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 187E2CD4F5B for ; Tue, 19 May 2026 15:25:15 +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=P7aAmXBe2juvIv144FcT2fD+1TkvLcZB+vTCMLFQ6uc=; b=UMrhrE/YCucVZIyndmVMWtng9a 83P2fqnQkpdR1ywDiUKPuAKRktD9gUifmyD7eG/99EZk0uXR3iECQ0oGkJBvqNDjNH8w3Rx7L1YBr g73hIKsmqZzKaxr1p2FG3S8CkRyaKMNfGKcGaWwctk+nQu34vOo0KrZtvHCwQ/MlHQtqMTH8hi3u9 wfnn3vsat164yntyi46+fNQMGoSrSlIwhQ09igzt9jHeS869a/cAXcp5CQRfe0bqLSHbI5DtxSkmT JBfYTTZSFjcPehSQrVFz8nRCPnsekimYtFuq+y53ryTEQ1No7e6cKO+3Em4pQJ1Q9t4RZq9YHtpT0 K83ffK3Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPMJX-000000021gZ-1bhF; Tue, 19 May 2026 15:24:59 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPMJ9-000000021Lx-0nKv for linux-arm-kernel@lists.infradead.org; Tue, 19 May 2026 15:24:36 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id DB731403EA; Tue, 19 May 2026 15:24:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7C400C2BCB8; Tue, 19 May 2026 15:24:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779204274; bh=nd/SFqFEnjKhIh8jdIA2Y3hV+o5FYf2nfi5Ar2FriVk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SZU/9Nk1isibwbe/goA8rb23RTRh+TDHdGVHiJweVgoFLIlaLyRzOrwS1BowvouWW XenrcwvtqzcvxlAqhITZdQf9hYUeMs+gI2MdgR92uUqwQP2LBIU7SPyp6qGx6gbBOP qxVOY1l0Hhwe8JHeBzuxD0evaj0x7W+y+oLW5c93HbazWiqi0GAG4wuiOMzW6R2yeg XIaC4t8teRvWrIo4Xqyc3S70Nmw+ZV4CAGKYlxRrWTX3qixRRusoMKSBvtbM/0FjOK HSgKDcNXau/2MnWzfrD69KOkQ2gsuE0586E8+C/3t8eS87g67RVVwLnhTwzTobrB2m fWdtpV9EPdYoQ== From: Will Deacon To: maz@kernel.org, oupton@kernel.org, catalin.marinas@arm.com, corbet@lwn.net, pbonzini@redhat.com, Tian Zheng Cc: kernel-team@android.com, Will Deacon , 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, leo.bras@arm.com, Jonathan Cameron Subject: Re: [PATCH v3 0/5] Support the FEAT_HDBSS introduced in Armv9.5 Date: Tue, 19 May 2026 16:23:12 +0100 Message-ID: <177918656142.736362.17906576792384645789.b4-ty@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260225040421.2683931-1-zhengtian10@huawei.com> References: <20260225040421.2683931-1-zhengtian10@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260519_082435_262898_4B1B7C72 X-CRM114-Status: UNSURE ( 9.97 ) X-CRM114-Notice: Please train this message. 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 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 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev