From patchwork Tue Dec 6 12:58:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chenxiang X-Patchwork-Id: 13065725 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BFDC7C4708C for ; Tue, 6 Dec 2022 12:28:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231530AbiLFM2A (ORCPT ); Tue, 6 Dec 2022 07:28:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229457AbiLFM16 (ORCPT ); Tue, 6 Dec 2022 07:27:58 -0500 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A32563AB for ; Tue, 6 Dec 2022 04:27:55 -0800 (PST) Received: from kwepemi500016.china.huawei.com (unknown [172.30.72.53]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4NRKNR1DRRzJp6k; Tue, 6 Dec 2022 20:24:23 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by kwepemi500016.china.huawei.com (7.221.188.220) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 6 Dec 2022 20:27:52 +0800 From: chenxiang To: , , CC: , , Xiang Chen Subject: [RFC PATCH 2/2] KVM: arm64: Enable __KVM_HAVE_ARCH_VCPU_DEBUGFS Date: Tue, 6 Dec 2022 20:58:28 +0800 Message-ID: <1670331508-67322-3-git-send-email-chenxiang66@hisilicon.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1670331508-67322-1-git-send-email-chenxiang66@hisilicon.com> References: <1670331508-67322-1-git-send-email-chenxiang66@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemi500016.china.huawei.com (7.221.188.220) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Xiang Chen Sometimes statistical data of vcpus is helpful for locating some issues, so enable vcpu debugfs for ARM64. Signed-off-by: Xiang Chen --- arch/arm64/include/asm/kvm_host.h | 1 + arch/arm64/kvm/arm.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 35a159d..538da55 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -53,6 +53,7 @@ #define KVM_HAVE_MMU_RWLOCK +#define __KVM_HAVE_ARCH_VCPU_DEBUGFS /* * Mode of operation configurable with kvm-arm.mode early param. * See Documentation/admin-guide/kernel-parameters.txt for more information. diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 9c5573b..d230dfc 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -526,6 +526,10 @@ bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) return vcpu_mode_priv(vcpu); } +void kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu, struct dentry *debugfs_dentry) +{ +} + #ifdef CONFIG_GUEST_PERF_EVENTS unsigned long kvm_arch_vcpu_get_ip(struct kvm_vcpu *vcpu) {