Re: [PATCH v7 00/27] x86, boot, 64bit: Add support for loading ramdiskand bzImage above 4G

[H. Peter Anvin]

On 12/22/2012 05:24 AM, Konrad Rzeszutek Wilk wrote:
> Interestingly enough I only see this on any AMD machine - different
> motherboards, different memory configurations.
>
> And also in a HVM guest running on an AMD machine. If it runs on Intel
> it works just fine.

Could this be the ljmpq problem that Borislav reported (Intel 
implemented ljmpq, AMD didn't, and I was tempted by a micro-optimization 
which broke AMD which made it into the patchset)?

	-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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