2 * QEMU Boot Device Implement
4 * Copyright (c) 2014 HUAWEI TECHNOLOGIES CO.,LTD.
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25 #include "sysemu/sysemu.h"
27 typedef struct FWBootEntry FWBootEntry;
30 QTAILQ_ENTRY(FWBootEntry) link;
36 static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
37 QTAILQ_HEAD_INITIALIZER(fw_boot_order);
39 void check_boot_index(int32_t bootindex, Error **errp)
44 QTAILQ_FOREACH(i, &fw_boot_order, link) {
45 if (i->bootindex == bootindex) {
46 error_setg(errp, "The bootindex %d has already been used",
54 void del_boot_device_path(DeviceState *dev, const char *suffix)
62 QTAILQ_FOREACH(i, &fw_boot_order, link) {
63 if ((!suffix || !g_strcmp0(i->suffix, suffix)) &&
65 QTAILQ_REMOVE(&fw_boot_order, i, link);
74 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
77 FWBootEntry *node, *i;
83 assert(dev != NULL || suffix != NULL);
85 node = g_malloc0(sizeof(FWBootEntry));
86 node->bootindex = bootindex;
87 node->suffix = g_strdup(suffix);
90 QTAILQ_FOREACH(i, &fw_boot_order, link) {
91 if (i->bootindex == bootindex) {
92 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
94 } else if (i->bootindex < bootindex) {
97 QTAILQ_INSERT_BEFORE(i, node, link);
100 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
103 DeviceState *get_boot_device(uint32_t position)
105 uint32_t counter = 0;
106 FWBootEntry *i = NULL;
107 DeviceState *res = NULL;
109 if (!QTAILQ_EMPTY(&fw_boot_order)) {
110 QTAILQ_FOREACH(i, &fw_boot_order, link) {
111 if (counter == position) {
122 * This function returns null terminated string that consist of new line
123 * separated device paths.
125 * memory pointed by "size" is assigned total length of the array in bytes
128 char *get_boot_devices_list(size_t *size, bool ignore_suffixes)
134 QTAILQ_FOREACH(i, &fw_boot_order, link) {
135 char *devpath = NULL, *bootpath;
139 devpath = qdev_get_fw_dev_path(i->dev);
143 if (i->suffix && !ignore_suffixes && devpath) {
144 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
146 bootpath = g_malloc(bootpathlen);
147 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
149 } else if (devpath) {
151 } else if (!ignore_suffixes) {
153 bootpath = g_strdup(i->suffix);
155 bootpath = g_strdup("");
159 list[total-1] = '\n';
161 len = strlen(bootpath) + 1;
162 list = g_realloc(list, total + len);
163 memcpy(&list[total], bootpath, len);
170 if (boot_strict && *size > 0) {
171 list[total-1] = '\n';
172 list = g_realloc(list, total + 5);
173 memcpy(&list[total], "HALT", 5);