From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id E1CA63CF67C; Tue, 21 Apr 2026 14:18:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776781122; cv=none; b=V/QjWfIemoUtkTAcZnJx1zyT3/eAApCFpzjszDAKLOgv5r/7S0HVV0BcrFLo9zc2xRR3MmesX85drr08ghYf9Y/MFph7eKP34kKEcHzRTX52j+Z/nyHSQSoPUfxoTLBRePmWm5nmvoiRcuzdAmLaPb4bDLr29nESQrb3Kpx7SsY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776781122; c=relaxed/simple; bh=vAu2TZe4KLTTnExsF79HZ16TqzLObTuSThMNMoqwYmo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type:Content-Disposition; b=UFVGTarzdiHyfATXjO4+MKCw4HsgrTMkSpvBM7c9q2KzVr4lMXb6qST1a/FTLT9G+qXTVZWfDEW267oRwtje5anM2RrD6dCsI/Tar9ISezLa7TI6B8FVICnLYd9HYEjN6GVXyiA1YmiTBRX5zGQJPczTmTwjGn4PpM0XPkc71Cc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=DU2TyQmQ; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="DU2TyQmQ" 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 C0D1825DC; Tue, 21 Apr 2026 07:18:34 -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 28ACA3F915; Tue, 21 Apr 2026 07:18:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1776781120; bh=vAu2TZe4KLTTnExsF79HZ16TqzLObTuSThMNMoqwYmo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DU2TyQmQAdeK7LaY99ERkB/P2rD92ghDuIBKbHU6l8oH8aVSyeuqUaXTzQZZME4pS 3Cma8C6BrCfnkUqZx1mWuRt1mElr+RuJm0OJoKWjz0NS+id2zVAQUoRqox3MEZXy2j +eYt99Ev0UEajRaFBOa6mkGWCp0dShOF6OHK89AU= From: Leonardo Bras To: Tian Zheng Cc: Leonardo Bras , maz@kernel.org, oupton@kernel.org, catalin.marinas@arm.com, corbet@lwn.net, pbonzini@redhat.com, will@kernel.org, yuzenghui@huawei.com, wangzhou1@hisilicon.com, liuyonglong@huawei.com, Jonathan.Cameron@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 Subject: Re: [PATCH v3 4/5] KVM: arm64: Enable HDBSS support and handle HDBSSF events Date: Tue, 21 Apr 2026 15:18:28 +0100 Message-ID: X-Mailer: git-send-email 2.53.0 In-Reply-To: References: <20260225040421.2683931-1-zhengtian10@huawei.com> <20260225040421.2683931-5-zhengtian10@huawei.com> <4e800c1e-25db-4aa2-b100-63434973de93@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: 8bit On Mon, Mar 30, 2026 at 12:31:28PM +0100, Leonardo Bras wrote: > On Sat, Mar 28, 2026 at 02:05:25PM +0800, Tian Zheng wrote: > > > > On 3/27/2026 11:00 PM, Leonardo Bras wrote: > > > On Fri, Mar 27, 2026 at 03:35:29PM +0800, Tian Zheng wrote: > > > > On 3/26/2026 2:05 AM, Leonardo Bras wrote: > > > > > Hello Tian, > > > > > > > > > > I am currently working on HACDBS enablement(which will be rebased on top of > > > > > this patchset) and due to the fact HACDBS and HDBSS are kind of > > > > > complementary I will sometimes come with some questions for issues I have > > > > > faced myself on that part. :) > > > > > > > > > > (see below) > > > > > > > > Of course! Happy to exchange ideas and learn together. > > > :) Hello Tian, On the above, HACDBS depends on HACDBSIRQ which can be announced by either device-tree or ACPI. Do you think it's ok for it to be ACPI only, for now? Thanks! Leo