Re: [RFC V2 PATCH 9/12] swiotlb: Add bounce buffer remap address setting function

[Tianyu Lan]

On 4/14/2021 2:43 PM, Christoph Hellwig wrote:
> On Tue, Apr 13, 2021 at 11:22:14AM -0400, Tianyu Lan wrote:
> > From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>
> >
> > For Hyper-V isolation VM with AMD SEV SNP, the bounce buffer(shared memory)
> > needs to be accessed via extra address space(e.g address above bit39).
> > Hyper-V code may remap extra address space outside of swiotlb. swiotlb_bounce()
> > needs to use remap virtual address to copy data from/to bounce buffer. Add
> > new interface swiotlb_set_bounce_remap() to do that.
>
> I have no way to review what this actually doing when you only Cc me
> on a single patch.  Please make sure everyone is Cced on the whole
> series to enable proper review.

Sure. I will resend all patches. Thanks for reminder.