From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67A43C47409 for ; Fri, 20 Dec 2019 14:30:44 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 252BC24689 for ; Fri, 20 Dec 2019 14:30:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 252BC24689 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B2B964A7FF; Fri, 20 Dec 2019 09:30:43 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu 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 EkEjujGYpGx4; Fri, 20 Dec 2019 09:30:42 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 657DB4AC84; Fri, 20 Dec 2019 09:30:42 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 8C2C64A968 for ; Fri, 20 Dec 2019 09:30:41 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu 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 qzf6pgvjzl7f for ; Fri, 20 Dec 2019 09:30:40 -0500 (EST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 34FDE4AC65 for ; Fri, 20 Dec 2019 09:30:39 -0500 (EST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DF45611D4; Fri, 20 Dec 2019 06:30:38 -0800 (PST) Received: from e119886-lin.cambridge.arm.com (unknown [10.37.6.20]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1120D3F718; Fri, 20 Dec 2019 06:30:36 -0800 (PST) From: Andrew Murray To: Marc Zyngier , Catalin Marinas , Will Deacon Subject: [PATCH v2 03/18] arm64: KVM: define SPE data structure for each vcpu Date: Fri, 20 Dec 2019 14:30:10 +0000 Message-Id: <20191220143025.33853-4-andrew.murray@arm.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191220143025.33853-1-andrew.murray@arm.com> References: <20191220143025.33853-1-andrew.murray@arm.com> MIME-Version: 1.0 Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Sudeep Holla , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu From: Sudeep Holla In order to support virtual SPE for guest, so define some basic structs. This features depends on host having hardware with SPE support. Since we can support this only on ARM64, add a separate config symbol for the same. Signed-off-by: Sudeep Holla [ Add irq_level, rename irq to irq_num for kvm_spe ] Signed-off-by: Andrew Murray --- arch/arm64/include/asm/kvm_host.h | 2 ++ arch/arm64/kvm/Kconfig | 7 +++++++ include/kvm/arm_spe.h | 19 +++++++++++++++++++ 3 files changed, 28 insertions(+) create mode 100644 include/kvm/arm_spe.h diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index c61260cf63c5..f5dcff912645 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -35,6 +35,7 @@ #include #include #include +#include #define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS @@ -302,6 +303,7 @@ struct kvm_vcpu_arch { struct vgic_cpu vgic_cpu; struct arch_timer_cpu timer_cpu; struct kvm_pmu pmu; + struct kvm_spe spe; /* * Anything that is not used directly from assembly code goes diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index a475c68cbfec..af5be2c57dcb 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -35,6 +35,7 @@ config KVM select HAVE_KVM_EVENTFD select HAVE_KVM_IRQFD select KVM_ARM_PMU if HW_PERF_EVENTS + select KVM_ARM_SPE if (HW_PERF_EVENTS && ARM_SPE_PMU) select HAVE_KVM_MSI select HAVE_KVM_IRQCHIP select HAVE_KVM_IRQ_ROUTING @@ -61,6 +62,12 @@ config KVM_ARM_PMU Adds support for a virtual Performance Monitoring Unit (PMU) in virtual machines. +config KVM_ARM_SPE + bool + ---help--- + Adds support for a virtual Statistical Profiling Extension(SPE) in + virtual machines. + config KVM_INDIRECT_VECTORS def_bool KVM && (HARDEN_BRANCH_PREDICTOR || HARDEN_EL2_VECTORS) diff --git a/include/kvm/arm_spe.h b/include/kvm/arm_spe.h new file mode 100644 index 000000000000..48d118fdb174 --- /dev/null +++ b/include/kvm/arm_spe.h @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 ARM Ltd. + */ + +#ifndef __ASM_ARM_KVM_SPE_H +#define __ASM_ARM_KVM_SPE_H + +#include +#include + +struct kvm_spe { + int irq_num; + bool ready; /* indicates that SPE KVM instance is ready for use */ + bool created; /* SPE KVM instance is created, may not be ready yet */ + bool irq_level; +}; + +#endif /* __ASM_ARM_KVM_SPE_H */ -- 2.21.0 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm