Re: [PATCH] hvmloader: write extra memory in CMOS

Jan Beulich
Tue, 12 Nov 2013 13:56:02 -0000

>>> On 12.11.13 at 14:39, Wei Liu <wei.liu2@citrix.com> wrote:
> On Tue, Nov 12, 2013 at 01:21:36PM +0000, Jan Beulich wrote:
>> >>> On 12.11.13 at 13:37, Wei Liu <wei.liu2@citrix.com>
wrote:
>> > However in some CMOS maps I found those bytes are marked as
reserved.
>>
>> Exactly. The question is whether some _other_ BIOSes then use
>> these register for other purposes...
>>
>
> So I think now the solution is to make this code OVMF only, are you fine
> with this?

Yes, provided you widen the location to at least 4 bytes.

Jan