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authorChristoffer Dall <christoffer.dall@linaro.org>2015-11-24 16:23:05 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2015-11-24 18:07:40 +0100
commit0e3dfda91d9fe8e2c4d0b5d21434b173a241eeaf (patch)
tree0f976f6b44f4ded62834c26579d9265406531a8f /virt/kvm/vfio.h
parent7e16aa81f9f6a7cfe2287b788a7d62abc2880185 (diff)
downloadlinux-0e3dfda91d9fe8e2c4d0b5d21434b173a241eeaf.tar.bz2
KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active
We were incorrectly removing the active state from the physical distributor on the timer interrupt when the timer output level was deasserted. We shouldn't be doing this without considering the virtual interrupt's active state, because the architecture requires that when an LR has the HW bit set and the pending or active bits set, then the physical interrupt must also have the corresponding bits set. This addresses an issue where we have been observing an inconsistency between the LR state and the physical distributor state where the LR state was active and the physical distributor was not active, which shouldn't happen. Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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