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bootdevice: move bootdevice related code to new file bootdevice.c
Signed-off-by: Gonglei <[email protected]> Reviewed-by: Gerd Hoffmann <[email protected]> Signed-off-by: Gerd Hoffmann <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| /* | ||
| * QEMU Boot Device Implement | ||
| * | ||
| * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO.,LTD. | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| */ | ||
|
|
||
| #include "sysemu/sysemu.h" | ||
|
|
||
| typedef struct FWBootEntry FWBootEntry; | ||
|
|
||
| struct FWBootEntry { | ||
| QTAILQ_ENTRY(FWBootEntry) link; | ||
| int32_t bootindex; | ||
| DeviceState *dev; | ||
| char *suffix; | ||
| }; | ||
|
|
||
| static QTAILQ_HEAD(, FWBootEntry) fw_boot_order = | ||
| QTAILQ_HEAD_INITIALIZER(fw_boot_order); | ||
|
|
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| void add_boot_device_path(int32_t bootindex, DeviceState *dev, | ||
| const char *suffix) | ||
| { | ||
| FWBootEntry *node, *i; | ||
|
|
||
| if (bootindex < 0) { | ||
| return; | ||
| } | ||
|
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| assert(dev != NULL || suffix != NULL); | ||
|
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| node = g_malloc0(sizeof(FWBootEntry)); | ||
| node->bootindex = bootindex; | ||
| node->suffix = g_strdup(suffix); | ||
| node->dev = dev; | ||
|
|
||
| QTAILQ_FOREACH(i, &fw_boot_order, link) { | ||
| if (i->bootindex == bootindex) { | ||
| fprintf(stderr, "Two devices with same boot index %d\n", bootindex); | ||
| exit(1); | ||
| } else if (i->bootindex < bootindex) { | ||
| continue; | ||
| } | ||
| QTAILQ_INSERT_BEFORE(i, node, link); | ||
| return; | ||
| } | ||
| QTAILQ_INSERT_TAIL(&fw_boot_order, node, link); | ||
| } | ||
|
|
||
| DeviceState *get_boot_device(uint32_t position) | ||
| { | ||
| uint32_t counter = 0; | ||
| FWBootEntry *i = NULL; | ||
| DeviceState *res = NULL; | ||
|
|
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| if (!QTAILQ_EMPTY(&fw_boot_order)) { | ||
| QTAILQ_FOREACH(i, &fw_boot_order, link) { | ||
| if (counter == position) { | ||
| res = i->dev; | ||
| break; | ||
| } | ||
| counter++; | ||
| } | ||
| } | ||
| return res; | ||
| } | ||
|
|
||
| /* | ||
| * This function returns null terminated string that consist of new line | ||
| * separated device paths. | ||
| * | ||
| * memory pointed by "size" is assigned total length of the array in bytes | ||
| * | ||
| */ | ||
| char *get_boot_devices_list(size_t *size, bool ignore_suffixes) | ||
| { | ||
| FWBootEntry *i; | ||
| size_t total = 0; | ||
| char *list = NULL; | ||
|
|
||
| QTAILQ_FOREACH(i, &fw_boot_order, link) { | ||
| char *devpath = NULL, *bootpath; | ||
| size_t len; | ||
|
|
||
| if (i->dev) { | ||
| devpath = qdev_get_fw_dev_path(i->dev); | ||
| assert(devpath); | ||
| } | ||
|
|
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| if (i->suffix && !ignore_suffixes && devpath) { | ||
| size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1; | ||
|
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| bootpath = g_malloc(bootpathlen); | ||
| snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix); | ||
| g_free(devpath); | ||
| } else if (devpath) { | ||
| bootpath = devpath; | ||
| } else if (!ignore_suffixes) { | ||
| assert(i->suffix); | ||
| bootpath = g_strdup(i->suffix); | ||
| } else { | ||
| bootpath = g_strdup(""); | ||
| } | ||
|
|
||
| if (total) { | ||
| list[total-1] = '\n'; | ||
| } | ||
| len = strlen(bootpath) + 1; | ||
| list = g_realloc(list, total + len); | ||
| memcpy(&list[total], bootpath, len); | ||
| total += len; | ||
| g_free(bootpath); | ||
| } | ||
|
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| *size = total; | ||
|
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| if (boot_strict && *size > 0) { | ||
| list[total-1] = '\n'; | ||
| list = g_realloc(list, total + 5); | ||
| memcpy(&list[total], "HALT", 5); | ||
| *size = total + 5; | ||
| } | ||
| return list; | ||
| } |
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