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 A5A25C2B9F4 for ; Mon, 14 Jun 2021 21:22:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BC716128B for ; Mon, 14 Jun 2021 21:22:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235359AbhFNVYX (ORCPT ); Mon, 14 Jun 2021 17:24:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34322 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235355AbhFNVYV (ORCPT ); Mon, 14 Jun 2021 17:24:21 -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 542BFC0613A3 for ; Mon, 14 Jun 2021 14:22:07 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id j190-20020a253cc70000b029054c72781aa2so15593295yba.9 for ; Mon, 14 Jun 2021 14:22:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=NzYx6sL/FI5Q8YsSaGuQJ/+eQQ0Uw6f0WLHoOI9nSZo=; b=Oq+ipc6RIRfxBNlq2YkI6+5X+UygC1zWHOU81YX8j6/f33tgMI4muGEKJbUo12Dte7 osUTYn3SpMYrCZ/tcrTVvWQIeaT4qEY/oIZ3wyRfP0t5SjvAncQz8OnxNuYYNTxQ5EIO xfrcCakNZEArzoE4dP1nuAJYK6mIX2IlvEje6JwOqwT+xchbgG6/Jht33V6WeDAYZ32A DOa+J+tDNgJuq9sYNakh9tt5rPNj0j4mnmEVoH99BWStuQXAXGDQkwKN1wmOuMbcIo6O 9UEIxOq02Wl7oFzye+taYXz15H4pxiftAWAY7VTmHcMcYk3a7UJEDLTUr98idfO6Xygc uoLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=NzYx6sL/FI5Q8YsSaGuQJ/+eQQ0Uw6f0WLHoOI9nSZo=; b=UqcUHnhg/6PUCPO2GMCQDcitMffI8uNTrMQ2dXgRCmRg6n32qTZp+17vpD11OhEA8B nIx8fqpkxC9SxDZuJzW1fWaILeOylPDQZGZHvf8YCMDcswVLNZ2bHKLOrkYQI7ElO16b ZqSAtOIqD6Ap82o7qHFT9c4KTVE5svuRJ3+8eoxAhTDduA7eW7y7RtcZLKyye41efXf1 OwYOHekykkqQ10kNJtmvIh2TEl6dioWKfbOhfD64HZJGOTN1dI2T82k5a9UrKBNtYkga d2il7zNmEJjw0Himpu4DUv4mFtDaXVNQLeuOfq+41k5jgZGIxIq5BsygHo5pWO/UT7B5 kM8Q== X-Gm-Message-State: AOAM531QQ6QaUXcokj14Urntwt7ts48y2K9G7czZVz6Fi5BCno7aSAMR IqJbmXc5JmahbWAvK1WSGkPtVBKgSGPXFrjefg== X-Google-Smtp-Source: ABdhPJy/5eRzUUecCQdCQn1kLX+tO4KMLEGaAwZFuuRNKkaL+5XUSrKGZ7w9opybAnjGUEZuR/0+v8YW96u00Ts+Eg== X-Received: from jgzg.c.googlers.com ([fda3:e722:ac3:10:7f:e700:c0a8:1acf]) (user=jingzhangos job=sendgmr) by 2002:a25:8191:: with SMTP id p17mr27324401ybk.405.1623705726474; Mon, 14 Jun 2021 14:22:06 -0700 (PDT) Date: Mon, 14 Jun 2021 21:21:55 +0000 In-Reply-To: <20210614212155.1670777-1-jingzhangos@google.com> Message-Id: <20210614212155.1670777-6-jingzhangos@google.com> Mime-Version: 1.0 References: <20210614212155.1670777-1-jingzhangos@google.com> X-Mailer: git-send-email 2.32.0.272.g935e593368-goog Subject: [PATCH v9 5/5] KVM: stats: Remove code duplication for binary and debugfs stats From: Jing Zhang To: KVM , KVMARM , LinuxMIPS , KVMPPC , LinuxS390 , Linuxkselftest , Paolo Bonzini , Marc Zyngier , James Morse , Julien Thierry , Suzuki K Poulose , Will Deacon , Huacai Chen , Aleksandar Markovic , Thomas Bogendoerfer , Paul Mackerras , Christian Borntraeger , Janosch Frank , David Hildenbrand , Cornelia Huck , Claudio Imbrenda , Sean Christopherson , Vitaly Kuznetsov , Jim Mattson , Peter Shier , Oliver Upton , David Rientjes , Emanuele Giuseppe Esposito , David Matlack , Ricardo Koller , Krish Sadhukhan , Fuad Tabba Cc: Jing Zhang Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org To remove code duplication, use the binary stats descriptors for debugfs interface for KVM stats. Then we only have one stats definitions for both binary and debugfs interface. Signed-off-by: Jing Zhang --- arch/arm64/kvm/guest.c | 16 ------ arch/mips/kvm/mips.c | 39 -------------- arch/powerpc/kvm/book3s.c | 33 ------------ arch/powerpc/kvm/booke.c | 25 --------- arch/s390/kvm/kvm-s390.c | 108 -------------------------------------- arch/x86/kvm/x86.c | 49 +---------------- include/linux/kvm_host.h | 43 +++++---------- include/uapi/linux/kvm.h | 4 +- virt/kvm/kvm_main.c | 104 ++++++++++++++++++++++++++---------- 9 files changed, 94 insertions(+), 327 deletions(-) diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 99842e29c2de..59486a9fef1a 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -66,22 +66,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("hvc_exit_stat", hvc_exit_stat), - VCPU_STAT("wfe_exit_stat", wfe_exit_stat), - VCPU_STAT("wfi_exit_stat", wfi_exit_stat), - VCPU_STAT("mmio_exit_user", mmio_exit_user), - VCPU_STAT("mmio_exit_kernel", mmio_exit_kernel), - VCPU_STAT("exits", exits), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - { NULL } -}; - static bool core_reg_offset_is_vreg(u64 off) { return off >= KVM_REG_ARM_CORE_REG(fp_regs.vregs) && diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 67404f0947aa..606fe3b47075 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -99,45 +99,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("wait", wait_exits), - VCPU_STAT("cache", cache_exits), - VCPU_STAT("signal", signal_exits), - VCPU_STAT("interrupt", int_exits), - VCPU_STAT("cop_unusable", cop_unusable_exits), - VCPU_STAT("tlbmod", tlbmod_exits), - VCPU_STAT("tlbmiss_ld", tlbmiss_ld_exits), - VCPU_STAT("tlbmiss_st", tlbmiss_st_exits), - VCPU_STAT("addrerr_st", addrerr_st_exits), - VCPU_STAT("addrerr_ld", addrerr_ld_exits), - VCPU_STAT("syscall", syscall_exits), - VCPU_STAT("resvd_inst", resvd_inst_exits), - VCPU_STAT("break_inst", break_inst_exits), - VCPU_STAT("trap_inst", trap_inst_exits), - VCPU_STAT("msa_fpe", msa_fpe_exits), - VCPU_STAT("fpe", fpe_exits), - VCPU_STAT("msa_disabled", msa_disabled_exits), - VCPU_STAT("flush_dcache", flush_dcache_exits), - VCPU_STAT("vz_gpsi", vz_gpsi_exits), - VCPU_STAT("vz_gsfc", vz_gsfc_exits), - VCPU_STAT("vz_hc", vz_hc_exits), - VCPU_STAT("vz_grr", vz_grr_exits), - VCPU_STAT("vz_gva", vz_gva_exits), - VCPU_STAT("vz_ghfc", vz_ghfc_exits), - VCPU_STAT("vz_gpa", vz_gpa_exits), - VCPU_STAT("vz_resvd", vz_resvd_exits), -#ifdef CONFIG_CPU_LOONGSON64 - VCPU_STAT("vz_cpucfg", vz_cpucfg_exits), -#endif - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - {NULL} -}; - bool kvm_trace_guest_mode_change; int kvm_guest_mode_change_trace_reg(void) diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 15436484e521..0c5bc4bf488c 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -102,39 +102,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("exits", sum_exits), - VCPU_STAT("mmio", mmio_exits), - VCPU_STAT("sig", signal_exits), - VCPU_STAT("sysc", syscall_exits), - VCPU_STAT("inst_emu", emulated_inst_exits), - VCPU_STAT("dec", dec_exits), - VCPU_STAT("ext_intr", ext_intr_exits), - VCPU_STAT("queue_intr", queue_intr), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("halt_wait_ns", halt_wait_ns), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT("halt_successful_wait", halt_successful_wait), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("pf_storage", pf_storage), - VCPU_STAT("sp_storage", sp_storage), - VCPU_STAT("pf_instruc", pf_instruc), - VCPU_STAT("sp_instruc", sp_instruc), - VCPU_STAT("ld", ld), - VCPU_STAT("ld_slow", ld_slow), - VCPU_STAT("st", st), - VCPU_STAT("st_slow", st_slow), - VCPU_STAT("pthru_all", pthru_all), - VCPU_STAT("pthru_host", pthru_host), - VCPU_STAT("pthru_bad_aff", pthru_bad_aff), - VM_STAT("largepages_2M", num_2M_pages, .mode = 0444), - VM_STAT("largepages_1G", num_1G_pages, .mode = 0444), - { NULL } -}; - static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, unsigned long pending_now, unsigned long old_pending) { diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index fbc9b7b6af57..888885b574cf 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -93,31 +93,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("mmio", mmio_exits), - VCPU_STAT("sig", signal_exits), - VCPU_STAT("itlb_r", itlb_real_miss_exits), - VCPU_STAT("itlb_v", itlb_virt_miss_exits), - VCPU_STAT("dtlb_r", dtlb_real_miss_exits), - VCPU_STAT("dtlb_v", dtlb_virt_miss_exits), - VCPU_STAT("sysc", syscall_exits), - VCPU_STAT("isi", isi_exits), - VCPU_STAT("dsi", dsi_exits), - VCPU_STAT("inst_emu", emulated_inst_exits), - VCPU_STAT("dec", dec_exits), - VCPU_STAT("ext_intr", ext_intr_exits), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("doorbell", dbell_exits), - VCPU_STAT("guest doorbell", gdbell_exits), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VM_STAT_GENERIC("remote_tlb_flush", remote_tlb_flush), - { NULL } -}; - /* TODO: use vcpu_printf() */ void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu) { diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ba50dd775fa8..50dab32cbef1 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -188,114 +188,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("userspace_handled", exit_userspace), - VCPU_STAT("exit_null", exit_null), - VCPU_STAT("pfault_sync", pfault_sync), - VCPU_STAT("exit_validity", exit_validity), - VCPU_STAT("exit_stop_request", exit_stop_request), - VCPU_STAT("exit_external_request", exit_external_request), - VCPU_STAT("exit_io_request", exit_io_request), - VCPU_STAT("exit_external_interrupt", exit_external_interrupt), - VCPU_STAT("exit_instruction", exit_instruction), - VCPU_STAT("exit_pei", exit_pei), - VCPU_STAT("exit_program_interruption", exit_program_interruption), - VCPU_STAT("exit_instr_and_program_int", exit_instr_and_program), - VCPU_STAT("exit_operation_exception", exit_operation_exception), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT("halt_no_poll_steal", halt_no_poll_steal), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("instruction_lctlg", instruction_lctlg), - VCPU_STAT("instruction_lctl", instruction_lctl), - VCPU_STAT("instruction_stctl", instruction_stctl), - VCPU_STAT("instruction_stctg", instruction_stctg), - VCPU_STAT("deliver_ckc", deliver_ckc), - VCPU_STAT("deliver_cputm", deliver_cputm), - VCPU_STAT("deliver_emergency_signal", deliver_emergency_signal), - VCPU_STAT("deliver_external_call", deliver_external_call), - VCPU_STAT("deliver_service_signal", deliver_service_signal), - VCPU_STAT("deliver_virtio", deliver_virtio), - VCPU_STAT("deliver_stop_signal", deliver_stop_signal), - VCPU_STAT("deliver_prefix_signal", deliver_prefix_signal), - VCPU_STAT("deliver_restart_signal", deliver_restart_signal), - VCPU_STAT("deliver_program", deliver_program), - VCPU_STAT("deliver_io", deliver_io), - VCPU_STAT("deliver_machine_check", deliver_machine_check), - VCPU_STAT("exit_wait_state", exit_wait_state), - VCPU_STAT("inject_ckc", inject_ckc), - VCPU_STAT("inject_cputm", inject_cputm), - VCPU_STAT("inject_external_call", inject_external_call), - VM_STAT("inject_float_mchk", inject_float_mchk), - VCPU_STAT("inject_emergency_signal", inject_emergency_signal), - VM_STAT("inject_io", inject_io), - VCPU_STAT("inject_mchk", inject_mchk), - VM_STAT("inject_pfault_done", inject_pfault_done), - VCPU_STAT("inject_program", inject_program), - VCPU_STAT("inject_restart", inject_restart), - VM_STAT("inject_service_signal", inject_service_signal), - VCPU_STAT("inject_set_prefix", inject_set_prefix), - VCPU_STAT("inject_stop_signal", inject_stop_signal), - VCPU_STAT("inject_pfault_init", inject_pfault_init), - VM_STAT("inject_virtio", inject_virtio), - VCPU_STAT("instruction_epsw", instruction_epsw), - VCPU_STAT("instruction_gs", instruction_gs), - VCPU_STAT("instruction_io_other", instruction_io_other), - VCPU_STAT("instruction_lpsw", instruction_lpsw), - VCPU_STAT("instruction_lpswe", instruction_lpswe), - VCPU_STAT("instruction_pfmf", instruction_pfmf), - VCPU_STAT("instruction_ptff", instruction_ptff), - VCPU_STAT("instruction_stidp", instruction_stidp), - VCPU_STAT("instruction_sck", instruction_sck), - VCPU_STAT("instruction_sckpf", instruction_sckpf), - VCPU_STAT("instruction_spx", instruction_spx), - VCPU_STAT("instruction_stpx", instruction_stpx), - VCPU_STAT("instruction_stap", instruction_stap), - VCPU_STAT("instruction_iske", instruction_iske), - VCPU_STAT("instruction_ri", instruction_ri), - VCPU_STAT("instruction_rrbe", instruction_rrbe), - VCPU_STAT("instruction_sske", instruction_sske), - VCPU_STAT("instruction_ipte_interlock", instruction_ipte_interlock), - VCPU_STAT("instruction_essa", instruction_essa), - VCPU_STAT("instruction_stsi", instruction_stsi), - VCPU_STAT("instruction_stfl", instruction_stfl), - VCPU_STAT("instruction_tb", instruction_tb), - VCPU_STAT("instruction_tpi", instruction_tpi), - VCPU_STAT("instruction_tprot", instruction_tprot), - VCPU_STAT("instruction_tsch", instruction_tsch), - VCPU_STAT("instruction_sthyi", instruction_sthyi), - VCPU_STAT("instruction_sie", instruction_sie), - VCPU_STAT("instruction_sigp_sense", instruction_sigp_sense), - VCPU_STAT("instruction_sigp_sense_running", instruction_sigp_sense_running), - VCPU_STAT("instruction_sigp_external_call", instruction_sigp_external_call), - VCPU_STAT("instruction_sigp_emergency", instruction_sigp_emergency), - VCPU_STAT("instruction_sigp_cond_emergency", instruction_sigp_cond_emergency), - VCPU_STAT("instruction_sigp_start", instruction_sigp_start), - VCPU_STAT("instruction_sigp_stop", instruction_sigp_stop), - VCPU_STAT("instruction_sigp_stop_store_status", instruction_sigp_stop_store_status), - VCPU_STAT("instruction_sigp_store_status", instruction_sigp_store_status), - VCPU_STAT("instruction_sigp_store_adtl_status", instruction_sigp_store_adtl_status), - VCPU_STAT("instruction_sigp_set_arch", instruction_sigp_arch), - VCPU_STAT("instruction_sigp_set_prefix", instruction_sigp_prefix), - VCPU_STAT("instruction_sigp_restart", instruction_sigp_restart), - VCPU_STAT("instruction_sigp_cpu_reset", instruction_sigp_cpu_reset), - VCPU_STAT("instruction_sigp_init_cpu_reset", instruction_sigp_init_cpu_reset), - VCPU_STAT("instruction_sigp_unknown", instruction_sigp_unknown), - VCPU_STAT("instruction_diag_10", diagnose_10), - VCPU_STAT("instruction_diag_44", diagnose_44), - VCPU_STAT("instruction_diag_9c", diagnose_9c), - VCPU_STAT("diag_9c_ignored", diagnose_9c_ignored), - VCPU_STAT("diag_9c_forward", diagnose_9c_forward), - VCPU_STAT("instruction_diag_258", diagnose_258), - VCPU_STAT("instruction_diag_308", diagnose_308), - VCPU_STAT("instruction_diag_500", diagnose_500), - VCPU_STAT("instruction_diag_other", diagnose_other), - { NULL } -}; - /* allow nested virtualization in KVM (if enabled by user space) */ static int nested; module_param(nested, int, S_IRUGO); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 84438573b529..470a14c3c911 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -234,7 +234,7 @@ struct _kvm_stats_desc kvm_vm_stats_desc[] = { STATS_DESC_ICOUNTER(VM, mmu_unsync), STATS_DESC_ICOUNTER(VM, lpages), STATS_DESC_ICOUNTER(VM, nx_lpage_splits), - STATS_DESC_ICOUNTER(VM, max_mmu_page_hash_collisions) + STATS_DESC_PCOUNTER(VM, max_mmu_page_hash_collisions) }; static_assert(ARRAY_SIZE(kvm_vm_stats_desc) == sizeof(struct kvm_vm_stat) / sizeof(u64)); @@ -291,53 +291,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("pf_fixed", pf_fixed), - VCPU_STAT("pf_guest", pf_guest), - VCPU_STAT("tlb_flush", tlb_flush), - VCPU_STAT("invlpg", invlpg), - VCPU_STAT("exits", exits), - VCPU_STAT("io_exits", io_exits), - VCPU_STAT("mmio_exits", mmio_exits), - VCPU_STAT("signal_exits", signal_exits), - VCPU_STAT("irq_window", irq_window_exits), - VCPU_STAT("nmi_window", nmi_window_exits), - VCPU_STAT("halt_exits", halt_exits), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("hypercalls", hypercalls), - VCPU_STAT("request_irq", request_irq_exits), - VCPU_STAT("irq_exits", irq_exits), - VCPU_STAT("host_state_reload", host_state_reload), - VCPU_STAT("fpu_reload", fpu_reload), - VCPU_STAT("insn_emulation", insn_emulation), - VCPU_STAT("insn_emulation_fail", insn_emulation_fail), - VCPU_STAT("irq_injections", irq_injections), - VCPU_STAT("nmi_injections", nmi_injections), - VCPU_STAT("req_event", req_event), - VCPU_STAT("l1d_flush", l1d_flush), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("nested_run", nested_run), - VCPU_STAT("directed_yield_attempted", directed_yield_attempted), - VCPU_STAT("directed_yield_successful", directed_yield_successful), - VCPU_STAT("guest_mode", guest_mode), - VM_STAT("mmu_shadow_zapped", mmu_shadow_zapped), - VM_STAT("mmu_pte_write", mmu_pte_write), - VM_STAT("mmu_pde_zapped", mmu_pde_zapped), - VM_STAT("mmu_flooded", mmu_flooded), - VM_STAT("mmu_recycled", mmu_recycled), - VM_STAT("mmu_cache_miss", mmu_cache_miss), - VM_STAT("mmu_unsync", mmu_unsync), - VM_STAT_GENERIC("remote_tlb_flush", remote_tlb_flush), - VM_STAT("largepages", lpages, .mode = 0444), - VM_STAT("nx_largepages_splitted", nx_lpage_splits, .mode = 0444), - VM_STAT("max_mmu_page_hash_collisions", max_mmu_page_hash_collisions), - { NULL } -}; - u64 __read_mostly host_xcr0; u64 __read_mostly supported_xcr0; EXPORT_SYMBOL_GPL(supported_xcr0); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 692af9177c9f..6b353d6c50fd 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1262,14 +1262,8 @@ enum kvm_stat_kind { struct kvm_stat_data { struct kvm *kvm; - struct kvm_stats_debugfs_item *dbgfs_item; -}; - -struct kvm_stats_debugfs_item { - const char *name; - int offset; + struct _kvm_stats_desc *desc; enum kvm_stat_kind kind; - int mode; }; struct _kvm_stats_header { @@ -1283,24 +1277,11 @@ struct _kvm_stats_desc { char name[KVM_STATS_NAME_LEN]; }; -#define KVM_DBGFS_GET_MODE(dbgfs_item) \ - ((dbgfs_item)->mode ? (dbgfs_item)->mode : 0644) - -#define VM_STAT(n, x, ...) \ - { n, offsetof(struct kvm, stat.x), KVM_STAT_VM, ## __VA_ARGS__ } -#define VCPU_STAT(n, x, ...) \ - { n, offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU, ## __VA_ARGS__ } -#define VM_STAT_GENERIC(n, x, ...) \ - { n, offsetof(struct kvm, stat.generic.x), KVM_STAT_VM, ## __VA_ARGS__ } -#define VCPU_STAT_GENERIC(n, x, ...) \ - { n, offsetof(struct kvm_vcpu, stat.generic.x), \ - KVM_STAT_VCPU, ## __VA_ARGS__ } - #define STATS_DESC_COMMON(type, unit, base, exp) \ .flags = type | unit | base | \ - BUILD_BUG_ON_ZERO(type & ~KVM_STATS_TYPE_MASK) | \ - BUILD_BUG_ON_ZERO(unit & ~KVM_STATS_UNIT_MASK) | \ - BUILD_BUG_ON_ZERO(base & ~KVM_STATS_BASE_MASK), \ + BUILD_BUG_ON_ZERO(type & ~KVM_STATS_TYPE_MASK) | \ + BUILD_BUG_ON_ZERO(unit & ~KVM_STATS_UNIT_MASK) | \ + BUILD_BUG_ON_ZERO(base & ~KVM_STATS_BASE_MASK), \ .exponent = exp, \ .size = 1 @@ -1341,19 +1322,24 @@ struct _kvm_stats_desc { SCOPE##_STATS_DESC(stat, type, unit, base, exp) #define STATS_DESC_CUMULATIVE(SCOPE, name, unit, base, exponent) \ - STATS_DESC(SCOPE, name, KVM_STATS_TYPE_CUMULATIVE, \ - unit, base, exponent) + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_CUMULATIVE, unit, base, exponent) #define STATS_DESC_INSTANT(SCOPE, name, unit, base, exponent) \ - STATS_DESC(SCOPE, name, KVM_STATS_TYPE_INSTANT, unit, base, exponent) \ + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_INSTANT, unit, base, exponent) +#define STATS_DESC_PEAK(SCOPE, name, unit, base, exponent) \ + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_PEAK, unit, base, exponent) -/* Cumulative counter */ +/* Cumulative read/write counter */ #define STATS_DESC_COUNTER(SCOPE, name) \ STATS_DESC_CUMULATIVE(SCOPE, name, KVM_STATS_UNIT_NONE, \ KVM_STATS_BASE_POW10, 0) -/* Instantaneous counter */ +/* Instantaneous read only counter */ #define STATS_DESC_ICOUNTER(SCOPE, name) \ STATS_DESC_INSTANT(SCOPE, name, KVM_STATS_UNIT_NONE, \ KVM_STATS_BASE_POW10, 0) +/* Instantaneous read/write counter */ +#define STATS_DESC_PCOUNTER(SCOPE, name) \ + STATS_DESC_PEAK(SCOPE, name, KVM_STATS_UNIT_NONE, \ + KVM_STATS_BASE_POW10, 0) /* Cumulative clock cycles */ #define STATS_DESC_CYCLE(SCOPE, name) \ @@ -1443,7 +1429,6 @@ struct _kvm_stats_desc { STATS_DESC_TIME_NSEC(VCPU_GENERIC, halt_poll_success_ns), \ STATS_DESC_TIME_NSEC(VCPU_GENERIC, halt_poll_fail_ns) -extern struct kvm_stats_debugfs_item debugfs_entries[]; extern struct dentry *kvm_debugfs_dir; extern struct _kvm_stats_header kvm_vm_stats_header; extern struct _kvm_stats_header kvm_vcpu_stats_header; diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d6e97b577d01..81ad814cdf24 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1920,7 +1920,9 @@ struct kvm_stats_header { #define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT) #define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT) #define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT) -#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_INSTANT +/* Peak type is used as read/write instant counters */ +#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT) +#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_PEAK #define KVM_STATS_UNIT_SHIFT 4 #define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f5bea71ea61c..74f2d0567f3e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -115,7 +115,6 @@ static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_running_vcpu); struct dentry *kvm_debugfs_dir; EXPORT_SYMBOL_GPL(kvm_debugfs_dir); -static int kvm_debugfs_num_entries; static const struct file_operations stat_fops_per_vm; static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl, @@ -860,9 +859,24 @@ static void kvm_free_memslots(struct kvm *kvm, struct kvm_memslots *slots) kvfree(slots); } +static umode_t kvm_stats_debugfs_mode(struct _kvm_stats_desc *pdesc) +{ + switch (pdesc->desc.flags & KVM_STATS_TYPE_MASK) { + case KVM_STATS_TYPE_INSTANT: + return 0444; + case KVM_STATS_TYPE_CUMULATIVE: + case KVM_STATS_TYPE_PEAK: + default: + return 0644; + } +} + + static void kvm_destroy_vm_debugfs(struct kvm *kvm) { int i; + int kvm_debugfs_num_entries = kvm_vm_stats_header.header.count + + kvm_vcpu_stats_header.header.count; if (!kvm->debugfs_dentry) return; @@ -880,7 +894,10 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd) { char dir_name[ITOA_MAX_LEN * 2]; struct kvm_stat_data *stat_data; - struct kvm_stats_debugfs_item *p; + struct _kvm_stats_desc *pdesc; + int i; + int kvm_debugfs_num_entries = kvm_vm_stats_header.header.count + + kvm_vcpu_stats_header.header.count; if (!debugfs_initialized()) return 0; @@ -894,15 +911,32 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd) if (!kvm->debugfs_stat_data) return -ENOMEM; - for (p = debugfs_entries; p->name; p++) { + for (i = 0; i < kvm_vm_stats_header.header.count; ++i) { + pdesc = &kvm_vm_stats_desc[i]; stat_data = kzalloc(sizeof(*stat_data), GFP_KERNEL_ACCOUNT); if (!stat_data) return -ENOMEM; stat_data->kvm = kvm; - stat_data->dbgfs_item = p; - kvm->debugfs_stat_data[p - debugfs_entries] = stat_data; - debugfs_create_file(p->name, KVM_DBGFS_GET_MODE(p), + stat_data->desc = pdesc; + stat_data->kind = KVM_STAT_VM; + kvm->debugfs_stat_data[i] = stat_data; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm->debugfs_dentry, stat_data, + &stat_fops_per_vm); + } + + for (i = 0; i < kvm_vcpu_stats_header.header.count; ++i) { + pdesc = &kvm_vcpu_stats_desc[i]; + stat_data = kzalloc(sizeof(*stat_data), GFP_KERNEL_ACCOUNT); + if (!stat_data) + return -ENOMEM; + + stat_data->kvm = kvm; + stat_data->desc = pdesc; + stat_data->kind = KVM_STAT_VCPU; + kvm->debugfs_stat_data[i] = stat_data; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), kvm->debugfs_dentry, stat_data, &stat_fops_per_vm); } @@ -4953,7 +4987,7 @@ static int kvm_debugfs_open(struct inode *inode, struct file *file, return -ENOENT; if (simple_attr_open(inode, file, get, - KVM_DBGFS_GET_MODE(stat_data->dbgfs_item) & 0222 + kvm_stats_debugfs_mode(stat_data->desc) & 0222 ? set : NULL, fmt)) { kvm_put_kvm(stat_data->kvm); @@ -4976,14 +5010,14 @@ static int kvm_debugfs_release(struct inode *inode, struct file *file) static int kvm_get_stat_per_vm(struct kvm *kvm, size_t offset, u64 *val) { - *val = *(u64 *)((void *)kvm + offset); + *val = *(u64 *)((void *)(&kvm->stat) + offset); return 0; } static int kvm_clear_stat_per_vm(struct kvm *kvm, size_t offset) { - *(u64 *)((void *)kvm + offset) = 0; + *(u64 *)((void *)(&kvm->stat) + offset) = 0; return 0; } @@ -4996,7 +5030,7 @@ static int kvm_get_stat_per_vcpu(struct kvm *kvm, size_t offset, u64 *val) *val = 0; kvm_for_each_vcpu(i, vcpu, kvm) - *val += *(u64 *)((void *)vcpu + offset); + *val += *(u64 *)((void *)(&vcpu->stat) + offset); return 0; } @@ -5007,7 +5041,7 @@ static int kvm_clear_stat_per_vcpu(struct kvm *kvm, size_t offset) struct kvm_vcpu *vcpu; kvm_for_each_vcpu(i, vcpu, kvm) - *(u64 *)((void *)vcpu + offset) = 0; + *(u64 *)((void *)(&vcpu->stat) + offset) = 0; return 0; } @@ -5017,14 +5051,14 @@ static int kvm_stat_data_get(void *data, u64 *val) int r = -EFAULT; struct kvm_stat_data *stat_data = (struct kvm_stat_data *)data; - switch (stat_data->dbgfs_item->kind) { + switch (stat_data->kind) { case KVM_STAT_VM: r = kvm_get_stat_per_vm(stat_data->kvm, - stat_data->dbgfs_item->offset, val); + stat_data->desc->desc.offset, val); break; case KVM_STAT_VCPU: r = kvm_get_stat_per_vcpu(stat_data->kvm, - stat_data->dbgfs_item->offset, val); + stat_data->desc->desc.offset, val); break; } @@ -5039,14 +5073,14 @@ static int kvm_stat_data_clear(void *data, u64 val) if (val) return -EINVAL; - switch (stat_data->dbgfs_item->kind) { + switch (stat_data->kind) { case KVM_STAT_VM: r = kvm_clear_stat_per_vm(stat_data->kvm, - stat_data->dbgfs_item->offset); + stat_data->desc->desc.offset); break; case KVM_STAT_VCPU: r = kvm_clear_stat_per_vcpu(stat_data->kvm, - stat_data->dbgfs_item->offset); + stat_data->desc->desc.offset); break; } @@ -5103,6 +5137,7 @@ static int vm_stat_clear(void *_offset, u64 val) } DEFINE_SIMPLE_ATTRIBUTE(vm_stat_fops, vm_stat_get, vm_stat_clear, "%llu\n"); +DEFINE_SIMPLE_ATTRIBUTE(vm_stat_readonly_fops, vm_stat_get, NULL, "%llu\n"); static int vcpu_stat_get(void *_offset, u64 *val) { @@ -5139,11 +5174,7 @@ static int vcpu_stat_clear(void *_offset, u64 val) DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_fops, vcpu_stat_get, vcpu_stat_clear, "%llu\n"); - -static const struct file_operations *stat_fops[] = { - [KVM_STAT_VCPU] = &vcpu_stat_fops, - [KVM_STAT_VM] = &vm_stat_fops, -}; +DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_readonly_fops, vcpu_stat_get, NULL, "%llu\n"); static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm) { @@ -5197,15 +5228,32 @@ static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm) static void kvm_init_debug(void) { - struct kvm_stats_debugfs_item *p; + const struct file_operations *fops; + struct _kvm_stats_desc *pdesc; + int i; kvm_debugfs_dir = debugfs_create_dir("kvm", NULL); - kvm_debugfs_num_entries = 0; - for (p = debugfs_entries; p->name; ++p, kvm_debugfs_num_entries++) { - debugfs_create_file(p->name, KVM_DBGFS_GET_MODE(p), - kvm_debugfs_dir, (void *)(long)p->offset, - stat_fops[p->kind]); + for (i = 0; i < kvm_vm_stats_header.header.count; ++i) { + pdesc = &kvm_vm_stats_desc[i]; + if (kvm_stats_debugfs_mode(pdesc) & 0222) + fops = &vm_stat_fops; + else + fops = &vm_stat_readonly_fops; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm_debugfs_dir, + (void *)(long)pdesc->desc.offset, fops); + } + + for (i = 0; i < kvm_vcpu_stats_header.header.count; ++i) { + pdesc = &kvm_vcpu_stats_desc[i]; + if (kvm_stats_debugfs_mode(pdesc) & 0222) + fops = &vcpu_stat_fops; + else + fops = &vcpu_stat_readonly_fops; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm_debugfs_dir, + (void *)(long)pdesc->desc.offset, fops); } } -- 2.32.0.272.g935e593368-goog 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=-16.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 6BDF9C48BE6 for ; Mon, 14 Jun 2021 21:22:15 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 216EA61209 for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To remove code duplication, use the binary stats descriptors for debugfs interface for KVM stats. Then we only have one stats definitions for both binary and debugfs interface. Signed-off-by: Jing Zhang --- arch/arm64/kvm/guest.c | 16 ------ arch/mips/kvm/mips.c | 39 -------------- arch/powerpc/kvm/book3s.c | 33 ------------ arch/powerpc/kvm/booke.c | 25 --------- arch/s390/kvm/kvm-s390.c | 108 -------------------------------------- arch/x86/kvm/x86.c | 49 +---------------- include/linux/kvm_host.h | 43 +++++---------- include/uapi/linux/kvm.h | 4 +- virt/kvm/kvm_main.c | 104 ++++++++++++++++++++++++++---------- 9 files changed, 94 insertions(+), 327 deletions(-) diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 99842e29c2de..59486a9fef1a 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -66,22 +66,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("hvc_exit_stat", hvc_exit_stat), - VCPU_STAT("wfe_exit_stat", wfe_exit_stat), - VCPU_STAT("wfi_exit_stat", wfi_exit_stat), - VCPU_STAT("mmio_exit_user", mmio_exit_user), - VCPU_STAT("mmio_exit_kernel", mmio_exit_kernel), - VCPU_STAT("exits", exits), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - { NULL } -}; - static bool core_reg_offset_is_vreg(u64 off) { return off >= KVM_REG_ARM_CORE_REG(fp_regs.vregs) && diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 67404f0947aa..606fe3b47075 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -99,45 +99,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("wait", wait_exits), - VCPU_STAT("cache", cache_exits), - VCPU_STAT("signal", signal_exits), - VCPU_STAT("interrupt", int_exits), - VCPU_STAT("cop_unusable", cop_unusable_exits), - VCPU_STAT("tlbmod", tlbmod_exits), - VCPU_STAT("tlbmiss_ld", tlbmiss_ld_exits), - VCPU_STAT("tlbmiss_st", tlbmiss_st_exits), - VCPU_STAT("addrerr_st", addrerr_st_exits), - VCPU_STAT("addrerr_ld", addrerr_ld_exits), - VCPU_STAT("syscall", syscall_exits), - VCPU_STAT("resvd_inst", resvd_inst_exits), - VCPU_STAT("break_inst", break_inst_exits), - VCPU_STAT("trap_inst", trap_inst_exits), - VCPU_STAT("msa_fpe", msa_fpe_exits), - VCPU_STAT("fpe", fpe_exits), - VCPU_STAT("msa_disabled", msa_disabled_exits), - VCPU_STAT("flush_dcache", flush_dcache_exits), - VCPU_STAT("vz_gpsi", vz_gpsi_exits), - VCPU_STAT("vz_gsfc", vz_gsfc_exits), - VCPU_STAT("vz_hc", vz_hc_exits), - VCPU_STAT("vz_grr", vz_grr_exits), - VCPU_STAT("vz_gva", vz_gva_exits), - VCPU_STAT("vz_ghfc", vz_ghfc_exits), - VCPU_STAT("vz_gpa", vz_gpa_exits), - VCPU_STAT("vz_resvd", vz_resvd_exits), -#ifdef CONFIG_CPU_LOONGSON64 - VCPU_STAT("vz_cpucfg", vz_cpucfg_exits), -#endif - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - {NULL} -}; - bool kvm_trace_guest_mode_change; int kvm_guest_mode_change_trace_reg(void) diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 15436484e521..0c5bc4bf488c 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -102,39 +102,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("exits", sum_exits), - VCPU_STAT("mmio", mmio_exits), - VCPU_STAT("sig", signal_exits), - VCPU_STAT("sysc", syscall_exits), - VCPU_STAT("inst_emu", emulated_inst_exits), - VCPU_STAT("dec", dec_exits), - VCPU_STAT("ext_intr", ext_intr_exits), - VCPU_STAT("queue_intr", queue_intr), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("halt_wait_ns", halt_wait_ns), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT("halt_successful_wait", halt_successful_wait), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("pf_storage", pf_storage), - VCPU_STAT("sp_storage", sp_storage), - VCPU_STAT("pf_instruc", pf_instruc), - VCPU_STAT("sp_instruc", sp_instruc), - VCPU_STAT("ld", ld), - VCPU_STAT("ld_slow", ld_slow), - VCPU_STAT("st", st), - VCPU_STAT("st_slow", st_slow), - VCPU_STAT("pthru_all", pthru_all), - VCPU_STAT("pthru_host", pthru_host), - VCPU_STAT("pthru_bad_aff", pthru_bad_aff), - VM_STAT("largepages_2M", num_2M_pages, .mode = 0444), - VM_STAT("largepages_1G", num_1G_pages, .mode = 0444), - { NULL } -}; - static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, unsigned long pending_now, unsigned long old_pending) { diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index fbc9b7b6af57..888885b574cf 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -93,31 +93,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("mmio", mmio_exits), - VCPU_STAT("sig", signal_exits), - VCPU_STAT("itlb_r", itlb_real_miss_exits), - VCPU_STAT("itlb_v", itlb_virt_miss_exits), - VCPU_STAT("dtlb_r", dtlb_real_miss_exits), - VCPU_STAT("dtlb_v", dtlb_virt_miss_exits), - VCPU_STAT("sysc", syscall_exits), - VCPU_STAT("isi", isi_exits), - VCPU_STAT("dsi", dsi_exits), - VCPU_STAT("inst_emu", emulated_inst_exits), - VCPU_STAT("dec", dec_exits), - VCPU_STAT("ext_intr", ext_intr_exits), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("doorbell", dbell_exits), - VCPU_STAT("guest doorbell", gdbell_exits), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VM_STAT_GENERIC("remote_tlb_flush", remote_tlb_flush), - { NULL } -}; - /* TODO: use vcpu_printf() */ void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu) { diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ba50dd775fa8..50dab32cbef1 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -188,114 +188,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("userspace_handled", exit_userspace), - VCPU_STAT("exit_null", exit_null), - VCPU_STAT("pfault_sync", pfault_sync), - VCPU_STAT("exit_validity", exit_validity), - VCPU_STAT("exit_stop_request", exit_stop_request), - VCPU_STAT("exit_external_request", exit_external_request), - VCPU_STAT("exit_io_request", exit_io_request), - VCPU_STAT("exit_external_interrupt", exit_external_interrupt), - VCPU_STAT("exit_instruction", exit_instruction), - VCPU_STAT("exit_pei", exit_pei), - VCPU_STAT("exit_program_interruption", exit_program_interruption), - VCPU_STAT("exit_instr_and_program_int", exit_instr_and_program), - VCPU_STAT("exit_operation_exception", exit_operation_exception), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT("halt_no_poll_steal", halt_no_poll_steal), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("instruction_lctlg", instruction_lctlg), - VCPU_STAT("instruction_lctl", instruction_lctl), - VCPU_STAT("instruction_stctl", instruction_stctl), - VCPU_STAT("instruction_stctg", instruction_stctg), - VCPU_STAT("deliver_ckc", deliver_ckc), - VCPU_STAT("deliver_cputm", deliver_cputm), - VCPU_STAT("deliver_emergency_signal", deliver_emergency_signal), - VCPU_STAT("deliver_external_call", deliver_external_call), - VCPU_STAT("deliver_service_signal", deliver_service_signal), - VCPU_STAT("deliver_virtio", deliver_virtio), - VCPU_STAT("deliver_stop_signal", deliver_stop_signal), - VCPU_STAT("deliver_prefix_signal", deliver_prefix_signal), - VCPU_STAT("deliver_restart_signal", deliver_restart_signal), - VCPU_STAT("deliver_program", deliver_program), - VCPU_STAT("deliver_io", deliver_io), - VCPU_STAT("deliver_machine_check", deliver_machine_check), - VCPU_STAT("exit_wait_state", exit_wait_state), - VCPU_STAT("inject_ckc", inject_ckc), - VCPU_STAT("inject_cputm", inject_cputm), - VCPU_STAT("inject_external_call", inject_external_call), - VM_STAT("inject_float_mchk", inject_float_mchk), - VCPU_STAT("inject_emergency_signal", inject_emergency_signal), - VM_STAT("inject_io", inject_io), - VCPU_STAT("inject_mchk", inject_mchk), - VM_STAT("inject_pfault_done", inject_pfault_done), - VCPU_STAT("inject_program", inject_program), - VCPU_STAT("inject_restart", inject_restart), - VM_STAT("inject_service_signal", inject_service_signal), - VCPU_STAT("inject_set_prefix", inject_set_prefix), - VCPU_STAT("inject_stop_signal", inject_stop_signal), - VCPU_STAT("inject_pfault_init", inject_pfault_init), - VM_STAT("inject_virtio", inject_virtio), - VCPU_STAT("instruction_epsw", instruction_epsw), - VCPU_STAT("instruction_gs", instruction_gs), - VCPU_STAT("instruction_io_other", instruction_io_other), - VCPU_STAT("instruction_lpsw", instruction_lpsw), - VCPU_STAT("instruction_lpswe", instruction_lpswe), - VCPU_STAT("instruction_pfmf", instruction_pfmf), - VCPU_STAT("instruction_ptff", instruction_ptff), - VCPU_STAT("instruction_stidp", instruction_stidp), - VCPU_STAT("instruction_sck", instruction_sck), - VCPU_STAT("instruction_sckpf", instruction_sckpf), - VCPU_STAT("instruction_spx", instruction_spx), - VCPU_STAT("instruction_stpx", instruction_stpx), - VCPU_STAT("instruction_stap", instruction_stap), - VCPU_STAT("instruction_iske", instruction_iske), - VCPU_STAT("instruction_ri", instruction_ri), - VCPU_STAT("instruction_rrbe", instruction_rrbe), - VCPU_STAT("instruction_sske", instruction_sske), - VCPU_STAT("instruction_ipte_interlock", instruction_ipte_interlock), - VCPU_STAT("instruction_essa", instruction_essa), - VCPU_STAT("instruction_stsi", instruction_stsi), - VCPU_STAT("instruction_stfl", instruction_stfl), - VCPU_STAT("instruction_tb", instruction_tb), - VCPU_STAT("instruction_tpi", instruction_tpi), - VCPU_STAT("instruction_tprot", instruction_tprot), - VCPU_STAT("instruction_tsch", instruction_tsch), - VCPU_STAT("instruction_sthyi", instruction_sthyi), - VCPU_STAT("instruction_sie", instruction_sie), - VCPU_STAT("instruction_sigp_sense", instruction_sigp_sense), - VCPU_STAT("instruction_sigp_sense_running", instruction_sigp_sense_running), - VCPU_STAT("instruction_sigp_external_call", instruction_sigp_external_call), - VCPU_STAT("instruction_sigp_emergency", instruction_sigp_emergency), - VCPU_STAT("instruction_sigp_cond_emergency", instruction_sigp_cond_emergency), - VCPU_STAT("instruction_sigp_start", instruction_sigp_start), - VCPU_STAT("instruction_sigp_stop", instruction_sigp_stop), - VCPU_STAT("instruction_sigp_stop_store_status", instruction_sigp_stop_store_status), - VCPU_STAT("instruction_sigp_store_status", instruction_sigp_store_status), - VCPU_STAT("instruction_sigp_store_adtl_status", instruction_sigp_store_adtl_status), - VCPU_STAT("instruction_sigp_set_arch", instruction_sigp_arch), - VCPU_STAT("instruction_sigp_set_prefix", instruction_sigp_prefix), - VCPU_STAT("instruction_sigp_restart", instruction_sigp_restart), - VCPU_STAT("instruction_sigp_cpu_reset", instruction_sigp_cpu_reset), - VCPU_STAT("instruction_sigp_init_cpu_reset", instruction_sigp_init_cpu_reset), - VCPU_STAT("instruction_sigp_unknown", instruction_sigp_unknown), - VCPU_STAT("instruction_diag_10", diagnose_10), - VCPU_STAT("instruction_diag_44", diagnose_44), - VCPU_STAT("instruction_diag_9c", diagnose_9c), - VCPU_STAT("diag_9c_ignored", diagnose_9c_ignored), - VCPU_STAT("diag_9c_forward", diagnose_9c_forward), - VCPU_STAT("instruction_diag_258", diagnose_258), - VCPU_STAT("instruction_diag_308", diagnose_308), - VCPU_STAT("instruction_diag_500", diagnose_500), - VCPU_STAT("instruction_diag_other", diagnose_other), - { NULL } -}; - /* allow nested virtualization in KVM (if enabled by user space) */ static int nested; module_param(nested, int, S_IRUGO); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 84438573b529..470a14c3c911 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -234,7 +234,7 @@ struct _kvm_stats_desc kvm_vm_stats_desc[] = { STATS_DESC_ICOUNTER(VM, mmu_unsync), STATS_DESC_ICOUNTER(VM, lpages), STATS_DESC_ICOUNTER(VM, nx_lpage_splits), - STATS_DESC_ICOUNTER(VM, max_mmu_page_hash_collisions) + STATS_DESC_PCOUNTER(VM, max_mmu_page_hash_collisions) }; static_assert(ARRAY_SIZE(kvm_vm_stats_desc) == sizeof(struct kvm_vm_stat) / sizeof(u64)); @@ -291,53 +291,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("pf_fixed", pf_fixed), - VCPU_STAT("pf_guest", pf_guest), - VCPU_STAT("tlb_flush", tlb_flush), - VCPU_STAT("invlpg", invlpg), - VCPU_STAT("exits", exits), - VCPU_STAT("io_exits", io_exits), - VCPU_STAT("mmio_exits", mmio_exits), - VCPU_STAT("signal_exits", signal_exits), - VCPU_STAT("irq_window", irq_window_exits), - VCPU_STAT("nmi_window", nmi_window_exits), - VCPU_STAT("halt_exits", halt_exits), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("hypercalls", hypercalls), - VCPU_STAT("request_irq", request_irq_exits), - VCPU_STAT("irq_exits", irq_exits), - VCPU_STAT("host_state_reload", host_state_reload), - VCPU_STAT("fpu_reload", fpu_reload), - VCPU_STAT("insn_emulation", insn_emulation), - VCPU_STAT("insn_emulation_fail", insn_emulation_fail), - VCPU_STAT("irq_injections", irq_injections), - VCPU_STAT("nmi_injections", nmi_injections), - VCPU_STAT("req_event", req_event), - VCPU_STAT("l1d_flush", l1d_flush), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("nested_run", nested_run), - VCPU_STAT("directed_yield_attempted", directed_yield_attempted), - VCPU_STAT("directed_yield_successful", directed_yield_successful), - VCPU_STAT("guest_mode", guest_mode), - VM_STAT("mmu_shadow_zapped", mmu_shadow_zapped), - VM_STAT("mmu_pte_write", mmu_pte_write), - VM_STAT("mmu_pde_zapped", mmu_pde_zapped), - VM_STAT("mmu_flooded", mmu_flooded), - VM_STAT("mmu_recycled", mmu_recycled), - VM_STAT("mmu_cache_miss", mmu_cache_miss), - VM_STAT("mmu_unsync", mmu_unsync), - VM_STAT_GENERIC("remote_tlb_flush", remote_tlb_flush), - VM_STAT("largepages", lpages, .mode = 0444), - VM_STAT("nx_largepages_splitted", nx_lpage_splits, .mode = 0444), - VM_STAT("max_mmu_page_hash_collisions", max_mmu_page_hash_collisions), - { NULL } -}; - u64 __read_mostly host_xcr0; u64 __read_mostly supported_xcr0; EXPORT_SYMBOL_GPL(supported_xcr0); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 692af9177c9f..6b353d6c50fd 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1262,14 +1262,8 @@ enum kvm_stat_kind { struct kvm_stat_data { struct kvm *kvm; - struct kvm_stats_debugfs_item *dbgfs_item; -}; - -struct kvm_stats_debugfs_item { - const char *name; - int offset; + struct _kvm_stats_desc *desc; enum kvm_stat_kind kind; - int mode; }; struct _kvm_stats_header { @@ -1283,24 +1277,11 @@ struct _kvm_stats_desc { char name[KVM_STATS_NAME_LEN]; }; -#define KVM_DBGFS_GET_MODE(dbgfs_item) \ - ((dbgfs_item)->mode ? (dbgfs_item)->mode : 0644) - -#define VM_STAT(n, x, ...) \ - { n, offsetof(struct kvm, stat.x), KVM_STAT_VM, ## __VA_ARGS__ } -#define VCPU_STAT(n, x, ...) \ - { n, offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU, ## __VA_ARGS__ } -#define VM_STAT_GENERIC(n, x, ...) \ - { n, offsetof(struct kvm, stat.generic.x), KVM_STAT_VM, ## __VA_ARGS__ } -#define VCPU_STAT_GENERIC(n, x, ...) \ - { n, offsetof(struct kvm_vcpu, stat.generic.x), \ - KVM_STAT_VCPU, ## __VA_ARGS__ } - #define STATS_DESC_COMMON(type, unit, base, exp) \ .flags = type | unit | base | \ - BUILD_BUG_ON_ZERO(type & ~KVM_STATS_TYPE_MASK) | \ - BUILD_BUG_ON_ZERO(unit & ~KVM_STATS_UNIT_MASK) | \ - BUILD_BUG_ON_ZERO(base & ~KVM_STATS_BASE_MASK), \ + BUILD_BUG_ON_ZERO(type & ~KVM_STATS_TYPE_MASK) | \ + BUILD_BUG_ON_ZERO(unit & ~KVM_STATS_UNIT_MASK) | \ + BUILD_BUG_ON_ZERO(base & ~KVM_STATS_BASE_MASK), \ .exponent = exp, \ .size = 1 @@ -1341,19 +1322,24 @@ struct _kvm_stats_desc { SCOPE##_STATS_DESC(stat, type, unit, base, exp) #define STATS_DESC_CUMULATIVE(SCOPE, name, unit, base, exponent) \ - STATS_DESC(SCOPE, name, KVM_STATS_TYPE_CUMULATIVE, \ - unit, base, exponent) + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_CUMULATIVE, unit, base, exponent) #define STATS_DESC_INSTANT(SCOPE, name, unit, base, exponent) \ - STATS_DESC(SCOPE, name, KVM_STATS_TYPE_INSTANT, unit, base, exponent) \ + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_INSTANT, unit, base, exponent) +#define STATS_DESC_PEAK(SCOPE, name, unit, base, exponent) \ + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_PEAK, unit, base, exponent) -/* Cumulative counter */ +/* Cumulative read/write counter */ #define STATS_DESC_COUNTER(SCOPE, name) \ STATS_DESC_CUMULATIVE(SCOPE, name, KVM_STATS_UNIT_NONE, \ KVM_STATS_BASE_POW10, 0) -/* Instantaneous counter */ +/* Instantaneous read only counter */ #define STATS_DESC_ICOUNTER(SCOPE, name) \ STATS_DESC_INSTANT(SCOPE, name, KVM_STATS_UNIT_NONE, \ KVM_STATS_BASE_POW10, 0) +/* Instantaneous read/write counter */ +#define STATS_DESC_PCOUNTER(SCOPE, name) \ + STATS_DESC_PEAK(SCOPE, name, KVM_STATS_UNIT_NONE, \ + KVM_STATS_BASE_POW10, 0) /* Cumulative clock cycles */ #define STATS_DESC_CYCLE(SCOPE, name) \ @@ -1443,7 +1429,6 @@ struct _kvm_stats_desc { STATS_DESC_TIME_NSEC(VCPU_GENERIC, halt_poll_success_ns), \ STATS_DESC_TIME_NSEC(VCPU_GENERIC, halt_poll_fail_ns) -extern struct kvm_stats_debugfs_item debugfs_entries[]; extern struct dentry *kvm_debugfs_dir; extern struct _kvm_stats_header kvm_vm_stats_header; extern struct _kvm_stats_header kvm_vcpu_stats_header; diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d6e97b577d01..81ad814cdf24 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1920,7 +1920,9 @@ struct kvm_stats_header { #define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT) #define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT) #define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT) -#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_INSTANT +/* Peak type is used as read/write instant counters */ +#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT) +#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_PEAK #define KVM_STATS_UNIT_SHIFT 4 #define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f5bea71ea61c..74f2d0567f3e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -115,7 +115,6 @@ static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_running_vcpu); struct dentry *kvm_debugfs_dir; EXPORT_SYMBOL_GPL(kvm_debugfs_dir); -static int kvm_debugfs_num_entries; static const struct file_operations stat_fops_per_vm; static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl, @@ -860,9 +859,24 @@ static void kvm_free_memslots(struct kvm *kvm, struct kvm_memslots *slots) kvfree(slots); } +static umode_t kvm_stats_debugfs_mode(struct _kvm_stats_desc *pdesc) +{ + switch (pdesc->desc.flags & KVM_STATS_TYPE_MASK) { + case KVM_STATS_TYPE_INSTANT: + return 0444; + case KVM_STATS_TYPE_CUMULATIVE: + case KVM_STATS_TYPE_PEAK: + default: + return 0644; + } +} + + static void kvm_destroy_vm_debugfs(struct kvm *kvm) { int i; + int kvm_debugfs_num_entries = kvm_vm_stats_header.header.count + + kvm_vcpu_stats_header.header.count; if (!kvm->debugfs_dentry) return; @@ -880,7 +894,10 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd) { char dir_name[ITOA_MAX_LEN * 2]; struct kvm_stat_data *stat_data; - struct kvm_stats_debugfs_item *p; + struct _kvm_stats_desc *pdesc; + int i; + int kvm_debugfs_num_entries = kvm_vm_stats_header.header.count + + kvm_vcpu_stats_header.header.count; if (!debugfs_initialized()) return 0; @@ -894,15 +911,32 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd) if (!kvm->debugfs_stat_data) return -ENOMEM; - for (p = debugfs_entries; p->name; p++) { + for (i = 0; i < kvm_vm_stats_header.header.count; ++i) { + pdesc = &kvm_vm_stats_desc[i]; stat_data = kzalloc(sizeof(*stat_data), GFP_KERNEL_ACCOUNT); if (!stat_data) return -ENOMEM; stat_data->kvm = kvm; - stat_data->dbgfs_item = p; - kvm->debugfs_stat_data[p - debugfs_entries] = stat_data; - debugfs_create_file(p->name, KVM_DBGFS_GET_MODE(p), + stat_data->desc = pdesc; + stat_data->kind = KVM_STAT_VM; + kvm->debugfs_stat_data[i] = stat_data; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm->debugfs_dentry, stat_data, + &stat_fops_per_vm); + } + + for (i = 0; i < kvm_vcpu_stats_header.header.count; ++i) { + pdesc = &kvm_vcpu_stats_desc[i]; + stat_data = kzalloc(sizeof(*stat_data), GFP_KERNEL_ACCOUNT); + if (!stat_data) + return -ENOMEM; + + stat_data->kvm = kvm; + stat_data->desc = pdesc; + stat_data->kind = KVM_STAT_VCPU; + kvm->debugfs_stat_data[i] = stat_data; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), kvm->debugfs_dentry, stat_data, &stat_fops_per_vm); } @@ -4953,7 +4987,7 @@ static int kvm_debugfs_open(struct inode *inode, struct file *file, return -ENOENT; if (simple_attr_open(inode, file, get, - KVM_DBGFS_GET_MODE(stat_data->dbgfs_item) & 0222 + kvm_stats_debugfs_mode(stat_data->desc) & 0222 ? set : NULL, fmt)) { kvm_put_kvm(stat_data->kvm); @@ -4976,14 +5010,14 @@ static int kvm_debugfs_release(struct inode *inode, struct file *file) static int kvm_get_stat_per_vm(struct kvm *kvm, size_t offset, u64 *val) { - *val = *(u64 *)((void *)kvm + offset); + *val = *(u64 *)((void *)(&kvm->stat) + offset); return 0; } static int kvm_clear_stat_per_vm(struct kvm *kvm, size_t offset) { - *(u64 *)((void *)kvm + offset) = 0; + *(u64 *)((void *)(&kvm->stat) + offset) = 0; return 