root / hw / fw_cfg.c @ 1de7afc9
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1 | 3cce6243 | blueswir1 | /*
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2 | 3cce6243 | blueswir1 | * QEMU Firmware configuration device emulation
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3 | 3cce6243 | blueswir1 | *
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4 | 3cce6243 | blueswir1 | * Copyright (c) 2008 Gleb Natapov
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5 | 3cce6243 | blueswir1 | *
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6 | 3cce6243 | blueswir1 | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 3cce6243 | blueswir1 | * of this software and associated documentation files (the "Software"), to deal
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8 | 3cce6243 | blueswir1 | * in the Software without restriction, including without limitation the rights
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9 | 3cce6243 | blueswir1 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 3cce6243 | blueswir1 | * copies of the Software, and to permit persons to whom the Software is
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11 | 3cce6243 | blueswir1 | * furnished to do so, subject to the following conditions:
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12 | 3cce6243 | blueswir1 | *
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13 | 3cce6243 | blueswir1 | * The above copyright notice and this permission notice shall be included in
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14 | 3cce6243 | blueswir1 | * all copies or substantial portions of the Software.
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15 | 3cce6243 | blueswir1 | *
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16 | 3cce6243 | blueswir1 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 3cce6243 | blueswir1 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 3cce6243 | blueswir1 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 3cce6243 | blueswir1 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 3cce6243 | blueswir1 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 3cce6243 | blueswir1 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 3cce6243 | blueswir1 | * THE SOFTWARE.
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23 | 3cce6243 | blueswir1 | */
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24 | 3cce6243 | blueswir1 | #include "hw.h" |
25 | 084a197a | blueswir1 | #include "sysemu.h" |
26 | 3cce6243 | blueswir1 | #include "isa.h" |
27 | 3cce6243 | blueswir1 | #include "fw_cfg.h" |
28 | 3a5c16fc | Blue Swirl | #include "sysbus.h" |
29 | 1de7afc9 | Paolo Bonzini | #include "qemu/error-report.h" |
30 | 1de7afc9 | Paolo Bonzini | #include "qemu/config-file.h" |
31 | 3cce6243 | blueswir1 | |
32 | 3cce6243 | blueswir1 | /* debug firmware config */
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33 | 3cce6243 | blueswir1 | //#define DEBUG_FW_CFG
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34 | 3cce6243 | blueswir1 | |
35 | 3cce6243 | blueswir1 | #ifdef DEBUG_FW_CFG
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36 | 001faf32 | Blue Swirl | #define FW_CFG_DPRINTF(fmt, ...) \
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37 | 001faf32 | Blue Swirl | do { printf("FW_CFG: " fmt , ## __VA_ARGS__); } while (0) |
38 | 3cce6243 | blueswir1 | #else
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39 | 001faf32 | Blue Swirl | #define FW_CFG_DPRINTF(fmt, ...)
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40 | 3cce6243 | blueswir1 | #endif
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41 | 3cce6243 | blueswir1 | |
42 | 3cce6243 | blueswir1 | #define FW_CFG_SIZE 2 |
43 | 561e1827 | Avi Kivity | #define FW_CFG_DATA_SIZE 1 |
44 | 3cce6243 | blueswir1 | |
45 | b96ae2da | Blue Swirl | typedef struct FWCfgEntry { |
46 | ff06108b | Juan Quintela | uint32_t len; |
47 | 3cce6243 | blueswir1 | uint8_t *data; |
48 | 3cce6243 | blueswir1 | void *callback_opaque;
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49 | 3cce6243 | blueswir1 | FWCfgCallback callback; |
50 | 3cce6243 | blueswir1 | } FWCfgEntry; |
51 | 3cce6243 | blueswir1 | |
52 | b96ae2da | Blue Swirl | struct FWCfgState {
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53 | 3a5c16fc | Blue Swirl | SysBusDevice busdev; |
54 | 561e1827 | Avi Kivity | MemoryRegion ctl_iomem, data_iomem, comb_iomem; |
55 | 3a5c16fc | Blue Swirl | uint32_t ctl_iobase, data_iobase; |
56 | 3cce6243 | blueswir1 | FWCfgEntry entries[2][FW_CFG_MAX_ENTRY];
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57 | abe147e0 | Gerd Hoffmann | FWCfgFiles *files; |
58 | 3cce6243 | blueswir1 | uint16_t cur_entry; |
59 | ff06108b | Juan Quintela | uint32_t cur_offset; |
