Re: [PATCH v4 3/6] x86/tdx: Allow MMIO from userspace
From: Kirill A. Shutemov
Date: Thu Aug 22 2024 - 03:23:40 EST
On Wed, Aug 21, 2024 at 04:24:35PM +0200, Alexey Gladkov wrote:
> From: "Alexey Gladkov (Intel)" <legion@xxxxxxxxxx>
>
> The MMIO emulation is only allowed for kernel space code. It is carried
> out through a special API, which uses only certain instructions.
>
> This does not allow userspace to work with virtual devices.
>
> Allow userspace to use the same instructions as kernel space to access
> MMIO. Additional checks have been added previously.
>
> Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Signed-off-by: Alexey Gladkov (Intel) <legion@xxxxxxxxxx>
So, you've picked up Thomas' Reviwed-by, but lost mine? :P
--
Kiryl Shutsemau / Kirill A. Shutemov