Re: [PATCH v2] s390/cmf: Fix virtual vs physical address confusion

[Heiko Carstens <hca@linux.ibm.com>]

On Mon, Sep 21, 2026 at 03:16:48PM +0200, Peter Oberparleiter wrote:
> The measurement block address is an absolute address. Define the
> associated schib_config and schib fields as dma64_t to enable automatic
> detection of incorrect assignments. Also add the missing virt_to_dma64()
> translation.
> 
> Without this fix, a wrong address will be used by firmware when storing
> extended format channel measurement data on kernels built with
> CONFIG_RANDOMIZE_IDENTITY_BASE=y.
> 
> Fixes: 14edd0d73bfe ("s390/cmf: fix virtual vs physical address confusion")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
> ---
> v2:
>   - Change type of mba field from u64 to dma64_t
>   - Add fixes and cc-stable tags
> 
>  drivers/s390/cio/cio.h | 5 +++--
>  drivers/s390/cio/cmf.c | 2 +-
>  2 files changed, 4 insertions(+), 3 deletions(-)

Applied, thanks!