KVM: arm64: GICv2: Decouple GICH_HCR programming from LRs being loaded

Browse source

Not programming GICH_HCR while no LRs are populated is a bit
of an issue, as we otherwise don't see any maintenance interrupt
when the guest interacts with the LRs.

Decouple the two and always program the control register, even when
we don't have to touch the LRs.

This is very similar to what we are already doing for GICv3.

Tested-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Mark Brown <broonie@kernel.org>
Link: https://msgid.link/20251120172540.2267180-17-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>

...

This commit is contained in:

Marc Zyngier 2025-11-20 17:25:06 +00:00 • committed by Oliver Upton

parent 5ceb3dac80

commit a00c88ac1f

1 changed files with 14 additions and 14 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

28

arch/arm64/kvm/vgic/vgic-v2.c

View file