Re: [PATCH 10/12] Drivers: hv: Don't remap addresses that are above shared_gpa_boundary

[Tianyu Lan]

On 10/21/2022 1:57 AM, Michael Kelley wrote:
> With the vTOM bit now treated as a protection flag and not part of
> the physical address, avoid remapping physical addresses with vTOM set
> since technically such addresses aren't valid.  Use ioremap_cache()
> instead of memremap() to ensure that the mapping provides decrypted
> access, which will correctly set the vTOM bit as a protection flag.
>
> While this change is not required for correctness with the current
> implementation of memremap(), for general code hygiene it's better to
> not depend on the mapping functions doing something reasonable with
> a physical address that is out-of-range.
>
> While here, fix typos in two error messages.
>
> Signed-off-by: Michael Kelley<mikelley@xxxxxxxxxxxxx>
> ---

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