| Subject | Re: [PATCH v5 21/23] KVM: arm64: GICv4.1: Reload VLPI configuration on distributor enable/disable | From | Zenghui Yu <> | Date | Wed, 18 Mar 2020 11:17:57 +0800 |
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On 2020/3/5 4:33, Marc Zyngier wrote: > Each time a Group-enable bit gets flipped, the state of these bits > needs to be forwarded to the hardware. This is a pretty heavy > handed operation, requiring all vcpus to reload their GICv4 > configuration. It is thus implemented as a new request type.
[note to myself] ... and the status are forwarded to HW by programming VGrp{0,1}En fields of GICR_VPENDBASER when vPEs are made resident next time.
> > Of course, we only support Group-1 for now... > > Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Thanks
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