aboutsummaryrefslogtreecommitdiff
path: root/hw/i386/pc_sysfw.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/i386/pc_sysfw.c')
-rw-r--r--hw/i386/pc_sysfw.c123
1 files changed, 0 insertions, 123 deletions
diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c
index 6ddce92a86..68d6b1f783 100644
--- a/hw/i386/pc_sysfw.c
+++ b/hw/i386/pc_sysfw.c
@@ -124,129 +124,6 @@ void pc_system_flash_cleanup_unused(PCMachineState *pcms)
}
}
-#define OVMF_TABLE_FOOTER_GUID "96b582de-1fb2-45f7-baea-a366c55a082d"
-
-static bool ovmf_flash_parsed;
-static uint8_t *ovmf_table;
-static int ovmf_table_len;
-
-static void pc_system_parse_ovmf_flash(uint8_t *flash_ptr, size_t flash_size)
-{
- uint8_t *ptr;
- QemuUUID guid;
- int tot_len;
-
- /* should only be called once */
- if (ovmf_flash_parsed) {
- return;
- }
-
- ovmf_flash_parsed = true;
-
- if (flash_size < TARGET_PAGE_SIZE) {
- return;
- }
-
- /*
- * if this is OVMF there will be a table footer
- * guid 48 bytes before the end of the flash file. If it's
- * not found, silently abort the flash parsing.
- */
- qemu_uuid_parse(OVMF_TABLE_FOOTER_GUID, &guid);
- guid = qemu_uuid_bswap(guid); /* guids are LE */
- ptr = flash_ptr + flash_size - 48;
- if (!qemu_uuid_is_equal((QemuUUID *)ptr, &guid)) {
- return;
- }
-
- /* if found, just before is two byte table length */
- ptr -= sizeof(uint16_t);
- tot_len = le16_to_cpu(*(uint16_t *)ptr) - sizeof(guid) - sizeof(uint16_t);
-
- if (tot_len <= 0) {
- return;
- }
-
- ovmf_table = g_malloc(tot_len);
- ovmf_table_len = tot_len;
-
- /*
- * ptr is the foot of the table, so copy it all to the newly
- * allocated ovmf_table and then set the ovmf_table pointer
- * to the table foot
- */
- memcpy(ovmf_table, ptr - tot_len, tot_len);
- ovmf_table += tot_len;
-}
-
-/**
- * pc_system_ovmf_table_find - Find the data associated with an entry in OVMF's
- * reset vector GUIDed table.
- *
- * @entry: GUID string of the entry to lookup
- * @data: Filled with a pointer to the entry's value (if not NULL)
- * @data_len: Filled with the length of the entry's value (if not NULL). Pass
- * NULL here if the length of data is known.
- *
- * Return: true if the entry was found in the OVMF table; false otherwise.
- */
-bool pc_system_ovmf_table_find(const char *entry, uint8_t **data,
- int *data_len)
-{
- uint8_t *ptr = ovmf_table;
- int tot_len = ovmf_table_len;
- QemuUUID entry_guid;
-
- assert(ovmf_flash_parsed);
-
- if (qemu_uuid_parse(entry, &entry_guid) < 0) {
- return false;
- }
-
- if (!ptr) {
- return false;
- }
-
- entry_guid = qemu_uuid_bswap(entry_guid); /* guids are LE */
- while (tot_len >= sizeof(QemuUUID) + sizeof(uint16_t)) {
- int len;
- QemuUUID *guid;
-
- /*
- * The data structure is
- * arbitrary length data
- * 2 byte length of entire entry
- * 16 byte guid
- */
- guid = (QemuUUID *)(ptr - sizeof(QemuUUID));
- len = le16_to_cpu(*(uint16_t *)(ptr - sizeof(QemuUUID) -
- sizeof(uint16_t)));
-
- /*
- * just in case the table is corrupt, wouldn't want to spin in
- * the zero case
- */
- if (len < sizeof(QemuUUID) + sizeof(uint16_t)) {
- return false;
- } else if (len > tot_len) {
- return false;
- }
-
- ptr -= len;
- tot_len -= len;
- if (qemu_uuid_is_equal(guid, &entry_guid)) {
- if (data) {
- *data = ptr;
- }
- if (data_len) {
- *data_len = len - sizeof(QemuUUID) - sizeof(uint16_t);
- }
- return true;
- }
- }
- return false;
-}
-
/*
* Map the pcms->flash[] from 4GiB downward, and realize.
* Map them in descending order, i.e. pcms->flash[0] at the top,