root / hw / nvram / fw_cfg.c @ a8aec295
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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 | 83c9f4ca | Paolo Bonzini | #include "hw/hw.h" |
25 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
26 | 0d09e41a | Paolo Bonzini | #include "hw/isa/isa.h" |
27 | 0d09e41a | Paolo Bonzini | #include "hw/nvram/fw_cfg.h" |
28 | 83c9f4ca | Paolo Bonzini | #include "hw/sysbus.h" |
29 | f6e35343 | Markus Armbruster | #include "trace.h" |
30 | 1de7afc9 | Paolo Bonzini | #include "qemu/error-report.h" |
31 | 1de7afc9 | Paolo Bonzini | #include "qemu/config-file.h" |
32 | 3cce6243 | blueswir1 | |
33 | 3cce6243 | blueswir1 | #define FW_CFG_SIZE 2 |
34 | 561e1827 | Avi Kivity | #define FW_CFG_DATA_SIZE 1 |
35 | 600c60b7 | Michael S. Tsirkin | #define TYPE_FW_CFG "fw_cfg" |
36 | 600c60b7 | Michael S. Tsirkin | #define FW_CFG_NAME "fw_cfg" |
37 | 600c60b7 | Michael S. Tsirkin | #define FW_CFG_PATH "/machine/" FW_CFG_NAME |
38 | 3cce6243 | blueswir1 | |
39 | b96ae2da | Blue Swirl | typedef struct FWCfgEntry { |
40 | ff06108b | Juan Quintela | uint32_t len; |
41 | 3cce6243 | blueswir1 | uint8_t *data; |
42 | 3cce6243 | blueswir1 | void *callback_opaque;
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43 | 3cce6243 | blueswir1 | FWCfgCallback callback; |
44 | 3cce6243 | blueswir1 | } FWCfgEntry; |
45 | 3cce6243 | blueswir1 | |
46 | b96ae2da | Blue Swirl | struct FWCfgState {
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47 | 3a5c16fc | Blue Swirl | SysBusDevice busdev; |
48 | 561e1827 | Avi Kivity | MemoryRegion ctl_iomem, data_iomem, comb_iomem; |
49 | 3a5c16fc | Blue Swirl | uint32_t ctl_iobase, data_iobase; |
50 | 3cce6243 | blueswir1 | FWCfgEntry entries[2][FW_CFG_MAX_ENTRY];
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51 | abe147e0 | Gerd Hoffmann | FWCfgFiles *files; |
52 | 3cce6243 | blueswir1 | uint16_t cur_entry; |
53 | ff06108b | Juan Quintela | uint32_t cur_offset; |
54 | 962630f2 | Gleb Natapov | Notifier machine_ready; |
55 | c2b5bda4 | Gerd Hoffmann | }; |
56 | 3cce6243 | blueswir1 | |
57 | 3d3b8303 | wayne | #define JPG_FILE 0 |
58 | 3d3b8303 | wayne | #define BMP_FILE 1 |
59 | 3d3b8303 | wayne | |
60 | 3d1bba20 | Peter Crosthwaite | static char *read_splashfile(char *filename, gsize *file_sizep, |
61 | d09acb9b | Markus Armbruster | int *file_typep)
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62 | 3d3b8303 | wayne | { |
63 | 9477c87e | Pavel Borzenkov | GError *err = NULL;
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64 | 9477c87e | Pavel Borzenkov | gboolean res; |
65 | 9477c87e | Pavel Borzenkov | gchar *content; |
66 | 9f8863eb | Markus Armbruster | int file_type;
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67 | 9f8863eb | Markus Armbruster | unsigned int filehead; |
68 | 3d3b8303 | wayne | int bmp_bpp;
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69 | 3d3b8303 | wayne | |
70 | d09acb9b | Markus Armbruster | res = g_file_get_contents(filename, &content, file_sizep, &err); |
71 | 9477c87e | Pavel Borzenkov | if (res == FALSE) {
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72 | 9477c87e | Pavel Borzenkov | error_report("failed to read splash file '%s'", filename);
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73 | 9477c87e | Pavel Borzenkov | g_error_free(err); |
74 | 9477c87e | Pavel Borzenkov | return NULL; |
75 | 3d3b8303 | wayne | } |
76 | 9477c87e | Pavel Borzenkov | |
77 | 3d3b8303 | wayne | /* check file size */
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78 | 9477c87e | Pavel Borzenkov | if (*file_sizep < 30) { |
79 | 9477c87e | Pavel Borzenkov | goto error;
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80 | 3d3b8303 | wayne | } |
81 | 9477c87e | Pavel Borzenkov | |
82 | 3d3b8303 | wayne | /* check magic ID */
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83 | 9477c87e | Pavel Borzenkov | filehead = ((content[0] & 0xff) + (content[1] << 8)) & 0xffff; |
84 | 9477c87e | Pavel Borzenkov | if (filehead == 0xd8ff) { |
85 | 3d3b8303 | wayne | file_type = JPG_FILE; |
86 | 9477c87e | Pavel Borzenkov | } else if (filehead == 0x4d42) { |
87 | 9477c87e | Pavel Borzenkov | file_type = BMP_FILE; |
88 | 3d3b8303 | wayne | } else {
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89 | 9477c87e | Pavel Borzenkov | goto error;
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90 | 3d3b8303 | wayne | } |
91 | 9477c87e | Pavel Borzenkov | |
92 | 3d3b8303 | wayne | /* check BMP bpp */
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93 | 3d3b8303 | wayne | if (file_type == BMP_FILE) {
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94 | 9477c87e | Pavel Borzenkov | bmp_bpp = (content[28] + (content[29] << 8)) & 0xffff; |
95 | 3d3b8303 | wayne | if (bmp_bpp != 24) { |
96 | 9477c87e | Pavel Borzenkov | goto error;
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97 | 3d3b8303 | wayne | } |
98 | 3d3b8303 | wayne | } |
99 | 9477c87e | Pavel Borzenkov | |
100 | 3d3b8303 | wayne | /* return values */
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101 | 3d3b8303 | wayne | *file_typep = file_type; |
102 | 9477c87e | Pavel Borzenkov | |
103 | 9477c87e | Pavel Borzenkov | return content;
