From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by spool.mail.gandi.net (Postfix) with ESMTPS id B4B78AC0BB1 for ; Tue, 16 Jan 2024 08:47:37 +0000 (UTC) DKIM-Signature: a=rsa-sha256; bh=Awz9q4a4HnHczUw/BaCb1f4MjmusuSu6+46Z8dYUjr0=; c=relaxed/simple; d=groups.io; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:In-Reply-To:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Type:Content-Disposition; s=20140610; t=1705394856; v=1; b=OQ9nBjCWbJiVqmxI9NGx3/YeGY5G3IoHDpzYza8rb9lcsbNZqXZSkaCyi7MyYq4fHShKCwV7 eWuqbR8+48Zi2g2HdVlmxNB/1/TZ8jRlLe2hpYK77HkIh2y6ovO/UWeA/KkU2DqRJQ4Edy/E0aD mKXtXyA/+5vQaq/9aU9cgBwo= X-Received: by 127.0.0.2 with SMTP id vYeBYY7687511xou6xySlL5t; Tue, 16 Jan 2024 00:47:36 -0800 X-Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mx.groups.io with SMTP id smtpd.web11.8732.1705394855786680855 for ; Tue, 16 Jan 2024 00:47:35 -0800 X-Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-563-sKTPtG-SNnKbT-HOK6sLDg-1; Tue, 16 Jan 2024 03:47:31 -0500 X-MC-Unique: sKTPtG-SNnKbT-HOK6sLDg-1 X-Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 77B711C04327; Tue, 16 Jan 2024 08:47:30 +0000 (UTC) X-Received: from sirius.home.kraxel.org (unknown [10.39.193.155]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 537422166B31; Tue, 16 Jan 2024 08:47:30 +0000 (UTC) X-Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 52B6A1800987; Tue, 16 Jan 2024 09:47:29 +0100 (CET) Date: Tue, 16 Jan 2024 09:47:29 +0100 From: "Gerd Hoffmann" To: Laszlo Ersek Cc: Pedro Falcato , devel@edk2.groups.io, ray.ni@intel.com, Michael D Kinney , Nate DeSimone , Rahul Kumar Subject: Re: [edk2-devel] [PATCH 1/6] UefiCpuPkg/LocalApicTimerDxe: Duplicate OvmfPkg/LocalApicTimerDxe driver Message-ID: References: <20240115080325.147-1-ray.ni@intel.com> <20240115080325.147-2-ray.ni@intel.com> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Precedence: Bulk List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,kraxel@redhat.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: fAu00NilASOx2FvmjMQp2cUUx7686176AA= Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20140610 header.b=OQ9nBjCW; dmarc=fail reason="SPF not aligned (relaxed), DKIM not aligned (relaxed)" header.from=redhat.com (policy=none); spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io Hi, > Right, I have the same question -- although, admittedly, I've not been > CC'd on the cover letter (0/6), and the reason could be captured there. It wasn't. > On a second thought, I'm (retroactively?) surprised that > LocalApicTimerDxe was (apparently?) first introduced under OvmfPkg -- > i.e., for VMs? That's not impossible, but feels a bit strange. I think the reason is that the next timer interrupt arriving while the handler is running still is *much* more likely in virtual machines because the vCPU does not get 100% of the of the physical CPU time slice. So on OVMF we will continue to need NestedInterruptTplLib. I like the idea to have a Null version of the library, so OVMF does not need its own version of the driver just because of NestedInterruptTplLib. take care, Gerd -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#113880): https://edk2.groups.io/g/devel/message/113880 Mute This Topic: https://groups.io/mt/103734961/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=-=-=-=-=-=-=-=-=-=-=-