Re: [PATCH v4 0/6] KVM s390x PCI fixes

[Christian Borntraeger <borntraeger@linux.ibm.com>]

Am 22.07.26 um 19:06 schrieb Farhan Ali:
> 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
> ---------
> 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 | 102 +++++++++++++++++++++++++++++++++++---------
>   arch/s390/kvm/pci.h |   2 +
>   2 files changed, 84 insertions(+), 20 deletions(-)
> 

I would take this series and do small fixups where necessary. Just tell
me if the change for patch 6 is fine. Or provide a v5.

I suggest to add cc stable to all patches.