From patchwork Wed Nov 23 13:01:52 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vijay Kilari X-Patchwork-Id: 9443183 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9D04C600BA for ; Wed, 23 Nov 2016 13:05:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 914AA208E3 for ; Wed, 23 Nov 2016 13:05:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8450025F3E; Wed, 23 Nov 2016 13:05:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: * X-Spam-Status: No, score=1.4 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,FREEMAIL_FROM,RCVD_IN_BL_SPAMCOP_NET,RCVD_IN_DNSWL_MED, RCVD_IN_SORBS_SPAM, RCVD_IN_SORBS_WEB, T_DKIM_INVALID autolearn=no version=3.3.1 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.wl.linuxfoundation.org (Postfix) with ESMTPS id 6A21F208E3 for ; Wed, 23 Nov 2016 13:05:50 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1c9XDW-0004a7-Dt; Wed, 23 Nov 2016 13:04:02 +0000 Received: from mail-pf0-x244.google.com ([2607:f8b0:400e:c00::244]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1c9XCH-0003zO-Op for linux-arm-kernel@lists.infradead.org; Wed, 23 Nov 2016 13:02:48 +0000 Received: by mail-pf0-x244.google.com with SMTP id y68so703922pfb.1 for ; Wed, 23 Nov 2016 05:02:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=pi+o9cPx+Q6E/SjbQy1aJh0DAyjjGlzaCtf1wFxJY2A=; b=WHagkS1/0WRHEKAqHN+SVpdkKA7x9meCPq8INuhniaAYMtggtE4AyY5E9XJLYqV57c cm9I12Dk5eb8Z9nof14tPVb6O6QMyksoijdTvmYI/+1jUc5in25Vpiclr4qI2oE8F7/H ejJpcZLQVq86fpBWG3rSYyrmJwpbvG9LjZlOqaXfi6BV13zz443chqwbi8RgDrXsB+mq JRBG7HZYi7W1c967GrEKvqTEDwcdN0QT49qr9E+CfYfvbs5GqVQQ9B6FOeM943ytL5d6 3ny/7ImbrvtffojmI29tYt/cpSzfFi2i1OfC+ijtiTJ2KruetwJyz/dTNeIEy8qkNlzs OdRw== 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=pi+o9cPx+Q6E/SjbQy1aJh0DAyjjGlzaCtf1wFxJY2A=; b=EgQE9xaf2gPpMSOECSVtWi4KZhgujeHrOawO+WjXT/XEQh9oCEqYfUNbQdneFVcLQh vNPqdteh8Bn4lUrexEy7tQycIsn3tVcWXBOrOiVV/U0TpPsnUZqa4bT7rxul8In/0AFn t3LOgdf6zjT9sGTWI1u+xb1PSZcqZw7lp1KPa1L+ZtTRokkDtZv1aLZXPn/DmhrgBEvr BgTuzLxFSdYwBPMMUKkOzCaY8/S/pRcCTyqBoY44vuBQci4kQBj9pf9TPUbW7B1qStq7 JoUoxwIq+wmWRh3qhihmSbgCQKnn8NFFd3lCcS5LLX63PmB4dqz1P34lcFypCVdqj/QZ ihRQ== X-Gm-Message-State: AKaTC00cjX7uQmSvuWrVsY2MTrXkNms0kUp3JdKvGW5haNkmuwDSn7QFtucksocfEe+RVw== X-Received: by 10.99.244.17 with SMTP id g17mr5039270pgi.80.1479906144759; Wed, 23 Nov 2016 05:02:24 -0800 (PST) Received: from cavium-Vostro-2520.caveonetworks.com ([111.93.218.67]) by smtp.gmail.com with ESMTPSA id a24sm36838849pfh.57.2016.11.23.05.02.22 (version=TLS1_1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 23 Nov 2016 05:02:24 -0800 (PST) From: vijay.kilari@gmail.com To: marc.zyngier@arm.com, christoffer.dall@linaro.org, peter.maydell@linaro.org Subject: [PATCH v9 05/11] arm/arm64: vgic: Introduce VENG0 and VENG1 fields to vmcr struct Date: Wed, 23 Nov 2016 18:31:52 +0530 Message-Id: <1479906118-15832-6-git-send-email-vijay.kilari@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1479906118-15832-1-git-send-email-vijay.kilari@gmail.com> References: <1479906118-15832-1-git-send-email-vijay.kilari@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161123_050245_970752_22ACFAE4 X-CRM114-Status: GOOD ( 14.23 ) 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: p.fedin@samsung.