a4c0d1deb7
Based on the specifications on docs/specs/fw_cfg.txt This interface is an addon. The old interface can still be used as usual. Based on Gerd Hoffman's initial implementation. Signed-off-by: Marc Marí <markmb@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
#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);
|
|
|
|
void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len);
|
|
void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value);
|
|
void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
|
|
void fw_cfg_modify_i16(FWCfgState *s, uint16_t key, uint16_t value);
|
|
void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
|
|
void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);
|
|
void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data,
|
|
size_t len);
|
|
void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
|
|
FWCfgReadCallback callback, void *callback_opaque,
|
|
void *data, size_t len);
|
|
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
|