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104 | 9477c87e | Pavel Borzenkov | |
105 | 9477c87e | Pavel Borzenkov | error:
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106 | 9477c87e | Pavel Borzenkov | error_report("splash file '%s' format not recognized; must be JPEG "
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107 | 9477c87e | Pavel Borzenkov | "or 24 bit BMP", filename);
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108 | 9477c87e | Pavel Borzenkov | g_free(content); |
109 | 9477c87e | Pavel Borzenkov | return NULL; |
110 | 3d3b8303 | wayne | } |
111 | 3d3b8303 | wayne | |
112 | 3d3b8303 | wayne | static void fw_cfg_bootsplash(FWCfgState *s) |
113 | 3d3b8303 | wayne | { |
114 | 3d3b8303 | wayne | int boot_splash_time = -1; |
115 | 3d3b8303 | wayne | const char *boot_splash_filename = NULL; |
116 | 3d3b8303 | wayne | char *p;
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117 | 9477c87e | Pavel Borzenkov | char *filename, *file_data;
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118 | 3d1bba20 | Peter Crosthwaite | gsize file_size; |
119 | 9f8863eb | Markus Armbruster | int file_type;
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120 | 3d3b8303 | wayne | const char *temp; |
121 | 3d3b8303 | wayne | |
122 | 3d3b8303 | wayne | /* get user configuration */
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123 | 3d3b8303 | wayne | QemuOptsList *plist = qemu_find_opts("boot-opts");
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124 | 3d3b8303 | wayne | QemuOpts *opts = QTAILQ_FIRST(&plist->head); |
125 | 3d3b8303 | wayne | if (opts != NULL) { |
126 | 3d3b8303 | wayne | temp = qemu_opt_get(opts, "splash");
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127 | 3d3b8303 | wayne | if (temp != NULL) { |
128 | 3d3b8303 | wayne | boot_splash_filename = temp; |
129 | 3d3b8303 | wayne | } |
130 | 3d3b8303 | wayne | temp = qemu_opt_get(opts, "splash-time");
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131 | 3d3b8303 | wayne | if (temp != NULL) { |
132 | 3d3b8303 | wayne | p = (char *)temp;
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133 | 3d3b8303 | wayne | boot_splash_time = strtol(p, (char **)&p, 10); |
134 | 3d3b8303 | wayne | } |
135 | 3d3b8303 | wayne | } |
136 | 3d3b8303 | wayne | |
137 | 3d3b8303 | wayne | /* insert splash time if user configurated */
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138 | 3d3b8303 | wayne | if (boot_splash_time >= 0) { |
139 | 3d3b8303 | wayne | /* validate the input */
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140 | 3d3b8303 | wayne | if (boot_splash_time > 0xffff) { |
141 | 3d3b8303 | wayne | error_report("splash time is big than 65535, force it to 65535.");
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142 | 3d3b8303 | wayne | boot_splash_time = 0xffff;
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143 | 3d3b8303 | wayne | } |
144 | 3d3b8303 | wayne | /* use little endian format */
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145 | 3d3b8303 | wayne | qemu_extra_params_fw[0] = (uint8_t)(boot_splash_time & 0xff); |
146 | 3d3b8303 | wayne | qemu_extra_params_fw[1] = (uint8_t)((boot_splash_time >> 8) & 0xff); |
147 | 3d3b8303 | wayne | fw_cfg_add_file(s, "etc/boot-menu-wait", qemu_extra_params_fw, 2); |
148 | 3d3b8303 | wayne | } |
149 | 3d3b8303 | wayne | |
150 | 3d3b8303 | wayne | /* insert splash file if user configurated */
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151 | 3d3b8303 | wayne | if (boot_splash_filename != NULL) { |
152 | 3d3b8303 | wayne | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, boot_splash_filename); |
153 | 3d3b8303 | wayne | if (filename == NULL) { |
154 | 3d3b8303 | wayne | error_report("failed to find file '%s'.", boot_splash_filename);
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155 | 3d3b8303 | wayne | return;
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156 | 3d3b8303 | wayne | } |
157 | 9477c87e | Pavel Borzenkov | |
158 | 9477c87e | Pavel Borzenkov | /* loading file data */
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159 | 9477c87e | Pavel Borzenkov | file_data = read_splashfile(filename, &file_size, &file_type); |
160 | 9477c87e | Pavel Borzenkov | if (file_data == NULL) { |
161 | 7267c094 | Anthony Liguori | g_free(filename); |
162 | 3d3b8303 | wayne | return;
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163 | 3d3b8303 | wayne | } |
164 | 3d3b8303 | wayne | if (boot_splash_filedata != NULL) { |
165 | 7267c094 | Anthony Liguori | g_free(boot_splash_filedata); |
166 | 3d3b8303 | wayne | } |
167 | 9477c87e | Pavel Borzenkov | boot_splash_filedata = (uint8_t *)file_data; |
168 | 3d3b8303 | wayne | boot_splash_filedata_size = file_size; |
169 | 9477c87e | Pavel Borzenkov | |
170 | 3d3b8303 | wayne | /* insert data */
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171 | 3d3b8303 | wayne | if (file_type == JPG_FILE) {
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172 | 3d3b8303 | wayne | fw_cfg_add_file(s, "bootsplash.jpg",
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173 | 3d3b8303 | wayne | boot_splash_filedata, boot_splash_filedata_size); |
174 | 3d3b8303 | wayne | } else {
