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=-23.3 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, URIBL_BLOCKED,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 3643BC4338F for ; Wed, 28 Jul 2021 19:02:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 12FEB60F9B for ; Wed, 28 Jul 2021 19:02:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231514AbhG1TCu (ORCPT ); Wed, 28 Jul 2021 15:02:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46454 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231420AbhG1TCs (ORCPT ); Wed, 28 Jul 2021 15:02:48 -0400 Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [IPv6:2a00:1450:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3116DC061757 for ; Wed, 28 Jul 2021 12:02:46 -0700 (PDT) Received: by mail-lf1-x136.google.com with SMTP id r26so5920079lfp.5 for ; Wed, 28 Jul 2021 12:02:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=WxJfCRcm28Q2mtsiHw3xjSJ0DqRCRRYstcd9Q20/xQQ=; b=h1XD5KmacsdUAtbaHNScOkc4DLg84/eQEn/iMfLNe1maR49bt1wCDsB+EWz924QuhM yg7UwljEOJ8uTiBJCd5MaKIN9FcLfzEyk4sjhj/afJbP5n1aNqKQTWxRAew7fegon5ju yOjQTYyseuc2AAyc8ir3EXAnKfdZBqBPhAlQNqBsKsSXCvlmnd0naeobSxKW9xwxPSpn 8xwpzF+pzAoouVn63N/KAEyp6KHPP/6HMjX0nwn0QU/VFR1P4dzUdp94aQ22t9qw3dQy ssDDge8K9XRwwy2Xqt1I6umnjyXtbdWtSeBwjq49+owOqUN6FnoJ1mwuf6g+iNyuOAAF HvGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=WxJfCRcm28Q2mtsiHw3xjSJ0DqRCRRYstcd9Q20/xQQ=; b=C0DLAyDZcQUV7U+xUZGTAmSbOLuEPpqFSQiXG+hkkfNu+EWoTd1d21CEbTmvaURPtP 8Bf84FfKpESm5yG2mJzv6ol0uadKRVXS8kyk/Fre13u3SLoeb5Z13bpcelKVLrzfDV3V bz3O5BDiblbwxtw5G2CsftI+Sud/N/xNAD+yDRuz2r2VAPpJUGdknwI3pxvvttBaZSsU rxXdy15a+3BpVcqflqNG+l9HHkPmZ0UR3jINRZt0SD5lfJR9k8P9VqZ3M+LSt3tLhWX4 1VDg76yj1CmS6Wg9Gg6Qda1QcRJFKZPnWf3sUSzq+mdvCEaB2HtiYyYqQA+err4g03VD 7BdA== X-Gm-Message-State: AOAM533iPbeIAKbXPfYu0OKi6L2T039cWHYKzMtRZWj6ODMJtWLX5WvZ UFZZhCn19LOa95Kg1xFgKzJ7/TNtDGczgQcmYBXs6PEcBvi2uQ== X-Google-Smtp-Source: ABdhPJz1ZBo2qfIXLXj9J9AuWps3bxG9GMcoWTo51fL/O5qgHVUFf00HxQNpDGyfKWNQadpw2tNsh9g2M3liJMGm4iE= X-Received: by 2002:a05:6512:3b94:: with SMTP id g20mr784842lfv.0.1627498964165; Wed, 28 Jul 2021 12:02:44 -0700 (PDT) MIME-Version: 1.0 References: <20210727103251.16561-1-pbonzini@redhat.com> In-Reply-To: <20210727103251.16561-1-pbonzini@redhat.com> From: Oliver Upton Date: Wed, 28 Jul 2021 12:02:33 -0700 Message-ID: Subject: Re: [PATCH] KVM: ARM: count remote TLB flushes To: Paolo Bonzini Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, maz@kernel.org, kvmarm@lists.cs.columbia.edu, Jing Zhang Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 27, 2021 at 3:33 AM Paolo Bonzini wrote: > > KVM/ARM has an architecture-specific implementation of > kvm_flush_remote_tlbs; however, unlike the generic one, > it does not count the flushes in kvm->stat.remote_tlb_flush, > so that it inexorably remained stuck to zero. > > Signed-off-by: Paolo Bonzini Reviewed-by: Oliver Upton > --- > arch/arm64/kvm/mmu.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c > index c10207fed2f3..6cf16b43bfcc 100644 > --- a/arch/arm64/kvm/mmu.c > +++ b/arch/arm64/kvm/mmu.c > @@ -81,6 +81,7 @@ static bool memslot_is_logging(struct kvm_memory_slot *memslot) > void kvm_flush_remote_tlbs(struct kvm *kvm) > { > kvm_call_hyp(__kvm_tlb_flush_vmid, &kvm->arch.mmu); > + ++kvm->stat.generic.remote_tlb_flush; > } > > static bool kvm_is_device_pfn(unsigned long pfn) > -- > 2.31.1 > > _______________________________________________ > kvmarm mailing list > kvmarm@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/kvmarm