Re: AMD microcode loading broken on 32 bit

From: Borislav Petkov
Date: Tue Jan 21 2014 - 13:26:19 EST


On Tue, Jan 21, 2014 at 12:55:53PM -0500, Boris Ostrovsky wrote:
> cat $(AMD_UCODE_PATH)/* >
> ucode_initrd/kernel/x86/microcode/AuthenticAMD.bin
> (cd ucode_initrd;find . | cpio -o -H newc >
> ../$(DISTDIR)/common/ucode_initrd.cpio)
> ...
> cat $(DISTDIR)/common/ucode_initrd.cpio \
> $(DISTDIR)/common/_initramfs.cpio.gz > \
> $(DISTDIR)/common/initramfs.cpio.gz
>
> and as I just discovered, with a little twist: apparently
> AMD_UCODE_PATH points to Intel microcode.

LOL!

@hpa: in case you were wondering whether Intel ucode works on AMD - it
doesn't! :-)

> So we clearly screwed up on our end but I'd think that we shouldn't
> crash when this happens.

Yes, we shouldn't. I'll try to reproduce it here.

Thanks.

--
Regards/Gruss,
Boris.

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