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175 | 3d3b8303 | wayne | fw_cfg_add_file(s, "bootsplash.bmp",
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176 | 3d3b8303 | wayne | boot_splash_filedata, boot_splash_filedata_size); |
177 | 3d3b8303 | wayne | } |
178 | 7267c094 | Anthony Liguori | g_free(filename); |
179 | 3d3b8303 | wayne | } |
180 | 3d3b8303 | wayne | } |
181 | 3d3b8303 | wayne | |
182 | ac05f349 | Amos Kong | static void fw_cfg_reboot(FWCfgState *s) |
183 | ac05f349 | Amos Kong | { |
184 | ac05f349 | Amos Kong | int reboot_timeout = -1; |
185 | ac05f349 | Amos Kong | char *p;
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186 | ac05f349 | Amos Kong | const char *temp; |
187 | ac05f349 | Amos Kong | |
188 | ac05f349 | Amos Kong | /* get user configuration */
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189 | ac05f349 | Amos Kong | QemuOptsList *plist = qemu_find_opts("boot-opts");
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190 | ac05f349 | Amos Kong | QemuOpts *opts = QTAILQ_FIRST(&plist->head); |
191 | ac05f349 | Amos Kong | if (opts != NULL) { |
192 | ac05f349 | Amos Kong | temp = qemu_opt_get(opts, "reboot-timeout");
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193 | ac05f349 | Amos Kong | if (temp != NULL) { |
194 | ac05f349 | Amos Kong | p = (char *)temp;
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195 | ac05f349 | Amos Kong | reboot_timeout = strtol(p, (char **)&p, 10); |
196 | ac05f349 | Amos Kong | } |
197 | ac05f349 | Amos Kong | } |
198 | ac05f349 | Amos Kong | /* validate the input */
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199 | ac05f349 | Amos Kong | if (reboot_timeout > 0xffff) { |
200 | ac05f349 | Amos Kong | error_report("reboot timeout is larger than 65535, force it to 65535.");
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201 | ac05f349 | Amos Kong | reboot_timeout = 0xffff;
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202 | ac05f349 | Amos Kong | } |
203 | ac05f349 | Amos Kong | fw_cfg_add_file(s, "etc/boot-fail-wait", g_memdup(&reboot_timeout, 4), 4); |
204 | ac05f349 | Amos Kong | } |
205 | ac05f349 | Amos Kong | |
206 | 3cce6243 | blueswir1 | static void fw_cfg_write(FWCfgState *s, uint8_t value) |
207 | 3cce6243 | blueswir1 | { |
208 | 3cce6243 | blueswir1 | int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
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209 | 3cce6243 | blueswir1 | FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK]; |
210 | 3cce6243 | blueswir1 | |
211 | f6e35343 | Markus Armbruster | trace_fw_cfg_write(s, value); |
212 | 3cce6243 | blueswir1 | |
213 | 962d4b28 | Blue Swirl | if (s->cur_entry & FW_CFG_WRITE_CHANNEL && e->callback &&
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214 | 962d4b28 | Blue Swirl | s->cur_offset < e->len) { |
215 | 3cce6243 | blueswir1 | e->data[s->cur_offset++] = value; |
216 | 3cce6243 | blueswir1 | if (s->cur_offset == e->len) {
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217 | 3cce6243 | blueswir1 | e->callback(e->callback_opaque, e->data); |
218 | 3cce6243 | blueswir1 | s->cur_offset = 0;
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219 | 3cce6243 | blueswir1 | } |
220 | 3cce6243 | blueswir1 | } |
221 | 3cce6243 | blueswir1 | } |
222 | 3cce6243 | blueswir1 | |
223 | 3cce6243 | blueswir1 | static int fw_cfg_select(FWCfgState *s, uint16_t key) |
224 | 3cce6243 | blueswir1 | { |
225 | 3cce6243 | blueswir1 | int ret;
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226 | 3cce6243 | blueswir1 | |
227 | 3cce6243 | blueswir1 | s->cur_offset = 0;
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228 | 3cce6243 | blueswir1 | if ((key & FW_CFG_ENTRY_MASK) >= FW_CFG_MAX_ENTRY) {
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229 | 3cce6243 | blueswir1 | s->cur_entry = FW_CFG_INVALID; |
230 | 3cce6243 | blueswir1 | ret = 0;
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231 | 3cce6243 | blueswir1 | } else {
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232 | 3cce6243 | blueswir1 | s->cur_entry = key; |
233 | 3cce6243 | blueswir1 | ret = 1;
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234 | 3cce6243 | blueswir1 | } |
235 | 3cce6243 | blueswir1 | |
236 | f6e35343 | Markus Armbruster | trace_fw_cfg_select(s, key, ret); |
237 | 3cce6243 | blueswir1 | return ret;
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238 | 3cce6243 | blueswir1 | } |
239 | 3cce6243 | blueswir1 | |
240 | 3cce6243 | blueswir1 | static uint8_t fw_cfg_read(FWCfgState *s)
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241 | 3cce6243 | blueswir1 | { |
242 | 3cce6243 | blueswir1 | int arch = !!(s->cur_entry & FW_CFG_ARCH_LOCAL);
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243 | 3cce6243 | blueswir1 | FWCfgEntry *e = &s->entries[arch][s->cur_entry & FW_CFG_ENTRY_MASK]; |
244 | 3cce6243 | blueswir1 | uint8_t ret; |
245 | 3cce6243 | blueswir1 | |
246 | 3cce6243 | blueswir1 | if (s->cur_entry == FW_CFG_INVALID || !e->data || s->cur_offset >= e->len)
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247 | 3cce6243 | blueswir1 | ret = 0;
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248 | 3cce6243 | blueswir1 | else
