Messages in this thread | | | Date | Wed, 14 Apr 2021 08:43:58 +0200 | From | Christoph Hellwig <> | Subject | Re: [RFC V2 PATCH 9/12] swiotlb: Add bounce buffer remap address setting function |
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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.
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