Re: [Xen-devel] q35 support in Xen

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

On Tue, Jun 27, 2017 at 10:19:26AM +0100, Wei Liu wrote:
> CC Anthony and Stefano
> 
> On Mon, Jun 26, 2017 at 01:55:56PM -0400, Jason Dickens wrote:
> > I would like to inquire about q35 support in Xen? As far as I have been able
> > to tell, this has not been done? In the Xen version that I've been working
> > with (4.4), libxl_dm overrides any "-machine" argument I try to pass to QEMU
> > with "-machine xenfv". (it appears this still existing in the last version)
> > 
> > In my case, I need q35 support because certain OVMF functionality requires
> > the q35 architecture.

By curiosity, which functionality of OVMF ?

> > Can someone help with:
> > 
> > 1. Is there a newer version of Xen that does support q35 emulation?

No.

> > 2. Has there been a determination of what has to change for q35? e.g., just
> > ACPI?

There is also some simple change in QEMU, about interrupt I think, and
we need to teach hvmloader to recognize the new platform and do some
initialisation.

> > 3. Are there plans to support this?

I don't think there is. I did work on it in the past but it was not a
priority. But patchs are always welcomed.

Regards,

-- 
Anthony PERARD

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