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249 | 3cce6243 | blueswir1 | ret = e->data[s->cur_offset++]; |
250 | 3cce6243 | blueswir1 | |
251 | f6e35343 | Markus Armbruster | trace_fw_cfg_read(s, ret); |
252 | 3cce6243 | blueswir1 | return ret;
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253 | 3cce6243 | blueswir1 | } |
254 | 3cce6243 | blueswir1 | |
255 | a8170e5e | Avi Kivity | static uint64_t fw_cfg_data_mem_read(void *opaque, hwaddr addr, |
256 | 561e1827 | Avi Kivity | unsigned size)
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257 | 3cce6243 | blueswir1 | { |
258 | 3cce6243 | blueswir1 | return fw_cfg_read(opaque);
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259 | 3cce6243 | blueswir1 | } |
260 | 3cce6243 | blueswir1 | |
261 | a8170e5e | Avi Kivity | static void fw_cfg_data_mem_write(void *opaque, hwaddr addr, |
262 | 561e1827 | Avi Kivity | uint64_t value, unsigned size)
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263 | 3cce6243 | blueswir1 | { |
264 | 7442511c | blueswir1 | fw_cfg_write(opaque, (uint8_t)value); |
265 | 3cce6243 | blueswir1 | } |
266 | 3cce6243 | blueswir1 | |
267 | a8170e5e | Avi Kivity | static void fw_cfg_ctl_mem_write(void *opaque, hwaddr addr, |
268 | 561e1827 | Avi Kivity | uint64_t value, unsigned size)
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269 | 3cce6243 | blueswir1 | { |
270 | 3cce6243 | blueswir1 | fw_cfg_select(opaque, (uint16_t)value); |
271 | 3cce6243 | blueswir1 | } |
272 | 3cce6243 | blueswir1 | |
273 | a8170e5e | Avi Kivity | static bool fw_cfg_ctl_mem_valid(void *opaque, hwaddr addr, |
274 | 561e1827 | Avi Kivity | unsigned size, bool is_write) |
275 | 3cce6243 | blueswir1 | { |
276 | 561e1827 | Avi Kivity | return is_write && size == 2; |
277 | 3cce6243 | blueswir1 | } |
278 | 3cce6243 | blueswir1 | |
279 | a8170e5e | Avi Kivity | static uint64_t fw_cfg_comb_read(void *opaque, hwaddr addr, |
280 | 561e1827 | Avi Kivity | unsigned size)
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281 | 3cce6243 | blueswir1 | { |
282 | 561e1827 | Avi Kivity | return fw_cfg_read(opaque);
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283 | 3cce6243 | blueswir1 | } |
284 | 3cce6243 | blueswir1 | |
285 | a8170e5e | Avi Kivity | static void fw_cfg_comb_write(void *opaque, hwaddr addr, |
286 | 561e1827 | Avi Kivity | uint64_t value, unsigned size)
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287 | 3cce6243 | blueswir1 | { |
288 | 561e1827 | Avi Kivity | switch (size) {
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289 | 561e1827 | Avi Kivity | case 1: |
290 | 561e1827 | Avi Kivity | fw_cfg_write(opaque, (uint8_t)value); |
291 | 561e1827 | Avi Kivity | break;
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292 | 561e1827 | Avi Kivity | case 2: |
293 | 561e1827 | Avi Kivity | fw_cfg_select(opaque, (uint16_t)value); |
294 | 561e1827 | Avi Kivity | break;
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295 | 561e1827 | Avi Kivity | } |
296 | 3cce6243 | blueswir1 | } |
297 | 3cce6243 | blueswir1 | |
298 | a8170e5e | Avi Kivity | static bool fw_cfg_comb_valid(void *opaque, hwaddr addr, |
299 | 561e1827 | Avi Kivity | unsigned size, bool is_write) |
300 | 561e1827 | Avi Kivity | { |
301 | 561e1827 | Avi Kivity | return (size == 1) || (is_write && size == 2); |
302 | 561e1827 | Avi Kivity | } |
303 | 3cce6243 | blueswir1 | |
304 | 561e1827 | Avi Kivity | static const MemoryRegionOps fw_cfg_ctl_mem_ops = { |
305 | 561e1827 | Avi Kivity | .write = fw_cfg_ctl_mem_write, |
306 | 561e1827 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
307 | 561e1827 | Avi Kivity | .valid.accepts = fw_cfg_ctl_mem_valid, |
308 | 3cce6243 | blueswir1 | }; |
309 | 3cce6243 | blueswir1 | |
310 | 561e1827 | Avi Kivity | static const MemoryRegionOps fw_cfg_data_mem_ops = { |
311 | 561e1827 | Avi Kivity | .read = fw_cfg_data_mem_read, |
312 | 561e1827 | Avi Kivity | .write = fw_cfg_data_mem_write, |
313 | 561e1827 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
314 | 561e1827 | Avi Kivity | .valid = { |
315 | 561e1827 | Avi Kivity | .min_access_size = 1,
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316 | 561e1827 | Avi Kivity | .max_access_size = 1,
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317 | 561e1827 | Avi Kivity | }, |
318 | 3cce6243 | blueswir1 | }; |
319 | 3cce6243 | blueswir1 | |
320 | 561e1827 | Avi Kivity | static const MemoryRegionOps fw_cfg_comb_mem_ops = { |
321 | 561e1827 | Avi Kivity | .read = fw_cfg_comb_read, |
322 | 561e1827 | Avi Kivity | .write = fw_cfg_comb_write, |
323 | 561e1827 | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
324 | 561e1827 | Avi Kivity | .valid.accepts = fw_cfg_comb_valid, |
325 | 3cce6243 | blueswir1 | }; |
326 | 3cce6243 | blueswir1 | |
327 | 3a5c16fc | Blue Swirl | static void fw_cfg_reset(DeviceState *d) |
328 | 3cce6243 | blueswir1 | { |
329 | 3a5c16fc | Blue Swirl | FWCfgState *s = DO_UPCAST(FWCfgState, busdev.qdev, d); |
330 | 3cce6243 | blueswir1 | |
331 | 3cce6243 | blueswir1 | fw_cfg_select(s, 0);
|
332 | 3cce6243 | blueswir1 | } |
333 | 3cce6243 | blueswir1 | |
334 | ff06108b | Juan Quintela | /* Save restore 32 bit int as uint16_t
|
335 | ff06108b | Juan Quintela | This is a Big hack, but it is how the old state did it.