0; } @@ -4996,7 +5030,7 @@ static int kvm_get_stat_per_vcpu(struct kvm *kvm, size_t offset, u64 *val) *val = 0; kvm_for_each_vcpu(i, vcpu, kvm) - *val += *(u64 *)((void *)vcpu + offset); + *val += *(u64 *)((void *)(&vcpu->stat) + offset); return 0; } @@ -5007,7 +5041,7 @@ static int kvm_clear_stat_per_vcpu(struct kvm *kvm, size_t offset) struct kvm_vcpu *vcpu; kvm_for_each_vcpu(i, vcpu, kvm) - *(u64 *)((void *)vcpu + offset) = 0; + *(u64 *)((void *)(&vcpu->stat) + offset) = 0; return 0; } @@ -5017,14 +5051,14 @@ static int kvm_stat_data_get(void *data, u64 *val) int r = -EFAULT; struct kvm_stat_data *stat_data = (struct kvm_stat_data *)data; - switch (stat_data->dbgfs_item->kind) { + switch (stat_data->kind) { case KVM_STAT_VM: r = kvm_get_stat_per_vm(stat_data->kvm, - stat_data->dbgfs_item->offset, val); + stat_data->desc->desc.offset, val); break; case KVM_STAT_VCPU: r = kvm_get_stat_per_vcpu(stat_data->kvm, - stat_data->dbgfs_item->offset, val); + stat_data->desc->desc.offset, val); break; } @@ -5039,14 +5073,14 @@ static int kvm_stat_data_clear(void *data, u64 val) if (val) return -EINVAL; - switch (stat_data->dbgfs_item->kind) { + switch (stat_data->kind) { case KVM_STAT_VM: r = kvm_clear_stat_per_vm(stat_data->kvm, - stat_data->dbgfs_item->offset); + stat_data->desc->desc.offset); break; case KVM_STAT_VCPU: r = kvm_clear_stat_per_vcpu(stat_data->kvm, - stat_data->dbgfs_item->offset); + stat_data->desc->desc.offset); break; } @@ -5103,6 +5137,7 @@ static int vm_stat_clear(void *_offset, u64 val) } DEFINE_SIMPLE_ATTRIBUTE(vm_stat_fops, vm_stat_get, vm_stat_clear, "%llu\n"); +DEFINE_SIMPLE_ATTRIBUTE(vm_stat_readonly_fops, vm_stat_get, NULL, "%llu\n"); static int vcpu_stat_get(void *_offset, u64 *val) { @@ -5139,11 +5174,7 @@ static int vcpu_stat_clear(void *_offset, u64 val) DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_fops, vcpu_stat_get, vcpu_stat_clear, "%llu\n"); - -static const struct file_operations *stat_fops[] = { - [KVM_STAT_VCPU] = &vcpu_stat_fops, - [KVM_STAT_VM] = &vm_stat_fops, -}; +DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_readonly_fops, vcpu_stat_get, NULL, "%llu\n"); static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm) { @@ -5197,15 +5228,32 @@ static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm) static void kvm_init_debug(void) { - struct kvm_stats_debugfs_item *p; + const struct file_operations *fops; + struct _kvm_stats_desc *pdesc; + int i; kvm_debugfs_dir = debugfs_create_dir("kvm", NULL); - kvm_debugfs_num_entries = 0; - for (p = debugfs_entries; p->name; ++p, kvm_debugfs_num_entries++) { - debugfs_create_file(p->name, KVM_DBGFS_GET_MODE(p), - kvm_debugfs_dir, (void *)(long)p->offset, - stat_fops[p->kind]); + for (i = 0; i < kvm_vm_stats_header.header.count; ++i) { + pdesc = &kvm_vm_stats_desc[i]; + if (kvm_stats_debugfs_mode(pdesc) & 0222) + fops = &vm_stat_fops; + else + fops = &vm_stat_readonly_fops; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm_debugfs_dir, + (void *)(long)pdesc->desc.offset, fops); + } + + for (i = 0; i < kvm_vcpu_stats_header.header.count; ++i) { + pdesc = &kvm_vcpu_stats_desc[i]; + if (kvm_stats_debugfs_mode(pdesc) & 0222) + fops = &vcpu_stat_fops; + else + fops = &vcpu_stat_readonly_fops; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm_debugfs_dir, + (void *)(long)pdesc->desc.offset, fops); } } -- 2.32.0.272.g935e593368-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jing Zhang Date: Mon, 14 Jun 2021 21:21:55 +0000 Subject: [PATCH v9 5/5] KVM: stats: Remove code duplication for binary and debugfs stats Message-Id: <20210614212155.1670777-6-jingzhangos@google.com> List-Id: References: <20210614212155.1670777-1-jingzhangos@google.com> In-Reply-To: <20210614212155.1670777-1-jingzhangos@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: KVM , KVMARM , LinuxMIPS , KVMPPC , LinuxS390 , Linuxkselftest , Paolo Bonzini , Marc Zyngier , James Morse , Julien Thierry , Suzuki K Poulose , Will Deacon , Huacai Chen , Aleksandar Markovic , Thomas Bogendoerfer , Paul Mackerras , Christian Borntraeger , Janosch Frank , David Hildenbrand , Cornelia Huck , Claudio Imbrenda , Sean Christopherson , Vitaly Kuznetsov , Jim Mattson , Peter Shier , Oliver Upton , David Rientjes , Emanuele Giuseppe Esposito , David Matlack , Ricardo Koller , Krish Sadhukhan , Fuad Tabba Cc: Jing Zhang To remove code duplication, use the binary stats descriptors for debugfs interface for KVM stats. Then we only have one stats definitions for both binary and debugfs interface. Signed-off-by: Jing Zhang --- arch/arm64/kvm/guest.c | 16 ------ arch/mips/kvm/mips.c | 39 -------------- arch/powerpc/kvm/book3s.c | 33 ------------ arch/powerpc/kvm/booke.c | 25 --------- arch/s390/kvm/kvm-s390.c | 108 -------------------------------------- arch/x86/kvm/x86.c | 49 +---------------- include/linux/kvm_host.h | 43 +++++---------- include/uapi/linux/kvm.h | 4 +- virt/kvm/kvm_main.c | 104 ++++++++++++++++++++++++++---------- 9 files changed, 94 insertions(+), 327 deletions(-) diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 99842e29c2de..59486a9fef1a 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -66,22 +66,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("hvc_exit_stat", hvc_exit_stat), - VCPU_STAT("wfe_exit_stat", wfe_exit_stat), - VCPU_STAT("wfi_exit_stat", wfi_exit_stat), - VCPU_STAT("mmio_exit_user", mmio_exit_user), - VCPU_STAT("mmio_exit_kernel", mmio_exit_kernel), - VCPU_STAT("exits", exits), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - { NULL } -}; - static bool core_reg_offset_is_vreg(u64 off) { return off >= KVM_REG_ARM_CORE_REG(fp_regs.vregs) && diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 67404f0947aa..606fe3b47075 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -99,45 +99,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("wait", wait_exits), - VCPU_STAT("cache", cache_exits), - VCPU_STAT("signal", signal_exits), - VCPU_STAT("interrupt", int_exits), - VCPU_STAT("cop_unusable", cop_unusable_exits), - VCPU_STAT("tlbmod", tlbmod_exits), - VCPU_STAT("tlbmiss_ld", tlbmiss_ld_exits), - VCPU_STAT("tlbmiss_st", tlbmiss_st_exits), - VCPU_STAT("addrerr_st", addrerr_st_exits), - VCPU_STAT("addrerr_ld", addrerr_ld_exits), - VCPU_STAT("syscall", syscall_exits), - VCPU_STAT("resvd_inst", resvd_inst_exits), - VCPU_STAT("break_inst", break_inst_exits), - VCPU_STAT("trap_inst", trap_inst_exits), - VCPU_STAT("msa_fpe", msa_fpe_exits), - VCPU_STAT("fpe", fpe_exits), - VCPU_STAT("msa_disabled", msa_disabled_exits), - VCPU_STAT("flush_dcache", flush_dcache_exits), - VCPU_STAT("vz_gpsi", vz_gpsi_exits), - VCPU_STAT("vz_gsfc", vz_gsfc_exits), - VCPU_STAT("vz_hc", vz_hc_exits), - VCPU_STAT("vz_grr", vz_grr_exits), - VCPU_STAT("vz_gva", vz_gva_exits), - VCPU_STAT("vz_ghfc", vz_ghfc_exits), - VCPU_STAT("vz_gpa", vz_gpa_exits), - VCPU_STAT("vz_resvd", vz_resvd_exits), -#ifdef CONFIG_CPU_LOONGSON64 - VCPU_STAT("vz_cpucfg", vz_cpucfg_exits), -#endif - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - {NULL} -}; - bool kvm_trace_guest_mode_change; int kvm_guest_mode_change_trace_reg(void) diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 15436484e521..0c5bc4bf488c 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -102,39 +102,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("exits", sum_exits), - VCPU_STAT("mmio", mmio_exits), - VCPU_STAT("sig", signal_exits), - VCPU_STAT("sysc", syscall_exits), - VCPU_STAT("inst_emu", emulated_inst_exits), - VCPU_STAT("dec", dec_exits), - VCPU_STAT("ext_intr", ext_intr_exits), - VCPU_STAT("queue_intr", queue_intr), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("halt_wait_ns", halt_wait_ns), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT("halt_successful_wait", halt_successful_wait), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("pf_storage", pf_storage), - VCPU_STAT("sp_storage", sp_storage), - VCPU_STAT("pf_instruc", pf_instruc), - VCPU_STAT("sp_instruc", sp_instruc), - VCPU_STAT("ld", ld), - VCPU_STAT("ld_slow", ld_slow), - VCPU_STAT("st", st), - VCPU_STAT("st_slow", st_slow), - VCPU_STAT("pthru_all", pthru_all), - VCPU_STAT("pthru_host", pthru_host), - VCPU_STAT("pthru_bad_aff", pthru_bad_aff), - VM_STAT("largepages_2M", num_2M_pages, .mode = 0444), - VM_STAT("largepages_1G", num_1G_pages, .mode = 0444), - { NULL } -}; - static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, unsigned long pending_now, unsigned long old_pending) { diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index fbc9b7b6af57..888885b574cf 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -93,31 +93,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("mmio", mmio_exits), - VCPU_STAT("sig", signal_exits), - VCPU_STAT("itlb_r", itlb_real_miss_exits), - VCPU_STAT("itlb_v", itlb_virt_miss_exits), - VCPU_STAT("dtlb_r", dtlb_real_miss_exits), - VCPU_STAT("dtlb_v", dtlb_virt_miss_exits), - VCPU_STAT("sysc", syscall_exits), - VCPU_STAT("isi", isi_exits), - VCPU_STAT("dsi", dsi_exits), - VCPU_STAT("inst_emu", emulated_inst_exits), - VCPU_STAT("dec", dec_exits), - VCPU_STAT("ext_intr", ext_intr_exits), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("doorbell", dbell_exits), - VCPU_STAT("guest doorbell", gdbell_exits), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VM_STAT_GENERIC("remote_tlb_flush", remote_tlb_flush), - { NULL } -}; - /* TODO: use vcpu_printf() */ void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu) { diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ba50dd775fa8..50dab32cbef1 