_as);
FWCfgState *fw_cfg_find(void);
#endif /* NO_QEMU_PROTOS */
#endif
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