From patchwork Sat Oct 9 02:12:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 12546935 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5798C433F5 for ; Sat, 9 Oct 2021 02:16:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AE57F60FD9 for ; Sat, 9 Oct 2021 02:16:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244699AbhJICSH (ORCPT ); Fri, 8 Oct 2021 22:18:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244230AbhJICRr (ORCPT ); Fri, 8 Oct 2021 22:17:47 -0400 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 69E84C0613B6 for ; Fri, 8 Oct 2021 19:14:06 -0700 (PDT) Received: by mail-qk1-x749.google.com with SMTP id x3-20020a05620a448300b0045e3e24de82so9814841qkp.3 for ; Fri, 08 Oct 2021 19:14:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=vAfx5V7oXhMQdNK6n8fKDF9GGCBj6ltSzPsyuPD42Bs=; b=HyCTY7JAidC//XRRYdKJX4UqDMF+OOF3bUAiJb+P7QyZ+wCs6Z/juMFKBQx23iMMVN cqVP/RAmIlHJJh/IhCDJgzpkP3/4PSr5HvmGU1YPAIdroNNdN/LgWT1sdedqNCFyThVJ OB3PsHG+5QPOxxfyOCjKqjYqJ4/3yZaYt4IJa7HdBQLnErOW6mzpDjvlQYRWWwwhfSDr es8zEbyw0sk5VgOb2rS8SbWA9aRFUd6GPvV5QVuzDE3suPpPWMfVuh4VMHrQBClBm931 uNAJ7v8jb3UYDmZvbfs/UX4HaL+qaNp7Uu3y1027BulayBFMmGfZVNaeWs+z9FeE6i1a QWaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=vAfx5V7oXhMQdNK6n8fKDF9GGCBj6ltSzPsyuPD42Bs=; b=2BkI+mfpxvX2bw09rnnvqMoP8DMeZGQAX3R9VaV8TjgdKIrKoAttKBSy7aEknVcTXq lGsUqo0Za0d8bpOwZwYDNE1oNX37dNcQMOqpyuS79Bdi8xIFz6OdAAyq8Z0Qi88j6nqe Q2w3SomZrS9+h+bgihwU+chcuxyrbLLrkB9qkaihiqW0grLNQ4dzlJIGBp2Hh1iehJ+M s4z15YoyuOI2kR0axTqb9vI6XIpdecQHWNy7719aVlI3DdoLHcJvE0go+VCT8eSNIdWk lMTWlIKgz6E1U2frtvoG6Xo6LJ6nC/ERMqa1j3WwOW3Dnmhr1jITO6Xrdg4CHiV3dBuo x76A== X-Gm-Message-State: AOAM530j4/VLTG6YraiCUNz9vrWK6CbFHXjIm6t6zZ1CA83oifpG3GGj Yy2q7VOqm2E7iQcTOVo66SeXhSvoq6I= X-Google-Smtp-Source: ABdhPJx91iwUKT3XNp8Nkk81qQnI7CC/+A7yDe4tFSaroMx6ORDJ7jKPf6Pp/KOtyNzdi03H7gazxyAr7d8= X-Received: from seanjc798194.pdx.corp.google.com ([2620:15c:90:200:e39b:6333:b001:cb]) (user=seanjc job=sendgmr) by 2002:ac8:5c0a:: with SMTP id i10mr1952886qti.23.1633745645576; Fri, 08 Oct 2021 19:14:05 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 8 Oct 2021 19:12:27 -0700 In-Reply-To: <20211009021236.4122790-1-seanjc@google.com> Message-Id: <20211009021236.4122790-35-seanjc@google.com> Mime-Version: 1.0 References: <20211009021236.4122790-1-seanjc@google.com> X-Mailer: git-send-email 2.33.0.882.g93a45727a2-goog Subject: [PATCH v2 34/43] KVM: x86: Remove defunct pre_block/post_block kvm_x86_ops hooks From: Sean Christopherson To: Marc Zyngier , Huacai Chen , Aleksandar Markovic , Paul Mackerras , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Paolo Bonzini Cc: James Morse , Alexandru Elisei , Suzuki K Poulose , Atish Patra , David Hildenbrand , Cornelia Huck , Claudio Imbrenda , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , 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 , Oliver Upton , Jing Zhang Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Drop kvm_x86_ops' pre/post_block() now that all implementations are nops. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Maxim Levitsky --- arch/x86/include/asm/kvm-x86-ops.h | 2 -- arch/x86/include/asm/kvm_host.h | 12 ------------ arch/x86/kvm/vmx/vmx.c | 13 ------------- arch/x86/kvm/x86.c | 6 +----- 4 files changed, 1 insertion(+), 32 deletions(-) diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h index cefe1d81e2e8..c2b007171abd 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(pre_block) -KVM_X86_OP_NULL(post_block) KVM_X86_OP_NULL(vcpu_blocking) KVM_X86_OP_NULL(vcpu_unblocking) KVM_X86_OP_NULL(update_pi_irte) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 328103a520d3..76a8dddc1a48 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1445,18 +1445,6 @@ struct kvm_x86_ops { const struct kvm_pmu_ops *pmu_ops; const struct kvm_x86_nested_ops *nested_ops; - /* - * Architecture specific hooks for vCPU blocking due to - * HLT instruction. - * Returns for .pre_block(): - * - 0 means continue to block the vCPU. - * - 1 means we cannot block the vCPU since some event - * happens during this period, such as, 'ON' bit in - * posted-interrupts descriptor is set. - */ - int (*pre_block)(struct kvm_vcpu *vcpu); - void (*post_block)(struct kvm_vcpu *vcpu); - void (*vcpu_blocking)(struct kvm_vcpu *vcpu); void (*vcpu_unblocking)(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index a24f19874716..13e732a818f3 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7462,16 +7462,6 @@ void vmx_update_cpu_dirty_logging(struct kvm_vcpu *vcpu) secondary_exec_controls_clearbit(vmx, SECONDARY_EXEC_ENABLE_PML); } -static int vmx_pre_block(struct kvm_vcpu *vcpu) -{ - return 0; -} - -static void vmx_post_block(struct kvm_vcpu *vcpu) -{ - -} - static void vmx_setup_mce(struct kvm_vcpu *vcpu) { if (vcpu->arch.mcg_cap & MCG_LMCE_P) @@ -7665,9 +7655,6 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = { .cpu_dirty_log_size = PML_ENTITY_NUM, .update_cpu_dirty_logging = vmx_update_cpu_dirty_logging, - .pre_block = vmx_pre_block, - .post_block = vmx_post_block, - .pmu_ops = &intel_pmu_ops, .nested_ops = &vmx_nested_ops, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 909e932a7ae7..9643f23c28c7 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9898,8 +9898,7 @@ static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu) { bool hv_timer; - if (!kvm_arch_vcpu_runnable(vcpu) && - (!kvm_x86_ops.pre_block || static_call(kvm_x86_pre_block)(vcpu) == 0)) { + if (!kvm_arch_vcpu_runnable(vcpu)) { /* * Switch to the software timer before halt-polling/blocking as * the guest's timer may be a break event for the vCPU, and the @@ -9921,9 +9920,6 @@ static inline int vcpu_block(struct kvm *kvm, struct kvm_vcpu *vcpu) if (hv_timer) kvm_lapic_switch_to_hv_timer(vcpu); - if (kvm_x86_ops.post_block) - static_call(kvm_x86_post_block)(vcpu); - if (!kvm_check_request(KVM_REQ_UNHALT, vcpu)) return 1; }