On 2021/3/25 2:19, Marc Zyngier wrote:

On Mon, 22 Mar 2021 14:01:52 +0800, Shenming Lu wrote:

quoted

In GICv4.1, migration has been supported except for (directly-injected)
VLPI. And GICv4.1 Spec explicitly gives a way to get the VLPI's pending
state (which was crucially missing in GICv4.0). So we make VLPI migration
capable on GICv4.1 in this series.

In order to support VLPI migration, we need to save and restore all
required configuration information and pending states of VLPIs. But
in fact, the configuration information of VLPIs has already been saved
(or will be reallocated on the dst host...) in vgic(kvm) migration.
So we only have to migrate the pending states of VLPIs specially.

[...]

Applied to next, thanks!

Thanks a lot again for all the comments and suggestions. :-)

Shenming

[1/6] irqchip/gic-v3-its: Add a cache invalidation right after vPE unmapping
      commit: 301beaf19739cb6e640ed44e630e7da993f0ecc8
[2/6] irqchip/gic-v3-its: Drop the setting of PTZ altogether
      commit: c21bc068cdbe5613d3319ae171c3f2eb9f321352
[3/6] KVM: arm64: GICv4.1: Add function to get VLPI state
      commit: 80317fe4a65375fae668672a1398a0fb73eb9023
[4/6] KVM: arm64: GICv4.1: Try to save VLPI state in save_pending_tables
      commit: f66b7b151e00427168409f8c1857970e926b1e27
[5/6] KVM: arm64: GICv4.1: Restore VLPI pending state to physical side
      commit: 12df7429213abbfa9632ab7db94f629ec309a58b
[6/6] KVM: arm64: GICv4.1: Give a chance to save VLPI state
      commit: 8082d50f4817ff6a7e08f4b7e9b18e5f8bfa290d

Cheers,

	M.

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