diff options
| author | Oliver Upton <oliver.upton@linux.dev> | 2024-04-22 23:01:42 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2024-04-25 15:19:55 +0300 |
| commit | c64115c80fc8abacfb89c36d650b7021ebb3d739 (patch) | |
| tree | aa49450fde9a47fe3adfb09d04bade63ccc2213b /arch | |
| parent | 720f73b750e66ca753c56c29801009c28bb484ac (diff) | |
| download | linux-c64115c80fc8abacfb89c36d650b7021ebb3d739.tar.xz | |
KVM: arm64: vgic-its: Walk LPI xarray in vgic_its_invall()
The new LPI xarray makes it possible to walk the VM's LPIs without
holding a lock, meaning that vgic_copy_lpi_list() is no longer
necessary. Prepare for the deletion by walking the LPI xarray directly
in vgic_its_invall().
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240422200158.2606761-4-oliver.upton@linux.dev
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic-its.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c index bdb7718b923a..07706c5e996b 100644 --- a/arch/arm64/kvm/vgic/vgic-its.c +++ b/arch/arm64/kvm/vgic/vgic-its.c @@ -1365,23 +1365,19 @@ static int vgic_its_cmd_handle_inv(struct kvm *kvm, struct vgic_its *its, int vgic_its_invall(struct kvm_vcpu *vcpu) { struct kvm *kvm = vcpu->kvm; - int irq_count, i = 0; - u32 *intids; - - irq_count = vgic_copy_lpi_list(kvm, vcpu, &intids); - if (irq_count < 0) - return irq_count; + struct vgic_dist *dist = &kvm->arch.vgic; + struct vgic_irq *irq; + unsigned long intid; - for (i = 0; i < irq_count; i++) { - struct vgic_irq *irq = vgic_get_irq(kvm, NULL, intids[i]); + xa_for_each(&dist->lpi_xa, intid, irq) { + irq = vgic_get_irq(kvm, NULL, intid); if (!irq) continue; + update_lpi_config(kvm, irq, vcpu, false); vgic_put_irq(kvm, irq); } - kfree(intids); - if (vcpu->arch.vgic_cpu.vgic_v3.its_vpe.its_vm) its_invall_vpe(&vcpu->arch.vgic_cpu.vgic_v3.its_vpe); |