Re: [PATCH v3 2/2] virtio: replace arch_has_restricted_virtio_memory_access()

[Boris Petkov <bp@xxxxxxxxx>]

On May 4, 2022 3:57:03 PM UTC, Juergen Gross <jgross@xxxxxxxx> wrote:
>Instead of using arch_has_restricted_virtio_memory_access() together
>with CONFIG_ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS, replace those
>with platform_has() and a new platform feature
>PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS.
>
>Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
>---
>V2:
>- move setting of PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS in SEV case
>  to sev_setup_arch().
>V3:
>- remove Hyper-V chunk (Michael Kelley)
>- remove include virtio_config.h from mem_encrypt.c (Oleksandr Tyshchenko)
>- add comment for PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS (Oleksandr Tyshchenko)
>---
> arch/s390/Kconfig                |  1 -
> arch/s390/mm/init.c              | 13 +++----------
> arch/x86/Kconfig                 |  1 -
> arch/x86/mm/mem_encrypt.c        |  7 -------
> arch/x86/mm/mem_encrypt_amd.c    |  4 ++++
> drivers/virtio/Kconfig           |  6 ------
> drivers/virtio/virtio.c          |  5 ++---
> include/linux/platform-feature.h |  6 +++++-
> include/linux/virtio_config.h    |  9 ---------
> 9 files changed, 14 insertions(+), 38 deletions(-)

Acked-by: Borislav Petkov <bp@xxxxxxx>
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