60 | 962630f2 | Gleb Natapov | Notifier machine_ready; |
61 | c2b5bda4 | Gerd Hoffmann | }; |
62 | 3cce6243 | blueswir1 | |
63 | 3d3b8303 | wayne | #define JPG_FILE 0 |
64 | 3d3b8303 | wayne | #define BMP_FILE 1 |
65 | 3d3b8303 | wayne | |
66 | 9477c87e | Pavel Borzenkov | static char *read_splashfile(char *filename, int *file_sizep, int *file_typep) |
67 | 3d3b8303 | wayne | { |
68 | 9477c87e | Pavel Borzenkov | GError *err = NULL;
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69 | 9477c87e | Pavel Borzenkov | gboolean res; |
70 | 9477c87e | Pavel Borzenkov | gchar *content; |
71 | 3d3b8303 | wayne | int file_type = -1; |
72 | 9477c87e | Pavel Borzenkov | unsigned int filehead = 0; |
73 | 3d3b8303 | wayne | int bmp_bpp;
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74 | 3d3b8303 | wayne | |
75 | 9477c87e | Pavel Borzenkov | res = g_file_get_contents(filename, &content, (gsize *)file_sizep, &err); |
76 | 9477c87e | Pavel Borzenkov | if (res == FALSE) {
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77 | 9477c87e | Pavel Borzenkov | error_report("failed to read splash file '%s'", filename);
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78 | 9477c87e | Pavel Borzenkov | g_error_free(err); |
79 | 9477c87e | Pavel Borzenkov | return NULL; |
80 | 3d3b8303 | wayne | } |
81 | 9477c87e | Pavel Borzenkov | |
82 | 3d3b8303 | wayne | /* check file size */
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83 | 9477c87e | Pavel Borzenkov | if (*file_sizep < 30) { |
84 | 9477c87e | Pavel Borzenkov | goto error;
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85 | 3d3b8303 | wayne | } |
86 | 9477c87e | Pavel Borzenkov | |
87 | 3d3b8303 | wayne | /* check magic ID */
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88 | 9477c87e | Pavel Borzenkov | filehead = ((content[0] & 0xff) + (content[1] << 8)) & 0xffff; |
89 | 9477c87e | Pavel Borzenkov | if (filehead == 0xd8ff) { |
90 | 3d3b8303 | wayne | file_type = JPG_FILE; |
91 | 9477c87e | Pavel Borzenkov | } else if (filehead == 0x4d42) { |
92 | 9477c87e | Pavel Borzenkov | file_type = BMP_FILE; |
93 | 3d3b8303 | wayne | } else {
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94 | 9477c87e | Pavel Borzenkov | goto error;
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95 | 3d3b8303 | wayne | } |
96 | 9477c87e | Pavel Borzenkov | |
97 | 3d3b8303 | wayne | /* check BMP bpp */
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98 | 3d3b8303 | wayne | if (file_type == BMP_FILE) {
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99 | 9477c87e | Pavel Borzenkov | bmp_bpp = (content[28] + (content[29] << 8)) & 0xffff; |
100 | 3d3b8303 | wayne | if (bmp_bpp != 24) { |
101 | 9477c87e | Pavel Borzenkov | goto error;
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102 | 3d3b8303 | wayne | } |
103 | 3d3b8303 | wayne | } |
104 | 9477c87e | Pavel Borzenkov | |
105 | 3d3b8303 | wayne | /* return values */
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106 | 3d3b8303 | wayne | *file_typep = file_type; |
107 | 9477c87e | Pavel Borzenkov | |
108 | 9477c87e | Pavel Borzenkov | return content;
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109 | 9477c87e | Pavel Borzenkov | |
110 | 9477c87e | Pavel Borzenkov | error:
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111 | 9477c87e | Pavel Borzenkov | error_report("splash file '%s' format not recognized; must be JPEG "
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112 | 9477c87e | Pavel Borzenkov | "or 24 bit BMP", filename);
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113 | 9477c87e | Pavel Borzenkov | g_free(content); |
114 | 9477c87e | Pavel Borzenkov | return NULL; |
115 | 3d3b8303 | wayne | } |
116 | 3d3b8303 | wayne | |
117 | 3d3b8303 | wayne | static void fw_cfg_bootsplash(FWCfgState *s) |
118 | 3d3b8303 | wayne | { |
119 | 3d3b8303 | wayne | int boot_splash_time = -1; |
120 | 3d3b8303 | wayne | const char *boot_splash_filename = NULL; |
121 | 3d3b8303 | wayne | char *p;
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122 | 9477c87e | Pavel Borzenkov | char *filename, *file_data;
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123 | 3d3b8303 | wayne | int file_size;
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124 | 3d3b8303 | wayne | int file_type = -1; |
125 | 3d3b8303 | wayne | const char *temp; |
126 | 3d3b8303 | wayne | |
127 | 3d3b8303 | wayne | /* get user configuration */
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128 | 3d3b8303 | wayne | QemuOptsList *plist = qemu_find_opts("boot-opts");
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129 | 3d3b8303 | wayne | QemuOpts *opts = QTAILQ_FIRST(&plist->head); |
130 | 3d3b8303 | wayne | if (opts != NULL) { |
131 | 3d3b8303 | wayne | temp = qemu_opt_get(opts, "splash");
