Re: [PATCH 1/2] iommu/vt-d: Check capability before disabling protected memory

[Joerg Roedel]

On Wed, Mar 20, 2019 at 09:58:33AM +0800, Lu Baolu wrote:
> The spec states in 10.4.16 that the Protected Memory Enable
> Register should be treated as read-only for implementations
> not supporting protected memory regions (PLMR and PHMR fields
> reported as Clear in the Capability register).
> 
> Cc: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> Cc: mark gross <mgross@xxxxxxxxx>
> Suggested-by: Ashok Raj <ashok.raj@xxxxxxxxx>
> Fixes: f8bab73515ca5 ("intel-iommu: PMEN support")
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> ---
>  drivers/iommu/intel-iommu.c | 3 +++
>  1 file changed, 3 insertions(+)

Applied both, thanks.