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| author | Marc Zyngier | 2017-10-27 16:28:49 +0200 |
|---|---|---|
| committer | Christoffer Dall | 2017-11-10 09:43:22 +0100 |
| commit | df9ba95993b9d59e077aa4613f7a4edd20a4064c (patch) | |
| tree | 8713bc9daf8417cd984eea21872094fee01a8102 /virt/kvm/arm/vgic/vgic.h | |
| parent | KVM: arm/arm64: GICv4: Add doorbell interrupt handling (diff) | |
| download | kernel-qcow2-linux-df9ba95993b9d59e077aa4613f7a4edd20a4064c.tar.gz kernel-qcow2-linux-df9ba95993b9d59e077aa4613f7a4edd20a4064c.tar.xz kernel-qcow2-linux-df9ba95993b9d59e077aa4613f7a4edd20a4064c.zip | |
KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source
The doorbell interrupt is only useful if the vcpu is blocked on WFI.
In all other cases, recieving a doorbell interrupt is just a waste
of cycles.
So let's only enable the doorbell if a vcpu is getting blocked,
and disable it when it is unblocked. This is very similar to
what we're doing for the background timer.
Reviewed-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 <christoffer.dall@linaro.org>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic.h')
0 files changed, 0 insertions, 0 deletions