Gavin Shan 5c929e49d3 KVM: arm64: Resolve vLPI by host IRQ in vgic_v4_unset_forwarding() ... JIRA: https://issues.redhat.com/browse/RHEL-93666 The virtual mapping and "GSI" routing of a particular vLPI is subject to change in response to the guest / userspace. This can be pretty annoying to deal with when KVM needs to track the physical state that's managed for vLPI direct injection. Make vgic_v4_unset_forwarding() resilient by using the host IRQ to resolve the vgic IRQ. Since this uses the LPI xarray directly, finding the ITS by doorbell address + grabbing it's its_lock is no longer necessary. Note that matching the right ITS / ITE is already handled in vgic_v4_set_forwarding(), and unless there's a bug in KVM's VGIC ITS emulation the virtual mapping that should remain stable for the lifetime of the vLPI mapping. Tested-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20250523194722.4066715-4-oliver.upton@linux.dev Signed-off-by: Marc Zyngier <maz@kernel.org> (cherry picked from commit 05b9405f2fa1848e984f231708fa1e5d385e4d27) Signed-off-by: Gavin Shan <gshan@redhat.com>		2025-06-25 09:59:21 +10:00
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arm_arch_timer.h	KVM: arm64: Remove unused return value from kvm_reset_vcpu()	2024-01-02 02:31:22 -05:00
arm_hypercalls.h	KVM: arm64: Introduce support for userspace SMCCC filtering	2023-07-04 09:11:24 -04:00
arm_pmu.h	KVM: arm64: PMU: Reload when resetting	2025-06-25 09:59:20 +10:00
arm_psci.h	KVM: arm64: Get rid of vCPU-scoped feature bitmap	2024-01-02 02:31:22 -05:00
arm_vgic.h	KVM: arm64: Resolve vLPI by host IRQ in vgic_v4_unset_forwarding()	2025-06-25 09:59:21 +10:00
iodev.h	KVM: destruct kvm_io_device while unregistering it from kvm_io_bus	2023-12-01 14:51:08 +01:00