|
336 | ff06108b | Juan Quintela | Or we broke compatibility in the state, or we can't use struct tm
|
337 | ff06108b | Juan Quintela | */
|
338 | ff06108b | Juan Quintela | |
339 | ff06108b | Juan Quintela | static int get_uint32_as_uint16(QEMUFile *f, void *pv, size_t size) |
340 | ff06108b | Juan Quintela | { |
341 | ff06108b | Juan Quintela | uint32_t *v = pv; |
342 | ff06108b | Juan Quintela | *v = qemu_get_be16(f); |
343 | ff06108b | Juan Quintela | return 0; |
344 | ff06108b | Juan Quintela | } |
345 | ff06108b | Juan Quintela | |
346 | ff06108b | Juan Quintela | static void put_unused(QEMUFile *f, void *pv, size_t size) |
347 | ff06108b | Juan Quintela | { |
348 | 66c80e75 | Vagrant Cascadian | fprintf(stderr, "uint32_as_uint16 is only used for backward compatibility.\n");
|
349 | ff06108b | Juan Quintela | fprintf(stderr, "This functions shouldn't be called.\n");
|
350 | ff06108b | Juan Quintela | } |
351 | ff06108b | Juan Quintela | |
352 | d05ac8fa | Blue Swirl | static const VMStateInfo vmstate_hack_uint32_as_uint16 = { |
353 | ff06108b | Juan Quintela | .name = "int32_as_uint16",
|
354 | ff06108b | Juan Quintela | .get = get_uint32_as_uint16, |
355 | ff06108b | Juan Quintela | .put = put_unused, |
356 | ff06108b | Juan Quintela | }; |
357 | ff06108b | Juan Quintela | |
358 | ff06108b | Juan Quintela | #define VMSTATE_UINT16_HACK(_f, _s, _t) \
|
359 | ff06108b | Juan Quintela | VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_hack_uint32_as_uint16, uint32_t)
|
360 | ff06108b | Juan Quintela | |
361 | ff06108b | Juan Quintela | |
362 | ff06108b | Juan Quintela | static bool is_version_1(void *opaque, int version_id) |
363 | ff06108b | Juan Quintela | { |
364 | ff06108b | Juan Quintela | return version_id == 1; |
365 | ff06108b | Juan Quintela | } |
366 | ff06108b | Juan Quintela | |
367 | 7d2edd40 | Juan Quintela | static const VMStateDescription vmstate_fw_cfg = { |
368 | 7d2edd40 | Juan Quintela | .name = "fw_cfg",
|
369 | ff06108b | Juan Quintela | .version_id = 2,
|
370 | 7d2edd40 | Juan Quintela | .minimum_version_id = 1,
|
371 | 7d2edd40 | Juan Quintela | .minimum_version_id_old = 1,
|
372 | 7d2edd40 | Juan Quintela | .fields = (VMStateField []) { |
373 | 7d2edd40 | Juan Quintela | VMSTATE_UINT16(cur_entry, FWCfgState), |
374 | ff06108b | Juan Quintela | VMSTATE_UINT16_HACK(cur_offset, FWCfgState, is_version_1), |
375 | ff06108b | Juan Quintela | VMSTATE_UINT32_V(cur_offset, FWCfgState, 2),
|
376 | 7d2edd40 | Juan Quintela | VMSTATE_END_OF_LIST() |
377 | 7d2edd40 | Juan Quintela | } |
378 | 7d2edd40 | Juan Quintela | }; |
379 | 3cce6243 | blueswir1 | |
380 | 089da572 | Markus Armbruster | void fw_cfg_add_bytes(FWCfgState *s, uint16_t key, void *data, size_t len) |
381 | 3cce6243 | blueswir1 | { |
382 | 3cce6243 | blueswir1 | int arch = !!(key & FW_CFG_ARCH_LOCAL);
|
383 | 3cce6243 | blueswir1 | |
384 | 3cce6243 | blueswir1 | key &= FW_CFG_ENTRY_MASK; |
385 | 3cce6243 | blueswir1 | |
386 | 089da572 | Markus Armbruster | assert(key < FW_CFG_MAX_ENTRY && len < UINT32_MAX); |
387 | 3cce6243 | blueswir1 | |
388 | 3cce6243 | blueswir1 | s->entries[arch][key].data = data; |
389 | 089da572 | Markus Armbruster | s->entries[arch][key].len = (uint32_t)len; |
390 | 3cce6243 | blueswir1 | } |
391 | 3cce6243 | blueswir1 | |
392 | 44687f75 | Markus Armbruster | void fw_cfg_add_string(FWCfgState *s, uint16_t key, const char *value) |
393 | 44687f75 | Markus Armbruster | { |
394 | 44687f75 | Markus Armbruster | size_t sz = strlen(value) + 1;
|
395 | 44687f75 | Markus Armbruster | |
396 | 089da572 | Markus Armbruster | return fw_cfg_add_bytes(s, key, g_memdup(value, sz), sz);
|
397 | 44687f75 | Markus Armbruster | } |
398 | 44687f75 | Markus Armbruster | |
