From: Sean Christopherson <seanjc@google.com>
To: Marc Zyngier <maz@kernel.org>,
Huacai Chen <chenhuacai@kernel.org>,
Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
Paul Mackerras <paulus@ozlabs.org>,
Anup Patel <anup.patel@wdc.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Atish Patra <atish.patra@wdc.com>,
David Hildenbrand <david@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>,
Joerg Roedel <joro@8bytes.org>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org,
kvm@vger.kernel.org, kvm-ppc@vger.kernel.org,
kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org,
David Matlack <dmatlack@google.com>,
Oliver Upton <oupton@google.com>,
Jing Zhang <jingzhangos@google.com>
Subject: [PATCH v2 38/43] KVM: Drop defunct kvm_arch_vcpu_(un)blocking() hooks
Date: Fri, 8 Oct 2021 19:12:31 -0700 [thread overview]
Message-ID: <20211009021236.4122790-39-seanjc@google.com> (raw)
In-Reply-To: <20211009021236.4122790-1-seanjc@google.com>
Remove kvm_arch_vcpu_(un)blocking() now that all implementations are nops.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
arch/arm64/kvm/arm.c | 10 ----------
arch/mips/include/asm/kvm_host.h | 2 --
arch/powerpc/include/asm/kvm_host.h | 2 --
arch/s390/include/asm/kvm_host.h | 2 --
arch/x86/include/asm/kvm-x86-ops.h | 2 --
arch/x86/include/asm/kvm_host.h | 13 -------------
include/linux/kvm_host.h | 2 --
virt/kvm/kvm_main.c | 4 ----
8 files changed, 37 deletions(-)
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 9ff0e85a9f16..444d6f5a980a 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -357,16 +357,6 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
return kvm_timer_is_pending(vcpu);
}
-void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
-{
-
-}
-
-void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
-{
-
-}
-
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
struct kvm_s2_mmu *mmu;
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 72b90d45a46e..28110f71089b 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -895,8 +895,6 @@ static inline void kvm_arch_free_memslot(struct kvm *kvm,
struct kvm_memory_slot *slot) {}
static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
-static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB
int kvm_arch_flush_remote_tlb(struct kvm *kvm);
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 4a195c161592..0dfee6866541 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -863,7 +863,5 @@ static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
static inline void kvm_arch_exit(void) {}
-static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#endif /* __POWERPC_KVM_HOST_H__ */
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index a22c9266ea05..25ed4ec66f4a 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -1007,7 +1007,5 @@ static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
struct kvm_memory_slot *slot) {}
-static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#endif
diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h
index c2b007171abd..f2c38acdcad6 100644
--- a/arch/x86/include/asm/kvm-x86-ops.h
+++ b/arch/x86/include/asm/kvm-x86-ops.h
@@ -96,8 +96,6 @@ KVM_X86_OP(handle_exit_irqoff)
KVM_X86_OP_NULL(request_immediate_exit)
KVM_X86_OP(sched_in)
KVM_X86_OP_NULL(update_cpu_dirty_logging)
-KVM_X86_OP_NULL(vcpu_blocking)
-KVM_X86_OP_NULL(vcpu_unblocking)
KVM_X86_OP_NULL(update_pi_irte)
KVM_X86_OP_NULL(start_assignment)
KVM_X86_OP_NULL(apicv_post_state_restore)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 76a8dddc1a48..bebd42926321 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1445,9 +1445,6 @@ struct kvm_x86_ops {
const struct kvm_pmu_ops *pmu_ops;
const struct kvm_x86_nested_ops *nested_ops;
- void (*vcpu_blocking)(struct kvm_vcpu *vcpu);
- void (*vcpu_unblocking)(struct kvm_vcpu *vcpu);
-
int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq,
uint32_t guest_irq, bool set);
void (*start_assignment)(struct kvm *kvm);
@@ -1904,16 +1901,6 @@ static inline bool kvm_irq_is_postable(struct kvm_lapic_irq *irq)
irq->delivery_mode == APIC_DM_LOWEST);
}
-static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
-{
- static_call_cond(kvm_x86_vcpu_blocking)(vcpu);
-}
-
-static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
-{
- static_call_cond(kvm_x86_vcpu_unblocking)(vcpu);
-}
-
static inline int kvm_cpu_get_apicid(int mps_cpu)
{
#ifdef CONFIG_X86_LOCAL_APIC
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c5961a361c73..6a84b020daa6 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -966,8 +966,6 @@ void kvm_sigset_deactivate(struct kvm_vcpu *vcpu);
void kvm_vcpu_halt(struct kvm_vcpu *vcpu);
bool kvm_vcpu_block(struct kvm_vcpu *vcpu);