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, Vijaya Kumar K MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Vijaya Kumar K ICC_VMCR_EL2 supports virtual access to ICC_IGRPEN1_EL1.Enable and ICC_IGRPEN0_EL1.Enable fields. Add grpen0 and grpen1 member variables to struct vmcr to support read and write of these fields. Also refactor vgic_set_vmcr and vgic_get_vmcr() code. Drop ICH_VMCR_CTLR_SHIFT and ICH_VMCR_CTLR_MASK macros and instead use ICH_VMCR_EOI* and ICH_VMCR_CBPR* macros . Signed-off-by: Vijaya Kumar K Reviewed-by: Christoffer Dall --- include/linux/irqchip/arm-gic-v3.h | 2 -- virt/kvm/arm/vgic/vgic-mmio-v2.c | 16 ---------------- virt/kvm/arm/vgic/vgic-mmio.c | 16 ++++++++++++++++ virt/kvm/arm/vgic/vgic-v3.c | 22 ++++++++++++++++++++-- virt/kvm/arm/vgic/vgic.h | 5 +++++ 5 files changed, 41 insertions(+), 20 deletions(-) diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index b4f8287..406fc3e 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -404,8 +404,6 @@ #define ICH_HCR_EN (1 << 0) #define ICH_HCR_UIE (1 << 1) -#define ICH_VMCR_CTLR_SHIFT 0 -#define ICH_VMCR_CTLR_MASK (0x21f << ICH_VMCR_CTLR_SHIFT) #define ICH_VMCR_CBPR_SHIFT 4 #define ICH_VMCR_CBPR_MASK (1 << ICH_VMCR_CBPR_SHIFT) #define ICH_VMCR_EOIM_SHIFT 9 diff --git a/virt/kvm/arm/vgic/vgic-mmio-v2.c b/virt/kvm/arm/vgic/vgic-mmio-v2.c index 2cb04b7..ad353b5 100644 --- a/virt/kvm/arm/vgic/vgic-mmio-v2.c +++ b/virt/kvm/arm/vgic/vgic-mmio-v2.c @@ -212,22 +212,6 @@ static void vgic_mmio_write_sgipends(struct kvm_vcpu *vcpu, } } -static void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) -{ - if (kvm_vgic_global_state.type == VGIC_V2) - vgic_v2_set_vmcr(vcpu, vmcr); - else - vgic_v3_set_vmcr(vcpu, vmcr); -} - -static void vgic_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) -{ - if (kvm_vgic_global_state.type == VGIC_V2) - vgic_v2_get_vmcr(vcpu, vmcr); - else - vgic_v3_get_vmcr(vcpu, vmcr); -} - #define GICC_ARCH_VERSION_V2 0x2 /* These are for userland accesses only, there is no guest-facing emulation. */ diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c index 0d1bc98..f81e0e5 100644 --- a/virt/kvm/arm/vgic/vgic-mmio.c +++ b/virt/kvm/arm/vgic/vgic-mmio.c @@ -416,6 +416,22 @@ int vgic_validate_mmio_region_addr(struct kvm_device *dev, return -ENXIO; } +void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) +{ + if (kvm_vgic_global_state.type == VGIC_V2) + vgic_v2_set_vmcr(vcpu, vmcr); + else + vgic_v3_set_vmcr(vcpu, vmcr); +} + +void vgic_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) +{ + if (kvm_vgic_global_state.type == VGIC_V2) + vgic_v2_get_vmcr(vcpu, vmcr); + else + vgic_v3_get_vmcr(vcpu, vmcr); +} + /* * kvm_mmio_read_buf() returns a value in a format where it can be converted * to a byte array and be directly observed as the guest wanted it to appear diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c index 9f0dae3..a3ff04b 100644 --- a/virt/kvm/arm/vgic/vgic-v3.c +++ b/virt/kvm/arm/vgic/vgic-v3.c @@ -175,10 +175,19 @@ void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcrp) { u32 vmcr; - vmcr = (vmcrp->ctlr << ICH_VMCR_CTLR_SHIFT) & ICH_VMCR_CTLR_MASK; + /* + * Ignore the FIQen bit, because GIC emulation always implies + * SRE=1 which means the vFIQEn bit is also RES1. + */ + vmcr = (vmcrp->ctlr & ICC_CTLR_EL1_EOImode_MASK) >> + ICC_CTLR_EL1_EOImode_SHIFT; + vmcr = (vmcr << ICH_VMCR_EOIM_SHIFT) & ICH_VMCR_EOIM_MASK; + vmcr |= (vmcrp->ctlr << ICH_VMCR_CBPR_SHIFT) & ICH_VMCR_CBPR_MASK; vmcr |= (vmcrp->abpr << ICH_VMCR_BPR1_SHIFT) & ICH_VMCR_BPR1_MASK; vmcr |= (vmcrp->bpr << ICH_VMCR_BPR0_SHIFT) & ICH_VMCR_BPR0_MASK; vmcr |= (vmcrp->pmr << ICH_VMCR_PMR_SHIFT) & ICH_VMCR_PMR_MASK; + vmcr |= (vmcrp->grpen0 << ICH_VMCR_ENG0_SHIFT) & ICH_VMCR_ENG0_MASK; + vmcr |= (vmcrp->grpen1 << ICH_VMCR_ENG1_SHIFT) & ICH_VMCR_ENG1_MASK; vcpu->arch.vgic_cpu.vgic_v3.vgic_vmcr = vmcr; } @@ -187,10 +196,19 @@ void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcrp) { u32 vmcr = vcpu->arch.vgic_cpu.vgic_v3.vgic_vmcr; - vmcrp->ctlr = (vmcr & ICH_VMCR_CTLR_MASK) >> ICH_VMCR_CTLR_SHIFT; + /* + * Ignore the FIQen bit, because GIC emulation always implies + * SRE=1 which means the vFIQEn bit is also RES1. + */ + vmcrp->ctlr = (vmcr & ICH_VMCR_EOIM_MASK) >> ICH_VMCR_EOIM_SHIFT; + vmcrp->ctlr = (vmcrp->ctlr << ICC_CTLR_EL1_EOImode_SHIFT) & + ICC_CTLR_EL1_EOImode_MASK; + vmcrp->ctlr |= (vmcr & ICH_VMCR_CBPR_MASK) >> ICH_VMCR_CBPR_SHIFT; vmcrp->abpr = (vmcr & ICH_VMCR_BPR1_MASK) >> ICH_VMCR_BPR1_SHIFT; vmcrp->bpr = (vmcr & ICH_VMCR_BPR0_MASK) >> ICH_VMCR_BPR0_SHIFT; vmcrp->pmr = (vmcr & ICH_VMCR_PMR_MASK) >> ICH_VMCR_PMR_SHIFT; + vmcrp->grpen0 = (vmcr & ICH_VMCR_ENG0_MASK) >> ICH_VMCR_ENG0_SHIFT; + vmcrp->grpen1 = (vmcr & ICH_VMCR_ENG1_MASK) >> ICH_VMCR_ENG1_SHIFT; } #define INITIAL_PENDBASER_VALUE \ diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h index 91f58b2..9232791 100644 --- a/virt/kvm/arm/vgic/vgic.h +++ b/virt/kvm/arm/vgic/vgic.h @@ -78,6 +78,9 @@ struct vgic_vmcr { u32 abpr; u32 bpr; u32 pmr; + /* Below member variable are valid only for GICv3 */ + u32 grpen0; + u32 grpen1; }; struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu, @@ -138,6 +141,8 @@ int vgic_v3_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write, int vgic_v3_redist_uaccess(struct kvm_vcpu *vcpu, bool is_write, int offset, u32 *val); int kvm_register_vgic_device(unsigned long type); +void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); +void vgic_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); int vgic_lazy_init(struct kvm *kvm); int vgic_init(struct kvm *kvm);