399 | 4cad3867 | Markus Armbruster | void fw_cfg_add_i16(FWCfgState *s, uint16_t key, uint16_t value)
|
400 | 3cce6243 | blueswir1 | { |
401 | 3cce6243 | blueswir1 | uint16_t *copy; |
402 | 3cce6243 | blueswir1 | |
403 | 7267c094 | Anthony Liguori | copy = g_malloc(sizeof(value));
|
404 | 3cce6243 | blueswir1 | *copy = cpu_to_le16(value); |
405 | 089da572 | Markus Armbruster | fw_cfg_add_bytes(s, key, copy, sizeof(value));
|
406 | 3cce6243 | blueswir1 | } |
407 | 3cce6243 | blueswir1 | |
408 | 4cad3867 | Markus Armbruster | void fw_cfg_add_i32(FWCfgState *s, uint16_t key, uint32_t value)
|
409 | 3cce6243 | blueswir1 | { |
410 | 3cce6243 | blueswir1 | uint32_t *copy; |
411 | 3cce6243 | blueswir1 | |
412 | 7267c094 | Anthony Liguori | copy = g_malloc(sizeof(value));
|
413 | 3cce6243 | blueswir1 | *copy = cpu_to_le32(value); |
414 | 089da572 | Markus Armbruster | fw_cfg_add_bytes(s, key, copy, sizeof(value));
|
415 | 3cce6243 | blueswir1 | } |
416 | 3cce6243 | blueswir1 | |
417 | 4cad3867 | Markus Armbruster | void fw_cfg_add_i64(FWCfgState *s, uint16_t key, uint64_t value)
|
418 | 3cce6243 | blueswir1 | { |
419 | 3cce6243 | blueswir1 | uint64_t *copy; |
420 | 3cce6243 | blueswir1 | |
421 | 7267c094 | Anthony Liguori | copy = g_malloc(sizeof(value));
|
422 | 3cce6243 | blueswir1 | *copy = cpu_to_le64(value); |
423 | 089da572 | Markus Armbruster | fw_cfg_add_bytes(s, key, copy, sizeof(value));
|
424 | 3cce6243 | blueswir1 | } |
425 | 3cce6243 | blueswir1 | |
426 | 4cad3867 | Markus Armbruster | void fw_cfg_add_callback(FWCfgState *s, uint16_t key, FWCfgCallback callback,
|
427 | 089da572 | Markus Armbruster | void *callback_opaque, void *data, size_t len) |
428 | 3cce6243 | blueswir1 | { |
429 | 3cce6243 | blueswir1 | int arch = !!(key & FW_CFG_ARCH_LOCAL);
|
430 | 3cce6243 | blueswir1 | |
431 | 4cad3867 | Markus Armbruster | assert(key & FW_CFG_WRITE_CHANNEL); |
432 | 85df0de4 | blueswir1 | |
433 | 3cce6243 | blueswir1 | key &= FW_CFG_ENTRY_MASK; |
434 | 3cce6243 | blueswir1 | |
435 | 089da572 | Markus Armbruster | assert(key < FW_CFG_MAX_ENTRY && len <= UINT32_MAX); |
436 | 3cce6243 | blueswir1 | |
437 | 3cce6243 | blueswir1 | s->entries[arch][key].data = data; |
438 | 089da572 | Markus Armbruster | s->entries[arch][key].len = (uint32_t)len; |
439 | 3cce6243 | blueswir1 | s->entries[arch][key].callback_opaque = callback_opaque; |
440 | 3cce6243 | blueswir1 | s->entries[arch][key].callback = callback; |
441 | 3cce6243 | blueswir1 | } |
442 | 3cce6243 | blueswir1 | |
443 | 089da572 | Markus Armbruster | void fw_cfg_add_file(FWCfgState *s, const char *filename, |
444 | 089da572 | Markus Armbruster | void *data, size_t len)
|
445 | abe147e0 | Gerd Hoffmann | { |
446 | de9352bc | Gerd Hoffmann | int i, index;
|
447 | 089da572 | Markus Armbruster | size_t dsize; |
448 | abe147e0 | Gerd Hoffmann | |
449 | abe147e0 | Gerd Hoffmann | if (!s->files) {
|
450 | 089da572 | Markus Armbruster | dsize = sizeof(uint32_t) + sizeof(FWCfgFile) * FW_CFG_FILE_SLOTS; |
451 | 7267c094 | Anthony Liguori | s->files = g_malloc0(dsize); |
452 | 089da572 | Markus Armbruster | fw_cfg_add_bytes(s, FW_CFG_FILE_DIR, s->files, dsize); |
453 | abe147e0 | Gerd Hoffmann | } |
454 | abe147e0 | Gerd Hoffmann | |
455 | abe147e0 | Gerd Hoffmann | index = be32_to_cpu(s->files->count); |
456 | 4cad3867 | Markus Armbruster | assert(index < FW_CFG_FILE_SLOTS); |
457 | abe147e0 | Gerd Hoffmann | |
458 | abe147e0 | Gerd Hoffmann | fw_cfg_add_bytes(s, FW_CFG_FILE_FIRST + index, data, len); |
459 | abe147e0 | Gerd Hoffmann | |
460 | de1f34cb | Gleb Natapov | pstrcpy(s->files->f[index].name, sizeof(s->files->f[index].name),
|
461 | de1f34cb | Gleb Natapov | filename); |
462 | de9352bc | Gerd Hoffmann | for (i = 0; i < index; i++) { |
463 | de9352bc | Gerd Hoffmann | if (strcmp(s->files->f[index].name, s->files->f[i].name) == 0) { |
