On Mon, Feb 03, 2014 at 02:37:34PM -0500, Boris Ostrovsky wrote:
> It exploded when 'if (!container)' check was done *after* relocation,
> which made container non-zero. If you do the check *before* then I
> think you will catch the fact that container is empty.

Ah, right, this was it.

Ok, just remove the signature check then and give it a try pls:

--
diff --git a/arch/x86/kernel/cpu/microcode/amd_early.c 
b/arch/x86/kernel/cpu/microcode/amd_early.c
index 41537ae7c31d..362994511be1 100644
--- a/arch/x86/kernel/cpu/microcode/amd_early.c
+++ b/arch/x86/kernel/cpu/microcode/amd_early.c
@@ -37,12 +37,10 @@ static __initdata char ucode_path[] = 
"kernel/x86/microcode/AuthenticAMD.bin";
 
 static struct cpio_data __init find_ucode_in_initrd(void)
 {
-       struct cpio_data ret;
        long offset = 0;
        char *path;
        void *start;
        size_t size;
-       u32 *hdr;
 
 #ifdef CONFIG_X86_32
        struct boot_params *p;
@@ -60,21 +58,7 @@ static struct cpio_data __init find_ucode_in_initrd(void)
        start   = (void *)(boot_params.hdr.ramdisk_image + PAGE_OFFSET);
        size    = boot_params.hdr.ramdisk_size;
 #endif
-
-       ret = find_cpio_data(path, start, size, &offset);
-       if (!ret.data)
-               return ret;
-
-       /* Verify we didn't get some garbage from the initrd. */
-       hdr = (u32 *)ret.data;
-
-       if (hdr[0] != UCODE_MAGIC ||
-           hdr[1] != UCODE_EQUIV_CPU_TABLE_TYPE ||
-           hdr[2] == 0) {
-               ret.data = NULL;
-               ret.size = 0;
-       }
-       return ret;
+       return find_cpio_data(path, start, size, &offset);
 }
 
 static size_t compute_container_size(u8 *data, u32 total_size)
--

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
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