Re: [PATCH v7 08/22] coco: arm64: s390: powerpc: Mark secure guests with CC_ATTR_GUEST_MEM_ENCRYPT

[Catalin Marinas]

On Wed, Jul 01, 2026 at 11:19:12AM +0530, Aneesh Kumar K.V (Arm) wrote:
> arm64 Realms, powerpc secure guests and s390 protected virtualization
> guests currently report CC_ATTR_MEM_ENCRYPT, but not
> CC_ATTR_GUEST_MEM_ENCRYPT.
> 
> These environments are all secure guest configurations. Their
> force_dma_unencrypted() implementations also treat the same secure guest
> state as requiring unencrypted DMA. Report CC_ATTR_GUEST_MEM_ENCRYPT for
> the same condition so generic confidential-computing code can distinguish
> guest memory encryption from host memory encryption instead of relying only
> on CC_ATTR_MEM_ENCRYPT.
> 
> Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@xxxxxxxxxx>

For arm64:

Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>