[PATCH 0/6] KVM: PPC: Book3S HV interrupt fixes

Michael Ellerman patch-notifications at ellerman.id.au
Tue May 24 20:51:45 AEST 2022


On Thu, 3 Mar 2022 15:33:09 +1000, Nicholas Piggin wrote:
> This series fixes up a bunch of little interrupt issues which were found
> by inspection haven't seem to have caused big problems but possibly
> could or could cause the occasional latency spike from a temporarily lost
> interrupt.
> 
> The big thing is the xive context change. Currently we run an L2 with
> its L1's xive OS context pushed. I'm proposing that we instead treat
> that as an escalation similar to cede.
> 
> [...]

Patches 2-6 applied to powerpc/topic/ppc-kvm.

[2/6] KVM: PPC: Book3S HV P9: Inject pending xive interrupts at guest entry
      https://git.kernel.org/powerpc/c/026728dc5d41f830e8194fe01e432dd4eb9b3d9a
[3/6] KVM: PPC: Book3S HV P9: Move cede logic out of XIVE escalation rearming
      https://git.kernel.org/powerpc/c/ad5ace91c55e7bd16813617f67bcb7619d51a295
[4/6] KVM: PPC: Book3S HV P9: Split !nested case out from guest entry
      https://git.kernel.org/powerpc/c/42b4a2b347b09e7ee4c86f7121e3b45214b63e69
[5/6] KVM: PPC: Book3S HV Nested: L2 must not run with L1 xive context
      https://git.kernel.org/powerpc/c/11681b79b1ab52e7625844d7ce52c4d5201a43b2
[6/6] KVM: PPC: Book3S HV Nested: L2 LPCR should inherit L1 LPES setting
      https://git.kernel.org/powerpc/c/2852ebfa10afdcefff35ec72c8da97141df9845c

cheers


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