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

[Tianyu Lan]

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>