示例#1
0
static void *
get_next_ucode(int cpu, const u8 *buf, unsigned int size, unsigned int *mc_size)
{
	unsigned int actual_size = 0;
	u8 section_hdr[UCODE_CONTAINER_SECTION_HDR];
	void *mc = NULL;

	if (get_ucode_data(section_hdr, buf, UCODE_CONTAINER_SECTION_HDR))
		return NULL;

	if (section_hdr[0] != UCODE_UCODE_TYPE) {
		printk(KERN_ERR "microcode: error: invalid type field in "
		       "container file section header\n");
		return NULL;
	}

	actual_size = verify_ucode_size(cpu, buf, size);
	if (!actual_size)
		return NULL;

	mc = vmalloc(actual_size);
	if (!mc)
		return NULL;

	memset(mc, 0, actual_size);
	get_ucode_data(mc, buf + UCODE_CONTAINER_SECTION_HDR, actual_size);
	*mc_size = actual_size + UCODE_CONTAINER_SECTION_HDR;

	return mc;
}
static struct microcode_header_amd *
get_next_ucode(int cpu, const u8 *buf, unsigned int size, unsigned int *mc_size)
{
	struct microcode_header_amd *mc = NULL;
	unsigned int actual_size = 0;

	if (*(u32 *)buf != UCODE_UCODE_TYPE) {
		pr_err("invalid type field in container file section header\n");
		goto out;
	}

	actual_size = verify_ucode_size(cpu, buf, size);
	if (!actual_size)
		goto out;

	mc = vzalloc(actual_size);
	if (!mc)
		goto out;

	get_ucode_data(mc, buf + SECTION_HDR_SIZE, actual_size);
	*mc_size = actual_size + SECTION_HDR_SIZE;

out:
	return mc;
}