Re: [Xen-devel] [PATCH 1 of 2] Add the support for Xen to include OVMF UEFI support and directly use it

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2012-02-23 at 10:18 +0000, Attilio Rao wrote:
> On 23/02/12 10:07, Ian Campbell wrote:
> > On Wed, 2012-02-22 at 19:17 +0000, Attilio Rao wrote:
> >    
> >> A way to integrate OVMF build directly into XEN has still be discussed
> >> on the mailing list appropriately.
> >>      
> > AIUI OVMF is maintained in SVN. Our normal procedure for adding an
> > external dependency would be for us to mirror it on xenbits as a
> > convenience to our users, who don't need to get stuff from multiple
> > places, and as a courtesy to our upstreams, so our users don't consume
> > their resources.
> >
> > I don't much fancy setting the necessary webdav or whatever stuff on
> > xenbits and integrating SVN support into our build system though. What
> > do people think about using git-svn to manage our mirror in git instead?
> > Or better: perhaps OVMF have an official git or hg mirror?
> >
> > Anyone have any thoughts/opinions/better ideas etc?
> >
> >    
> >> diff -r a88ba599add1 -r 032fea10f8d1 tools/firmware/hvmloader/config.h
> >> --- a/tools/firmware/hvmloader/config.h    Tue Feb 21 17:45:59 2012 +0000
> >> +++ b/tools/firmware/hvmloader/config.h    Wed Feb 22 18:54:03 2012 +0000
> >> @@ -35,6 +35,8 @@ struct bios_config {
> >>
> >>   extern struct bios_config rombios_config;
> >>   extern struct bios_config seabios_config;
> >> +extern struct bios_config ovmf32_config;
> >> +extern struct bios_config ovmf64_config;
> >>      
> > Can you confirm that you need an OVMF which matches the OS bit-width you
> > are installing. i..e that there is no support for booting a 32 bit EFI
> > OS (or bootloader, shell, whatever it is called) on a 64 bit OVMF?
> >
> >    
> 
> I didn't test this case, really, but I would think OVMF-64 / OS-32 could 
> possibly work.
> You are suggesting if this is the case we should just ship the 64-bit 
> emulation?

That would be preferable if possible. I thought this didn't work though
(but I may have misunderstood or misremembered something).

Ian.



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