From patchwork Tue Jun 14 14:13:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 9175949 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 ACF4160772 for ; Tue, 14 Jun 2016 14:29:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9E284265B9 for ; Tue, 14 Jun 2016 14:29:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 926432824A; Tue, 14 Jun 2016 14:29:53 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 479C3265B9 for ; Tue, 14 Jun 2016 14:29:52 +0000 (UTC) Received: from localhost ([::1]:35682 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bCpLk-0001vT-4I for patchwork-qemu-devel@patchwork.kernel.org; Tue, 14 Jun 2016 10:29:52 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42515) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bCp6Z-0003JE-Of for qemu-devel@nongnu.org; Tue, 14 Jun 2016 10:14:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bCp6W-0007zC-PT for qemu-devel@nongnu.org; Tue, 14 Jun 2016 10:14:10 -0400 Received: from orth.archaic.org.uk ([2001:8b0:1d0::2]:57706) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bCp6W-0007yr-Hc for qemu-devel@nongnu.org; Tue, 14 Jun 2016 10:14:08 -0400 Received: from pm215 by orth.archaic.org.uk with local (Exim 4.84_2) (envelope-from ) id 1bCp6U-0006CY-Jz for qemu-devel@nongnu.org; Tue, 14 Jun 2016 15:14:06 +0100 From: Peter Maydell To: qemu-devel@nongnu.org Date: Tue, 14 Jun 2016 15:13:36 +0100 Message-Id: <1465913645-19346-2-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1465913645-19346-1-git-send-email-peter.maydell@linaro.org> References: <1465913645-19346-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:8b0:1d0::2 Subject: [Qemu-devel] [PULL 01/30] target-arm: kvm64: set guest PMUv3 feature bit if supported X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Shannon Zhao Check if kvm supports guest PMUv3. If so, set the corresponding feature bit for vcpu. Signed-off-by: Shannon Zhao Reviewed-by: Andrew Jones Message-id: 1465267577-1808-2-git-send-email-zhaoshenglong@huawei.com Signed-off-by: Peter Maydell --- target-arm/cpu.h | 2 ++ target-arm/kvm64.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 17d8051..942aa36 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -572,6 +572,8 @@ struct ARMCPU { bool powered_off; /* CPU has security extension */ bool has_el3; + /* CPU has PMU (Performance Monitor Unit) */ + bool has_pmu; /* CPU has memory protection unit */ bool has_mpu; diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c index e2a34f6..75383c8 100644 --- a/target-arm/kvm64.c +++ b/target-arm/kvm64.c @@ -461,6 +461,11 @@ int kvm_arch_init_vcpu(CPUState *cs) if (!arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_EL1_32BIT; } + if (kvm_irqchip_in_kernel() && + kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PMU_V3)) { + cpu->has_pmu = true; + cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_PMU_V3; + } /* Do KVM_ARM_VCPU_INIT ioctl */ ret = kvm_arm_vcpu_init(cs);