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

[H. Peter Anvin]

On 01/08/2013 01:19 PM, Borislav Petkov wrote:
> On Tue, Jan 08, 2013 at 01:15:41PM -0800, H. Peter Anvin wrote:
> > Yes, but why bother...
>
> I suspected something like that to be the reason after reading into that
> section of the APM of how one needs to jump through hoops to do one
> lousy far jump.

The only thing that started this was that I got tempted into a 
microoptimization that happens to be valid and documented on Intel, but 
not AMD.  Given that it doesn't actually work lretq is probably the 
least insane option.

	-hpa

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/