Messages in this thread | | | Subject | Re: [RFC V2 PATCH 9/12] swiotlb: Add bounce buffer remap address setting function | From | Tianyu Lan <> | Date | Wed, 14 Apr 2021 22:12:12 +0800 |
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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@microsoft.com> >> >> 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.
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