Re: [PATCH] x86-64: espfix for 64-bit mode *PROTOTYPE*

H. Peter Anvin
2014-04-23T16:56:55Z

On 04/23/2014 07:24 AM, Boris Ostrovsky wrote:
>>
>> Konrad - I really could use some help figuring out what needs to be done
>> for this not to break Xen.
>
> This does break Xen PV:
>

I know it does. This is why I asked for help.

This is fundamentally the problem with PV and *especially* the way Xen
PV was integrated into Linux: it acts as a development brake for native
hardware. Fortunately, Konrad has been quite responsive to that kind of
problems, which hasn't always been true of the Xen community in the past.

-hpa