Re: Patch "s390/pci: Support mmap() of PCI resources except for ISM devices" has been added to the 6.14-stable tree

On Mon, 2025-04-14 at 06:43 -0400, Sasha Levin wrote:

This is a note to let you know that I've just added the patch titled

s390/pci: Support mmap() of PCI resources except for ISM devices

to the 6.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: s390-pci-support-mmap-of-pci-resources-except-for-is.patch and it can be found in the queue-6.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

Hi Sasha,

Including this in stable is fine but if you do please also pick up commit 41a0926e82f4 ("s390/pci: Fix s390_mmio_read/write syscall page fault handling") otherwise the mmap() with vfio-pci won't work on systems that rely on the MMIO syscalls but would already work on those that have the newer memory I/O feature. Meaning once you have the mmap() PCI resource suppot the cited commit becomes a relevant fix.

Thanks, Niklas