KVM: arm64: vgic-its: Treat the collection target address as a vcpu_id

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Since our emulated ITS advertises GITS_TYPER.PTA=0, the target
address associated to a collection is a PE number and not
an address. So far, so good. However, the PE number is what userspace
has provided given us (aka the vcpu_id), and not the internal vcpu
index.

Make sure we consistently retrieve the vcpu by ID rather than
by index, adding a helper that deals with most of the cases.

We also get rid of the pointless (and bogus) comparisons to
online_vcpus, which don't really make sense.

Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230927090911.3355209-3-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Marc Zyngier 2023-09-27 10:09:02 +01:00 • committed by Oliver Upton

parent 9a0a75d3cc

commit d455d366c4

1 changed files with 27 additions and 22 deletions

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arch/arm64/kvm/vgic/vgic-its.c

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