From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoffer Dall Date: Mon, 04 Dec 2017 20:35:31 +0000 Subject: [PATCH v3 09/16] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_mpstate Message-Id: <20171204203538.8370-10-cdall@kernel.org> List-Id: References: <20171204203538.8370-1-cdall@kernel.org> In-Reply-To: <20171204203538.8370-1-cdall@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org, Marc Zyngier , James Hogan , Cornelia Huck , kvm-ppc@vger.kernel.org, Paul Mackerras , Christian Borntraeger , linux-arm-kernel@lists.infradead.org, Paolo Bonzini , linux-s390@vger.kernel.org, kvmarm@lists.cs.columbia.edu From: Christoffer Dall Move vcpu_load() and vcpu_put() into the architecture specific implementations of kvm_arch_vcpu_ioctl_set_mpstate(). Reviewed-by: David Hildenbrand Signed-off-by: Christoffer Dall --- arch/s390/kvm/kvm-s390.c | 3 +++ arch/x86/kvm/x86.c | 14 +++++++++++--- virt/kvm/arm/arm.c | 9 +++++++-- virt/kvm/kvm_main.c | 2 -- 4 files changed, 21 insertions(+), 7 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 396fc3db6d63..8fade858c790 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2853,6 +2853,8 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, { int rc = 0; + vcpu_load(vcpu); + /* user space knows about this interface - let it control the state */ vcpu->kvm->arch.user_cpu_state_ctrl = 1; @@ -2870,6 +2872,7 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, rc = -ENXIO; } + vcpu_put(vcpu); return rc; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9bf62c336aa5..8e67428af01b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7456,15 +7456,19 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = -EINVAL; + + vcpu_load(vcpu); + if (!lapic_in_kernel(vcpu) && mp_state->mp_state != KVM_MP_STATE_RUNNABLE) - return -EINVAL; + goto out; /* INITs are latched while in SMM */ if ((is_smm(vcpu) || vcpu->arch.smi_pending) && (mp_state->mp_state = KVM_MP_STATE_SIPI_RECEIVED || mp_state->mp_state = KVM_MP_STATE_INIT_RECEIVED)) - return -EINVAL; + goto out; if (mp_state->mp_state = KVM_MP_STATE_SIPI_RECEIVED) { vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED; @@ -7472,7 +7476,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, } else vcpu->arch.mp_state = mp_state->mp_state; kvm_make_request(KVM_REQ_EVENT, vcpu); - return 0; + + ret = 0; +out: + vcpu_put(vcpu); + return ret; } int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index, diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index a7171701df44..9a3acbcf542c 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -395,6 +395,10 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = 0; + + vcpu_load(vcpu); + switch (mp_state->mp_state) { case KVM_MP_STATE_RUNNABLE: vcpu->arch.power_off = false; @@ -403,10 +407,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, vcpu_power_off(vcpu); break; default: - return -EINVAL; + ret = -EINVAL; } - return 0; + vcpu_put(vcpu); + return ret; } /** diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index eac3c29697db..f3600052adbb 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2618,9 +2618,7 @@ static long kvm_vcpu_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&mp_state, argp, sizeof(mp_state))) goto out; - vcpu_load(vcpu); r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state); - vcpu_put(vcpu); break; } case KVM_TRANSLATE: { -- 2.14.2 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoffer Dall Subject: [PATCH v3 09/16] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_mpstate Date: Mon, 4 Dec 2017 21:35:31 +0100 Message-ID: <20171204203538.8370-10-cdall@kernel.org> References: <20171204203538.8370-1-cdall@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 91ACB49D6B for ; Mon, 4 Dec 2017 15:32:56 -0500 (EST) Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fNf1m2k1vC3j for ; Mon, 4 Dec 2017 15:32:55 -0500 (EST) Received: from mail-wm0-f67.google.com (mail-wm0-f67.google.com [74.125.82.67]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 59B02406D0 for ; Mon, 4 Dec 