Hello Anthony,
See my response below.
Jason
On 6/27/2017 12:36 PM, Anthony PERARD wrote:
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 ?
I'm trying to get SMM functionality in OVMF, this only works with q35. I
have since been informed that Xen may not support SMM mode in the
firmware anyway and that adding it could be a significant effort.
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.
I think the interrupt thing is support for SMI handlers in the firmware?
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.
I would like to work towards full support of SMM in OVMF while on Xen
and may well do some development in that area. I would certainly welcome
a discussion and collaboration.
Regards,
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