From patchwork Tue Mar 12 09:20:24 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kiszka X-Patchwork-Id: 2254151 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id B2B024006E for ; Tue, 12 Mar 2013 09:20:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932166Ab3CLJUc (ORCPT ); Tue, 12 Mar 2013 05:20:32 -0400 Received: from thoth.sbs.de ([192.35.17.2]:30645 "EHLO thoth.sbs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754756Ab3CLJUb (ORCPT ); Tue, 12 Mar 2013 05:20:31 -0400 Received: from mail1.siemens.de (localhost [127.0.0.1]) by thoth.sbs.de (8.13.6/8.13.6) with ESMTP id r2C9KPh7014608; Tue, 12 Mar 2013 10:20:25 +0100 Received: from mchn199C.mchp.siemens.de (ro1chmvd.ww300.siemens.net [139.22.40.113]) by mail1.siemens.de (8.13.6/8.13.6) with SMTP id r2C9KOYt016391; Tue, 12 Mar 2013 10:20:24 +0100 Message-ID: <513EF358.3050909@siemens.com> Date: Tue, 12 Mar 2013 10:20:24 +0100 From: Jan Kiszka User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 MIME-Version: 1.0 To: Gleb Natapov , Marcelo Tosatti CC: kvm , Paolo Bonzini Subject: [PATCH] KVM: x86: Drop unused return code from VCPU reset callback Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Neither vmx nor svm nor the common part may generate an error on kvm_vcpu_reset. So drop the return code. Signed-off-by: Jan Kiszka Reviewed-by: Paolo Bonzini --- Will use this for refactoring INIT/SIPI handling. arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/svm.c | 4 +--- arch/x86/kvm/vmx.c | 7 +------ arch/x86/kvm/x86.c | 15 ++++++--------- 4 files changed, 9 insertions(+), 19 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 635a74d..348d859 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -643,7 +643,7 @@ struct kvm_x86_ops { /* Create, but do not attach this VCPU */ struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id); void (*vcpu_free)(struct kvm_vcpu *vcpu); - int (*vcpu_reset)(struct kvm_vcpu *vcpu); + void (*vcpu_reset)(struct kvm_vcpu *vcpu); void (*prepare_guest_switch)(struct kvm_vcpu *vcpu); void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index e1b1ce2..907e428 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1191,7 +1191,7 @@ static void init_vmcb(struct vcpu_svm *svm) enable_gif(svm); } -static int svm_vcpu_reset(struct kvm_vcpu *vcpu) +static void svm_vcpu_reset(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); u32 dummy; @@ -1207,8 +1207,6 @@ static int svm_vcpu_reset(struct kvm_vcpu *vcpu) kvm_cpuid(vcpu, &eax, &dummy, &dummy, &dummy); kvm_register_write(vcpu, VCPU_REGS_RDX, eax); - - return 0; } static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 260da9a..f17cd2a 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4100,11 +4100,10 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) return 0; } -static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) +static void vmx_vcpu_reset(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); u64 msr; - int ret; vmx->rmode.vm86_active = 0; @@ -4195,10 +4194,6 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) update_exception_bitmap(&vmx->vcpu); vpid_sync_context(vmx); - - ret = 0; - - return ret; } /* diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 35b4912..b891ac3 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -162,7 +162,7 @@ u64 __read_mostly host_xcr0; static int emulator_fix_hypercall(struct x86_emulate_ctxt *ctxt); -static int kvm_vcpu_reset(struct kvm_vcpu *vcpu); +static void kvm_vcpu_reset(struct kvm_vcpu *vcpu); static inline void kvm_async_pf_hash_reset(struct kvm_vcpu *vcpu) { @@ -5851,9 +5851,7 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) pr_debug("vcpu %d received sipi with vector # %x\n", vcpu->vcpu_id, vcpu->arch.sipi_vector); kvm_lapic_reset(vcpu); - r = kvm_vcpu_reset(vcpu); - if (r) - return r; + kvm_vcpu_reset(vcpu); vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; } @@ -6479,9 +6477,8 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) r = vcpu_load(vcpu); if (r) return r; - r = kvm_vcpu_reset(vcpu); - if (r == 0) - r = kvm_mmu_setup(vcpu); + kvm_vcpu_reset(vcpu); + r = kvm_mmu_setup(vcpu); vcpu_put(vcpu); return r; @@ -6518,7 +6515,7 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) kvm_x86_ops->vcpu_free(vcpu); } -static int kvm_vcpu_reset(struct kvm_vcpu *vcpu) +static void kvm_vcpu_reset(struct kvm_vcpu *vcpu) { atomic_set(&vcpu->arch.nmi_queued, 0); vcpu->arch.nmi_pending = 0; @@ -6545,7 +6542,7 @@ static int kvm_vcpu_reset(struct kvm_vcpu *vcpu) vcpu->arch.regs_avail = ~0; vcpu->arch.regs_dirty = ~0; - return kvm_x86_ops->vcpu_reset(vcpu); + kvm_x86_ops->vcpu_reset(vcpu); } int kvm_arch_hardware_enable(void *garbage)