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=-9.0 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=unavailable 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 1AC11C46460 for ; Thu, 23 May 2019 10:35:40 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id CF3D22175B for ; Thu, 23 May 2019 10:35:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF3D22175B 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 8B2D04A319; Thu, 23 May 2019 06:35:35 -0400 (EDT) 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 boXRQ0GFW3hu; Thu, 23 May 2019 06:35:33 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id A50264A36B; Thu, 23 May 2019 06:35:33 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 4FF2D4A4E8 for ; Thu, 23 May 2019 06:35:32 -0400 (EDT) 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 dSnWyZUCSa3T for ; Thu, 23 May 2019 06:35:30 -0400 (EDT) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D4DC24A319 for ; Thu, 23 May 2019 06:35:30 -0400 (EDT) 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 560BA341; Thu, 23 May 2019 03:35:30 -0700 (PDT) Received: from usa.arm.com (e107155-lin.cambridge.arm.com [10.1.196.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 427FE3F718; Thu, 23 May 2019 03:35:28 -0700 (PDT) From: Sudeep Holla To: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 04/15] arm64: KVM: define SPE data structure for each vcpu Date: Thu, 23 May 2019 11:34:51 +0100 Message-Id: <20190523103502.25925-5-sudeep.holla@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190523103502.25925-1-sudeep.holla@arm.com> References: <20190523103502.25925-1-sudeep.holla@arm.com> Cc: kvm@vger.kernel.org, Marc Zyngier , Catalin Marinas , Will Deacon , linux-kernel@vger.kernel.org, Sudeep Holla 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: , MIME-Version: 1.0 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 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 --- arch/arm64/include/asm/kvm_host.h | 2 ++ arch/arm64/kvm/Kconfig | 7 +++++++ include/kvm/arm_spe.h | 18 ++++++++++++++++++ 3 files changed, 27 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 2a8d3f8ca22c..611a4884fb6c 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -46,6 +46,7 @@ #include #include #include +#include #define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS @@ -304,6 +305,7 @@ 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 a67121d419a2..3e178894ddd8 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -33,6 +33,7 @@ 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 @@ -57,6 +58,12 @@ 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..8c96bdfad6ac --- /dev/null +++ b/include/kvm/arm_spe.h @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 ARM Ltd. + */ + +#ifndef __ASM_ARM_KVM_SPE_H +#define __ASM_ARM_KVM_SPE_H + +#include +#include + +struct kvm_spe { + int irq; + bool ready; /* indicates that SPE KVM instance is ready for use */ + bool created; /* SPE KVM instance is created, may not be ready yet */ +}; + +#endif /* __ASM_ARM_KVM_SPE_H */ -- 2.17.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm