Re: [PATCH v5 2/9] xen/arm/static-shmem: Static-shmem should be direct-mapped for direct-mapped domains

["Orzel, Michal" <michal.orzel@amd.com>]

On 06/02/2025 02:08, Stefano Stabellini wrote:
> From: Henry Wang <xin.wang2@amd.com>
> 
> Currently, users are allowed to map static shared memory in a
> non-direct-mapped way for direct-mapped domains. This can lead to
> clashing of guest memory spaces. Also, the current extended region
> finding logic only removes the host physical addresses of the
> static shared memory areas for direct-mapped domains, which may be
> inconsistent with the guest memory map if users map the static
> shared memory in a non-direct-mapped way. This will lead to incorrect
> extended region calculation results.
> 
> To make things easier, add restriction that static shared memory
> should also be direct-mapped for direct-mapped domains. Check the
> host physical address to be matched with guest physical address when
> parsing the device tree. Document this restriction in the doc.
> 
> Signed-off-by: Henry Wang <xin.wang2@amd.com>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
> Acked-by: Michal Orzel <michal.orzel@amd.com>
This patch has already been committed (see 0a0f30c1b55e) and later on fixed (see 988f1c7e1f40).

DO NOT COMMIT.

~Michal