Re: [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted... | linux-arm-kernel

[PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 01/43] KVM: VMX: Don't unblock vCPU w/ Posted IRQ if IRQs are disabled in guest · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 02/43] KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 02/43] KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 02/43] KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 03/43] KVM: s390: Ensure kvm_arch_no_poll() is read once when blocking vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 04/43] KVM: Force PPC to define its own rcuwait object · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 05/43] KVM: Update halt-polling stats if and only if halt-polling was attempted · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 05/43] KVM: Update halt-polling stats if and only if halt-polling was attempted · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 06/43] KVM: Refactor and document halt-polling stats update helper · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 06/43] KVM: Refactor and document halt-polling stats update helper · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 07/43] KVM: Reconcile discrepancies in halt-polling stats · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 07/43] KVM: Reconcile discrepancies in halt-polling stats · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 08/43] KVM: s390: Clear valid_wakeup in kvm_s390_handle_wait(), not in arch hook · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 09/43] KVM: Drop obsolete kvm_arch_vcpu_block_finish() · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 09/43] KVM: Drop obsolete kvm_arch_vcpu_block_finish() · Anup Patel <anup@brainfault.org> · 2021-10-22
[PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Marc Zyngier <maz@kernel.org> · 2021-10-26
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-26
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-30
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Marc Zyngier <maz@kernel.org> · 2021-11-30
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-30
[PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-10-27
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-11-28
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
[PATCH v2 12/43] KVM: x86: Tweak halt emulation helper names to free up kvm_vcpu_halt() · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 12/43] KVM: x86: Tweak halt emulation helper names to free up kvm_vcpu_halt() · Maxim Levitsky <hidden> · 2021-10-27
Re: [PATCH v2 12/43] KVM: x86: Tweak halt emulation helper names to free up kvm_vcpu_halt() · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 13/43] KVM: Rename kvm_vcpu_block() => kvm_vcpu_halt() · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 13/43] KVM: Rename kvm_vcpu_block() => kvm_vcpu_halt() · Anup Patel <anup@brainfault.org> · 2021-10-22
[PATCH v2 14/43] KVM: Split out a kvm_vcpu_block() helper from kvm_vcpu_halt() · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 15/43] KVM: stats: Add stat to detect if vcpu is currently blocking · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 16/43] KVM: Don't redo ktime_get() when calculating halt-polling stop/deadline · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 16/43] KVM: Don't redo ktime_get() when calculating halt-polling stop/deadline · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 16/43] KVM: Don't redo ktime_get() when calculating halt-polling stop/deadline · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 17/43] KVM: x86: Directly block (instead of "halting") UNINITIALIZED vCPUs · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 17/43] KVM: x86: Directly block (instead of "halting") UNINITIALIZED vCPUs · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 18/43] KVM: x86: Invoke kvm_vcpu_block() directly for non-HALTED wait states · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 18/43] KVM: x86: Invoke kvm_vcpu_block() directly for non-HALTED wait states · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 19/43] KVM: Add helpers to wake/query blocking vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 19/43] KVM: Add helpers to wake/query blocking vCPU · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 19/43] KVM: Add helpers to wake/query blocking vCPU · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 20/43] KVM: VMX: Skip Posted Interrupt updates if APICv is hard disabled · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 20/43] KVM: VMX: Skip Posted Interrupt updates if APICv is hard disabled · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 20/43] KVM: VMX: Skip Posted Interrupt updates if APICv is hard disabled · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 21/43] KVM: VMX: Clean up PI pre/post-block WARNs · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 21/43] KVM: VMX: Clean up PI pre/post-block WARNs · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 21/43] KVM: VMX: Clean up PI pre/post-block WARNs · Sean Christopherson <seanjc@google.com> · 2021-10-28
[PATCH v2 22/43] KVM: VMX: Drop unnecessary PI logic to handle impossible conditions · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 22/43] KVM: VMX: Drop unnecessary PI logic to handle impossible conditions · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 22/43] KVM: VMX: Drop unnecessary PI logic to handle impossible conditions · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 23/43] KVM: VMX: Use boolean returns for Posted Interrupt "test" helpers · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 23/43] KVM: VMX: Use boolean returns for Posted Interrupt "test" helpers · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 25/43] KVM: VMX: Save/restore IRQs (instead of CLI/STI) during PI pre/post block · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 25/43] KVM: VMX: Save/restore IRQs (instead of CLI/STI) during PI pre/post block · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Sean Christopherson <seanjc@google.com> · 2021-10-28
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Maxim Levitsky <hidden> · 2021-10-31
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Sean Christopherson <seanjc@google.com> · 2021-11-01
[PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Sean Christopherson <seanjc@google.com> · 2021-10-28
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Sean Christopherson <seanjc@google.com> · 2021-10-28
Re: [PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 29/43] KVM: VMX: Handle PI wakeup shenanigans during vcpu_put/load · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 29/43] KVM: VMX: Handle PI wakeup shenanigans during vcpu_put/load · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 30/43] KVM: Drop unused kvm_vcpu.pre_pcpu field · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 30/43] KVM: Drop unused kvm_vcpu.pre_pcpu field · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 31/43] KVM: Move x86 VMX's posted interrupt list_head to vcpu_vmx · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 31/43] KVM: Move x86 VMX's posted interrupt list_head to vcpu_vmx · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 32/43] KVM: VMX: Move preemption timer <=> hrtimer dance to common x86 · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 32/43] KVM: VMX: Move preemption timer <=> hrtimer dance to common x86 · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 33/43] KVM: x86: Unexport LAPIC's switch_to_{hv,sw}_timer() helpers · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 33/43] KVM: x86: Unexport LAPIC's switch_to_{hv,sw}_timer() helpers · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 34/43] KVM: x86: Remove defunct pre_block/post_block kvm_x86_ops hooks · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 34/43] KVM: x86: Remove defunct pre_block/post_block kvm_x86_ops hooks · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-28
[PATCH v2 36/43] KVM: SVM: Don't bother checking for "running" AVIC when kicking for IPIs · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 36/43] KVM: SVM: Don't bother checking for "running" AVIC when kicking for IPIs · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Sean Christopherson <seanjc@google.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Sean Christopherson <seanjc@google.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 38/43] KVM: Drop defunct kvm_arch_vcpu_(un)blocking() hooks · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 38/43] KVM: Drop defunct kvm_arch_vcpu_(un)blocking() hooks · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 41/43] KVM: VMX: Pass desired vector instead of bool for triggering posted IRQ · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 41/43] KVM: VMX: Pass desired vector instead of bool for triggering posted IRQ · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 42/43] KVM: VMX: Fold fallback path into triggering posted IRQ helper · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 42/43] KVM: VMX: Fold fallback path into triggering posted IRQ helper · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup · Maxim Levitsky <hidden> · 2021-10-31
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Christian Borntraeger <hidden> · 2021-10-26
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-26
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Christian Borntraeger <hidden> · 2021-10-26

Re: [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup

From: Paolo Bonzini <pbonzini@redhat.com>
Date: 2021-10-25 14:16:39
Also in: kvm, kvm-riscv, kvmarm, linux-mips, linux-riscv, lkml

On 09/10/21 04:12, Sean Christopherson wrote:

When waking vCPUs in the posted interrupt wakeup handling, do exactly
that and no more.  There is no need to kick the vCPU as the wakeup
handler just need to get the vCPU task running, and if it's in the guest
then it's definitely running.

And more important, the transition from blocking to running will have 
gone through sync_pir_to_irr, thus checking ON and manually moving the 
vector from PIR to RVI.

Paolo


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