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132 | 3d3b8303 | wayne | if (temp != NULL) { |
133 | 3d3b8303 | wayne | boot_splash_filename = temp; |
134 | 3d3b8303 | wayne | } |
135 | 3d3b8303 | wayne | temp = qemu_opt_get(opts, "splash-time");
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136 | 3d3b8303 | wayne | if (temp != NULL) { |
137 | 3d3b8303 | wayne | p = (char *)temp;
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138 | 3d3b8303 | wayne | boot_splash_time = strtol(p, (char **)&p, 10); |
139 | 3d3b8303 | wayne | } |
140 | 3d3b8303 | wayne | } |
141 | 3d3b8303 | wayne | |
142 | 3d3b8303 | wayne | /* insert splash time if user configurated */
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143 | 3d3b8303 | wayne | if (boot_splash_time >= 0) { |
144 | 3d3b8303 | wayne | /* validate the input */
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145 | 3d3b8303 | wayne | if (boot_splash_time > 0xffff) { |
146 | 3d3b8303 | wayne | error_report("splash time is big than 65535, force it to 65535.");
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147 | 3d3b8303 | wayne | boot_splash_time = 0xffff;
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148 | 3d3b8303 | wayne | } |
149 | 3d3b8303 | wayne | /* use little endian format */
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150 | 3d3b8303 | wayne | qemu_extra_params_fw[0] = (uint8_t)(boot_splash_time & 0xff); |
151 | 3d3b8303 | wayne | qemu_extra_params_fw[1] = (uint8_t)((boot_splash_time >> 8) & 0xff); |
152 | 3d3b8303 | wayne | fw_cfg_add_file(s, "etc/boot-menu-wait", qemu_extra_params_fw, 2); |
153 | 3d3b8303 | wayne | } |
154 | 3d3b8303 | wayne | |
155 | 3d3b8303 | wayne | /* insert splash file if user configurated */
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156 | 3d3b8303 | wayne | if (boot_splash_filename != NULL) { |
157 | 3d3b8303 | wayne | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, boot_splash_filename); |
158 | 3d3b8303 | wayne | if (filename == NULL) { |
159 | 3d3b8303 | wayne | error_report("failed to find file '%s'.", boot_splash_filename);
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160 | 3d3b8303 | wayne | return;
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161 | 3d3b8303 | wayne | } |
162 | 9477c87e | Pavel Borzenkov | |
163 | 9477c87e | Pavel Borzenkov | /* loading file data */
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164 | 9477c87e | Pavel Borzenkov | file_data = read_splashfile(filename, &file_size, &file_type); |
165 | 9477c87e | Pavel Borzenkov | if (file_data == NULL) { |
166 | 7267c094 | Anthony Liguori | g_free(filename); |
167 | 3d3b8303 | wayne | return;
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168 | 3d3b8303 | wayne | } |
169 | 3d3b8303 | wayne | if (boot_splash_filedata != NULL) { |
170 | 7267c094 | Anthony Liguori | g_free(boot_splash_filedata); |
171 | 3d3b8303 | wayne | } |
172 | 9477c87e | Pavel Borzenkov | boot_splash_filedata = (uint8_t *)file_data; |
173 | 3d3b8303 | wayne | boot_splash_filedata_size = file_size; |
174 | 9477c87e | Pavel Borzenkov | |
175 | 3d3b8303 | wayne | /* insert data */
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176 | 3d3b8303 | wayne | if (file_type == JPG_FILE) {
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177 | 3d3b8303 | wayne | fw_cfg_add_file(s, "bootsplash.jpg",
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178 | 3d3b8303 | wayne | boot_splash_filedata, boot_splash_filedata_size); |
179 | 3d3b8303 | wayne | } else {
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180 | 3d3b8303 | wayne | fw_cfg_add_file(s, "bootsplash.bmp",
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181 | 3d3b8303 | wayne | boot_splash_filedata, boot_splash_filedata_size); |
182 | 3d3b8303 | wayne | } |
183 | 7267c094 | Anthony Liguori | g_free(filename); |
184 | 3d3b8303 | wayne | } |
185 | 3d3b8303 | wayne | } |
186 | 3d3b8303 | wayne | |
187 | ac05f349 | Amos Kong | static void fw_cfg_reboot(FWCfgState *s) |
188 | ac05f349 | Amos Kong | { |
189 | ac05f349 | Amos Kong | int reboot_timeout = -1; |
190 | ac05f349 | Amos Kong | char *p;
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191 | ac05f349 | Amos Kong | const char *temp; |
192 | ac05f349 | Amos Kong | |
193 | ac05f349 | Amos Kong | /* get user configuration */
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194 | ac05f349 | Amos Kong | QemuOptsList *plist = qemu_find_opts("boot-opts");
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195 | ac05f349 | Amos Kong | QemuOpts *opts = QTAILQ_FIRST(&plist->head); |
196 | ac05f349 | Amos Kong | if (opts != NULL) { |
197 | ac05f349 | Amos Kong | temp = qemu_opt_get(opts, "reboot-timeout");
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198 | ac05f349 | Amos Kong | if (temp != NULL) { |
