From mboxrd@z Thu Jan  1 00:00:00 1970
From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: RFC: making the PVH 64bit ABI as stableo
Date: Fri, 05 Jun 2015 12:43:41 -0400
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To: =?windows-1252?Q?Roger_Pau_Monn=E9?= <roger.pau@citrix.com>, Jan Beulich <JBeulich@suse.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Elena Ufimtseva <elena.ufimtseva@oracle.com>, Lars Kurth <lars.kurth@citrix.com>, Tim Deegan <tim@xen.org>, David Vrabel <david.vrabel@citrix.com>, xen-devel <xen-devel@lists.xenproject.org>
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On 06/05/2015 12:16 PM, Roger Pau Monn=E9 wrote:
> El 03/06/15 a les 14.08, Jan Beulich ha escrit:
>>>>> On 03.06.15 at 12:02, <stefano.stabellini@eu.citrix.com> wrote:
>>> On Tue, 2 Jun 2015, Andrew Cooper wrote:
>>>> With my x86 maintainer hat on, the following is an absolute minimum set
>>>> of prerequisite for PVH.
>>>>
>>>> * 32bit support
>>> Could you please explain why 32bit is important to get PVH out of tech
>>> preview? I don't see 32 bit OSes as an important use case. Maybe there
>>> is more behind it that I cannot see.
>> The primary reason was named before: 32-bit support will likely
>> end up changing the way 64-bit guests get launched.
> I can work on the new boot ABI, even if it's just a design document now,
> but the actual implementation needs to be done on top of the 32-bit
> support series.
>
> Boris, do you think you could send an early RFC of your 32-bit support
> series in a couple of weeks at most?

That's highly unlikely. For one, I am still unable to boot MP guests. In =

addition, it is all held together by rubber bands and matchsticks so =

calling it an RFC would be an insult to RFCs. (for example, I apparently =

broke HVM somewhere along the way).


-boris