Messages in this thread | | | Date | Wed, 26 Nov 2014 11:55:18 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH 3.17 100/141] x86, microcode: Fix accessing dis_ucode_ldr on 32-bit |
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On Wed, Nov 26, 2014 at 12:00:45AM -0500, Boris Ostrovsky wrote: > Sigh... I take this back. It breaks 32-bit baremetal. I haven't looked any > further but it seems to be dying very early. I suspect cpuid pv_op is not > set up yet. If that's true, perhaps you could check whether it is valid in > x86_guest()?
Right, this is why we're using the native variants in the early loader. So we need a different method for detecting very early whether we're running as a guest.
What I'd like more, though, is if we continue debugging the original issue where we fail in load_ucode_intel_ap(). Does it happen on this line:
initrd_start_addr = (unsigned long)__pa_nodebug(*initrd_start_p);
where we deref the initrd_start_p? Do you have a full splat with a Code: section?
Thanks.
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
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