199 | ac05f349 | Amos Kong | p = (char *)temp;
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200 | ac05f349 | Amos Kong | reboot_timeout = strtol(p, (char **)&p, 10); |
201 | ac05f349 | Amos Kong | } |
202 | ac05f349 | Amos Kong | } |
203 | ac05f349 | Amos Kong | /* validate the input */
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204 | ac05f349 | Amos Kong | if (reboot_timeout > 0xffff) { |
205 | ac05f349 | Amos Kong | error_report("reboot timeout is larger than 65535, force it to 65535.");
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206 | ac05f349 | Amos Kong | reboot_timeout = 0xffff;
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207 | ac05f349 | Amos Kong | } |
208 | ac05f349 | Amos Kong | fw_cfg_add_file(s, "etc/boot-fail-wait", g_memdup(&reboot_timeout, 4), 4); |
209 | ac05f349 | Amos Kong | } |
210 | ac05f349 | Amos Kong | |
211 | 3cce6243 | blueswir1 | static void fw_cfg_write(FWCfgState *s, uint8_t value) |
212 | 3cce6243 | blueswir1 | { |
213 | 3cce6243 | blueswir1 | int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
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214 | 3cce6243 | blueswir1 | FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK]; |
215 | 3cce6243 | blueswir1 | |
216 | 3cce6243 | blueswir1 | FW_CFG_DPRINTF("write %d\n", value);
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217 | 3cce6243 | blueswir1 | |
218 | 962d4b28 | Blue Swirl | if (s->cur_entry & FW_CFG_WRITE_CHANNEL && e->callback &&
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219 | 962d4b28 | Blue Swirl | s->cur_offset < e->len) { |
220 | 3cce6243 | blueswir1 | e->data[s->cur_offset++] = value; |
221 | 3cce6243 | blueswir1 | if (s->cur_offset == e->len) {
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222 | 3cce6243 | blueswir1 | e->callback(e->callback_opaque, e->data); |
223 | 3cce6243 | blueswir1 | s->cur_offset = 0;
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224 | 3cce6243 | blueswir1 | } |
225 | 3cce6243 | blueswir1 | } |
226 | 3cce6243 | blueswir1 | } |
227 | 3cce6243 | blueswir1 | |
228 | 3cce6243 | blueswir1 | static int fw_cfg_select(FWCfgState *s, uint16_t key) |
229 | 3cce6243 | blueswir1 | { |
230 | 3cce6243 | blueswir1 | int ret;
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231 | 3cce6243 | blueswir1 | |
232 | 3cce6243 | blueswir1 | s->cur_offset = 0;
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233 | 3cce6243 | blueswir1 | if ((key & FW_CFG_ENTRY_MASK) >= FW_CFG_MAX_ENTRY) {
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234 | 3cce6243 | blueswir1 | s->cur_entry = FW_CFG_INVALID; |
235 | 3cce6243 | blueswir1 | ret = 0;
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236 | 3cce6243 | blueswir1 | } else {
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237 | 3cce6243 | blueswir1 | s->cur_entry = key; |
238 | 3cce6243 | blueswir1 | ret = 1;
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239 | 3cce6243 | blueswir1 | } |
240 | 3cce6243 | blueswir1 | |
241 | 3cce6243 | blueswir1 | FW_CFG_DPRINTF("select key %d (%sfound)\n", key, ret ? "" : "not "); |
242 | 3cce6243 | blueswir1 | |
243 | 3cce6243 | blueswir1 | return ret;
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244 | 3cce6243 | blueswir1 | } |
245 | 3cce6243 | blueswir1 | |
246 | 3cce6243 | blueswir1 | static uint8_t fw_cfg_read(FWCfgState *s)
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247 | 3cce6243 | blueswir1 | { |
248 | 3cce6243 | blueswir1 | int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
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249 | 3cce6243 | blueswir1 | FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK]; |
250 | 3cce6243 | blueswir1 | uint8_t ret; |
251 | 3cce6243 | blueswir1 | |
252 | 3cce6243 | blueswir1 | if (s->cur_entry == FW_CFG_INVALID || !e->data || s->cur_offset >= e->len)
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253 | 3cce6243 | blueswir1 | ret = 0;
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254 | 3cce6243 | blueswir1 | else
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255 | 3cce6243 | blueswir1 | ret = e->data[s->cur_offset++]; |
256 | 3cce6243 | blueswir1 | |
257 | 3cce6243 | blueswir1 | FW_CFG_DPRINTF("read %d\n", ret);
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258 | 3cce6243 | blueswir1 | |
259 | 3cce6243 | blueswir1 | return ret;
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260 | 3cce6243 | blueswir1 | } |
261 | 3cce6243 | blueswir1 | |
262 | a8170e5e | Avi Kivity | static uint64_t fw_cfg_data_mem_read(void *opaque, hwaddr addr, |
263 | 561e1827 | Avi Kivity | unsigned size)
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264 | 3cce6243 | blueswir1 | { |
