Re: [PATCH v9 23/27] cxl: add region flag for precluding a device memory to be used for dax

On Mon, 30 Dec 2024 21:44:41 +0000
alejandro.lucero-palau@amd.com wrote:

From: Alejandro Lucero <redacted>

By definition a type2 cxl device will use the host managed memory for
specific functionality, therefore it should not be available to other
uses. However, a dax interface could be just good enough in some cases.

Add a flag to a cxl region for specifically state to not create a dax
device. Allow a Type2 driver to set that flag at region creation time.

Signed-off-by: Alejandro Lucero <redacted>
Reviewed-by: Zhi Wang <zhiw@nvidia.com>

To me this seems a little premature as it will always be set by known
usecases, but meh, if someone else wants it it is indeed harmless.

Reviewed-by: Jonathan Cameron <redacted>