KVM: arm64: vgic-v3: Enable trapping of Group-0 system registers

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In order to be able to trap Group-0 GICv3 system registers, we need to
set ICH_HCR_EL2.TALL0 begore entering the guest. This is conditionnaly
done after having restored the guest's state, and cleared on exit.

Tested-by: Alexander Graf <agraf@suse.de>
Acked-by: David Daney <david.daney@cavium.com>
Acked-by: Christoffer Dall <cdall@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>

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Marc Zyngier 2017-06-09 12:49:45 +01:00

parent eab0b2dc4f

commit abf55766f7

2 changed files with 5 additions and 1 deletions

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include/linux/irqchip/arm-gic-v3.h

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