265 | 3cce6243 | blueswir1 | return fw_cfg_read(opaque);
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266 | 3cce6243 | blueswir1 | } |
267 | 3cce6243 | blueswir1 | |
268 | a8170e5e | Avi Kivity | static void fw_cfg_data_mem_write(void *opaque, hwaddr addr, |
269 | 561e1827 | Avi Kivity | uint64_t value, unsigned size)
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270 | 3cce6243 | blueswir1 | { |
271 | 7442511c | blueswir1 | fw_cfg_write(opaque, (uint8_t)value); |
272 | 3cce6243 | blueswir1 | } |
273 | 3cce6243 | blueswir1 | |
274 | a8170e5e | Avi Kivity | static void fw_cfg_ctl_mem_write(void *opaque, hwaddr addr, |
275 | 561e1827 | Avi Kivity | uint64_t value, unsigned size)
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276 | 3cce6243 | blueswir1 | { |
277 | 3cce6243 | blueswir1 | fw_cfg_select(opaque, (uint16_t)value); |
278 | 3cce6243 | blueswir1 | } |
279 | 3cce6243 | blueswir1 | |
280 | a8170e5e | Avi Kivity | static bool fw_cfg_ctl_mem_valid(void *opaque, hwaddr addr, |
281 | 561e1827 | Avi Kivity | unsigned size, bool is_write) |
282 | 3cce6243 | blueswir1 | { |
283 | 561e1827 | Avi Kivity | return is_write && size == 2; |
284 | 3cce6243 | blueswir1 | } |
285 | 3cce6243 | blueswir1 | |
286 | a8170e5e | Avi Kivity | static uint64_t fw_cfg_comb_read(void *opaque, hwaddr addr, |
287 | 561e1827 | Avi Kivity | unsigned size)
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288 | 3cce6243 | blueswir1 | { |
289 | 561e1827 | Avi Kivity | return fw_cfg_read(opaque);
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290 | 3cce6243 | blueswir1 | } |
291 | 3cce6243 | blueswir1 | |
292 | a8170e5e | Avi Kivity | static void fw_cfg_comb_write(void *opaque, hwaddr addr, |
293 | 561e1827 | Avi Kivity | uint64_t value, unsigned size)
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294 | 3cce6243 | blueswir1 | { |
295 | 561e1827 | Avi Kivity | switch (size) {
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296 | 561e1827 | Avi Kivity | case 1: |
297 | 561e1827 | Avi Kivity | fw_cfg_write(opaque, (uint8_t)value); |
298 | 561e1827 | Avi Kivity | break;
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299 | 561e1827 | Avi Kivity | case 2: |
300 | 561e1827 | Avi Kivity | fw_cfg_select(opaque, (uint16_t)value); |
301 | 561e1827 | Avi Kivity | break;
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302 | 561e1827 | Avi Kivity | } |
303 | 3cce6243 | blueswir1 | } |
304 | 3cce6243 | blueswir1 | |
305 | a8170e5e | Avi Kivity | static bool fw_cfg_comb_valid(void *opaque, hwaddr addr, |
306 | 561e1827 | Avi Kivity | unsigned size, bool is_write) |
307 | 561e1827 | Avi Kivity | { |
308 | 561e1827 | Avi Kivity | return (size == 1) || (is_write && size == 2); |
309 | 561e1827 | Avi Kivity | } |
310 | 3cce6243 | blueswir1 | |
311 | 561e1827 | Avi Kivity | static const MemoryRegionOps fw_cfg_ctl_mem_ops = { |
312 | 561e1827 | Avi Kivity | .write = fw_cfg_ctl_mem_write, |
313 | 561e1827 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
314 | 561e1827 | Avi Kivity | .valid.accepts = fw_cfg_ctl_mem_valid, |
315 | 3cce6243 | blueswir1 | }; |
316 | 3cce6243 | blueswir1 | |
317 | 561e1827 | Avi Kivity | static const MemoryRegionOps fw_cfg_data_mem_ops = { |
318 | 561e1827 | Avi Kivity | .read = fw_cfg_data_mem_read, |
319 | 561e1827 | Avi Kivity | .write = fw_cfg_data_mem_write, |
320 | 561e1827 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
321 | 561e1827 | Avi Kivity | .valid = { |
322 | 561e1827 | Avi Kivity | .min_access_size = 1,
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323 | 561e1827 | Avi Kivity | .max_access_size = 1,
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324 | 561e1827 | Avi Kivity | }, |
325 | 3cce6243 | blueswir1 | }; |
326 | 3cce6243 | blueswir1 | |
327 | 561e1827 | Avi Kivity | static const MemoryRegionOps fw_cfg_comb_mem_ops = { |
328 | 561e1827 | Avi Kivity | .read = fw_cfg_comb_read, |
329 | 561e1827 | Avi Kivity | .write = fw_cfg_comb_write, |
330 | 561e1827 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
331 | 561e1827 | Avi Kivity | .valid.accepts = fw_cfg_comb_valid, |
332 | 3cce6243 | blueswir1 | }; |
333 | 3cce6243 | blueswir1 | |
334 | 3a5c16fc | Blue Swirl | static void fw_cfg_reset(DeviceState *d) |
335 | 3cce6243 | blueswir1 | { |
336 | 3a5c16fc | Blue Swirl | FWCfgState *s = DO_UPCAST(FWCfgState, busdev.qdev, d); |
337 | 3cce6243 | blueswir1 | |
338 | 3cce6243 | blueswir1 | fw_cfg_select(s, 0);
|
339 | 3cce6243 | blueswir1 | } |
340 | 3cce6243 | blueswir1 | |
341 | ff06108b | Juan Quintela | /* Save restore 32 bit int as uint16_t
|
342 | ff06108b | Juan Quintela | This is a Big hack, but it is how the old state did it.
|
343 | ff06108b | Juan Quintela | Or we broke compatibility in the state, or we can't use struct tm
|
344 | ff06108b | Juan Quintela | */
