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[PATCH 0/3][4.16?] VT-d: misc (regression) fixes
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 9 Nov 2021 15:55:38 +0100
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- Cc: Kevin Tian <kevin.tian@xxxxxxxxx>, Paul Durrant <paul@xxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxx>
- Delivery-date: Tue, 09 Nov 2021 14:55:50 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
1: per-domain IOMMU bitmap needs to have dynamic size
2: fix reduced page table levels support when sharing tables
3: don't needlessly engage the untrusted-MSI workaround
As to 4.16 considerations: Only patch 1 addresses a regression
introduced after 4.15, the others are older. Patch 3 additionally
only addresses an inefficiency; the code we have is correct from
a functional pov.
Jan
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