[GIT PULL] KVM/arm64 fixes for 7.2, take #1

[Paolo Bonzini]

On Fri, Jun 26, 2026 at 3:35 PM Marc Zyngier <maz at kernel.org> wrote:
>
> Paolo,
>
> As predicted, here's another largeish set of fixes for KVM/arm64. A
> bunch of them are fairly benign (the PSTATE.IL stuff), but some are
> pretty annoying (vgic, MOPS) and are stable material.
>
> On the bright side, Fuad has volunteered to be an official reviewer.
> We really need people to engage with the reviewing process instead of
> simply dumping patches on us, as me and Oliver really can't be
> stretched much further. So many thanks Fuad for offering to help.

Indeed, thanks very much!

> I expect to be back next week with a similar delivery, as my Inbox
> keeps filling with this stuff...

Pulled, thanks. Sorry for the delay (though it was known in advance).

Paolo

> Please pull,
>
>         M.
>
> The following changes since commit 1ee27dacbe5dc4def481794d899d67b0d4570094:
>
>   Merge branch kvm-arm64/nv-mmu-7.2 into kvmarm-master/next (2026-06-12 09:29:34 +0100)
>
> are available in the Git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git tags/kvmarm-fixes-7.2-1
>
> for you to fetch changes up to d098bb75d14fde2f12155f1a95ec0168160867ce:
>
>   KVM: arm64: account pKVM reclaim against the VM mm (2026-06-22 10:48:08 +0100)
>
> ----------------------------------------------------------------
> KVM/arm64 fixes for 7.2, take #1
>
> - Fix an accounting buglet when reclaiming pages from a protected
>   guest
>
> - Fix a bunch of architectural compliance issues when injecting a
>   synthesised exception, most of which were missing the PSTATE.IL bit
>   indicating a 32bit-wide instruction
>
> - Another set of fixes addressing issues with translation of VNCR_EL2,
>   including corner cases where the guest point that register at a RO
>   page...
>
> - Don't warn when trapping accesses to ZCR_EL2 from an L2 guest, as
>   that's not unexpected at all
>
> - Address a bunch of races with LPI migration vs LPIs being disabled
>
> - Fix a total howler of a bug combining FEAT_MOPS and NV, resulting in
>   exception returning in the wrong place...
>
> - Coerce Fuad Tabba into a reviewer role, and may his Inbox catch
>   fire!
>
> ----------------------------------------------------------------
> Bradley Morgan (1):
>       KVM: arm64: account pKVM reclaim against the VM mm
>
> Fuad Tabba (11):
>       KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions
>       KVM: arm64: Sync SPSR_EL1 when injecting an exception into a pVM
>       KVM: arm64: nv: Fix PSTATE construction on illegal exception return
>       KVM: arm64: Add Fuad Tabba as a reviewer
>       KVM: arm64: Set ESR_ELx.IL for injected undefined exceptions at EL2
>       KVM: arm64: Unconditionally set IL for injected undefined exceptions
>       KVM: arm64: Unconditionally set IL for injected abort exceptions
>       KVM: arm64: Set IL for injected FPAC exceptions during ERET emulation
>       KVM: arm64: Set IL for emulated SError injection
>       KVM: arm64: Set IL for nested SError injection
>       KVM: arm64: Set IL in fake ESR for pKVM memory sharing exit
>
> Hyunwoo Kim (1):
>       KVM: arm64: vgic: Check the interrupt is still ours before migrating it
>
> Marc Zyngier (1):
>       KVM: arm64: vgic: Handle race between interrupt affinity change and LPI disabling
>
> Oliver Upton (6):
>       KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2
>       KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR
>       KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN
>       KVM: arm64: nv: Re-translate VNCR before injecting abort
>       KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory
>       KVM: arm64: nv: Mark VM as bugged for unexpected VNCR abort
>
> Weiming Shi (1):
>       KVM: arm64: nv: Fix SPSR_EL2 restore in kvm_hyp_handle_mops()
>
>  MAINTAINERS                             |   1 +
>  arch/arm64/include/asm/kvm_nested.h     |   8 ++
>  arch/arm64/kvm/at.c                     |   8 --
>  arch/arm64/kvm/emulate-nested.c         |  37 +++++--
>  arch/arm64/kvm/hyp/include/hyp/switch.h |  11 ++-
>  arch/arm64/kvm/hyp/nvhe/pkvm.c          |   3 +-
>  arch/arm64/kvm/hyp/nvhe/sys_regs.c      |   3 +-
>  arch/arm64/kvm/inject_fault.c           |  18 +---
>  arch/arm64/kvm/nested.c                 | 164 ++++++++++++++++----------------
>  arch/arm64/kvm/pkvm.c                   |   2 +-
>  arch/arm64/kvm/vgic/vgic.c              |  20 ++--
>  11 files changed, 149 insertions(+), 126 deletions(-)
>