|
345 | ff06108b | Juan Quintela | |
346 | ff06108b | Juan Quintela | static int get_uint32_as_uint16(QEMUFile *f, void *pv, size_t size) |
347 | ff06108b | Juan Quintela | { |
348 | ff06108b | Juan Quintela | uint32_t *v = pv; |
349 | ff06108b | Juan Quintela | *v = qemu_get_be16(f); |
350 | ff06108b | Juan Quintela | return 0; |
351 | ff06108b | Juan Quintela | } |
352 | ff06108b | Juan Quintela | |
353 | ff06108b | Juan Quintela | static void put_unused(QEMUFile *f, void *pv, size_t size) |
354 | ff06108b | Juan Quintela | { |
355 | 66c80e75 | Vagrant Cascadian | fprintf(stderr, "uint32_as_uint16 is only used for backward compatibility.\n");
|
356 | ff06108b | Juan Quintela | fprintf(stderr, "This functions shouldn't be called.\n");
|
357 | ff06108b | Juan Quintela | } |
358 | ff06108b | Juan Quintela | |
359 | d05ac8fa | Blue Swirl | static const VMStateInfo vmstate_hack_uint32_as_uint16 = { |
360 | ff06108b | Juan Quintela | .name = "int32_as_uint16",
|
361 | ff06108b | Juan Quintela | .get = get_uint32_as_uint16, |
362 | ff06108b | Juan Quintela | .put = put_unused, |
363 | ff06108b | Juan Quintela | }; |
364 | ff06108b | Juan Quintela | |
365 | ff06108b | Juan Quintela | #define VMSTATE_UINT16_HACK(_f, _s, _t) \
|
366 | ff06108b | Juan Quintela | VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint32_as_uint16, uint32_t)
|
367 | ff06108b | Juan Quintela | |
368 | ff06108b | Juan Quintela | |
369 | ff06108b | Juan Quintela | static bool is_version_1(void *opaque, int version_id) |
370 | ff06108b | Juan Quintela | { |
371 | ff06108b | Juan Quintela | return version_id == 1; |
372 | ff06108b | Juan Quintela | } |
373 | ff06108b | Juan Quintela | |
374 | 7d2edd40 | Juan Quintela | static const VMStateDescription vmstate_fw_cfg = { |
375 | 7d2edd40 | Juan Quintela | .name = "fw_cfg",
|
376 | ff06108b | Juan Quintela | .version_id = 2,
|
377 | 7d2edd40 | Juan Quintela | .minimum_version_id = 1,
|
378 | 7d2edd40 | Juan Quintela | .minimum_version_id_old = 1,
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379 | 7d2edd40 | Juan Quintela | .fields = (VMStateField []) { |
380 | 7d2edd40 | Juan Quintela | VMSTATE_UINT16(cur_entry, FWCfgState), |
381 | ff06108b | Juan Quintela | VMSTATE_UINT16_HACK(cur_offset, FWCfgState, is_version_1), |
382 | ff06108b | Juan Quintela | VMSTATE_UINT32_V(cur_offset, FWCfgState, 2),
|
383 | 7d2edd40 | Juan Quintela | VMSTATE_END_OF_LIST() |
384 | 7d2edd40 | Juan Quintela | } |
385 | 7d2edd40 | Juan Quintela | }; |
386 | 3cce6243 | blueswir1 | |
387 | c2b5bda4 | Gerd Hoffmann | int fw_cfg_add_bytes(FWCfgState *s, uint16_t key, uint8_t *data, uint32_t len)
|
388 | 3cce6243 | blueswir1 | { |
389 | 3cce6243 | blueswir1 | int arch = !!(key & FW_CFG_ARCH_LOCAL);
|
390 | 3cce6243 | blueswir1 | |
391 | 3cce6243 | blueswir1 | key &= FW_CFG_ENTRY_MASK; |
392 | 3cce6243 | blueswir1 | |
393 | 3cce6243 | blueswir1 | if (key >= FW_CFG_MAX_ENTRY)
|
394 | 3cce6243 | blueswir1 | return 0; |
395 | 3cce6243 | blueswir1 | |
396 | 3cce6243 | blueswir1 | s->entries[arch][key].data = data; |
397 | 3cce6243 | blueswir1 | s->entries[arch][key].len = len; |
398 | 3cce6243 | blueswir1 | |
399 | 3cce6243 | blueswir1 | return 1; |
400 | 3cce6243 | blueswir1 | } |
401 | 3cce6243 | blueswir1 | |
402 | c2b5bda4 | Gerd Hoffmann | int fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value)
|
403 | 3cce6243 | blueswir1 | { |
404 | 3cce6243 | blueswir1 | uint16_t *copy; |
405 | 3cce6243 | blueswir1 | |
406 | 7267c094 | Anthony Liguori | copy = g_malloc(sizeof(value));
|
407 | 3cce6243 | blueswir1 | *copy = cpu_to_le16(value); |
408 | c2b5bda4 | Gerd Hoffmann | return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value)); |
409 | 3cce6243 | blueswir1 | } |
410 | 3cce6243 | blueswir1 | |
411 | c2b5bda4 | Gerd Hoffmann | int fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value)
|
412 | 3cce6243 | blueswir1 | { |
413 | 3cce6243 | blueswir1 | uint32_t *copy; |
414 | 3cce6243 | blueswir1 | |
415 | 7267c094 | Anthony Liguori | copy = g_malloc(sizeof(value));
|
416 | 3cce6243 | blueswir1 | *copy = cpu_to_le32(value); |
417 | c2b5bda4 | Gerd Hoffmann | return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value)); |
418 | 3cce6243 | blueswir1 | } |
419 | 3cce6243 | blueswir1 | |
420 | c2b5bda4 | Gerd Hoffmann | int fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value)
|
421 | 3cce6243 | blueswir1 | { |
422 | 3cce6243 | blueswir1 | uint64_t *copy; |
423 | 3cce6243 | blueswir1 | |
424 | 7267c094 | Anthony Liguori | copy = g_malloc(sizeof(value));
|
425 | 3cce6243 | blueswir1 | *copy = cpu_to_le64(value); |
426 | c2b5bda4 | Gerd Hoffmann | return fw_cfg_add_bytes(s, key, (uint8_t *)copy, sizeof(value)); |
427 | 3cce6243 | blueswir1 | } |
428 | 3cce6243 | blueswir1 | |