2017 15:32:53 -0500 (EST) Received: by mail-wm0-f67.google.com with SMTP id f206so10419789wmf.5 for ; Mon, 04 Dec 2017 12:36:01 -0800 (PST) In-Reply-To: <20171204203538.8370-1-cdall@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org, Marc Zyngier , James Hogan , Cornelia Huck , kvm-ppc@vger.kernel.org, Paul Mackerras , Christian Borntraeger , linux-arm-kernel@lists.infradead.org, Paolo Bonzini , linux-s390@vger.kernel.org, kvmarm@lists.cs.columbia.edu List-Id: kvmarm@lists.cs.columbia.edu From: Christoffer Dall Move vcpu_load() and vcpu_put() into the architecture specific implementations of kvm_arch_vcpu_ioctl_set_mpstate(). Reviewed-by: David Hildenbrand Signed-off-by: Christoffer Dall --- arch/s390/kvm/kvm-s390.c | 3 +++ arch/x86/kvm/x86.c | 14 +++++++++++--- virt/kvm/arm/arm.c | 9 +++++++-- virt/kvm/kvm_main.c | 2 -- 4 files changed, 21 insertions(+), 7 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 396fc3db6d63..8fade858c790 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2853,6 +2853,8 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, { int rc = 0; + vcpu_load(vcpu); + /* user space knows about this interface - let it control the state */ vcpu->kvm->arch.user_cpu_state_ctrl = 1; @@ -2870,6 +2872,7 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, rc = -ENXIO; } + vcpu_put(vcpu); return rc; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9bf62c336aa5..8e67428af01b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7456,15 +7456,19 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = -EINVAL; + + vcpu_load(vcpu); + if (!lapic_in_kernel(vcpu) && mp_state->mp_state != KVM_MP_STATE_RUNNABLE) - return -EINVAL; + goto out; /* INITs are latched while in SMM */ if ((is_smm(vcpu) || vcpu->arch.smi_pending) && (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED || mp_state->mp_state == KVM_MP_STATE_INIT_RECEIVED)) - return -EINVAL; + goto out; if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) { vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED; @@ -7472,7 +7476,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, } else vcpu->arch.mp_state = mp_state->mp_state; kvm_make_request(KVM_REQ_EVENT, vcpu); - return 0; + + ret = 0; +out: + vcpu_put(vcpu); + return ret; } int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index, diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index a7171701df44..9a3acbcf542c 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -395,6 +395,10 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = 0; + + vcpu_load(vcpu); + switch (mp_state->mp_state) { case KVM_MP_STATE_RUNNABLE: vcpu->arch.power_off = false; @@ -403,10 +407,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, vcpu_power_off(vcpu); break; default: - return -EINVAL; + ret = -EINVAL; } - return 0; + vcpu_put(vcpu); + return ret; } /** diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index eac3c29697db..f3600052adbb 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2618,9 +2618,7 @@ static long kvm_vcpu_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&mp_state, argp, sizeof(mp_state))) goto out; - vcpu_load(vcpu); r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state); - vcpu_put(vcpu); break; } case KVM_TRANSLATE: { -- 2.14.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 04 Dec 2017 21:39:47 +0100 (CET) Received: from mail-wm0-x243.google.com ([IPv6:2a00:1450:400c:c09::243]:37747 "EHLO mail-wm0-x243.google.