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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 B8150C432BE for ; Fri, 27 Aug 2021 00:58:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A2AB460FD9 for ; Fri, 27 Aug 2021 00:58:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244148AbhH0A7j (ORCPT ); Thu, 26 Aug 2021 20:59:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244033AbhH0A7F (ORCPT ); Thu, 26 Aug 2021 20:59:05 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1A64BC0611F9 for ; Thu, 26 Aug 2021 17:57:57 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id d78-20020a256851000000b00598b2a660e2so4907604ybc.6 for ; Thu, 26 Aug 2021 17:57:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=O3P/C2+r50j2qd2oZl4HIFqUJ1Gm6eQIurE1pthLu88=; b=KoGI0t2ANmOACIY8bQhuBH4FJbrSHsRwhYJXWmn01ufiEJZVk4tPOEhaZ6T1MAQL+U jhUGDn7yZArl2k29+8gFqfCF2DSg2n6fTQ6je+tOvHWwtuk6IOGhYE1XQmYmAQV0Z6yb UcRXDhGukzYa0e3OogJgHIniy20AUzkgcDYnuJ9TMbdSfPm19k9DAbSEVKXLmzcP7bku dkqNoqFL3rJ6iAJ27Dy3HXfxWITTJ68h7TnziapcFth9ZxiSCsQJGqvRdjvidglqsZgx 4yCjuWco92qzMYV8AJs3vnXk8sqdZ/Z/v4yFDjKSCTqWPBnhz4PL5zWola/ctdZ9nHLd axcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=O3P/C2+r50j2qd2oZl4HIFqUJ1Gm6eQIurE1pthLu88=; b=anmTIga/Cbrp3uVQjGGxkhPFN/PXFjIuiu2ijgP0TrHEcAxF707T/ldTUlckzblyWo UH0zpjNukp/rxjUh09h+W4rT15P8jvtxNAeDHlFQfzoHRav7mqnOvXmTtn4XPJi46MKQ //43DiH82V5J/dBVtD71vdD5dKSxFvM3Psus1WO1JdWWBwtGCAq+8S9+324PUMto8jkO ug/XjqGKSEqTHNrDAoTkMknOBfc0G7V9VoP7eTxNrbUcrRDUq8PmQZBlFM6Ubn4XqTcN G8rA3dj9Fqyg6nUzWji3pUhGfexDkTQpfuPtLTzbJur6r0eEhGJXgDByHICwVCw5xme2 2MFw== X-Gm-Message-State: AOAM533gE5GWo2C8r9cf3OANhcFzgvlv6hj69EQzCYsEU6juEA5c9dgG UkKZ3z7MOsgAxjKC6KmkWiakYQsBieo= X-Google-Smtp-Source: ABdhPJyKjk6geoVg3b6/+yDfPSeW/L1PMiXY41SolyC47I84TPxrPvrL+bKgY05p4LEuynGQ+EFAFv5UkSk= X-Received: from seanjc798194.pdx.corp.google.com ([2620:15c:90:200:c16c:db05:96b2:1475]) (user=seanjc job=sendgmr) by 2002:a25:dcd3:: with SMTP id y202mr2039489ybe.161.1630025876285; Thu, 26 Aug 2021 17:57:56 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 26 Aug 2021 17:57:15 -0700 In-Reply-To: <20210827005718.585190-1-seanjc@google.com> Message-Id: <20210827005718.585190-13-seanjc@google.com> Mime-Version: 1.0 References: <20210827005718.585190-1-seanjc@google.com> X-Mailer: git-send-email 2.33.0.259.gc128427fd7-goog Subject: [PATCH 12/15] KVM: arm64: Convert to the generic perf callbacks From: Sean Christopherson To: Will Deacon , Mark Rutland , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Catalin Marinas , Marc Zyngier , Guo Ren , Nick Hu , Greentime Hu , Vincent Chen , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Borislav Petkov , 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 , Zhu Lingshan Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Drop arm64's version of the callbacks in favor of the callbacks provided by generic KVM, which are semantically identical. Implement the "get ip" hook as needed. Signed-off-by: Sean Christopherson --- arch/arm64/include/asm/kvm_host.h | 6 +---- arch/arm64/kvm/arm.c | 5 ++++ arch/arm64/kvm/perf.c | 38 ------------------------------- 3 files changed, 6 insertions(+), 43 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 007c38d77fd9..12e8d789e1ac 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -673,11 +673,7 @@ int io_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa); void kvm_perf_init(void); #ifdef CONFIG_PERF_EVENTS -void kvm_register_perf_callbacks(void); -static inline void kvm_unregister_perf_callbacks(void) -{ - __perf_unregister_guest_info_callbacks(); -} +#define __KVM_WANT_PERF_CALLBACKS #else static inline void kvm_register_perf_callbacks(void) {} static inline void kvm_unregister_perf_callbacks(void) {} diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index ec386971030d..dfc8078dd4f9 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -503,6 +503,11 @@ bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) return vcpu_mode_priv(vcpu); } +unsigned long kvm_arch_vcpu_get_ip(struct kvm_vcpu *vcpu) +{ + return *vcpu_pc(vcpu); +} + /* Just ensure a guest exit from a particular CPU */ static void exit_vm_noop(void *info) { diff --git a/arch/arm64/kvm/perf.c b/arch/arm64/kvm/perf.c index 2556b0a3b096..ad9fdc2f2f70 100644 --- a/arch/arm64/kvm/perf.c +++ b/arch/arm64/kvm/perf.c @@ -13,44 +13,6 @@ DEFINE_STATIC_KEY_FALSE(kvm_arm_pmu_available); -#ifdef CONFIG_PERF_EVENTS -static int kvm_is_in_guest(void) -{ - return true; -} - -static int kvm_is_user_mode(void) -{ - struct kvm_vcpu *vcpu = kvm_get_running_vcpu(); - - if (WARN_ON_ONCE(!vcpu)) - return 0; - - return !vcpu_mode_priv(vcpu); -} - -static unsigned long kvm_get_guest_ip(void) -{ - struct kvm_vcpu *vcpu = kvm_get_running_vcpu(); - - if (WARN_ON_ONCE(!vcpu)) - return 0; - - return *vcpu_pc(vcpu); -} - -static struct perf_guest_info_callbacks kvm_guest_cbs = { - .is_in_guest = kvm_is_in_guest, - .is_user_mode = kvm_is_user_mode, - .get_guest_ip = kvm_get_guest_ip, -}; - -void kvm_register_perf_callbacks(void) -{ - __perf_register_guest_info_callbacks(&kvm_guest_cbs); -} -#endif /* CONFIG_PERF_EVENTS*/ - void kvm_perf_init(void) { if (kvm_pmu_probe_pmuver() != 0xf && !is_protected_kvm_enabled()) -- 2.33.0.259.gc128427fd7-goog