Re: [PATCH 2/5] iommu/vt-d: Remove WO permissions on second-level paging entries

[Lu Baolu]

Hi Joerg,

On 3/18/21 5:12 PM, Joerg Roedel wrote:
> Hi,
>
> On Mon, Mar 08, 2021 at 11:47:46AM -0800, Raj, Ashok wrote:
> > That is the primary motivation, given that we have moved to 1st level for
> > general IOVA, first level doesn't have a WO mapping. I didn't know enough
> > about the history to determine if a WO without a READ is very useful. I
> > guess the ZLR was invented to support those cases without a READ in PCIe. I
>
> Okay, please update the commit message and re-send. I guess these
> patches are 5.13 stuff. In that case, Baolu can include them into his
> pull request later this cycle.

Okay! It works for me.

Best regards,
baolu