Re: [PATCH] iommu/vt-d: Allocate reserved region for ISA with correct permission

[Joerg Roedel]

On Sun, Dec 15, 2019 at 01:39:31PM +0800, Lu Baolu wrote:
> Hi,
> 
> On 12/13/19 1:36 PM, Jerry Snitselaar wrote:
> > Currently the reserved region for ISA is allocated with no
> > permissions. If a dma domain is being used, mapping this region will
> > fail. Set the permissions to DMA_PTE_READ|DMA_PTE_WRITE.
> > 
> > Cc: Joerg Roedel <jroedel@xxxxxxx>
> > Cc: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> > Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
> > Cc: stable@xxxxxxxxxxxxxxx # v5.3+
> > Fixes: d850c2ee5fe2 ("iommu/vt-d: Expose ISA direct mapping region via iommu_get_resv_regions")
> > Signed-off-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx>
> 
> This fix looks reasonable to me.
> 
> Acked-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

Applied for v5.5, thanks.