From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=113.46.200.220 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793962015; b=G17DkAcWN6gm7wGzmV52UnLIqrTHWt3LlKzY/c5iU75iQcv8DOanVt+xqxUP8617M/na zCtkvw1VSqjQ8/QovMRItqz+VHCQn1CCvmpsabkKIctZ+ksXWcyZyTsud350eMi2Q3iMg 8b+CtFv0y2mQBMi7PT+kMviFvLmD1W32UayCZzNGGmVe+m/djAMrEJ9Ad7ZZxQL9yrqyr +9zeCj7Zfy4L12WW1H8Nzqtz41vRbGaV/ixaSi3CsJoEmn1NImO/fk9TRosZtkZmJB+Rr rkEF+dIlLzPQqxf1E2FSXMDnxgiN85JocTgfeEtg5exvGI4DzVQ2XEhj+mAkdzRraGg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793962015; h=DMARC-Filter:dkim-signature:Received:Received:Received:Message-ID: Date:MIME-Version:User-Agent:Subject:To:CC:References:From: In-Reply-To:Content-Type:Content-Transfer-Encoding:X-Originating-IP: X-ClientProxiedBy; bh=chII47/1+ntpuddMK/yMlIxPkKF4NybCV4vRHvKCUco=; b=vDk1fOWj72jgh/p11JCxdAxOVbxHCzNk9S486rHHt1S0gNnZ+eoBSUabTZLacwKH3wdh UyuP8nYQkhYsbxPyqUlgKamdLVuG9UewBI3bMYsWKvdiJmDaSPlMWldEhmKzUmsDe2Dn7 9UJOdxkhMByJ8s4mpgI28kOo5oTZD3Z5Kkk0b46TqoPe7oYWx5sDF/Ocj2IQ+ZP45e9EQ V5dGYdO6/gdc2ol/7YcZyhKFrWAzTLHCS8i5JkdYHEfGOtf+5LMxQUqzAyOwFCMr0GFFF 9gwyHg+udGI5eKJdD4PRfUEgb9t5dCx5e1lLuLT39Y/zvDB2V9tK9KjVuQWpUOhuSow== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; dkim=pass header.d=huawei.com header.i=@huawei.com header.a=rsa-sha256 header.s=dkim header.b=BqDcONYA; arc=none smtp.remote-ip=113.46.200.220 Received: from canpmsgout05.his.huawei.com (canpmsgout05.his.huawei.com [113.46.200.220]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D34D3606D80C; Fri, 6 Nov 2026 10:46:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org D34D3606D80C Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=huawei.com header.i=@huawei.com header.a=rsa-sha256 header.s=dkim header.b=BqDcONYA dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=chII47/1+ntpuddMK/yMlIxPkKF4NybCV4vRHvKCUco=; b=BqDcONYAZxAgTfJDTYNrFs6jHSYv6zk/Vd9HVV9Gc4jpKk7bHF5wANGASsXqZVJsiqlHE7zfM jkl7XbQ6nTxZpuQ5UxUo8xnTgQeizL5KZOpQI5eiSVryAQzZMBifNqfgeIuUFacPt72iGoSAs/C 4bcCsxjE+JkUlaZv6zym+x4= Received: from mail.maildlp.com (unknown [172.19.162.140]) by canpmsgout05.his.huawei.com (SkyGuard) with ESMTPS id 4jLbTQ6VTTz12Lc0; Fri, 6 Nov 2026 18:46:50 +0800 (CST) Received: from kwepemr100010.china.huawei.com (unknown [7.202.195.125]) by mail.maildlp.com (Postfix) with ESMTPS id DC11D2011D; Fri, 6 Nov 2026 18:46:48 +0800 (CST) Received: from [10.67.120.103] (10.67.120.103) by kwepemr100010.china.huawei.com (7.202.195.125) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Fri, 6 Nov 2026 18:46:47 +0800 Message-ID: <191ab0e3-9913-4927-9f84-c861c8f3bcd5@huawei.com> Date: Fri, 6 Nov 2026 18:46:46 +0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 12/15] KVM: arm64: Derive the VM hardware dirty mode from dirty logging To: Leonardo Bras CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , References: <20260929103655.85107-1-zhengtian10@huawei.com> <20260929103655.85107-13-zhengtian10@huawei.com> From: Tian Zheng In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: kwepems500001.china.huawei.com (7.221.188.70) To kwepemr100010.china.huawei.com (7.202.195.125) On 11/2/2026 11:03 PM, Leonardo Bras wrote: > On Tue, Sep 29, 2026 at 06:36:52PM +0800, Tian Zheng wrote: >> Both HAFDBS and HDBSS flip VTCR_EL2.HD at memslot-update time. Two >> independent toggles allow an intermediate HDBSS-set/HD-clear state, >> an illegal combination, and need locking against concurrent updates. >> >> Replace both with kvm_arch_update_hw_dirty_mode(), a pure function >> of the static capabilities and the number of logging memslots: >> >> - logging && HDBSS-capable -> HD|HA|HDBSS >> - logging, no HDBSS -> off >> - !logging && HAFDBS-cap. -> HD|HA > > This last one is gone now, so I guess most of this patch has to be > reworked, right? > > Thanks! > Leo Hi Leo, Yes, the last one is no longer needed as we discussed earlier in [1], so I'll rework this patch. [1] https://lore.kernel.org/all/attMtUqxNsuPooix@LeoBrasDK/ Thanks, Tian