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| author | Zenghui Yu <yuzenghui@huawei.com> | 2024-08-17 18:15:41 +0800 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-08-19 17:04:36 +0000 |
| commit | 2240a50e6294214de791729e9dcba6880fa7e44e (patch) | |
| tree | a69e0365c0e1a733de41b733896b443843f99e0f /arch | |
| parent | 9eb18136af9fe4dd688724070f2bfba271bd1542 (diff) | |
| download | linux-stable-2240a50e6294214de791729e9dcba6880fa7e44e.tar.gz linux-stable-2240a50e6294214de791729e9dcba6880fa7e44e.tar.bz2 linux-stable-2240a50e6294214de791729e9dcba6880fa7e44e.zip | |
KVM: arm64: vgic-debug: Don't put unmarked LPIs
If there were LPIs being mapped behind our back (i.e., between .start() and
.stop()), we would put them at iter_unmark_lpis() without checking if they
were actually *marked*, which is obviously not good.
Switch to use the xa_for_each_marked() iterator to fix it.
Cc: stable@vger.kernel.org
Fixes: 85d3ccc8b75b ("KVM: arm64: vgic-debug: Use an xarray mark for debug iterator")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240817101541.1664-1-yuzenghui@huawei.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic-debug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-debug.c b/arch/arm64/kvm/vgic/vgic-debug.c index bc74d06398ef..e1397ab2072a 100644 --- a/arch/arm64/kvm/vgic/vgic-debug.c +++ b/arch/arm64/kvm/vgic/vgic-debug.c @@ -85,7 +85,7 @@ static void iter_unmark_lpis(struct kvm *kvm) struct vgic_irq *irq; unsigned long intid; - xa_for_each(&dist->lpi_xa, intid, irq) { + xa_for_each_marked(&dist->lpi_xa, intid, irq, LPI_XA_MARK_DEBUG_ITER) { xa_clear_mark(&dist->lpi_xa, intid, LPI_XA_MARK_DEBUG_ITER); vgic_put_irq(kvm, irq); } |