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Re: [RFC XEN PATCH 2/6] vpci: accept BAR writes if dom0 is PVH
- To: Huang Rui <ray.huang@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 21 Mar 2023 13:27:21 +0100
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- Cc: "Deucher, Alexander" <Alexander.Deucher@xxxxxxx>, "Koenig, Christian" <Christian.Koenig@xxxxxxx>, "Hildebrand, Stewart" <Stewart.Hildebrand@xxxxxxx>, Xenia Ragiadakou <burzalodowa@xxxxxxxxx>, "Huang, Honglei1" <Honglei1.Huang@xxxxxxx>, "Zhang, Julia" <Julia.Zhang@xxxxxxx>, "Chen, Jiqian" <Jiqian.Chen@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 21 Mar 2023 12:27:32 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 21.03.2023 12:49, Huang Rui wrote:
> Thanks, but we found if dom0 is PV domain, the passthrough device will
> access this function to write the real bar.
Can you please be quite a bit more detailed about this? The specific code
paths taken (in upstream software) to result in such would of of interest.
Jan
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