-void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu);
-void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu);
bool kvm_vcpu_wake_up(struct kvm_vcpu *vcpu);
void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
int kvm_vcpu_yield_to(struct kvm_vcpu *target);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c1850b60f38b..96de905e26e4 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3210,8 +3210,6 @@ bool kvm_vcpu_block(struct kvm_vcpu *vcpu)
vcpu->stat.generic.blocking = 1;
- kvm_arch_vcpu_blocking(vcpu);
-
prepare_to_rcuwait(wait);
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
@@ -3224,8 +3222,6 @@ bool kvm_vcpu_block(struct kvm_vcpu *vcpu)
}
finish_rcuwait(wait);
- kvm_arch_vcpu_unblocking(vcpu);
-
vcpu->stat.generic.blocking = 0;
return waited;
--
2.33.0.882.g93a45727a2-goog
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next prev parent reply other threads:[~2021-10-09 2:57 UTC|newest]
Thread overview: 141+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-09 2:11 [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul Sean Christopherson
2021-10-09 2:11 ` [PATCH v2 01/43] KVM: VMX: Don't unblock vCPU w/ Posted IRQ if IRQs are disabled in guest Sean Christopherson
2021-10-09 2:11 ` [PATCH v2 02/43] KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell Sean Christopherson
2021-10-25 13:21 ` Paolo Bonzini
2021-10-27 9:50 ` Maxim Levitsky
2021-10-09 2:11 ` [PATCH v2 03/43] KVM: s390: Ensure kvm_arch_no_poll() is read once when blocking vCPU Sean Christopherson
2021-10-09 2:11 ` [PATCH v2 04/43] KVM: Force PPC to define its own rcuwait object Sean Christopherson
2021-10-09 2:11 ` [PATCH v2 05/43] KVM: Update halt-polling stats if and only if halt-polling was attempted Sean Christopherson
2021-10-27 10:18 ` Maxim Levitsky
2021-10-09 2:11 ` [PATCH v2 06/43] KVM: Refactor and document halt-polling stats update helper Sean Christopherson
2021-10-27 10:56 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 07/43] KVM: Reconcile discrepancies in halt-polling stats Sean Christopherson
2021-10-27 11:29 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 08/43] KVM: s390: Clear valid_wakeup in kvm_s390_handle_wait(), not in arch hook Sean Christopherson
2021-10-09 2:12 ` [PATCH v2 09/43] KVM: Drop obsolete kvm_arch_vcpu_block_finish() Sean Christopherson
2021-10-22 15:02 ` Anup Patel
2021-10-09 2:12 ` [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook Sean Christopherson
2021-10-25 13:31 ` Paolo Bonzini
2021-10-26 15:41 ` Marc Zyngier
2021-10-26 16:12 ` Paolo Bonzini
2021-11-30 11:39 ` Paolo Bonzini
2021-11-30 12:04 ` Marc Zyngier
2021-11-30 16:07 ` Paolo Bonzini
2021-10-09 2:12 ` [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful Sean Christopherson
2021-10-27 13:40 ` Maxim Levitsky
2021-11-28 22:16 ` Maxim Levitsky
2021-11-29 17:25 ` Sean Christopherson
2021-11-29 17:53 ` Paolo Bonzini
2021-11-29 18:55 ` Sean Christopherson
2021-11-29 19:18 ` Paolo Bonzini
2021-11-29 22:53 ` Maxim Levitsky
2021-12-02 0:20 ` Maxim Levitsky
2021-12-02 2:00 ` Sean Christopherson
2021-12-02 10:31 ` Paolo Bonzini
2021-11-29 17:55 ` Paolo Bonzini
2021-11-29 22:55 ` Maxim Levitsky
2021-12-02 10:20 ` Maxim Levitsky
2021-12-02 10:47 ` Maxim Levitsky
2021-12-02 12:02 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 12/43] KVM: x86: Tweak halt emulation helper names to free up kvm_vcpu_halt() Sean Christopherson
2021-10-27 14:10 ` Maxim Levitsky
2021-10-27 14:18 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 13/43] KVM: Rename kvm_vcpu_block() => kvm_vcpu_halt() Sean Christopherson
2021-10-22 15:04 ` Anup Patel
2021-10-09 2:12 ` [PATCH v2 14/43] KVM: Split out a kvm_vcpu_block() helper from kvm_vcpu_halt() Sean Christopherson
2021-10-09 2:12 ` [PATCH v2 15/43] KVM: stats: Add stat to detect if vcpu is currently blocking Sean Christopherson
2021-10-09 2:12 ` [PATCH v2 16/43] KVM: Don't redo ktime_get() when calculating halt-polling stop/deadline Sean Christopherson
2021-10-25 14:26 ` Paolo Bonzini
2021-10-27 14:35 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 17/43] KVM: x86: Directly block (instead of "halting") UNINITIALIZED vCPUs Sean Christopherson
2021-10-27 14:46 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 18/43] KVM: x86: Invoke kvm_vcpu_block() directly for non-HALTED wait states Sean Christopherson
2021-10-27 15:18 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 19/43] KVM: Add helpers to wake/query blocking vCPU Sean Christopherson
2021-10-25 14:06 ` Paolo Bonzini
2021-10-27 19:27 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 20/43] KVM: VMX: Skip Posted Interrupt updates if APICv is hard disabled Sean Christopherson
