From patchwork Fri May 6 10:45:51 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 67265 Delivered-To: patch@linaro.org Received: by 10.140.92.199 with SMTP id b65csp252340qge; Fri, 6 May 2016 03:56:34 -0700 (PDT) X-Received: by 10.66.72.137 with SMTP id d9mr28056849pav.151.1462532194353; Fri, 06 May 2016 03:56:34 -0700 (PDT) Return-Path: Received: from bombadil.infradead.org (bombadil.infradead.org. [2001:1868:205::9]) by mx.google.com with ESMTPS id k66si42350pfb.102.2016.05.06.03.56.34 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 06 May 2016 03:56:34 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) client-ip=2001:1868:205::9; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) smtp.mailfrom=linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org 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 1aydPk-0001vI-Hw; Fri, 06 May 2016 10:55:20 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aydHN-0004Hm-0r for linux-arm-kernel@lists.infradead.org; Fri, 06 May 2016 10:46:43 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E7F7956A; Fri, 6 May 2016 03:46:48 -0700 (PDT) Received: from e104803-lin.lan (unknown [10.1.203.153]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AEF713F51B; Fri, 6 May 2016 03:46:39 -0700 (PDT) From: Andre Przywara To: Marc Zyngier , Christoffer Dall Subject: [PATCH v3 38/55] KVM: arm/arm64: vgic-new: vgic_kvm_device: KVM device ops registration Date: Fri, 6 May 2016 11:45:51 +0100 Message-Id: <1462531568-9799-39-git-send-email-andre.przywara@arm.com> X-Mailer: git-send-email 2.7.3 In-Reply-To: <1462531568-9799-1-git-send-email-andre.przywara@arm.com> References: <1462531568-9799-1-git-send-email-andre.przywara@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160506_034641_350291_7D740E4B X-CRM114-Status: GOOD ( 15.75 ) X-Spam-Score: -9.0 (---------) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-9.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [217.140.101.70 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -2.1 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 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-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, Eric Auger MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org From: Eric Auger This patch introduces the skeleton for the KVM device operations associated to KVM_DEV_TYPE_ARM_VGIC_V2 and KVM_DEV_TYPE_ARM_VGIC_V3. At that stage kvm_vgic_create is stubbed. Signed-off-by: Eric Auger Signed-off-by: Andre Przywara --- Changelog v1 .. v2: - rename vgic_kvm_device.c to vgic-kvm-device.c Changelog v2 .. v3: - replace inclusion of vgic/vgic.h with arm_vgic.h - add kvm_register_vgic_device() prototype to this patch virt/kvm/arm/vgic/vgic-kvm-device.c | 108 ++++++++++++++++++++++++++++++++++++ virt/kvm/arm/vgic/vgic.h | 2 + 2 files changed, 110 insertions(+) create mode 100644 virt/kvm/arm/vgic/vgic-kvm-device.c -- 2.7.3 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel Reviewed-by: Christoffer Dall diff --git a/virt/kvm/arm/vgic/vgic-kvm-device.c b/virt/kvm/arm/vgic/vgic-kvm-device.c new file mode 100644 index 0000000..ff332f3 --- /dev/null +++ b/virt/kvm/arm/vgic/vgic-kvm-device.c @@ -0,0 +1,108 @@ +/* + * VGIC: KVM DEVICE API + * + * Copyright (C) 2015 ARM Ltd. + * Author: Marc Zyngier + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include +#include + +/* common helpers */ + +static int vgic_create(struct kvm_device *dev, u32 type) +{ + return kvm_vgic_create(dev->kvm, type); +} + +static void vgic_destroy(struct kvm_device *dev) +{ + kfree(dev); +} + +void kvm_register_vgic_device(unsigned long type) +{ + switch (type) { + case KVM_DEV_TYPE_ARM_VGIC_V2: + kvm_register_device_ops(&kvm_arm_vgic_v2_ops, + KVM_DEV_TYPE_ARM_VGIC_V2); + break; +#ifdef CONFIG_KVM_ARM_VGIC_V3 + case KVM_DEV_TYPE_ARM_VGIC_V3: + kvm_register_device_ops(&kvm_arm_vgic_v3_ops, + KVM_DEV_TYPE_ARM_VGIC_V3); + break; +#endif + } +} + +/* V2 ops */ + +static int vgic_v2_set_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + return -ENXIO; +} + +static int vgic_v2_get_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + return -ENXIO; +} + +static int vgic_v2_has_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + return -ENXIO; +} + +struct kvm_device_ops kvm_arm_vgic_v2_ops = { + .name = "kvm-arm-vgic-v2", + .create = vgic_create, + .destroy = vgic_destroy, + .set_attr = vgic_v2_set_attr, + .get_attr = vgic_v2_get_attr, + .has_attr = vgic_v2_has_attr, +}; + +/* V3 ops */ + +#ifdef CONFIG_KVM_ARM_VGIC_V3 + +static int vgic_v3_set_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + return -ENXIO; +} + +static int vgic_v3_get_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + return -ENXIO; +} + +static int vgic_v3_has_attr(struct kvm_device *dev, + struct kvm_device_attr *attr) +{ + return -ENXIO; +} + +struct kvm_device_ops kvm_arm_vgic_v3_ops = { + .name = "kvm-arm-vgic-v3", + .create = vgic_create, + .destroy = vgic_destroy, + .set_attr = vgic_v3_set_attr, + .get_attr = vgic_v3_get_attr, + .has_attr = vgic_v3_has_attr, +}; + +#endif /* CONFIG_KVM_ARM_VGIC_V3 */ + diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h index 635e2e2..e7c66a5 100644 --- a/virt/kvm/arm/vgic/vgic.h +++ b/virt/kvm/arm/vgic/vgic.h @@ -72,4 +72,6 @@ static inline int vgic_register_redist_iodevs(struct kvm *kvm, } #endif +void kvm_register_vgic_device(unsigned long type); + #endif