From patchwork Mon May 31 17:04:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Hyman Huang X-Patchwork-Id: 12289675 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 320EEC47080 for ; Mon, 31 May 2021 17:15:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0E64610C9 for ; Mon, 31 May 2021 17:15:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233184AbhEaRQz (ORCPT ); Mon, 31 May 2021 13:16:55 -0400 Received: from prt-mail.chinatelecom.cn ([42.123.76.228]:57600 "EHLO chinatelecom.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234694AbhEaRPQ (ORCPT ); Mon, 31 May 2021 13:15:16 -0400 HMM_SOURCE_IP: 172.18.0.218:47064.1907396775 HMM_ATTACHE_NUM: 0000 HMM_SOURCE_TYPE: SMTP Received: from clientip-202.80.192.38?logid-29ae52c8a85445e99aab72860cfd77f0 (unknown [172.18.0.218]) by chinatelecom.cn (HERMES) with SMTP id 4D8B52800F6; Tue, 1 Jun 2021 01:04:12 +0800 (CST) X-189-SAVE-TO-SEND: +huangy81@chinatelecom.cn Received: from ([172.18.0.218]) by app0025 with ESMTP id 29ae52c8a85445e99aab72860cfd77f0 for qemu-devel@nongnu.org; Tue Jun 1 01:04:30 2021 X-Transaction-ID: 29ae52c8a85445e99aab72860cfd77f0 X-filter-score: filter<0> X-Real-From: huangy81@chinatelecom.cn X-Receive-IP: 172.18.0.218 X-MEDUSA-Status: 0 Sender: huangy81@chinatelecom.cn From: huangy81@chinatelecom.cn To: Cc: Paolo Bonzini , , Juan Quintela , "Dr. David Alan Gilbert" , Peter Xu , Hyman Subject: [PATCH v1 2/6] KVM: introduce dirty_pages into CPUState Date: Tue, 1 Jun 2021 01:04:06 +0800 Message-Id: <78cc154863754a93d88070d1fae9fed6a1ec5f01.1622479161.git.huangy81@chinatelecom.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Hyman Huang(黄勇) dirty_pages is used to calculate dirtyrate via dirty ring, when enabled, kvm-reaper will increase the dirty pages after gfns being dirtied. Signed-off-by: Hyman Huang(黄勇) --- accel/kvm/kvm-all.c | 6 ++++++ include/hw/core/cpu.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 2e96b77b31..52cba1b094 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -506,6 +506,9 @@ int kvm_init_vcpu(CPUState *cpu, Error **errp) } } + cpu->dirty_pages = 0; + cpu->stat_dirty_pages = false; + ret = kvm_arch_init_vcpu(cpu); if (ret < 0) { error_setg_errno(errp, -ret, @@ -739,6 +742,9 @@ static uint32_t kvm_dirty_ring_reap_one(KVMState *s, CPUState *cpu) cur->offset); dirty_gfn_set_collected(cur); trace_kvm_dirty_ring_page(cpu->cpu_index, fetch, cur->offset); + if (cpu->stat_dirty_pages) { + cpu->dirty_pages++; + } fetch++; count++; } diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index 044f668a6e..973c193501 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -375,6 +375,8 @@ struct CPUState { struct kvm_run *kvm_run; struct kvm_dirty_gfn *kvm_dirty_gfns; uint32_t kvm_fetch_index; + uint64_t dirty_pages; + bool stat_dirty_pages; /* Used for events with 'vcpu' and *without* the 'disabled' properties */ DECLARE_BITMAP(trace_dstate_delayed, CPU_TRACE_DSTATE_MAX_EVENTS);