Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-04 04:06:26 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

KVM: arm64: vgic-its: Walk LPI xarray in vgic_its_invall()

Browse Source 
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>
This commit is contained in:
Oliver Upton 2024-04-22 20:01:42 +00:00 committed by Marc Zyngier
parent 720f73b750
commit c64115c80f
1 changed files with 6 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/arm64/kvm/vgic/vgic-its.c
View File

@ -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;
struct vgic_dist *dist = &kvm->arch.vgic;
struct vgic_irq *irq;
unsigned long intid;
irq_count = vgic_copy_lpi_list(kvm, vcpu, &intids);
if (irq_count < 0)
return irq_count;
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);