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Re: [PATCH v2 0/3] x86/IOMMU: enabled / intremap handling
- To: Ian Jackson <iwj@xxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 2 Nov 2021 11:17:47 +0100
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- Cc: Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Paul Durrant <paul@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 02 Nov 2021 10:18:04 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 21.10.2021 11:57, Jan Beulich wrote:
> In the course of reading the response to v1 (patch 1 only) I realized
> that not only that patch needs further adjustment, but that also
> further changes are needed (and there's likely yet more amiss).
>
> 1: x86/IOMMU: mark IOMMU / intremap not in use when ACPI tables are missing
> 2: x86/APIC: avoid iommu_supports_x2apic() on error path
> 3: AMD/IOMMU: iommu_enable vs iommu_intremap
Ian, while we further discuss / refine patch 3, the first two have the
needed R-b, but will now need you release-ack aiui.
Andrew, did you perhaps have a chance to actually try v2 of patch 1? It
works for me when suitably configuring the BIOS on my Skylake, so I
wouldn't feel uncertain in committing without a Tested-by, but it would
feel even better if I had one.
Thanks, Jan
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