On 29.08.2019 11:49, Roger Pau Monne wrote:
> This partially reverts commit
> 854a49a7486a02edae5b3e53617bace526e9c1b1 by re-adding the logic that
> propagates changes to the domain physmap done by p2m_pt_set_entry into
> the iommu page tables. Without this logic changes to the guest physmap
> are not propagated to the iommu, leaving stale iommu entries that can
> leak data, or failing to add new entries.
>
> Note that this commit doesn't re-introduce iommu flags to the cpu page
> table entries, since the logic to add/remove entries to the iommu page
> tables is based on the p2m type and the mfn.
>
> Fixes: 854a49a7486a02 ('x86/mm: Clean IOMMU flags from p2m-pt code')
> Signed-off-by: Roger Pau Monné <[email protected]>
> ---
> Cc: Alexandru Stefan ISAILA <[email protected]>
> ---
> Changes since v1:
> - Remove the share-pt branch, there's no sharing on AMD hardware.
> ---
Reviewed-by: Alexandru Isaila <[email protected]>
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