2021-10-25 13:48 ` Paolo Bonzini
2021-10-28 9:12 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 21/43] KVM: VMX: Clean up PI pre/post-block WARNs Sean Christopherson
2021-10-28 10:20 ` Maxim Levitsky
2021-10-28 15:34 ` Sean Christopherson
2021-10-09 2:12 ` [PATCH v2 22/43] KVM: VMX: Drop unnecessary PI logic to handle impossible conditions Sean Christopherson
2021-10-25 13:53 ` Paolo Bonzini
2021-10-28 14:36 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 23/43] KVM: VMX: Use boolean returns for Posted Interrupt "test" helpers Sean Christopherson
2021-10-28 6:05 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking Sean Christopherson
2021-10-25 14:01 ` Paolo Bonzini
2021-10-27 14:26 ` Sean Christopherson
2021-10-28 10:53 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 25/43] KVM: VMX: Save/restore IRQs (instead of CLI/STI) during PI pre/post block Sean Christopherson
2021-10-28 10:54 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration Sean Christopherson
2021-10-28 10:58 ` Maxim Levitsky
2021-10-28 15:55 ` Sean Christopherson
2021-10-31 22:48 ` Maxim Levitsky
2021-11-01 17:41 ` Sean Christopherson
2021-10-09 2:12 ` [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop Sean Christopherson
2021-10-28 11:28 ` Maxim Levitsky
2021-10-28 16:09 ` Maxim Levitsky
2021-10-28 16:12 ` Sean Christopherson
2021-10-31 22:51 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV Sean Christopherson
2021-10-28 12:53 ` Maxim Levitsky
2021-10-28 17:19 ` Sean Christopherson
2021-10-31 22:52 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 29/43] KVM: VMX: Handle PI wakeup shenanigans during vcpu_put/load Sean Christopherson
2021-10-28 15:14 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 30/43] KVM: Drop unused kvm_vcpu.pre_pcpu field Sean Christopherson
2021-10-28 15:16 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 31/43] KVM: Move x86 VMX's posted interrupt list_head to vcpu_vmx Sean Christopherson
2021-10-28 15:33 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 32/43] KVM: VMX: Move preemption timer <=> hrtimer dance to common x86 Sean Christopherson
2021-10-28 15:45 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 33/43] KVM: x86: Unexport LAPIC's switch_to_{hv, sw}_timer() helpers Sean Christopherson
2021-10-28 15:45 ` [PATCH v2 33/43] KVM: x86: Unexport LAPIC's switch_to_{hv,sw}_timer() helpers Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 34/43] KVM: x86: Remove defunct pre_block/post_block kvm_x86_ops hooks Sean Christopherson
2021-10-28 15:46 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode Sean Christopherson
2021-10-25 14:26 ` Paolo Bonzini
2021-10-27 15:06 ` Sean Christopherson
2021-10-27 15:36 ` Paolo Bonzini
2021-10-27 16:08 ` Sean Christopherson
2021-10-27 16:14 ` Paolo Bonzini
2021-10-28 16:12 ` Maxim Levitsky
2021-10-28 17:06 ` Sean Christopherson
2021-10-09 2:12 ` [PATCH v2 36/43] KVM: SVM: Don't bother checking for "running" AVIC when kicking for IPIs Sean Christopherson
2021-10-31 14:50 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) Sean Christopherson
2021-10-25 14:22 ` Paolo Bonzini
2021-10-25 15:48 ` Sean Christopherson
2021-10-25 15:57 ` Paolo Bonzini
2021-10-25 16:00 ` Sean Christopherson
2021-10-31 16:34 ` Maxim Levitsky
2021-10-09 2:12 ` Sean Christopherson [this message]
2021-10-31 16:35 ` [PATCH v2 38/43] KVM: Drop defunct kvm_arch_vcpu_(un)blocking() hooks Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" Sean Christopherson
2021-10-25 14:34 ` Paolo Bonzini
2021-10-27 16:04 ` Sean Christopherson
2021-10-27 22:09 ` Paolo Bonzini
2021-10-31 22:15 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU Sean Christopherson
2021-10-25 15:05 ` Paolo Bonzini
2021-10-27 15:30 ` Sean Christopherson
2021-10-31 22:19 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 41/43] KVM: VMX: Pass desired vector instead of bool for triggering posted IRQ Sean Christopherson
2021-10-31 22:25 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 42/43] KVM: VMX: Fold fallback path into triggering posted IRQ helper Sean Christopherson
2021-10-31 22:30 ` Maxim Levitsky
2021-10-09 2:12 ` [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup Sean Christopherson
2021-10-25 14:16 ` Paolo Bonzini
2021-10-31 22:33 ` Maxim Levitsky
2021-10-25 14:13 ` [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul Paolo Bonzini
2021-10-27 14:41 ` Sean Christopherson
2021-10-27 14:57 ` Paolo Bonzini
2021-10-27 15:28 ` Sean Christopherson
2021-10-27 15:37 ` Paolo Bonzini
2021-10-26 7:20 ` Christian Borntraeger
2021-10-26 14:48 ` Sean Christopherson
2021-10-26 18:29 ` Christian Borntraeger
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