8 #include "exec/hwaddr.h"
9 #include "qemu/typedefs.h"
12 #define FW_CFG_SIGNATURE 0x00
13 #define FW_CFG_ID 0x01
14 #define FW_CFG_UUID 0x02
15 #define FW_CFG_RAM_SIZE 0x03
16 #define FW_CFG_NOGRAPHIC 0x04
17 #define FW_CFG_NB_CPUS 0x05
18 #define FW_CFG_MACHINE_ID 0x06
19 #define FW_CFG_KERNEL_ADDR 0x07
20 #define FW_CFG_KERNEL_SIZE 0x08
21 #define FW_CFG_KERNEL_CMDLINE 0x09
22 #define FW_CFG_INITRD_ADDR 0x0a
23 #define FW_CFG_INITRD_SIZE 0x0b
24 #define FW_CFG_BOOT_DEVICE 0x0c
25 #define FW_CFG_NUMA 0x0d
26 #define FW_CFG_BOOT_MENU 0x0e
27 #define FW_CFG_MAX_CPUS 0x0f
28 #define FW_CFG_KERNEL_ENTRY 0x10
29 #define FW_CFG_KERNEL_DATA 0x11
30 #define FW_CFG_INITRD_DATA 0x12
31 #define FW_CFG_CMDLINE_ADDR 0x13
32 #define FW_CFG_CMDLINE_SIZE 0x14
33 #define FW_CFG_CMDLINE_DATA 0x15
34 #define FW_CFG_SETUP_ADDR 0x16
35 #define FW_CFG_SETUP_SIZE 0x17
36 #define FW_CFG_SETUP_DATA 0x18
37 #define FW_CFG_FILE_DIR 0x19
39 #define FW_CFG_FILE_FIRST 0x20
40 #define FW_CFG_FILE_SLOTS 0x10
41 #define FW_CFG_MAX_ENTRY (FW_CFG_FILE_FIRST+FW_CFG_FILE_SLOTS)
43 #define FW_CFG_WRITE_CHANNEL 0x4000
44 #define FW_CFG_ARCH_LOCAL 0x8000
45 #define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL)
47 #define FW_CFG_INVALID 0xffff
49 #define FW_CFG_MAX_FILE_PATH 56
51 #ifndef NO_QEMU_PROTOS
52 typedef struct FWCfgFile {
53 uint32_t size; /* file size */
54 uint16_t select; /* write this to 0x510 to read it */
56 char name[FW_CFG_MAX_FILE_PATH];
59 typedef struct FWCfgFiles {
64 /* Control as first field allows for different structures selected by this
65 * field, which might be useful in the future
67 typedef struct FWCfgDmaAccess {
71 } QEMU_PACKED FWCfgDmaAccess;
73 typedef void (*FWCfgReadCallback)(void *opaque);
77 * @s: fw_cfg device being modified
78 * @key: selector key value for new fw_cfg item
79 * @data: pointer to start of item data
80 * @len: size of item data
82 * Add a new fw_cfg item, available by selecting the given key, as a raw
83 * "blob" of the given size. The data referenced by the starting pointer
84 * is only linked, NOT copied, into the data structure of the fw_cfg device.
86 void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len);
90 * @s: fw_cfg device being modified
91 * @key: selector key value for new fw_cfg item
92 * @value: NUL-terminated ascii string
94 * Add a new fw_cfg item, available by selecting the given key. The item
95 * data will consist of a dynamically allocated copy of the provided string,
96 * including its NUL terminator.
98 void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value);
102 * @s: fw_cfg device being modified
103 * @key: selector key value for new fw_cfg item
104 * @value: 16-bit integer
106 * Add a new fw_cfg item, available by selecting the given key. The item
107 * data will consist of a dynamically allocated copy of the given 16-bit
108 * value, converted to little-endian representation.
110 void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value);
114 * @s: fw_cfg device being modified
115 * @key: selector key value for new fw_cfg item
116 * @value: 16-bit integer
118 * Replace the fw_cfg item available by selecting the given key. The new
119 * data will consist of a dynamically allocated copy of the given 16-bit
120 * value, converted to little-endian representation. The data being replaced,
121 * assumed to have been dynamically allocated during an earlier call to
122 * either fw_cfg_add_i16() or fw_cfg_modify_i16(), is freed before returning.
