Addressing a few more goofs that Zenghui was kind enough to point out. Clearly all of the bugs have been found and addressed at this point. v2: https://lore.kernel.org/kvmarm/20240213093250.3960069-1-oliver.upton@xxxxxxxxx/ v3: https://lore.kernel.org/kvmarm/20240216184153.2714504-1-oliver.upton@xxxxxxxxx/ v3 -> v4: - Actually walk the LPI INTID range in vgic_copy_lpi_list() (Zenghui) - Ensure xa_lock is taken w/ IRQs disabled, even after purging usage of the lpi_list_lock (Zenghui) - Document the lock ordering (Marc) Oliver Upton (10): KVM: arm64: vgic: Store LPIs in an xarray KVM: arm64: vgic: Use xarray to find LPI in vgic_get_lpi() KVM: arm64: vgic-v3: Iterate the xarray to find pending LPIs KVM: arm64: vgic-its: Walk the LPI xarray in vgic_copy_lpi_list() KVM: arm64: vgic: Get rid of the LPI linked-list KVM: arm64: vgic: Use atomics to count LPIs KVM: arm64: vgic: Free LPI vgic_irq structs in an RCU-safe manner KVM: arm64: vgic: Rely on RCU protection in vgic_get_lpi() KVM: arm64: vgic: Ensure the irq refcount is nonzero when taking a ref KVM: arm64: vgic: Don't acquire the lpi_list_lock in vgic_put_irq() arch/arm64/kvm/vgic/vgic-debug.c | 2 +- arch/arm64/kvm/vgic/vgic-init.c | 4 ++- arch/arm64/kvm/vgic/vgic-its.c | 55 +++++++++++++++++++---------- arch/arm64/kvm/vgic/vgic-v3.c | 3 +- arch/arm64/kvm/vgic/vgic.c | 60 +++++++++++--------------------- arch/arm64/kvm/vgic/vgic.h | 15 +++++--- include/kvm/arm_vgic.h | 9 ++--- 7 files changed, 79 insertions(+), 69 deletions(-) base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d -- 2.44.0.rc0.258.g7320e95886-goog
