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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30A19C4332F for ; Thu, 11 Nov 2021 02:09:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1142561073 for ; Thu, 11 Nov 2021 02:09:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234399AbhKKCMR (ORCPT ); Wed, 10 Nov 2021 21:12:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234265AbhKKCL4 (ORCPT ); Wed, 10 Nov 2021 21:11:56 -0500 Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D818C0432CC for ; Wed, 10 Nov 2021 18:08:07 -0800 (PST) Received: by mail-pj1-x104a.google.com with SMTP id x6-20020a17090a6c0600b001a724a5696cso2077783pjj.6 for ; Wed, 10 Nov 2021 18:08:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=4wLzPjAo6SC+6dg2XS8LE13lS3wGpQbHkLiaUdVh1zk=; b=MuegJeAyDDNZ2tSTgnRGgC7IKnaetIrZypWHgoI7HXfYfypgKJOXeWWLy35dN1C9Kq TYdkeXtBhBOimwcZ3top4kHa71CLV6qdvRNUhm81hZ5K3i6YVl/7AXor+8dNYxvAPJer ZwGoTfRUt1iBgIiACbYvtCaYyKTtXhPXR+X+RVc6NhZKJJXGXYjtiG/SPUOKx15Mns+w h7LMujRE3QFVnTWofLpidFxhxt+qp0BXQN3PgH1ZjZAnDhIuNVlz9u1BvqFo2bLBUTc6 Fb2NGscm3LpQizlsfcqGjFJsDCfeEgXwB7noSeS86XmgLfWQWeulkCp9qWhLyPOP5PC4 rOAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=4wLzPjAo6SC+6dg2XS8LE13lS3wGpQbHkLiaUdVh1zk=; b=08aiukbEFBRFq/QgedPb3uroDMSm450pR4kFOXCFNfu7N6H+aNZg3rxeEHfATsZg2c +8tb7p0vAu+pj0q0fn93QjyrKzuOcJLPskVP9dsEOmgrIq9H7dFW1ZH8cl0Qe1FgOQeC Sk84MBmoaVdd8+fR/h6f+ZmjGRwZN5HXyr0aTb1t1tgUhZQ3wyU5inFLovG4zsKk1EmJ BptMSisNG7c2IosrMxB+CmVIWBZZIeBb1yhbPmPxo0qpLHgmk2SlHTB07DdV1NBZDRv5 DXjQysHbd9td/hXRFrFVFRNJsf/KG6Gi+qr0xwFUBocJrmNO3pSqILwMIryjbqIca0Aa 1xyA== X-Gm-Message-State: AOAM533gJGrMUtt9LWCwTfqUCihWDu8LaDWwIwKLIhsL36O+XpPlUKOq j/kfqwUfsG787I7rt8mnqdnE2iSQfgg= X-Google-Smtp-Source: ABdhPJzOf3D2n0+h+qFn/cUAHxeQwCrLXPititoZgPJ6cdaqRRoa4xxgHhA3Yjjnbd9PcZR94r6p632KxHo= X-Received: from seanjc.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3e5]) (user=seanjc job=sendgmr) by 2002:a62:16c7:0:b0:49f:a6cc:c77d with SMTP id 190-20020a6216c7000000b0049fa6ccc77dmr3410123pfw.23.1636596486947; Wed, 10 Nov 2021 18:08:06 -0800 (PST) Reply-To: Sean Christopherson Date: Thu, 11 Nov 2021 02:07:37 +0000 In-Reply-To: <20211111020738.2512932-1-seanjc@google.com> Message-Id: <20211111020738.2512932-17-seanjc@google.com> Mime-Version: 1.0 References: <20211111020738.2512932-1-seanjc@google.com> X-Mailer: git-send-email 2.34.0.rc0.344.g81b53c2807-goog Subject: [PATCH v4 16/17] KVM: arm64: Drop perf.c and fold its tiny bits of code into arm.c From: Sean Christopherson To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Will Deacon , Mark Rutland , Russell King , Marc Zyngier , Catalin Marinas , Guo Ren , Nick Hu , Greentime Hu , Vincent Chen , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Borislav Petkov , Dave Hansen , x86@kernel.org, Paolo Bonzini , Boris Ostrovsky , Juergen Gross Cc: Alexander Shishkin , Jiri Olsa , Namhyung Kim , James Morse , Alexandru Elisei , Suzuki K Poulose , "H. Peter Anvin" , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Stefano Stabellini , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org, Artem Kashkanov , Like Xu , Like Xu , Zhu Lingshan Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Call KVM's (un)register perf callbacks helpers directly from arm.c and delete perf.c No functional change intended. Signed-off-by: Sean Christopherson --- arch/arm64/include/asm/kvm_host.h | 3 --- arch/arm64/kvm/Makefile | 2 +- arch/arm64/kvm/arm.c | 5 +++-- arch/arm64/kvm/perf.c | 22 ---------------------- 4 files changed, 4 insertions(+), 28 deletions(-) delete mode 100644 arch/arm64/kvm/perf.c diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 72e2afe6e8e3..824040b174ab 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -675,9 +675,6 @@ unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len); int kvm_handle_mmio_return(struct kvm_vcpu *vcpu); int io_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa); -void kvm_perf_init(void); -void kvm_perf_teardown(void); - /* * Returns true if a Performance Monitoring Interrupt (PMI), a.k.a. perf event, * arrived in guest context. For arm64, any event that arrives while a vCPU is diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile index 989bb5dad2c8..0bcc378b7961 100644 --- a/arch/arm64/kvm/Makefile +++ b/arch/arm64/kvm/Makefile @@ -12,7 +12,7 @@ obj-$(CONFIG_KVM) += hyp/ kvm-y := $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o \ $(KVM)/vfio.o $(KVM)/irqchip.o $(KVM)/binary_stats.o \ - arm.o mmu.o mmio.o psci.o perf.o hypercalls.o pvtime.o \ + arm.o mmu.o mmio.o psci.o hypercalls.o pvtime.o \ inject_fault.o va_layout.o handle_exit.o \ guest.o debug.o reset.o sys_regs.o \ vgic-sys-reg-v3.o fpsimd.o pmu.o \ diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 93c952375f3b..8d18a64a72f1 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -1776,7 +1776,8 @@ static int init_subsystems(void) if (err) goto out; - kvm_perf_init(); + kvm_register_perf_callbacks(NULL); + kvm_sys_reg_table_init(); out: @@ -2164,7 +2165,7 @@ int kvm_arch_init(void *opaque) /* NOP: Compiling as a module not supported */ void kvm_arch_exit(void) { - kvm_perf_teardown(); + kvm_unregister_perf_callbacks(); } static int __init early_kvm_mode_cfg(char *arg) diff --git a/arch/arm64/kvm/perf.c b/arch/arm64/kvm/perf.c deleted file mode 100644 index 52cfab253c65..000000000000 --- a/arch/arm64/kvm/perf.c +++ /dev/null @@ -1,22 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Based on the x86 implementation. - * - * Copyright (C) 2012 ARM Ltd. - * Author: Marc Zyngier - */ - -#include -#include - -#include - -void kvm_perf_init(void) -{ - kvm_register_perf_callbacks(NULL); -} - -void kvm_perf_teardown(void) -{ - kvm_unregister_perf_callbacks(); -} -- 2.34.0.rc0.344.g81b53c2807-goog