[PATCH v5 0/6] KVM s390x PCI fixes

[Farhan Ali <alifm@linux.ibm.com>]

Hi,

This series attempts to fix some the pre-existing issues[1] found by 
sashiko.

[1] https://lore.kernel.org/all/20260624063447.85DF51F000E9@smtp.kernel.org/

Thanks
Farhan

ChangeLog
---------
v4: https://lore.kernel.org/all/20260722170621.1686-1-alifm@linux.ibm.com/
v4 -> v5
   - Fix off by one error (patch 6).
   - Add check for current->mm in account_mem() (patch 2).
   - Fix commit message as suggested by Matt (patch 3, 4, 5).

v3: https://lore.kernel.org/all/20260720175819.1723-1-alifm@linux.ibm.com/
v3 -> v4
   - Add validation checks for AISB/AIBV spanning more than a page.
   - Reject multiple ioctl call for the same device, if adapter interrupt
   forwarding is already enabled for the device.
   - Rebase on 7.2-rc4.

v2: https://lore.kernel.org/all/20260716175241.1039-1-alifm@linux.ibm.com/
v2 -> v3
   - Remove overwriting guest FIB since we don't use it for
   re-issue (patch 4).

v1: https://lore.kernel.org/all/20260713172600.1284-1-alifm@linux.ibm.com/
v1 -> v2
   - Drop fix handling AISB/AIBV spanning multiple pages.
   - Fix memory accounting functions for the case when interrupt forwarding
   is enabled by one process but disabled by a different process (patch 1).

Farhan Ali (6):
  KVM: s390: pci: Reject adapter interrupt forwarding if already enabled
  KVM: s390: pci: Fix memory accounting for pinned/unpinned pages
  KVM: s390: pci: Fix missing error codes and memory unaccounting
  KVM: s390: pci: Fix NULL dereference on AIBV allocation failure
  KVM: s390: pci: Fix resource leak on IRQ registration failure
  KVM: s390: pci: Validate AIBV and AISB before pinning guest pages

 arch/s390/kvm/pci.c | 108 +++++++++++++++++++++++++++++++++++---------
 arch/s390/kvm/pci.h |   2 +
 2 files changed, 89 insertions(+), 21 deletions(-)

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2.43.0