429 | c2b5bda4 | Gerd Hoffmann | int fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
|
430 | 3cce6243 | blueswir1 | void *callback_opaque, uint8_t *data, size_t len)
|
431 | 3cce6243 | blueswir1 | { |
432 | 3cce6243 | blueswir1 | int arch = !!(key & FW_CFG_ARCH_LOCAL);
|
433 | 3cce6243 | blueswir1 | |
434 | 85df0de4 | blueswir1 | if (!(key & FW_CFG_WRITE_CHANNEL))
|
435 | 85df0de4 | blueswir1 | return 0; |
436 | 85df0de4 | blueswir1 | |
437 | 3cce6243 | blueswir1 | key &= FW_CFG_ENTRY_MASK; |
438 | 3cce6243 | blueswir1 | |
439 | 85df0de4 | blueswir1 | if (key >= FW_CFG_MAX_ENTRY || len > 65535) |
440 | 3cce6243 | blueswir1 | return 0; |
441 | 3cce6243 | blueswir1 | |
442 | 3cce6243 | blueswir1 | s->entries[arch][key].data = data; |
443 | 3cce6243 | blueswir1 | s->entries[arch][key].len = len; |
444 | 3cce6243 | blueswir1 | s->entries[arch][key].callback_opaque = callback_opaque; |
445 | 3cce6243 | blueswir1 | s->entries[arch][key].callback = callback; |
446 | 3cce6243 | blueswir1 | |
447 | 3cce6243 | blueswir1 | return 1; |
448 | 3cce6243 | blueswir1 | } |
449 | 3cce6243 | blueswir1 | |
450 | de1f34cb | Gleb Natapov | int fw_cfg_add_file(FWCfgState *s, const char *filename, uint8_t *data, |
451 | de1f34cb | Gleb Natapov | uint32_t len) |
452 | abe147e0 | Gerd Hoffmann | { |
453 | de9352bc | Gerd Hoffmann | int i, index;
|
454 | abe147e0 | Gerd Hoffmann | |
455 | abe147e0 | Gerd Hoffmann | if (!s->files) {
|
456 | abe147e0 | Gerd Hoffmann | int dsize = sizeof(uint32_t) + sizeof(FWCfgFile) * FW_CFG_FILE_SLOTS; |
457 | 7267c094 | Anthony Liguori | s->files = g_malloc0(dsize); |
458 | abe147e0 | Gerd Hoffmann | fw_cfg_add_bytes(s, FW_CFG_FILE_DIR, (uint8_t*)s->files, dsize); |
459 | abe147e0 | Gerd Hoffmann | } |
460 | abe147e0 | Gerd Hoffmann | |
461 | abe147e0 | Gerd Hoffmann | index = be32_to_cpu(s->files->count); |
462 | abe147e0 | Gerd Hoffmann | if (index == FW_CFG_FILE_SLOTS) {
|
463 | abe147e0 | Gerd Hoffmann | fprintf(stderr, "fw_cfg: out of file slots\n");
|
464 | abe147e0 | Gerd Hoffmann | return 0; |
465 | abe147e0 | Gerd Hoffmann | } |
466 | abe147e0 | Gerd Hoffmann | |
467 | abe147e0 | Gerd Hoffmann | fw_cfg_add_bytes(s, FW_CFG_FILE_FIRST + index, data, len); |
468 | abe147e0 | Gerd Hoffmann | |
469 | de1f34cb | Gleb Natapov | pstrcpy(s->files->f[index].name, sizeof(s->files->f[index].name),
|
470 | de1f34cb | Gleb Natapov | filename); |
471 | de9352bc | Gerd Hoffmann | for (i = 0; i < index; i++) { |
472 | de9352bc | Gerd Hoffmann | if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) { |
473 | de9352bc | Gerd Hoffmann | FW_CFG_DPRINTF("%s: skip duplicate: %s\n", __FUNCTION__,
|
474 | de9352bc | Gerd Hoffmann | s->files->f[index].name); |
475 | de9352bc | Gerd Hoffmann | return 1; |
476 | de9352bc | Gerd Hoffmann | } |
477 | abe147e0 | Gerd Hoffmann | } |
478 | de9352bc | Gerd Hoffmann | |
479 | abe147e0 | Gerd Hoffmann | s->files->f[index].size = cpu_to_be32(len); |
480 | abe147e0 | Gerd Hoffmann | s->files->f[index].select = cpu_to_be16(FW_CFG_FILE_FIRST + index); |
481 | abe147e0 | Gerd Hoffmann | FW_CFG_DPRINTF("%s: #%d: %s (%d bytes)\n", __FUNCTION__,
|
482 | abe147e0 | Gerd Hoffmann | index, s->files->f[index].name, len); |
483 | abe147e0 | Gerd Hoffmann | |
484 | abe147e0 | Gerd Hoffmann | s->files->count = cpu_to_be32(index+1);
|
485 | abe147e0 | Gerd Hoffmann | return 1; |
486 | abe147e0 | Gerd Hoffmann | } |
487 | abe147e0 | Gerd Hoffmann | |
488 | 9e8dd451 | Jan Kiszka | static void fw_cfg_machine_ready(struct Notifier *n, void *data) |
489 | 962630f2 | Gleb Natapov | { |
490 | 962630f2 | Gleb Natapov | uint32_t len; |
491 | 962630f2 | Gleb Natapov | FWCfgState *s = container_of(n, FWCfgState, machine_ready); |
492 | 962630f2 | Gleb Natapov | char *bootindex = get_boot_devices_list(&len);
|
493 | 962630f2 | Gleb Natapov | |
494 | 962630f2 | Gleb Natapov | fw_cfg_add_file(s, "bootorder", (uint8_t*)bootindex, len);
|
495 | 962630f2 | Gleb Natapov | } |
496 | 962630f2 | Gleb Natapov | |
497 | c2b5bda4 | Gerd Hoffmann | FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port, |
498 | a8170e5e | Avi Kivity | hwaddr ctl_addr, hwaddr data_addr) |
499 | 3cce6243 | blueswir1 | { |
500 | 3a5c16fc | Blue Swirl | DeviceState *dev; |
501 | 3a5c16fc | Blue Swirl | SysBusDevice *d; |
502 | 3cce6243 | blueswir1 | FWCfgState *s; |
503 | 3cce6243 | blueswir1 | |
504 | 3a5c16fc | Blue Swirl | dev = qdev_create(NULL, "fw_cfg"); |
505 | 3a5c16fc | Blue Swirl | qdev_prop_set_uint32(dev, "ctl_iobase", ctl_port);
|
506 | 3a5c16fc | Blue Swirl | qdev_prop_set_uint32(dev, "data_iobase", data_port);
|
507 | 3a5c16fc | Blue Swirl | qdev_init_nofail(dev); |
508 | 3a5c16fc | Blue Swirl | d = sysbus_from_qdev(dev); |
509 | 3a5c16fc | Blue Swirl | |
510 | 3a5c16fc | Blue Swirl | s = DO_UPCAST(FWCfgState, busdev.qdev, dev); |
