return ret;
}
-static int install_equiv_cpu_table(const u8 *buf)
+static size_t install_equiv_cpu_table(const u8 *buf, size_t buf_size)
{
- unsigned int *ibuf = (unsigned int *)buf;
- unsigned int type = ibuf[1];
- unsigned int size = ibuf[2];
+ u32 equiv_tbl_len;
+ const u32 *hdr;
- if (type != UCODE_EQUIV_CPU_TABLE_TYPE || !size) {
- pr_err("empty section/"
- "invalid type field in container file section header\n");
- return -EINVAL;
- }
+ if (!verify_equivalence_table(buf, buf_size, false))
+ return 0;
- equiv_cpu_table = vmalloc(size);
+ hdr = (const u32 *)buf;
+ equiv_tbl_len = hdr[2];
+
+ equiv_cpu_table = vmalloc(equiv_tbl_len);
if (!equiv_cpu_table) {
pr_err("failed to allocate equivalent CPU table\n");
- return -ENOMEM;
+ return 0;
}
- memcpy(equiv_cpu_table, buf + CONTAINER_HDR_SZ, size);
+ memcpy(equiv_cpu_table, buf + CONTAINER_HDR_SZ, equiv_tbl_len);
/* add header length */
- return size + CONTAINER_HDR_SZ;
+ return equiv_tbl_len + CONTAINER_HDR_SZ;
}
static void free_equiv_cpu_table(void)
size_t size)
{
u8 *fw = (u8 *)data;
- int offset;
+ size_t offset;
- offset = install_equiv_cpu_table(data);
- if (offset < 0) {
- pr_err("failed to create equivalent cpu table\n");
+ offset = install_equiv_cpu_table(data, size);
+ if (!offset)
return UCODE_ERROR;
- }
+
fw += offset;
size -= offset;
}
ret = UCODE_ERROR;
- if (*(u32 *)fw->data != UCODE_MAGIC) {
- pr_err("invalid magic value (0x%08x)\n", *(u32 *)fw->data);
+ if (!verify_container(fw->data, fw->size, false))
goto fw_release;
- }
ret = load_microcode_amd(bsp, c->x86, fw->data, fw->size);