464 | f6e35343 | Markus Armbruster | trace_fw_cfg_add_file_dupe(s, s->files->f[index].name); |
465 | 4cad3867 | Markus Armbruster | return;
|
466 | de9352bc | Gerd Hoffmann | } |
467 | abe147e0 | Gerd Hoffmann | } |
468 | de9352bc | Gerd Hoffmann | |
469 | abe147e0 | Gerd Hoffmann | s->files->f[index].size = cpu_to_be32(len); |
470 | abe147e0 | Gerd Hoffmann | s->files->f[index].select = cpu_to_be16(FW_CFG_FILE_FIRST + index); |
471 | f6e35343 | Markus Armbruster | trace_fw_cfg_add_file(s, index, s->files->f[index].name, len); |
472 | abe147e0 | Gerd Hoffmann | |
473 | abe147e0 | Gerd Hoffmann | s->files->count = cpu_to_be32(index+1);
|
474 | abe147e0 | Gerd Hoffmann | } |
475 | abe147e0 | Gerd Hoffmann | |
476 | 9e8dd451 | Jan Kiszka | static void fw_cfg_machine_ready(struct Notifier *n, void *data) |
477 | 962630f2 | Gleb Natapov | { |
478 | 0e7a7592 | Markus Armbruster | size_t len; |
479 | 962630f2 | Gleb Natapov | FWCfgState *s = container_of(n, FWCfgState, machine_ready); |
480 | 962630f2 | Gleb Natapov | char *bootindex = get_boot_devices_list(&len);
|
481 | 962630f2 | Gleb Natapov | |
482 | 962630f2 | Gleb Natapov | fw_cfg_add_file(s, "bootorder", (uint8_t*)bootindex, len);
|
483 | 962630f2 | Gleb Natapov | } |
484 | 962630f2 | Gleb Natapov | |
485 | c2b5bda4 | Gerd Hoffmann | FWCfgState *fw_cfg_init(uint32_t ctl_port, uint32_t data_port, |
486 | a8170e5e | Avi Kivity | hwaddr ctl_addr, hwaddr data_addr) |
487 | 3cce6243 | blueswir1 | { |
488 | 3a5c16fc | Blue Swirl | DeviceState *dev; |
489 | 3a5c16fc | Blue Swirl | SysBusDevice *d; |
490 | 3cce6243 | blueswir1 | FWCfgState *s; |
491 | 3cce6243 | blueswir1 | |
492 | 3a5c16fc | Blue Swirl | dev = qdev_create(NULL, "fw_cfg"); |
493 | 3a5c16fc | Blue Swirl | qdev_prop_set_uint32(dev, "ctl_iobase", ctl_port);
|
494 | 3a5c16fc | Blue Swirl | qdev_prop_set_uint32(dev, "data_iobase", data_port);
|
495 | 1356b98d | Andreas Färber | d = SYS_BUS_DEVICE(dev); |
496 | 3a5c16fc | Blue Swirl | |
497 | 3a5c16fc | Blue Swirl | s = DO_UPCAST(FWCfgState, busdev.qdev, dev); |
498 | 3cce6243 | blueswir1 | |
499 | cac12210 | Michael S. Tsirkin | assert(!object_resolve_path(FW_CFG_PATH, NULL));
|
500 | cac12210 | Michael S. Tsirkin | |
501 | cac12210 | Michael S. Tsirkin | object_property_add_child(qdev_get_machine(), FW_CFG_NAME, OBJECT(s), NULL);
|
502 | 10a584b2 | Hu Tao | |
503 | 10a584b2 | Hu Tao | qdev_init_nofail(dev); |
504 | 10a584b2 | Hu Tao | |
505 | 3cce6243 | blueswir1 | if (ctl_addr) {
|
506 | 3a5c16fc | Blue Swirl | sysbus_mmio_map(d, 0, ctl_addr);
|
507 | 3cce6243 | blueswir1 | } |
508 | 3cce6243 | blueswir1 | if (data_addr) {
|
509 | 3a5c16fc | Blue Swirl | sysbus_mmio_map(d, 1, data_addr);
|
510 | 3cce6243 | blueswir1 | } |
511 | 089da572 | Markus Armbruster | fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (char *)"QEMU", 4); |
512 | 084a197a | blueswir1 | fw_cfg_add_bytes(s, FW_CFG_UUID, qemu_uuid, 16);
|
513 | 993fbfdb | Anthony Liguori | fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)(display_type == DT_NOGRAPHIC)); |
514 | 905fdcb5 | blueswir1 | fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus); |
515 | 95387491 | Jan Kiszka | fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu); |
516 | 3d3b8303 | wayne | fw_cfg_bootsplash(s); |
517 | ac05f349 | Amos Kong | fw_cfg_reboot(s); |
518 | 962630f2 | Gleb Natapov | |
519 | 962630f2 | Gleb Natapov | s->machine_ready.notify = fw_cfg_machine_ready; |
520 | 962630f2 | Gleb Natapov | qemu_add_machine_init_done_notifier(&s->machine_ready); |
521 | 962630f2 | Gleb Natapov | |
522 | 3cce6243 | blueswir1 | return s;
|
523 | 3cce6243 | blueswir1 | } |
524 | 3a5c16fc | Blue Swirl | |
525 | 3a5c16fc | Blue Swirl | static int fw_cfg_init1(SysBusDevice *dev) |
