Re: [GIT PULL] KVM: s390: Features and Fixes for 7.3

On Fri, Aug 14, 2026 at 9:51 AM Christian Borntraeger
<[email protected]> wrote:
>
> Paolo,
>
> large chunk of s390 fixes and feature without patches as reply due to
> the large number. Series is on top of v7.2-rc2 but I merged
> kvms390/master to pick up additional fixes that came too late for 7.2.
> Of course also other patches/fixes directly on top. This automatically
> contains all the previous s390 fixes for 7.2, but this will reduce merge
> conflict potentials, so I see it rather on the plus side.
> I made the pull request statistics on top of rc7.
>
> sashiko reviews for the patches
> 1. Fixes for vfio-ap
> https://sashiko.dev/#/patchset/20260812200240.818004-1-akrowiak%40linux.ibm.com  without patch9
> https://sashiko.dev/#/patchset/20260806173435.105044-1-akrowiak%40linux.ibm.com
> 2. Fixes from Claudio
> https://sashiko.dev/#/patchset/20260812104436.109741-1-imbrenda%40linux.ibm.com without patches 4 and 9
> 3. vsie Fixes from Christoph
> https://sashiko.dev/#/patchset/20260807-vsie-cleanup-202607-v1-0-b18659b55e3d%40linux.ibm.com
> 4. diag 9c tracing from Ciunas
> https://sashiko.dev/#/patchset/20260724103959.14861-1-ciunas%40linux.ibm.com
> 5. enable CONTEXT_ANALYSIS for cio and virtio from Heiko
> https://sashiko.dev/#/patchset/20260806153849.2622576-1-hca%40linux.ibm.com
> 6. move KVM code to prepare for additional arm64 support
> https://sashiko.dev/#/patchset/20260812153631.3376090-1-seiden%40linux.ibm.com (patches12-21 only)
> 7. AI triggered fixes all over by me
> https://sashiko.dev/#/patchset/20260811153738.206885-1-borntraeger%40linux.ibm.com
> https://sashiko.dev/#/patchset/20260805110455.7200-1-borntraeger%40linux.ibm.com
>
> --
> 2.53.0
>
> The following changes since commit feadc5e84dcb53422a437556c35af9efd9826fd5:
>
>   KVM: s390: Fix cleanup in kvm_s390_pv_create_cpu() (2026-08-03 17:09:46 +0200)
>
> are available in the Git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git  tags/kvm-s390-next-7.3-1
>
> for you to fetch changes up to dd6f4ef6f8a37412909ad787c837332fb070159c:
>
>   s390/vfio-ap: Fix NULL deref in status_show() during queue probe (2026-08-13 16:04:33 +0200)
>
> ----------------------------------------------------------------
> KVM: s390: Features and Fixes for 7.3
>
> - merged kvms390/master to pick up additional fixes that came too late
>   for 7.2
> - Fixes for vfio-ap
> - Fixes for the gmap rework
> - Fixes for vsie
> - AI triggered fixes all over
> - diag9c tracing
> - code move preparation for the additional arm64 support
> - enable CONTEXT_ANALYSIS
> - update to vfio maintainer file location

Pulled, thanks.

