From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BA78ACD4F3C for ; Tue, 19 May 2026 15:36:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=EBtgkB1QXUyi3mYTNFKpF7EItyFRQKEeQN2yXHx1XO4=; b=gjt6qIjl0QhDnml/kmpLL42Bi0 xtvD2+2VML0lL5v59Mv6s2uxj9bSsZVAL/r/1Za/rDblUF8Dup0/FppPMBXd/iku1qSGMbD+pU4PG 7e+HNLoMOEVwl6EyPEQuqB9iWdD/veLRAjdzOtPPOhjRO1Kuupc6gtnrvjeh5tUmzh23rS1yK823u Sk9M7oPvCnXRCdiS1n6yLkcx1zO0FciKNtY3gTYCC1hHlb4gzm+LDco+pfrXTkMTersENcjQb6+WU zogHAFsEqIN8xnMy2Zl8yuZDSD9Xuc2nO0j5cTt6uiBNt1ZYlKNTXHVNWAaDeDierwq840EfP51VA MaTdS1QQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPMUE-000000024sG-1fc5; Tue, 19 May 2026 15:36:02 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPMUA-000000024r4-3cWJ for linux-arm-kernel@lists.infradead.org; Tue, 19 May 2026 15:36:00 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 46E243528; Tue, 19 May 2026 08:35:52 -0700 (PDT) Received: from devkitleo.cambridge.arm.com (devkitleo.cambridge.arm.com [10.1.196.90]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 06D2F3F632; Tue, 19 May 2026 08:35:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1779204957; bh=ZkRz0E7rghIRIQ6Vas5WZriK1yQc+rUOKfruBiITXEI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Tr5Iy+eFwtAYt3ObIw+VJv4hqD8NnNXrVImS/KaM3B7UPx2teDebcJMl0o/sqAvrd eVGCpt/7KscfUVWRWqRTlVXYKxM8aygDha8hQMG0DXl0eAjjoV6H0iM0KGW2GzQFrT S5BU9CCBk23N6+39Bw8htB9d60IxSCooMRuRfvlI= From: Leonardo Bras To: Will Deacon Cc: Leonardo Bras , maz@kernel.org, oupton@kernel.org, catalin.marinas@arm.com, corbet@lwn.net, pbonzini@redhat.com, Tian Zheng , kernel-team@android.com, yuzenghui@huawei.com, wangzhou1@hisilicon.com, liuyonglong@huawei.com, yezhenyu2@huawei.com, linuxarm@huawei.com, joey.gouly@arm.com, kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, skhan@linuxfoundation.org, suzuki.poulose@arm.com, Jonathan Cameron Subject: Re: [PATCH v3 0/5] Support the FEAT_HDBSS introduced in Armv9.5 Date: Tue, 19 May 2026 16:35:47 +0100 Message-ID: X-Mailer: git-send-email 2.54.0 In-Reply-To: <177918656142.736362.17906576792384645789.b4-ty@kernel.org> References: <20260225040421.2683931-1-zhengtian10@huawei.com> <177918656142.736362.17906576792384645789.b4-ty@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260519_083559_028366_5BB9DC8A X-CRM114-Status: GOOD ( 13.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, May 19, 2026 at 04:23:12PM +0100, Will Deacon wrote: > On Wed, 25 Feb 2026 12:04:16 +0800, Tian Zheng wrote: > > This series of patches add support to the Hardware Dirty state tracking > > Structure(HDBSS) feature, which is introduced by the ARM architecture > > in the DDI0601(ID121123) version. > > > > The HDBSS feature is an extension to the architecture that enhances > > tracking translation table descriptors' dirty state, identified as > > FEAT_HDBSS. This feature utilizes hardware assistance to achieve dirty > > page tracking, aiming to significantly reduce the overhead of scanning > > for dirty pages. > > > > [...] > > Applied sysreg definitions to arm64 (for-next/sysregs), thanks! > > [1/5] arm64/sysreg: Add HDBSS related register information > https://git.kernel.org/arm64/c/72f7be0c2e30 > Thanks! Leo > Cheers, > -- > Will > > https://fixes.arm64.dev > https://next.arm64.dev > https://will.arm64.dev