526 | 3a5c16fc | Blue Swirl | { |
527 | 3a5c16fc | Blue Swirl | FWCfgState *s = FROM_SYSBUS(FWCfgState, dev); |
528 | 3a5c16fc | Blue Swirl | |
529 | 561e1827 | Avi Kivity | memory_region_init_io(&s->ctl_iomem, &fw_cfg_ctl_mem_ops, s, |
530 | 561e1827 | Avi Kivity | "fwcfg.ctl", FW_CFG_SIZE);
|
531 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->ctl_iomem); |
532 | 561e1827 | Avi Kivity | memory_region_init_io(&s->data_iomem, &fw_cfg_data_mem_ops, s, |
533 | 561e1827 | Avi Kivity | "fwcfg.data", FW_CFG_DATA_SIZE);
|
534 | 750ecd44 | Avi Kivity | sysbus_init_mmio(dev, &s->data_iomem); |
535 | 561e1827 | Avi Kivity | /* In case ctl and data overlap: */
|
536 | 561e1827 | Avi Kivity | memory_region_init_io(&s->comb_iomem, &fw_cfg_comb_mem_ops, s, |
537 | 561e1827 | Avi Kivity | "fwcfg", FW_CFG_SIZE);
|
538 | 561e1827 | Avi Kivity | |
539 | 561e1827 | Avi Kivity | if (s->ctl_iobase + 1 == s->data_iobase) { |
540 | 561e1827 | Avi Kivity | sysbus_add_io(dev, s->ctl_iobase, &s->comb_iomem); |
541 | 561e1827 | Avi Kivity | } else {
|
542 | 561e1827 | Avi Kivity | if (s->ctl_iobase) {
|
543 | 561e1827 | Avi Kivity | sysbus_add_io(dev, s->ctl_iobase, &s->ctl_iomem); |
544 | 561e1827 | Avi Kivity | } |
545 | 561e1827 | Avi Kivity | if (s->data_iobase) {
|
546 | 561e1827 | Avi Kivity | sysbus_add_io(dev, s->data_iobase, &s->data_iomem); |
547 | 561e1827 | Avi Kivity | } |
548 | 3a5c16fc | Blue Swirl | } |
549 | 3a5c16fc | Blue Swirl | return 0; |
550 | 3a5c16fc | Blue Swirl | } |
551 | 3a5c16fc | Blue Swirl | |
552 | 999e12bb | Anthony Liguori | static Property fw_cfg_properties[] = {
|
553 | 999e12bb | Anthony Liguori | DEFINE_PROP_HEX32("ctl_iobase", FWCfgState, ctl_iobase, -1), |
554 | 999e12bb | Anthony Liguori | DEFINE_PROP_HEX32("data_iobase", FWCfgState, data_iobase, -1), |
555 | 999e12bb | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
556 | 999e12bb | Anthony Liguori | }; |
557 | 999e12bb | Anthony Liguori | |
558 | 600c60b7 | Michael S. Tsirkin | FWCfgState *fw_cfg_find(void)
|
559 | 600c60b7 | Michael S. Tsirkin | { |
560 | 600c60b7 | Michael S. Tsirkin | return OBJECT_CHECK(FWCfgState, object_resolve_path(FW_CFG_PATH, NULL), |
561 | 600c60b7 | Michael S. Tsirkin | TYPE_FW_CFG); |
562 | 600c60b7 | Michael S. Tsirkin | } |
563 | 600c60b7 | Michael S. Tsirkin | |
564 | 999e12bb | Anthony Liguori | static void fw_cfg_class_init(ObjectClass *klass, void *data) |
565 | 999e12bb | Anthony Liguori | { |
566 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
567 | 999e12bb | Anthony Liguori | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); |
568 | 999e12bb | Anthony Liguori | |
569 | 999e12bb | Anthony Liguori | k->init = fw_cfg_init1; |
570 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
571 | 39bffca2 | Anthony Liguori | dc->reset = fw_cfg_reset; |
572 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_fw_cfg; |
573 | 39bffca2 | Anthony Liguori | dc->props = fw_cfg_properties; |
574 | 999e12bb | Anthony Liguori | } |
575 | 999e12bb | Anthony Liguori | |
576 | 8c43a6f0 | Andreas Färber | static const TypeInfo fw_cfg_info = { |
577 | 600c60b7 | Michael S. Tsirkin | .name = TYPE_FW_CFG, |
578 | 39bffca2 | Anthony Liguori | .parent = TYPE_SYS_BUS_DEVICE, |
579 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(FWCfgState),
|
580 | 39bffca2 | Anthony Liguori | .class_init = fw_cfg_class_init, |
581 | 3a5c16fc | Blue Swirl | }; |
582 | 3a5c16fc | Blue Swirl | |
583 | 83f7d43a | Andreas Färber | static void fw_cfg_register_types(void) |
584 | 3a5c16fc | Blue Swirl | { |
585 | 39bffca2 | Anthony Liguori | type_register_static(&fw_cfg_info); |
586 | 3a5c16fc | Blue Swirl | } |
587 | 3a5c16fc | Blue Swirl | |
588 | 83f7d43a | Andreas Färber | type_init(fw_cfg_register_types) |