Paolo

> ----------------------------------------------------------------
> Anthony Krowiak (9):
>       s390/vfio-ap: fix stale pqap_hook pointer on error in vfio_ap_mdev_set_kvm()
>       s390/vfio-ap: Fix stale do_remove flag across iterations in vfio_ap_mdev_cfg_remove
>       s390/vfio-ap: Fix dereference matrix_mdev->kvm without checking for NULL
>       s390/vfio-ap: Fix missing lock required to access list of ap_matrix_mdev objects
>       s390/vfio-ap: Fix required lock not held during update of ap_matrix_mdev object
>       s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove
>       s390/vfio-ap: fix potential use of uninitialized apm_filtered bitmap
>       s390/vfio-ap: Fix hot-unplug skipped when last AP adapter or domain removed
>       s390/vfio-ap: Fix NULL deref in status_show() during queue probe
>
> Christian Borntraeger (15):
>       KVM: s390: move some facilities from FACILITIES_KVM_CPUMODEL to FACILITIES_KVM
>       KVM: s390: Remove user triggerable WARN_ON
>       KVM: s390: Zero initialize data structures for inject_pfault_token
>       KVM: s390: Zero initialize irq in reinject_machine_check
>       KVM: s390: Fix memory leak in guest debug handling
>       KVM: s390: Fix old_data leak in guest debug error path
>       KVM: s390: Take srcu when importing watchpoint data
>       KVM: s390: Free guest debug data on vcpu destroy
>       KVM: s390: Fix length check __import_wp_info()
>       KVM: s390: Fix memory corruption by not reinjecting CK machine checks
>       KVM: s390: keyop: use mmu_lock to read gmap->asce
>       KVM: s390: vsie: zero stale crypto bits
>       KVM: s390: pv: Fix rc/rrc offset for PVM_DUMP
>       KVM: s390: Restore sigset on error path
>       Merge remote-tracking branch 'kvms390/master' into 'kvms390/next'
>
> Christoph Schlameuss (6):
>       KVM: s390: Remove double 64bscao feature check
>       KVM: s390: vsie: Remove duplicate assertion
>       KVM: s390: vsie: Convert shift to phys_to_pfn()
>       KVM: s390: vsie: Assert mcck_info offset in vsie_page
>       KVM: s390: vsie: Assert crycb alignment in vsie_page
>       KVM: s390: vsie: Create constant SCB_ALIGNMENT_SHIFT
>
> Ciunas Bennett (2):
>       KVM: s390: Refactor __diag_time_slice_end_directed for single exit point
>       KVM: s390: Add tracepoint for DIAG 9c directed yield operations
>
> Claudio Imbrenda (7):
>       KVM: s390: Properly handle NULL pointer in dat_cond_set_storage_key()
>       KVM: s390: Use srcu in kvm_arch_vcpu_unlocked_ioctl()
>       KVM: s390: Fix get_all_floating_irqs()
>       KVM: s390: Fix pgste_get_trylock_multiple()
>       KVM: s390: Fix IRQ injection with SIGP Stop and Store Status
>       KVM: s390: Fix kvm_s390_clear_pv_state()
>       KVM: s390: Fix potential tiny kernel stack leak
>
> Heiko Carstens (4):
>       MAINTAINERS: Update s390 specific vfio sections
>       s390/vfio_ccw: Add __must_hold() attribute to vfio_ccw_sch_quiesce()
>       s390/cio: Enable CONTEXT_ANALYSIS
>       s390/virtio: Enable CONTEXT_ANALYSIS
>
> Steffen Eiden (10):
>       KVM: s390: Extract gmap tracing to a separate header
>       KVM: s390: Prepare include guards for a new location
>       KVM: s390: Rename kvm-s390.{c,h} to s390.{c,h}
>       KVM: s390: Move kvm_host definitions to kvm_host_s390
>       KVM: s390: Move s390 kvm code into a subdirectory
>       KVM: s390: Move PGM code definitions to asm/kvm_host.h
>       KVM: s390: Prepare gmap for a second KVM implementation
>       KVM: s390: gmap: Make storage keys optional
>       KVM: s390: gmap: Make CMMA optional
>       KVM: s390: gmap: Make prefix handling optional
>
>  MAINTAINERS                                 |   8 +-
>  arch/s390/include/asm/kvm_host.h            | 723 +--------------------------
