From patchwork Fri Sep 25 21:41:14 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 7268181 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id AF70D9F380 for ; Fri, 25 Sep 2015 21:44:45 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BA8942095F for ; Fri, 25 Sep 2015 21:44:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3335D208E8 for ; Fri, 25 Sep 2015 21:44:43 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zfali-000648-P5; Fri, 25 Sep 2015 21:43:02 +0000 Received: from mail-pa0-f46.google.com ([209.85.220.46]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZfalX-0005vL-1t for linux-arm-kernel@lists.infradead.org; Fri, 25 Sep 2015 21:42:51 +0000 Received: by padhy16 with SMTP id hy16so116481806pad.1 for ; Fri, 25 Sep 2015 14:42:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=7f0wbSzgkU+If+pXqk3QmJEv2eoR92iSo0q2RWtWAyY=; b=cq8aO45P+jRExbLXP9IwFT5Kz3roYNHhDodI67cIsQsrGQa++/UPqWsVPdunL8YbhJ jxOuspfuDC/A8eoYnN2APdvm0arm9B77mObT2SSTCBAl6/fwu9jb8nsV33y+lC4YEiK1 Rb0nh//BBf7EKmrrhyuJiiH8CLfKdQR9HqH7pYuG+/G5Vh6zxpkcopdxBf67PiVIZBDB iRqHHKohgwiNKRaMF2dxJ5vZqVoL9U5Bd9xwZhYo61LKcvAQTt5IHL4kfnVOetc6VbrN zcHl43dKGYYyOzGIEFpAHQwIIHt2h0nvdKxWCzDpgL4Q7U1t0xxCmd0ii0PDvJLP7nkS GBLA== X-Gm-Message-State: ALoCoQnOMcT3V9KGUApu/D4l2mCsAjcakDrDmq4eT1w8TjATdNYQ0jy+3BOLakF/OdrwgH3sDuQ/ X-Received: by 10.69.2.227 with SMTP id br3mr10280238pbd.9.1443217350555; Fri, 25 Sep 2015 14:42:30 -0700 (PDT) Received: from gnx2579.st.com. ([70.35.39.2]) by smtp.gmail.com with ESMTPSA id u1sm5606756pbz.56.2015.09.25.14.42.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 25 Sep 2015 14:42:29 -0700 (PDT) From: Eric Auger To: eric.auger@st.com, eric.auger@linaro.org, christoffer.dall@linaro.org, marc.zyngier@arm.com, drjones@redhat.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH v3 1/4] KVM: arm/arm64: rename pause into power_off Date: Fri, 25 Sep 2015 23:41:14 +0200 Message-Id: <1443217277-13173-2-git-send-email-eric.auger@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1443217277-13173-1-git-send-email-eric.auger@linaro.org> References: <1443217277-13173-1-git-send-email-eric.auger@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150925_144251_130951_788CE37F X-CRM114-Status: GOOD ( 18.45 ) X-Spam-Score: -2.6 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, patches@linaro.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The kvm_vcpu_arch pause field is renamed into power_off to prepare for the introduction of a new pause field. Also vcpu_pause is renamed into vcpu_sleep since we will sleep until both power_off and pause are false. Signed-off-by: Eric Auger Reviewed-by: Christoffer Dall --- v1 -> v2: - rename pause in kvm_arch_vcpu_ioctl_[set,get]_mpstate - rename vcpu_pause into vcpu_sleep --- arch/arm/include/asm/kvm_host.h | 4 ++-- arch/arm/kvm/arm.c | 20 ++++++++++---------- arch/arm/kvm/psci.c | 10 +++++----- arch/arm64/include/asm/kvm_host.h | 4 ++-- 4 files changed, 19 insertions(+), 19 deletions(-) diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 3df1e97..1931a25 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -125,8 +125,8 @@ struct kvm_vcpu_arch { * here. */ - /* Don't run the guest on this vcpu */ - bool pause; + /* vcpu power-off state */ + bool power_off; /* IO related fields */ struct kvm_decode mmio_decode; diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index a9491ef..2b19ef7 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -318,7 +318,7 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { - if (vcpu->arch.pause) + if (vcpu->arch.power_off) mp_state->mp_state = KVM_MP_STATE_STOPPED; else mp_state->mp_state = KVM_MP_STATE_RUNNABLE; @@ -331,10 +331,10 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, { switch (mp_state->mp_state) { case KVM_MP_STATE_RUNNABLE: - vcpu->arch.pause = false; + vcpu->arch.power_off = false; break; case KVM_MP_STATE_STOPPED: - vcpu->arch.pause = true; + vcpu->arch.power_off = true; break; default: return -EINVAL; @@ -478,11 +478,11 @@ bool kvm_arch_intc_initialized(struct kvm *kvm) return vgic_initialized(kvm); } -static void vcpu_pause(struct kvm_vcpu *vcpu) +static void vcpu_sleep(struct kvm_vcpu *vcpu) { wait_queue_head_t *wq = kvm_arch_vcpu_wq(vcpu); - wait_event_interruptible(*wq, !vcpu->arch.pause); + wait_event_interruptible(*wq, !vcpu->arch.power_off); } static int kvm_vcpu_initialized(struct kvm_vcpu *vcpu) @@ -532,8 +532,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) update_vttbr(vcpu->kvm); - if (vcpu->arch.pause) - vcpu_pause(vcpu); + if (vcpu->arch.power_off) + vcpu_sleep(vcpu); /* * Disarming the background timer must be done in a @@ -780,12 +780,12 @@ static int kvm_arch_vcpu_ioctl_vcpu_init(struct kvm_vcpu *vcpu, vcpu_reset_hcr(vcpu); /* - * Handle the "start in power-off" case by marking the VCPU as paused. + * Handle the "start in power-off" case. */ if (test_bit(KVM_ARM_VCPU_POWER_OFF, vcpu->arch.features)) - vcpu->arch.pause = true; + vcpu->arch.power_off = true; else - vcpu->arch.pause = false; + vcpu->arch.power_off = false; return 0; } diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c index ad6f642..0b55696 100644 --- a/arch/arm/kvm/psci.c +++ b/arch/arm/kvm/psci.c @@ -63,7 +63,7 @@ static unsigned long kvm_psci_vcpu_suspend(struct kvm_vcpu *vcpu) static void kvm_psci_vcpu_off(struct kvm_vcpu *vcpu) { - vcpu->arch.pause = true; + vcpu->arch.power_off = true; } static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu) @@ -87,7 +87,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu) */ if (!vcpu) return PSCI_RET_INVALID_PARAMS; - if (!vcpu->arch.pause) { + if (!vcpu->arch.power_off) { if (kvm_psci_version(source_vcpu) != KVM_ARM_PSCI_0_1) return PSCI_RET_ALREADY_ON; else @@ -115,7 +115,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu) * the general puspose registers are undefined upon CPU_ON. */ *vcpu_reg(vcpu, 0) = context_id; - vcpu->arch.pause = false; + vcpu->arch.power_off = false; smp_mb(); /* Make sure the above is visible */ wq = kvm_arch_vcpu_wq(vcpu); @@ -153,7 +153,7 @@ static unsigned long kvm_psci_vcpu_affinity_info(struct kvm_vcpu *vcpu) mpidr = kvm_vcpu_get_mpidr_aff(tmp); if ((mpidr & target_affinity_mask) == target_affinity) { matching_cpus++; - if (!tmp->arch.pause) + if (!tmp->arch.power_off) return PSCI_0_2_AFFINITY_LEVEL_ON; } } @@ -179,7 +179,7 @@ static void kvm_prepare_system_event(struct kvm_vcpu *vcpu, u32 type) * re-initialized. */ kvm_for_each_vcpu(i, tmp, vcpu->kvm) { - tmp->arch.pause = true; + tmp->arch.power_off = true; kvm_vcpu_kick(tmp); } diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 4562459..d89ec1b 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -148,8 +148,8 @@ struct kvm_vcpu_arch { u32 mdscr_el1; } guest_debug_preserved; - /* Don't run the guest */ - bool pause; + /* vcpu power-off state */ + bool power_off; /* IO related fields */ struct kvm_decode mmio_decode;