From patchwork Thu May 23 10:34:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudeep Holla X-Patchwork-Id: 10957327 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E44A713AD for ; Thu, 23 May 2019 10:36:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9A8728458 for ; Thu, 23 May 2019 10:36:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BD67628468; Thu, 23 May 2019 10:36:59 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7A07628458 for ; Thu, 23 May 2019 10:36:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729966AbfEWKfV (ORCPT ); Thu, 23 May 2019 06:35:21 -0400 Received: from foss.arm.com ([217.140.101.70]:42996 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727466AbfEWKfV (ORCPT ); Thu, 23 May 2019 06:35:21 -0400 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 E3737341; Thu, 23 May 2019 03:35:20 -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 CECA73F718; Thu, 23 May 2019 03:35:18 -0700 (PDT) From: Sudeep Holla To: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Cc: Sudeep Holla , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Christoffer Dall , Marc Zyngier , James Morse , Suzuki K Pouloze , Catalin Marinas , Will Deacon , Julien Thierry Subject: [PATCH 00/15] arm64: KVM: add SPE profiling support for guest Date: Thu, 23 May 2019 11:34:47 +0100 Message-Id: <20190523103502.25925-1-sudeep.holla@arm.com> X-Mailer: git-send-email 2.17.1 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hi, This series implements support for allowing KVM guests to use the Arm Statistical Profiling Extension (SPE). The patches are also available on a branch[1]. The last two extra patches are for the kvmtool if someone wants to play with it. Regards, Sudeep v1->v2: - Rebased on v5.2-rc1 - Adjusted sysreg_elx_s macros with merged clang build support [1] git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git kvm_spe Sudeep Holla (15): KVM: arm64: add {read,write}_sysreg_elx_s versions for new registers dt-bindings: ARM SPE: highlight the need for PPI partitions on heterogeneous systems arm64: KVM: reset E2PB correctly in MDCR_EL2 when exiting the guest(VHE) arm64: KVM: define SPE data structure for each vcpu arm64: KVM: add access handler for SPE system registers arm64: KVM/VHE: enable the use PMSCR_EL12 on VHE systems arm64: KVM: split debug save restore across vm/traps activation arm64: KVM/debug: drop pmscr_el1 and use sys_regs[PMSCR_EL1] in kvm_cpu_context arm64: KVM: add support to save/restore SPE profiling buffer controls arm64: KVM: enable conditional save/restore full SPE profiling buffer controls arm64: KVM/debug: trap all accesses to SPE controls at EL1 KVM: arm64: add a new vcpu device control group for SPEv1 KVM: arm64: enable SPE support KVMTOOL: update_headers: Sync kvm UAPI headers with linux v5.2-rc1 KVMTOOL: kvm: add a vcpu feature for SPEv1 support .../devicetree/bindings/arm/spe-pmu.txt | 5 +- Documentation/virtual/kvm/devices/vcpu.txt | 28 +++ arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts | 185 +++++++++++------- arch/arm64/configs/defconfig | 6 + arch/arm64/include/asm/kvm_host.h | 19 +- arch/arm64/include/asm/kvm_hyp.h | 26 ++- arch/arm64/include/uapi/asm/kvm.h | 4 + arch/arm64/kvm/Kconfig | 7 + arch/arm64/kvm/Makefile | 1 + arch/arm64/kvm/guest.c | 9 + arch/arm64/kvm/hyp/debug-sr.c | 98 +++++++--- arch/arm64/kvm/hyp/switch.c | 18 +- arch/arm64/kvm/reset.c | 3 + arch/arm64/kvm/sys_regs.c | 35 ++++ include/kvm/arm_spe.h | 71 +++++++ include/uapi/linux/kvm.h | 1 + virt/kvm/arm/arm.c | 5 + virt/kvm/arm/spe.c | 163 +++++++++++++++ 18 files changed, 570 insertions(+), 114 deletions(-) create mode 100644 include/kvm/arm_spe.h create mode 100644 virt/kvm/arm/spe.c --- 2.17.1