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23992391AbdLDUgGWu6H6 (ORCPT ); Mon, 4 Dec 2017 21:36:06 +0100 Received: by mail-wm0-x243.google.com with SMTP id f140so16627189wmd.2 for ; Mon, 04 Dec 2017 12:36:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=christofferdall-dk.20150623.gappssmtp.com; s=20150623; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=PCJeEI2Yc8eiVyqKh4MGBqD1y7hf4RhVqlmbDFQkW50=; b=L/27JIj8ivYzOkTEbEPfmNSxG/eOz4PIRW87oe2BHXhrLnm768+gWS/IRczHyzcSpT WUxgl79PgWJzL6zhLrKFNmMD796WKky0vlJ6dJHosLtC+wwDPYNyymOa+3XM/C3ZuAPB VD8eFo2v8Gl7QvIENnQND94dsDIlcXGPOPujiE8hmMJAgYhyGjgW03b7g12p/fzZTxBF IBk0SfouaZKudG+K7ZB/DuJVjewz25O6+dVgjwMdQoLcowckG6A6f8s5q/WvXdSWo3Mt hdwW+0NHNycvCWhmjGUXDvaBstKCjxeTeSYcbp0wNJjAY8CQmGwwnw1JkGjEguWx0FiV 20wQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=PCJeEI2Yc8eiVyqKh4MGBqD1y7hf4RhVqlmbDFQkW50=; b=R6Y1afnrgDs3nW/5/pyoADxeeGLrPtrx2rC6yub7U5m8p6Zt31/7EAx7aLDzROIGQS INiqjkYF75V66rkaQiL1jKKoq8x+8kznDkpwMIXDSMdwr+cDyom0xD+qn9sVQ8FNT4Ec /Y79lvJ5lXHfv6b5p2D+W9840xNMaXhlDvA3+ZmYBENWbbZo0rbuKzWgtoJRuxOVF3HG LsMKEwzDLLFwHymwX7hSirZNlH+7+Mx785Sx7IEyGxjsHUdIy5CM/1297ycaE7EbIzR+ ilXojkY34qvqouDpkaC8P4qnCIqCbP+Obnoczkr5IX6VCNSk9TS/qs8fTZY+RwpkD3eR UT2A== X-Gm-Message-State: AJaThX7st0hhfvXbIVX/lUPHcXQZlIGL7UM4QDdSxC9FJryQoRS3u9Xe PjgbiCp4rVWwYlzFl+iLmt5xEg== X-Google-Smtp-Source: AGs4zMZW4CzxkQ4hvAivBjN05kmbWIiPsnYygwCEQVxvM5FF9DfMeHCTbQrAKllLen+7bbljVBfELw== X-Received: by 10.80.173.20 with SMTP id y20mr31785286edc.23.1512419761091; Mon, 04 Dec 2017 12:36:01 -0800 (PST) Received: from localhost.localdomain (x50d2404e.cust.hiper.dk. [80.210.64.78]) by smtp.gmail.com with ESMTPSA id k42sm8434943edb.94.2017.12.04.12.35.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 04 Dec 2017 12:36:00 -0800 (PST) From: Christoffer Dall To: kvm@vger.kernel.org Cc: Andrew Jones , Christoffer Dall , Paolo Bonzini , =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= , Marc Zyngier , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, James Hogan , linux-mips@linux-mips.org, Paul Mackerras , kvm-ppc@vger.kernel.org, Christian Borntraeger , Cornelia Huck , linux-s390@vger.kernel.org Subject: [PATCH v3 09/16] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_mpstate Date: Mon, 4 Dec 2017 21:35:31 +0100 Message-Id: <20171204203538.8370-10-cdall@kernel.org> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20171204203538.8370-1-cdall@kernel.org> References: <20171204203538.8370-1-cdall@kernel.org> Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 61296 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: cdall@kernel.org Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips From: Christoffer Dall Move vcpu_load() and vcpu_put() into the architecture specific implementations of kvm_arch_vcpu_ioctl_set_mpstate(). Reviewed-by: David Hildenbrand Signed-off-by: Christoffer Dall --- arch/s390/kvm/kvm-s390.c | 3 +++ arch/x86/kvm/x86.c | 14 +++++++++++--- virt/kvm/arm/arm.c | 9 +++++++-- virt/kvm/kvm_main.c | 2 -- 4 files changed, 21 insertions(+), 7 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 396fc3db6d63..8fade858c790 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2853,6 +2853,8 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, { int rc = 0; + vcpu_load(vcpu); + /* user space knows about this interface - let it control the state */ vcpu->kvm->arch.user_cpu_state_ctrl = 1; @@ -2870,6 +2872,7 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, rc = -ENXIO; } + vcpu_put(vcpu); return rc; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9bf62c336aa5..8e67428af01b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7456,15 +7456,19 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = -EINVAL; + + vcpu_load(vcpu); + if (!lapic_in_kernel(vcpu) && mp_state->mp_state != KVM_MP_STATE_RUNNABLE) - return -EINVAL; + goto out; /* INITs are latched while in SMM */ if ((is_smm(vcpu) || vcpu->arch.smi_pending) && (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED || mp_state->mp_state == KVM_MP_STATE_INIT_RECEIVED)) - return -EINVAL; + goto out; if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) { vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED; @@ -7472,7 +7476,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, } else vcpu->arch.mp_state = mp_state->mp_state; kvm_make_request(KVM_REQ_EVENT, vcpu); - return 0; + + ret = 0; +out: + vcpu_put(vcpu); + return ret; } int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index, diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index a7171701df44..9a3acbcf542c 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -395,6 +395,10 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = 0; + + vcpu_load(vcpu); + switch (mp_state->mp_state) { case KVM_MP_STATE_RUNNABLE: vcpu->arch.power_off = false; @@ -403,10 +407,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, vcpu_power_off(vcpu); break; default: - return -EINVAL; + ret = -EINVAL; } - return 0; + vcpu_put(vcpu); + return ret; } /** diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index eac3c29697db..f3600052adbb 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2618,9 +2618,7 @@ static long kvm_vcpu_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&mp_state, argp, sizeof(mp_state))) goto out; - vcpu_load(vcpu); r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state); - vcpu_put(vcpu); break; } case KVM_TRANSLATE: { -- 2.14.2 From mboxrd@z Thu Jan 1 00:00:00 1970 From: cdall@kernel.org (Christoffer Dall) Date: Mon, 4 Dec 2017 21:35:31 +0100 Subject: [PATCH v3 09/16] KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_mpstate In-Reply-To: <20171204203538.8370-1-cdall@kernel.org> References: <20171204203538.8370-1-cdall@kernel.org> Message-ID: <20171204203538.8370-10-cdall@kernel.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Christoffer Dall Move vcpu_load() and vcpu_put() into the architecture specific implementations of kvm_arch_vcpu_ioctl_set_mpstate(). Reviewed-by: David Hildenbrand Signed-off-by: Christoffer Dall --- arch/s390/kvm/kvm-s390.c | 3 +++ arch/x86/kvm/x86.c | 14 +++++++++++--- virt/kvm/arm/arm.c | 9 +++++++-- virt/kvm/kvm_main.c | 2 -- 4 files changed, 21 insertions(+), 7 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 396fc3db6d63..8fade858c790 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2853,6 +2853,8 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, { int rc = 0; + vcpu_load(vcpu); + /* user space knows about this interface - let it control the state */ vcpu->kvm->arch.user_cpu_state_ctrl = 1; @@ -2870,6 +2872,7 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, rc = -ENXIO; } + vcpu_put(vcpu); return rc; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9bf62c336aa5..8e67428af01b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7456,15 +7456,19 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = -EINVAL; + + vcpu_load(vcpu); + if (!lapic_in_kernel(vcpu) && mp_state->mp_state != KVM_MP_STATE_RUNNABLE) - return -EINVAL; + goto out; /* INITs are latched while in SMM */ if ((is_smm(vcpu) || vcpu->arch.smi_pending) && (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED || mp_state->mp_state == KVM_MP_STATE_INIT_RECEIVED)) - return -EINVAL; + goto out; if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) { vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED; @@ -7472,7 +7476,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, } else vcpu->arch.mp_state = mp_state->mp_state; kvm_make_request(KVM_REQ_EVENT, vcpu); - return 0; + + ret = 0; +out: + vcpu_put(vcpu); + return ret; } int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index, diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index a7171701df44..9a3acbcf542c 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -395,6 +395,10 @@ int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, struct kvm_mp_state *mp_state) { + int ret = 0; + + vcpu_load(vcpu); + switch (mp_state->mp_state) { case KVM_MP_STATE_RUNNABLE: vcpu->arch.power_off = false; @@ -403,10 +407,11 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, vcpu_power_off(vcpu); break; default: - return -EINVAL; + ret = -EINVAL; } - return 0; + vcpu_put(vcpu); + return ret; } /** diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index eac3c29697db..f3600052adbb 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2618,9 +2618,7 @@ static long kvm_vcpu_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&mp_state, argp, sizeof(mp_state))) goto out; - vcpu_load(vcpu); r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state); - vcpu_put(vcpu); break; } case KVM_TRANSLATE: { -- 2.14.2