Re: [PATCH 04/12] Drivers: hv: Explicitly request decrypted in vmap_pfn() calls

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 10/21/2022 1:57 AM, Michael Kelley wrote:
In preparation for a subsequent patch, update vmap_pfn() calls to
explicitly request that the mapping be for decrypted access to
the memory.  There's no change in functionality since the PFNs
passed to vmap_pfn() are above the shared_gpa_boundary, implicitly
producing a decrypted mapping. But explicitly requesting decrypted
allows the code to work before and after a subsequent patch
that will cause vmap_pfn() to mask the PFNs to being below the
shared_gpa_boundary. While another subsesquent patch removes the
vmap_pfn() calls entirely, this temporary tweak avoids the need
for a large patch that makes all the changes at once.

Signed-off-by: Michael Kelley<mikelley@xxxxxxxxxxxxx>
---

Reviewed-by: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>



[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux