s390 architecture · Supported

Maintainers

• M Heiko Carstens <hca@linux.ibm.com>
• M Vasily Gorbik <gor@linux.ibm.com>
• M Alexander Gordeev <agordeev@linux.ibm.com>
• R Christian Borntraeger <borntraeger@linux.ibm.com>
• R Sven Schnelle <svens@linux.ibm.com>

Paths

• F Documentation/driver-api/s390-drivers.rst
• F Documentation/arch/s390/
• F arch/s390/
• F drivers/s390/
• F drivers/watchdog/diag288_wdt.c

Last 30 days

Active reviewers (last 30 days)

• David Hildenbrand <david@kernel.org>
  1 attestation (1 Suggested-by) · last on 2026-06-08
• Magnus Lindholm <linmag7@gmail.com>
  1 attestation (1 Acked-by) · last on 2026-06-08
• Greg Ungerer <gerg@linux-m68k.org>
  1 attestation (1 Acked-by) · last on 2026-06-08
• Gregory Price <gourry@gourry.net>
  1 attestation (1 Reviewed-by) · last on 2026-06-08

Recent patches

Most-recent 30 patches in this subsystem on virtualization (capped at 30), ordered by date desc.

• COLD15d [PATCH v1] s390/virtio_ccw: Also suppress -EINVAL on device detach
  2026-06-12 · William Bezenah <hidden>
• COOLING9d REVIEWED: 3 (3M) [PATCH v10 14/37] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-06-08 · "Michael S. Tsirkin" <mst@redhat.com>
• COLD30d REVIEWED: 3 (3M) [PATCH v9 14/37] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-29 · "Michael S. Tsirkin" <mst@redhat.com>
• COLD21d [PATCH 09/11] treewide: Convert custom kernel_param_ops .get callbacks to seq_buf via cocci
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD21d [PATCH 04/11] treewide: Convert struct kernel_param_ops initializers to DEFINE_KERNEL_PARAM_OPS
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD30d REVIEWED: 3 (3M) [PATCH v8 14/37] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-20 · "Michael S. Tsirkin" <mst@redhat.com>
• COLD47d REVIEWED: 2 (2M) [PATCH v7 11/31] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-12 · "Michael S. Tsirkin" <mst@redhat.com>
• COLD50d REVIEWED: 2 (2M) [PATCH resend v6 08/30] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-11 · "Michael S. Tsirkin" <mst@redhat.com>
• DORMANTno replies REVIEWED: 2 (2M) [PATCH v6 15/30] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-11 · "Michael S. Tsirkin" <mst@redhat.com>
• COLD51d REVIEWED: 2 (2M) [PATCH v6 08/30] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-05-11 · "Michael S. Tsirkin" <mst@redhat.com>
• STALE65d REVIEWED: 2 (2M) [PATCH RFC v4 12/22] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-04-26 · "Michael S. Tsirkin" <mst@redhat.com>
• STALE66d [PATCH RFC v3 10/19] mm: remove arch vma_alloc_zeroed_movable_folio overrides
  2026-04-21 · "Michael S. Tsirkin" <mst@redhat.com>
• STALE71d Re: [PATCH RFC v2 11/18] mm: skip zeroing in vma_alloc_zeroed_movable_folio for pre-zeroed pages
  2026-04-21 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE88d [PATCH 10/12] s390/ap: use generic driver_override infrastructure
  2026-03-24 · Danilo Krummrich <dakr@kernel.org>
• STALE88d [PATCH 09/12] s390/cio: use generic driver_override infrastructure
  2026-03-24 · Danilo Krummrich <dakr@kernel.org>
• STALE89d [PATCH 6/8] KVM: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE89d [PATCH 3/8] net: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE215d LANDED: 2 (2M) [PATCH v2 18/22] vfio/ccw: Convert to get_region_info_caps
  2025-11-07 · Jason Gunthorpe <jgg@nvidia.com>
• STALE215d LANDED: 2 (2M) [PATCH v2 12/22] vfio/ccw: Provide a get_region_info op
  2025-11-07 · Jason Gunthorpe <jgg@nvidia.com>
• STALE236d [PATCH 18/22] vfio/ccw: Convert to get_region_info_caps
  2025-10-23 · Jason Gunthorpe <jgg@nvidia.com>
• STALE236d [PATCH 12/22] vfio/ccw: Provide a get_region_info op
  2025-10-23 · Jason Gunthorpe <jgg@nvidia.com>
• STALE253d [PATCH] mm: Make INVALID_PHYS_ADDR a generic macro
  2025-10-21 · Anshuman Khandual <hidden>
• STALE265d REVIEWED: 13 (11M) [PATCH v2 03/37] s390/Kconfig: drop superfluous "select SPARSEMEM_VMEMMAP"
  2025-09-01 · David Hildenbrand <hidden>
• STALE303d REVIEWED: 11 (11M) [PATCH v1 03/36] s390/Kconfig: drop superfluous "select SPARSEMEM_VMEMMAP"
  2025-08-27 · David Hildenbrand <hidden>
• STALE265d [PATCH RFC 03/35] s390/Kconfig: drop superfluous "select SPARSEMEM_VMEMMAP"
  2025-08-21 · David Hildenbrand <hidden>
• STALE317d [PATCH] mm/numa: Rename memory_add_physaddr_to_nid to memory_get_phys_to_nid
  2025-08-18 · <hidden>
• STALE348d [PATCH 1/2] crypto: engine: remove request batching support
  2025-07-11 · Ovidiu Panait <hidden>
• STALE446d LANDED [PATCH v1] s390/virtio_ccw: don't allocate/assign airqs for non-existing queues
  2025-04-02 · David Hildenbrand <hidden>
• STALE492d [PATCH v2 05/13] cpumask: deprecate cpumask_next_wrap()
  2025-01-28 · Yury Norov <yury.norov@gmail.com>
• STALE532d [PATCH 05/14] cpumask: deprecate cpumask_next_wrap()
  2024-12-28 · Yury Norov <yury.norov@gmail.com>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE89d [PATCH 3/8] net: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE89d [PATCH 6/8] KVM: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>