Re: [Xen-devel] [PATCH 2 of 3] Enable UEFI BIOS(OVMF) support in Xen-unstable HVM

[Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>]

On Tue, 2011-08-09 at 15:47 +0100, Keir Fraser wrote:
> On 09/08/2011 15:39, "Ian Campbell" <Ian.Campbell@xxxxxxxxxxxxx> wrote:
> 
> >>> +    { "ovmf-ia32", &ovmf32_config, },
> >>> +    { "ovmf-x64", &ovmf64_config, },
> >>         
> >>         
> >>         I suppose these (asymmetric) names are OVMF-isms?
> >> Yes, these two are the names of OVMF BIOS in platform IA32 and X64.
> > 
> > Ick, but oh well...
> > 
> > Is there any reason to prefer one to the other? How do I choose which
> > one I want? Can it be autodetected?
> 
> I suspect ovmf-x64 is a superset of the capabilities of ovmf-ia32 (e.g.,
> ability to boot UEFI-bootable 64-bit OSes?). If so, we should only support
> one config option -- "ovmf" -- and have hvmloader auto-load the appropriate
> OVMF build, based on CPUID.long_mode.

Yes, that's the sort of thing I was getting at.

Ian.



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