[v3] KVM s390x PCI fixes

[PATCH v3 0/4] KVM s390x PCI fixes

Farhan Ali posted 4 patches 4 days, 7 hours ago

Diff against v1 v2 v4 v5 v6
Download series mbox

There is a newer version of this series

arch/s390/kvm/pci.c | 82 ++++++++++++++++++++++++++++++++++-----------
arch/s390/kvm/pci.h |  2 ++
2 files changed, 65 insertions(+), 19 deletions(-)

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[PATCH v3 0/4] KVM s390x PCI fixes

Posted by Farhan Ali 4 days, 7 hours ago

Hi,

This series attempts to fix some the pre-existing issues[1] found by sashiko.
In v1 of the series, sashiko correctly pointed out some issues with the fix
for AISB/AIBV spanning multiple pages and resource leaks that can happen
over multiple ioctl calls for the same device. Fixing these will require 
some more rework and will be address later.  

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

Thanks
Farhan

ChangeLog
---------
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 (4):
  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

 arch/s390/kvm/pci.c | 82 ++++++++++++++++++++++++++++++++++-----------
 arch/s390/kvm/pci.h |  2 ++
 2 files changed, 65 insertions(+), 19 deletions(-)

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2.43.0