124 void fw_cfg_modify_i16(FWCfgState *s, uint16_t key, uint16_t value);
128 * @s: fw_cfg device being modified
129 * @key: selector key value for new fw_cfg item
130 * @value: 32-bit integer
132 * Add a new fw_cfg item, available by selecting the given key. The item
133 * data will consist of a dynamically allocated copy of the given 32-bit
134 * value, converted to little-endian representation.
136 void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value);
140 * @s: fw_cfg device being modified
141 * @key: selector key value for new fw_cfg item
142 * @value: 64-bit integer
144 * Add a new fw_cfg item, available by selecting the given key. The item
145 * data will consist of a dynamically allocated copy of the given 64-bit
146 * value, converted to little-endian representation.
148 void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value);
152 * @s: fw_cfg device being modified
153 * @filename: name of new fw_cfg file item
154 * @data: pointer to start of item data
155 * @len: size of item data
157 * Add a new NAMED fw_cfg item as a raw "blob" of the given size. The data
158 * referenced by the starting pointer is only linked, NOT copied, into the
159 * data structure of the fw_cfg device.
160 * The next available (unused) selector key starting at FW_CFG_FILE_FIRST
161 * will be used; also, a new entry will be added to the file directory
162 * structure residing at key value FW_CFG_FILE_DIR, containing the item name,
163 * data size, and assigned selector key value.
165 void fw_cfg_add_file(FWCfgState *s, const char *filename, void *data,
169 * fw_cfg_add_file_callback:
170 * @s: fw_cfg device being modified
171 * @filename: name of new fw_cfg file item
172 * @callback: callback function
173 * @callback_opaque: argument to be passed into callback function
174 * @data: pointer to start of item data
175 * @len: size of item data
177 * Add a new NAMED fw_cfg item as a raw "blob" of the given size. The data
178 * referenced by the starting pointer is only linked, NOT copied, into the
179 * data structure of the fw_cfg device.
180 * The next available (unused) selector key starting at FW_CFG_FILE_FIRST
181 * will be used; also, a new entry will be added to the file directory
182 * structure residing at key value FW_CFG_FILE_DIR, containing the item name,
183 * data size, and assigned selector key value.
184 * Additionally, set a callback function (and argument) to be called each
185 * time this item is selected (by having its selector key either written to
186 * the fw_cfg control register, or passed to QEMU in FWCfgDmaAccess.control
187 * with FW_CFG_DMA_CTL_SELECT).
189 void fw_cfg_add_file_callback(FWCfgState *s, const char *filename,
190 FWCfgReadCallback callback, void *callback_opaque,
191 void *data, size_t len);
194 * fw_cfg_modify_file:
195 * @s: fw_cfg device being modified
196 * @filename: name of new fw_cfg file item
197 * @data: pointer to start of item data
198 * @len: size of item data
200 * Replace a NAMED fw_cfg item. If an existing item is found, its callback
201 * information will be cleared, and a pointer to its data will be returned
202 * to the caller, so that it may be freed if necessary. If an existing item
203 * is not found, this call defaults to fw_cfg_add_file(), and NULL is
204 * returned to the caller.
205 * In either case, the new item data is only linked, NOT copied, into the
206 * data structure of the fw_cfg device.
208 * Returns: pointer to old item's data, or NULL if old item does not exist.
210 void *fw_cfg_modify_file(FWCfgState *s, const char *filename, void *data,
213 FWCfgState *fw_cfg_init_io_dma(uint32_t iobase, uint32_t dma_iobase,
214 AddressSpace *dma_as);
215 FWCfgState *fw_cfg_init_io(uint32_t iobase);
216 FWCfgState *fw_cfg_init_mem(hwaddr ctl_addr, hwaddr data_addr);
217 FWCfgState *fw_cfg_init_mem_wide(hwaddr ctl_addr,
218 hwaddr data_addr, uint32_t data_width,
219 hwaddr dma_addr, AddressSpace *dma_as);
221 FWCfgState *fw_cfg_find(void);
223 #endif /* NO_QEMU_PROTOS */