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....@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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