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -188,114 +188,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("userspace_handled", exit_userspace), - VCPU_STAT("exit_null", exit_null), - VCPU_STAT("pfault_sync", pfault_sync), - VCPU_STAT("exit_validity", exit_validity), - VCPU_STAT("exit_stop_request", exit_stop_request), - VCPU_STAT("exit_external_request", exit_external_request), - VCPU_STAT("exit_io_request", exit_io_request), - VCPU_STAT("exit_external_interrupt", exit_external_interrupt), - VCPU_STAT("exit_instruction", exit_instruction), - VCPU_STAT("exit_pei", exit_pei), - VCPU_STAT("exit_program_interruption", exit_program_interruption), - VCPU_STAT("exit_instr_and_program_int", exit_instr_and_program), - VCPU_STAT("exit_operation_exception", exit_operation_exception), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT("halt_no_poll_steal", halt_no_poll_steal), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("instruction_lctlg", instruction_lctlg), - VCPU_STAT("instruction_lctl", instruction_lctl), - VCPU_STAT("instruction_stctl", instruction_stctl), - VCPU_STAT("instruction_stctg", instruction_stctg), - VCPU_STAT("deliver_ckc", deliver_ckc), - VCPU_STAT("deliver_cputm", deliver_cputm), - VCPU_STAT("deliver_emergency_signal", deliver_emergency_signal), - VCPU_STAT("deliver_external_call", deliver_external_call), - VCPU_STAT("deliver_service_signal", deliver_service_signal), - VCPU_STAT("deliver_virtio", deliver_virtio), - VCPU_STAT("deliver_stop_signal", deliver_stop_signal), - VCPU_STAT("deliver_prefix_signal", deliver_prefix_signal), - VCPU_STAT("deliver_restart_signal", deliver_restart_signal), - VCPU_STAT("deliver_program", deliver_program), - VCPU_STAT("deliver_io", deliver_io), - VCPU_STAT("deliver_machine_check", deliver_machine_check), - VCPU_STAT("exit_wait_state", exit_wait_state), - VCPU_STAT("inject_ckc", inject_ckc), - VCPU_STAT("inject_cputm", inject_cputm), - VCPU_STAT("inject_external_call", inject_external_call), - VM_STAT("inject_float_mchk", inject_float_mchk), - VCPU_STAT("inject_emergency_signal", inject_emergency_signal), - VM_STAT("inject_io", inject_io), - VCPU_STAT("inject_mchk", inject_mchk), - VM_STAT("inject_pfault_done", inject_pfault_done), - VCPU_STAT("inject_program", inject_program), - VCPU_STAT("inject_restart", inject_restart), - VM_STAT("inject_service_signal", inject_service_signal), - VCPU_STAT("inject_set_prefix", inject_set_prefix), - VCPU_STAT("inject_stop_signal", inject_stop_signal), - VCPU_STAT("inject_pfault_init", inject_pfault_init), - VM_STAT("inject_virtio", inject_virtio), - VCPU_STAT("instruction_epsw", instruction_epsw), - VCPU_STAT("instruction_gs", instruction_gs), - VCPU_STAT("instruction_io_other", instruction_io_other), - VCPU_STAT("instruction_lpsw", instruction_lpsw), - VCPU_STAT("instruction_lpswe", instruction_lpswe), - VCPU_STAT("instruction_pfmf", instruction_pfmf), - VCPU_STAT("instruction_ptff", instruction_ptff), - VCPU_STAT("instruction_stidp", instruction_stidp), - VCPU_STAT("instruction_sck", instruction_sck), - VCPU_STAT("instruction_sckpf", instruction_sckpf), - VCPU_STAT("instruction_spx", instruction_spx), - VCPU_STAT("instruction_stpx", instruction_stpx), - VCPU_STAT("instruction_stap", instruction_stap), - VCPU_STAT("instruction_iske", instruction_iske), - VCPU_STAT("instruction_ri", instruction_ri), - VCPU_STAT("instruction_rrbe", instruction_rrbe), - VCPU_STAT("instruction_sske", instruction_sske), - VCPU_STAT("instruction_ipte_interlock", instruction_ipte_interlock), - VCPU_STAT("instruction_essa", instruction_essa), - VCPU_STAT("instruction_stsi", instruction_stsi), - VCPU_STAT("instruction_stfl", instruction_stfl), - VCPU_STAT("instruction_tb", instruction_tb), - VCPU_STAT("instruction_tpi", instruction_tpi), - VCPU_STAT("instruction_tprot", instruction_tprot), - VCPU_STAT("instruction_tsch", instruction_tsch), - VCPU_STAT("instruction_sthyi", instruction_sthyi), - VCPU_STAT("instruction_sie", instruction_sie), - VCPU_STAT("instruction_sigp_sense", instruction_sigp_sense), - VCPU_STAT("instruction_sigp_sense_running", instruction_sigp_sense_running), - VCPU_STAT("instruction_sigp_external_call", instruction_sigp_external_call), - VCPU_STAT("instruction_sigp_emergency", instruction_sigp_emergency), - VCPU_STAT("instruction_sigp_cond_emergency", instruction_sigp_cond_emergency), - VCPU_STAT("instruction_sigp_start", instruction_sigp_start), - VCPU_STAT("instruction_sigp_stop", instruction_sigp_stop), - VCPU_STAT("instruction_sigp_stop_store_status", instruction_sigp_stop_store_status), - VCPU_STAT("instruction_sigp_store_status", instruction_sigp_store_status), - VCPU_STAT("instruction_sigp_store_adtl_status", instruction_sigp_store_adtl_status), - VCPU_STAT("instruction_sigp_set_arch", instruction_sigp_arch), - VCPU_STAT("instruction_sigp_set_prefix", instruction_sigp_prefix), - VCPU_STAT("instruction_sigp_restart", instruction_sigp_restart), - VCPU_STAT("instruction_sigp_cpu_reset", instruction_sigp_cpu_reset), - VCPU_STAT("instruction_sigp_init_cpu_reset", instruction_sigp_init_cpu_reset), - VCPU_STAT("instruction_sigp_unknown", instruction_sigp_unknown), - VCPU_STAT("instruction_diag_10", diagnose_10), - VCPU_STAT("instruction_diag_44", diagnose_44), - VCPU_STAT("instruction_diag_9c", diagnose_9c), - VCPU_STAT("diag_9c_ignored", diagnose_9c_ignored), - VCPU_STAT("diag_9c_forward", diagnose_9c_forward), - VCPU_STAT("instruction_diag_258", diagnose_258), - VCPU_STAT("instruction_diag_308", diagnose_308), - VCPU_STAT("instruction_diag_500", diagnose_500), - VCPU_STAT("instruction_diag_other", diagnose_other), - { NULL } -}; - /* allow nested virtualization in KVM (if enabled by user space) */ static int nested; module_param(nested, int, S_IRUGO); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 84438573b529..470a14c3c911 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -234,7 +234,7 @@ struct _kvm_stats_desc kvm_vm_stats_desc[] = { STATS_DESC_ICOUNTER(VM, mmu_unsync), STATS_DESC_ICOUNTER(VM, lpages), STATS_DESC_ICOUNTER(VM, nx_lpage_splits), - STATS_DESC_ICOUNTER(VM, max_mmu_page_hash_collisions) + STATS_DESC_PCOUNTER(VM, max_mmu_page_hash_collisions) }; static_assert(ARRAY_SIZE(kvm_vm_stats_desc) = sizeof(struct kvm_vm_stat) / sizeof(u64)); @@ -291,53 +291,6 @@ struct _kvm_stats_header kvm_vcpu_stats_header = { } }; -struct kvm_stats_debugfs_item debugfs_entries[] = { - VCPU_STAT("pf_fixed", pf_fixed), - VCPU_STAT("pf_guest", pf_guest), - VCPU_STAT("tlb_flush", tlb_flush), - VCPU_STAT("invlpg", invlpg), - VCPU_STAT("exits", exits), - VCPU_STAT("io_exits", io_exits), - VCPU_STAT("mmio_exits", mmio_exits), - VCPU_STAT("signal_exits", signal_exits), - VCPU_STAT("irq_window", irq_window_exits), - VCPU_STAT("nmi_window", nmi_window_exits), - VCPU_STAT("halt_exits", halt_exits), - VCPU_STAT_GENERIC("halt_successful_poll", halt_successful_poll), - VCPU_STAT_GENERIC("halt_attempted_poll", halt_attempted_poll), - VCPU_STAT_GENERIC("halt_poll_invalid", halt_poll_invalid), - VCPU_STAT_GENERIC("halt_wakeup", halt_wakeup), - VCPU_STAT("hypercalls", hypercalls), - VCPU_STAT("request_irq", request_irq_exits), - VCPU_STAT("irq_exits", irq_exits), - VCPU_STAT("host_state_reload", host_state_reload), - VCPU_STAT("fpu_reload", fpu_reload), - VCPU_STAT("insn_emulation", insn_emulation), - VCPU_STAT("insn_emulation_fail", insn_emulation_fail), - VCPU_STAT("irq_injections", irq_injections), - VCPU_STAT("nmi_injections", nmi_injections), - VCPU_STAT("req_event", req_event), - VCPU_STAT("l1d_flush", l1d_flush), - VCPU_STAT_GENERIC("halt_poll_success_ns", halt_poll_success_ns), - VCPU_STAT_GENERIC("halt_poll_fail_ns", halt_poll_fail_ns), - VCPU_STAT("nested_run", nested_run), - VCPU_STAT("directed_yield_attempted", directed_yield_attempted), - VCPU_STAT("directed_yield_successful", directed_yield_successful), - VCPU_STAT("guest_mode", guest_mode), - VM_STAT("mmu_shadow_zapped", mmu_shadow_zapped), - VM_STAT("mmu_pte_write", mmu_pte_write), - VM_STAT("mmu_pde_zapped", mmu_pde_zapped), - VM_STAT("mmu_flooded", mmu_flooded), - VM_STAT("mmu_recycled", mmu_recycled), - VM_STAT("mmu_cache_miss", mmu_cache_miss), - VM_STAT("mmu_unsync", mmu_unsync), - VM_STAT_GENERIC("remote_tlb_flush", remote_tlb_flush), - VM_STAT("largepages", lpages, .mode = 0444), - VM_STAT("nx_largepages_splitted", nx_lpage_splits, .mode = 0444), - VM_STAT("max_mmu_page_hash_collisions", max_mmu_page_hash_collisions), - { NULL } -}; - u64 __read_mostly host_xcr0; u64 __read_mostly supported_xcr0; EXPORT_SYMBOL_GPL(supported_xcr0); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 692af9177c9f..6b353d6c50fd 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1262,14 +1262,8 @@ enum kvm_stat_kind { struct kvm_stat_data { struct kvm *kvm; - struct kvm_stats_debugfs_item *dbgfs_item; -}; - -struct kvm_stats_debugfs_item { - const char *name; - int offset; + struct _kvm_stats_desc *desc; enum kvm_stat_kind kind; - int mode; }; struct _kvm_stats_header { @@ -1283,24 +1277,11 @@ struct _kvm_stats_desc { char name[KVM_STATS_NAME_LEN]; }; -#define KVM_DBGFS_GET_MODE(dbgfs_item) \ - ((dbgfs_item)->mode ? (dbgfs_item)->mode : 0644) - -#define VM_STAT(n, x, ...) \ - { n, offsetof(struct kvm, stat.x), KVM_STAT_VM, ## __VA_ARGS__ } -#define VCPU_STAT(n, x, ...) \ - { n, offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU, ## __VA_ARGS__ } -#define VM_STAT_GENERIC(n, x, ...) \ - { n, offsetof(struct kvm, stat.generic.x), KVM_STAT_VM, ## __VA_ARGS__ } -#define VCPU_STAT_GENERIC(n, x, ...) \ - { n, offsetof(struct kvm_vcpu, stat.generic.x), \ - KVM_STAT_VCPU, ## __VA_ARGS__ } - #define STATS_DESC_COMMON(type, unit, base, exp) \ .flags = type | unit | base | \ - BUILD_BUG_ON_ZERO(type & ~KVM_STATS_TYPE_MASK) | \ - BUILD_BUG_ON_ZERO(unit & ~KVM_STATS_UNIT_MASK) | \ - BUILD_BUG_ON_ZERO(base & ~KVM_STATS_BASE_MASK), \ + BUILD_BUG_ON_ZERO(type & ~KVM_STATS_TYPE_MASK) | \ + BUILD_BUG_ON_ZERO(unit & ~KVM_STATS_UNIT_MASK) | \ + BUILD_BUG_ON_ZERO(base & ~KVM_STATS_BASE_MASK), \ .exponent = exp, \ .size = 1 @@ -1341,19 +1322,24 @@ struct _kvm_stats_desc { SCOPE##_STATS_DESC(stat, type, unit, base, exp) #define STATS_DESC_CUMULATIVE(SCOPE, name, unit, base, exponent) \ - STATS_DESC(SCOPE, name, KVM_STATS_TYPE_CUMULATIVE, \ - unit, base, exponent) + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_CUMULATIVE, unit, base, exponent) #define STATS_DESC_INSTANT(SCOPE, name, unit, base, exponent) \ - STATS_DESC(SCOPE, name, KVM_STATS_TYPE_INSTANT, unit, base, exponent) \ + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_INSTANT, unit, base, exponent) +#define STATS_DESC_PEAK(SCOPE, name, unit, base, exponent) \ + STATS_DESC(SCOPE, name, KVM_STATS_TYPE_PEAK, unit, base, exponent) -/* Cumulative counter */ +/* Cumulative read/write counter */ #define STATS_DESC_COUNTER(SCOPE, name) \ STATS_DESC_CUMULATIVE(SCOPE, name, KVM_STATS_UNIT_NONE, \ KVM_STATS_BASE_POW10, 0) -/* Instantaneous counter */ +/* Instantaneous read only counter */ #define STATS_DESC_ICOUNTER(SCOPE, name) \ STATS_DESC_INSTANT(SCOPE, name, KVM_STATS_UNIT_NONE, \ KVM_STATS_BASE_POW10, 0) +/* Instantaneous read/write counter */ +#define STATS_DESC_PCOUNTER(SCOPE, name) \ + STATS_DESC_PEAK(SCOPE, name, KVM_STATS_UNIT_NONE, \ + KVM_STATS_BASE_POW10, 0) /* Cumulative clock cycles */ #define STATS_DESC_CYCLE(SCOPE, name) \ @@ -1443,7 +1429,6 @@ struct _kvm_stats_desc { STATS_DESC_TIME_NSEC(VCPU_GENERIC, halt_poll_success_ns), \ STATS_DESC_TIME_NSEC(VCPU_GENERIC, halt_poll_fail_ns) -extern struct kvm_stats_debugfs_item debugfs_entries[]; extern struct dentry *kvm_debugfs_dir; extern struct _kvm_stats_header kvm_vm_stats_header; extern struct _kvm_stats_header kvm_vcpu_stats_header; diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d6e97b577d01..81ad814cdf24 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1920,7 +1920,9 @@ struct kvm_stats_header { #define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT) #define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT) #define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT) -#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_INSTANT +/* Peak type is used as read/write instant counters */ +#define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT) +#define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_PEAK #define KVM_STATS_UNIT_SHIFT 4 #define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f5bea71ea61c..74f2d0567f3e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -115,7 +115,6 @@ static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_running_vcpu); struct dentry *kvm_debugfs_dir; EXPORT_SYMBOL_GPL(kvm_debugfs_dir); -static int kvm_debugfs_num_entries; static const struct file_operations stat_fops_per_vm; static long kvm_vcpu_ioctl(struct file *file, unsigned int ioctl, @@ -860,9 +859,24 @@ static void kvm_free_memslots(struct kvm *kvm, struct kvm_memslots *slots) kvfree(slots); } +static umode_t kvm_stats_debugfs_mode(struct _kvm_stats_desc *pdesc) +{ + switch (pdesc->desc.flags & KVM_STATS_TYPE_MASK) { + case KVM_STATS_TYPE_INSTANT: + return 0444; + case KVM_STATS_TYPE_CUMULATIVE: + case KVM_STATS_TYPE_PEAK: + default: + return 0644; + } +} + + static void kvm_destroy_vm_debugfs(struct kvm *kvm) { int i; + int kvm_debugfs_num_entries = kvm_vm_stats_header.header.count + + kvm_vcpu_stats_header.header.count; if (!kvm->debugfs_dentry) return; @@ -880,7 +894,10 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd) { char dir_name[ITOA_MAX_LEN * 2]; struct kvm_stat_data *stat_data; - struct kvm_stats_debugfs_item *p; + struct _kvm_stats_desc *pdesc; + int i; + int kvm_debugfs_num_entries = kvm_vm_stats_header.header.count + + kvm_vcpu_stats_header.header.count; if (!debugfs_initialized()) return 0; @@ -894,15 +911,32 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd) if (!kvm->debugfs_stat_data) return -ENOMEM; - for (p = debugfs_entries; p->name; p++) { + for (i = 0; i < kvm_vm_stats_header.header.count; ++i) { + pdesc = &kvm_vm_stats_desc[i]; stat_data = kzalloc(sizeof(*stat_data), GFP_KERNEL_ACCOUNT); if (!stat_data) return -ENOMEM; stat_data->kvm = kvm; - stat_data->dbgfs_item = p; - kvm->debugfs_stat_data[p - debugfs_entries] = stat_data; - debugfs_create_file(p->name, KVM_DBGFS_GET_MODE(p), + stat_data->desc = pdesc; + stat_data->kind = KVM_STAT_VM; + kvm->debugfs_stat_data[i] = stat_data; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm->debugfs_dentry, stat_data, + &stat_fops_per_vm); + } + + for (i = 0; i < kvm_vcpu_stats_header.header.count; ++i) { + pdesc = &kvm_vcpu_stats_desc[i]; + stat_data = kzalloc(sizeof(*stat_data), GFP_KERNEL_ACCOUNT); + if (!stat_data) + return -ENOMEM; + + stat_data->kvm = kvm; + stat_data->desc = pdesc; + stat_data->kind = KVM_STAT_VCPU; + kvm->debugfs_stat_data[i] = stat_data; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), kvm->debugfs_dentry, stat_data, &stat_fops_per_vm); } @@ -4953,7 +4987,7 @@ static int kvm_debugfs_open(struct inode *inode, struct file *file, return -ENOENT; if (simple_attr_open(inode, file, get, - KVM_DBGFS_GET_MODE(stat_data->dbgfs_item) & 0222 + kvm_stats_debugfs_mode(stat_data->desc) & 0222 ? set : NULL, fmt)) { kvm_put_kvm(stat_data->kvm); @@ -4976,14 +5010,14 @@ static int kvm_debugfs_release(struct inode *inode, struct file *file) static int kvm_get_stat_per_vm(struct kvm *kvm, size_t offset, u64 *val) { - *val = *(u64 *)((void *)kvm + offset); + *val = *(u64 *)((void *)(&kvm->stat) + offset); return 0; } static int kvm_clear_stat_per_vm(struct kvm *kvm, size_t offset) { - *(u64 *)((void *)kvm + offset) = 0; + *(u64 *)((void *)(&kvm->stat) + offset) = 0; return 0; } @@ -4996,7 +5030,7 @@ static int kvm_get_stat_per_vcpu(struct kvm *kvm, size_t offset, u64 *val) *val = 0; kvm_for_each_vcpu(i, vcpu, kvm) - *val += *(u64 *)((void *)vcpu + offset); + *val += *(u64 *)((void *)(&vcpu->stat) + offset); return 0; } @@ -5007,7 +5041,7 @@ static int kvm_clear_stat_per_vcpu(struct kvm *kvm, size_t offset) struct kvm_vcpu *vcpu; kvm_for_each_vcpu(i, vcpu, kvm) - *(u64 *)((void *)vcpu + offset) = 0; + *(u64 *)((void *)(&vcpu->stat) + offset) = 0; return 0; } @@ -5017,14 +5051,14 @@ static int kvm_stat_data_get(void *data, u64 *val) int r = -EFAULT; struct kvm_stat_data *stat_data = (struct kvm_stat_data *)data; - switch (stat_data->dbgfs_item->kind) { + switch (stat_data->kind) { case KVM_STAT_VM: r = kvm_get_stat_per_vm(stat_data->kvm, - stat_data->dbgfs_item->offset, val); + stat_data->desc->desc.offset, val); break; case KVM_STAT_VCPU: r = kvm_get_stat_per_vcpu(stat_data->kvm, - stat_data->dbgfs_item->offset, val); + stat_data->desc->desc.offset, val); break; } @@ -5039,14 +5073,14 @@ static int kvm_stat_data_clear(void *data, u64 val) if (val) return -EINVAL; - switch (stat_data->dbgfs_item->kind) { + switch (stat_data->kind) { case KVM_STAT_VM: r = kvm_clear_stat_per_vm(stat_data->kvm, - stat_data->dbgfs_item->offset); + stat_data->desc->desc.offset); break; case KVM_STAT_VCPU: r = kvm_clear_stat_per_vcpu(stat_data->kvm, - stat_data->dbgfs_item->offset); + stat_data->desc->desc.offset); break; } @@ -5103,6 +5137,7 @@ static int vm_stat_clear(void *_offset, u64 val) } DEFINE_SIMPLE_ATTRIBUTE(vm_stat_fops, vm_stat_get, vm_stat_clear, "%llu\n"); +DEFINE_SIMPLE_ATTRIBUTE(vm_stat_readonly_fops, vm_stat_get, NULL, "%llu\n"); static int vcpu_stat_get(void *_offset, u64 *val) { @@ -5139,11 +5174,7 @@ static int vcpu_stat_clear(void *_offset, u64 val) DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_fops, vcpu_stat_get, vcpu_stat_clear, "%llu\n"); - -static const struct file_operations *stat_fops[] = { - [KVM_STAT_VCPU] = &vcpu_stat_fops, - [KVM_STAT_VM] = &vm_stat_fops, -}; +DEFINE_SIMPLE_ATTRIBUTE(vcpu_stat_readonly_fops, vcpu_stat_get, NULL, "%llu\n"); static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm) { @@ -5197,15 +5228,32 @@ static void kvm_uevent_notify_change(unsigned int type, struct kvm *kvm) static void kvm_init_debug(void) { - struct kvm_stats_debugfs_item *p; + const struct file_operations *fops; + struct _kvm_stats_desc *pdesc; + int i; kvm_debugfs_dir = debugfs_create_dir("kvm", NULL); - kvm_debugfs_num_entries = 0; - for (p = debugfs_entries; p->name; ++p, kvm_debugfs_num_entries++) { - debugfs_create_file(p->name, KVM_DBGFS_GET_MODE(p), - kvm_debugfs_dir, (void *)(long)p->offset, - stat_fops[p->kind]); + for (i = 0; i < kvm_vm_stats_header.header.count; ++i) { + pdesc = &kvm_vm_stats_desc[i]; + if (kvm_stats_debugfs_mode(pdesc) & 0222) + fops = &vm_stat_fops; + else + fops = &vm_stat_readonly_fops; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm_debugfs_dir, + (void *)(long)pdesc->desc.offset, fops); + } + + for (i = 0; i < kvm_vcpu_stats_header.header.count; ++i) { + pdesc = &kvm_vcpu_stats_desc[i]; + if (kvm_stats_debugfs_mode(pdesc) & 0222) + fops = &vcpu_stat_fops; + else + fops = &vcpu_stat_readonly_fops; + debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc), + kvm_debugfs_dir, + (void *)(long)pdesc->desc.offset, fops); } } -- 2.32.0.272.g935e593368-goog