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Re: [Xen-devel] [PATCH v2] x86/p2m: fix non-translated handling of iommu mappings
- To: Roger Pau Monne <roger.pau@xxxxxxxxxx>
- From: Jan Beulich <JBeulich@xxxxxxxx>
- Date: Tue, 23 Jul 2019 12:47:03 +0000
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- Cc: George Dunlap <george.dunlap@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Paul Durrant <Paul.Durrant@xxxxxxxxxx>, WeiLiu <wl@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Delivery-date: Tue, 23 Jul 2019 12:50:25 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHVQVRariXxqV/J3UKg/S7dHXhtWKbYJsIA
- Thread-topic: [PATCH v2] x86/p2m: fix non-translated handling of iommu mappings
On 23.07.2019 14:43, Roger Pau Monne wrote:
> The current usage of need_iommu_pt_sync in p2m for non-translated
> guests is wrong because it doesn't correctly handle a relaxed PV
> hardware domain, that has need_sync set to false, but still need
> entries to be added from calls to {set/clear}_identity_p2m_entry.
>
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> Reviewed-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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