Re: [Xen-devel] [PATCH v2] xen/iommu: fix usage of shared EPT/IOMMU page tables on PVH guests

[Tim Deegan <tim@xxxxxxx>]

At 12:33 +0100 on 27 Feb (1425036812), Roger Pau Monne wrote:
> iommu_share_p2m_table should not prevent PVH guests from using a shared page
> table between the IOMMU and EPT. Clean the code by removing the asserts in
> the vendor specific implementations (amd_iommu_share_p2m, iommu_set_pgd),
> and moving the hap_enabled assert to the caller (iommu_share_p2m_table).
> 
> Also fix another incorrect usage of is_hvm_domain usage in
> arch_iommu_populate_page_table. This has not given problems so far because
> all the pages in PVH guests are of type PGT_writable_page.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Reviewed-by: Tim Deegan <tim@xxxxxxx>


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