511 | 3cce6243 | blueswir1 | |
512 | 3cce6243 | blueswir1 | if (ctl_addr) {
|
513 | 3a5c16fc | Blue Swirl | sysbus_mmio_map(d, 0, ctl_addr);
|
514 | 3cce6243 | blueswir1 | } |
515 | 3cce6243 | blueswir1 | if (data_addr) {
|
516 | 3a5c16fc | Blue Swirl | sysbus_mmio_map(d, 1, data_addr);
|
517 | 3cce6243 | blueswir1 | } |
518 | 3cce6243 | blueswir1 | fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (uint8_t *)"QEMU", 4); |
519 | 084a197a | blueswir1 | fw_cfg_add_bytes(s, FW_CFG_UUID, qemu_uuid, 16);
|
520 | 993fbfdb | Anthony Liguori | fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)(display_type == DT_NOGRAPHIC)); |
521 | 905fdcb5 | blueswir1 | fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); |
522 | 6be68d7e | Jes Sorensen | fw_cfg_add_i16(s, FW_CFG_MAX_CPUS, (uint16_t)max_cpus); |
523 | 95387491 | Jan Kiszka | fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu); |
524 | 3d3b8303 | wayne | fw_cfg_bootsplash(s); |
525 | ac05f349 | Amos Kong | fw_cfg_reboot(s); |
526 | 962630f2 | Gleb Natapov | |
527 | 962630f2 | Gleb Natapov | s->machine_ready.notify = fw_cfg_machine_ready; |
528 | 962630f2 | Gleb Natapov | qemu_add_machine_init_done_notifier(&s->machine_ready); |
529 | 962630f2 | Gleb Natapov | |
530 | 3cce6243 | blueswir1 | return s;
|
531 | 3cce6243 | blueswir1 | } |
532 | 3a5c16fc | Blue Swirl | |
533 | 3a5c16fc | Blue Swirl | static int fw_cfg_init1(SysBusDevice *dev) |
534 | 3a5c16fc | Blue Swirl | { |
535 | 3a5c16fc | Blue Swirl | FWCfgState *s = FROM_SYSBUS(FWCfgState, dev); |
536 | 3a5c16fc | Blue Swirl | |
537 | 561e1827 | Avi Kivity | memory_region_init_io(&s->ctl_iomem, &fw_cfg_ctl_mem_ops, s, |
538 | 561e1827 | Avi Kivity | "fwcfg.ctl", FW_CFG_SIZE);
|
539 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->ctl_iomem); |
540 | 561e1827 | Avi Kivity | memory_region_init_io(&s->data_iomem, &fw_cfg_data_mem_ops, s, |
541 | 561e1827 | Avi Kivity | "fwcfg.data", FW_CFG_DATA_SIZE);
|
542 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->data_iomem); |
543 | 561e1827 | Avi Kivity | /* In case ctl and data overlap: */
|
544 | 561e1827 | Avi Kivity | memory_region_init_io(&s->comb_iomem, &fw_cfg_comb_mem_ops, s, |
545 | 561e1827 | Avi Kivity | "fwcfg", FW_CFG_SIZE);
|
546 | 561e1827 | Avi Kivity | |
547 | 561e1827 | Avi Kivity | if (s->ctl_iobase + 1 == s->data_iobase) { |
548 | 561e1827 | Avi Kivity | sysbus_add_io(dev, s->ctl_iobase, &s->comb_iomem); |
549 | 561e1827 | Avi Kivity | } else {
|
550 | 561e1827 | Avi Kivity | if (s->ctl_iobase) {
|
551 | 561e1827 | Avi Kivity | sysbus_add_io(dev, s->ctl_iobase, &s->ctl_iomem); |
552 | 561e1827 | Avi Kivity | } |
553 | 561e1827 | Avi Kivity | if (s->data_iobase) {
|
554 | 561e1827 | Avi Kivity | sysbus_add_io(dev, s->data_iobase, &s->data_iomem); |
555 | 561e1827 | Avi Kivity | } |
556 | 3a5c16fc | Blue Swirl | } |
557 | 3a5c16fc | Blue Swirl | return 0; |
558 | 3a5c16fc | Blue Swirl | } |
559 | 3a5c16fc | Blue Swirl | |
560 | 999e12bb | Anthony Liguori | static Property fw_cfg_properties[] = {
|
561 | 999e12bb | Anthony Liguori | DEFINE_PROP_HEX32("ctl_iobase", FWCfgState, ctl_iobase, -1), |
562 | 999e12bb | Anthony Liguori | DEFINE_PROP_HEX32("data_iobase", FWCfgState, data_iobase, -1), |
563 | 999e12bb | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
564 | 999e12bb | Anthony Liguori | }; |
565 | 999e12bb | Anthony Liguori | |
566 | 999e12bb | Anthony Liguori | static void fw_cfg_class_init(ObjectClass *klass, void *data) |
567 | 999e12bb | Anthony Liguori | { |
568 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
569 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
570 | 999e12bb | Anthony Liguori | |
571 | 999e12bb | Anthony Liguori | k->init = fw_cfg_init1; |
572 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
573 | 39bffca2 | Anthony Liguori | dc->reset = fw_cfg_reset; |
574 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_fw_cfg; |
575 | 39bffca2 | Anthony Liguori | dc->props = fw_cfg_properties; |
576 | 999e12bb | Anthony Liguori | } |
577 | 999e12bb | Anthony Liguori | |
578 | 39bffca2 | Anthony Liguori | static TypeInfo fw_cfg_info = {
|
579 | 39bffca2 | Anthony Liguori | .name = "fw_cfg",
|
580 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
581 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(FWCfgState),
|
582 | 39bffca2 | Anthony Liguori | .class_init = fw_cfg_class_init, |
583 | 3a5c16fc | Blue Swirl | }; |
584 | 3a5c16fc | Blue Swirl | |
585 | 83f7d43a | Andreas Färber | static void fw_cfg_register_types(void) |
586 | 3a5c16fc | Blue Swirl | { |
587 | 39bffca2 | Anthony Liguori | type_register_static(&fw_cfg_info); |
588 | 3a5c16fc | Blue Swirl | } |
589 | 3a5c16fc | Blue Swirl | |
590 | 83f7d43a | Andreas Färber | type_init(fw_cfg_register_types) |