Re: [PATCH v2 00/10] Add IO page table replacement support

From: Nicolin Chen
Date: Thu Feb 09 2023 - 11:13:32 EST


On Thu, Feb 09, 2023 at 02:50:39AM +0000, Tian, Kevin wrote:
> External email: Use caution opening links or attachments
>
>
> > From: Nicolin Chen <nicolinc@xxxxxxxxxx>
> > Sent: Wednesday, February 8, 2023 5:18 AM
> >
> > QEMU with this feature should have the vIOMMU maintain a cache of the
> > guest io page table addresses and assign a unique IOAS to each unique
> > guest page table.
> >
>
> I still didn't see a clear reply why above is required. Please elaborate.

Hmm..this piece was directly copied from Jason's inputs before I
sent v1. And I thought he explained in the previous version. I
can drop it in v3 if that makes you happy.

Thanks
Nic