>  arch/s390/include/asm/kvm_host_s390.h       | 729 ++++++++++++++++++++++++++++
>  arch/s390/include/asm/kvm_host_s390_types.h | 349 +++++++++++++
>  arch/s390/include/asm/kvm_host_types.h      | 347 +------------
>  arch/s390/include/asm/nmi.h                 |   3 +
>  arch/s390/kernel/nmi.c                      |   5 +-
>  arch/s390/kvm/Makefile                      |  11 +-
>  arch/s390/kvm/gmap/Makefile                 |   5 +
>  arch/s390/kvm/{ => gmap}/dat.c              |  17 +-
>  arch/s390/kvm/{ => gmap}/dat.h              |  21 +-
>  arch/s390/kvm/{ => gmap}/faultin.c          |   3 +-
>  arch/s390/kvm/{ => gmap}/faultin.h          |   6 +-
>  arch/s390/kvm/{ => gmap}/gmap.c             |  19 +-
>  arch/s390/kvm/{ => gmap}/gmap.h             |  25 +-
>  arch/s390/kvm/gmap/kvm_mmu.c                | 133 +++++
>  arch/s390/kvm/gmap/kvm_mmu.h                |  18 +
>  arch/s390/kvm/gmap/trace_gmap.h             |  47 ++
>  arch/s390/kvm/s390/Makefile                 |  14 +
>  arch/s390/kvm/{ => s390}/diag.c             |  21 +-
>  arch/s390/kvm/{ => s390}/gaccess.c          |   2 +-
>  arch/s390/kvm/{ => s390}/gaccess.h          |   2 +-
>  arch/s390/kvm/{ => s390}/guestdbg.c         |  11 +-
>  arch/s390/kvm/{ => s390}/intercept.c        |   2 +-
>  arch/s390/kvm/{ => s390}/interrupt.c        | 109 +++--
>  arch/s390/kvm/{ => s390}/pci.c              |   2 +-
>  arch/s390/kvm/{ => s390}/pci.h              |   0
>  arch/s390/kvm/{ => s390}/priv.c             |   2 +-
>  arch/s390/kvm/{ => s390}/pv.c               |   6 +-
>  arch/s390/kvm/{kvm-s390.c => s390/s390.c}   | 159 ++----
>  arch/s390/kvm/{kvm-s390.h => s390/s390.h}   |  10 +-
>  arch/s390/kvm/{ => s390}/sigp.c             |   2 +-
>  arch/s390/kvm/{ => s390}/trace-s390.h       |   0
>  arch/s390/kvm/{ => s390}/trace.h            |  40 +-
>  arch/s390/kvm/{ => s390}/vsie.c             |  22 +-
>  arch/s390/tools/gen_facilities.c            |  14 +-
>  drivers/s390/cio/Makefile                   |   2 +
>  drivers/s390/cio/vfio_ccw_drv.c             |   1 +
>  drivers/s390/cio/vfio_ccw_private.h         |   3 +-
>  drivers/s390/crypto/vfio_ap_ops.c           | 203 +++++---
>  drivers/s390/virtio/Makefile                |   2 +
>  41 files changed, 1703 insertions(+), 1395 deletions(-)
>  create mode 100644 arch/s390/include/asm/kvm_host_s390.h
>  create mode 100644 arch/s390/include/asm/kvm_host_s390_types.h
>  create mode 100644 arch/s390/kvm/gmap/Makefile
>  rename arch/s390/kvm/{ => gmap}/dat.c (99%)
>  rename arch/s390/kvm/{ => gmap}/dat.h (98%)
>  rename arch/s390/kvm/{ => gmap}/faultin.c (98%)
>  rename arch/s390/kvm/{ => gmap}/faultin.h (96%)
>  rename arch/s390/kvm/{ => gmap}/gmap.c (99%)
>  rename arch/s390/kvm/{ => gmap}/gmap.h (96%)
>  create mode 100644 arch/s390/kvm/gmap/kvm_mmu.c
>  create mode 100644 arch/s390/kvm/gmap/kvm_mmu.h
>  create mode 100644 arch/s390/kvm/gmap/trace_gmap.h
>  create mode 100644 arch/s390/kvm/s390/Makefile
>  rename arch/s390/kvm/{ => s390}/diag.c (96%)
>  rename arch/s390/kvm/{ => s390}/gaccess.c (99%)
>  rename arch/s390/kvm/{ => s390}/gaccess.h (99%)
>  rename arch/s390/kvm/{ => s390}/guestdbg.c (98%)
>  rename arch/s390/kvm/{ => s390}/intercept.c (99%)
>  rename arch/s390/kvm/{ => s390}/interrupt.c (98%)
>  rename arch/s390/kvm/{ => s390}/pci.c (99%)
>  rename arch/s390/kvm/{ => s390}/pci.h (100%)
>  rename arch/s390/kvm/{ => s390}/priv.c (99%)
>  rename arch/s390/kvm/{ => s390}/pv.c (99%)
>  rename arch/s390/kvm/{kvm-s390.c => s390/s390.c} (97%)
>  rename arch/s390/kvm/{kvm-s390.h => s390/s390.h} (98%)
>  rename arch/s390/kvm/{ => s390}/sigp.c (99%)
>  rename arch/s390/kvm/{ => s390}/trace-s390.h (100%)
>  rename arch/s390/kvm/{ => s390}/trace.h (95%)
>  rename arch/s390/kvm/{ => s390}/vsie.c (98%)
>