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Re: [PATCH v5 01/11] xen/arm: xc_domain_ioport_permission(..) not supported on ARM.
- To: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- From: Ian Jackson <iwj@xxxxxxxxxxxxxx>
- Date: Wed, 13 Oct 2021 13:02:22 +0100
- Cc: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>, Rahul Singh <Rahul.Singh@xxxxxxx>, "xen-devel\@lists.xenproject.org" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Andre Przywara <Andre.Przywara@xxxxxxx>, Wei Liu <wl@xxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
- Delivery-date: Wed, 13 Oct 2021 12:02:35 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Roger Pau Monné writes ("Re: [PATCH v5 01/11] xen/arm:
xc_domain_ioport_permission(..) not supported on ARM."):
> IMO it would be good to modify the commit message so it covers the
> fact that the emulated host bridge on Arm does not advertise IO port
> support, so the guest is capable of realizing IO BARs are not
> supported.
Yes.
> Otherwise it seems like the toolstack is ignoring a failure which
> could cause a device to malfunction when passed though (which is still
> the case, but the guest will be able to notice).
Quite.
Thanks,
Ian.
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