From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail05.groups.io (mail05.groups.io [45.79.224.7]) by spool.mail.gandi.net (Postfix) with ESMTPS id 65390D802B4 for ; Wed, 2 Jul 2025 15:55:05 +0000 (UTC) DKIM-Signature: a=rsa-sha256; bh=TLs8GlBDdQ19QcVP2dGfVXOApPM3sDtX4A8qJujkV8c=; c=relaxed/simple; d=groups.io; h=DKIM-Filter:Message-ID:Date:MIME-Version:User-Agent:Subject:To:References:From:In-Reply-To:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Resent-Date:Resent-From:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Language:Content-Type:Content-Transfer-Encoding; s=groups1; t=1751471704; v=1; x=1751730904; b=Q8P2QoT0iUU1Dwu5gAOIvZXVGzIkgxEjyDQT8aWepulVnKT9CGeLnqe8WDzS8er62pA0jxw+ dbaql+WjqW5fma3OSy4bdDL7lvbqX2AHxsz8h0hO8zxn6BeJUYSJMfFIX5kkGCBj5S+66GZnoQM qDMg+IJ1QU90DaiIH87QN0v7wKjEx8zZympyezgNi8jWeQTb/J8Ozw2acrbt4SdIZvqtEszz9vw gwjcwK0rdz/Q+YyQBP/kfGjc0WoX1u8DSHm6OL5TA14rXqwE9e5I2HryI+zxxIsIcAL1869eijq nhuJCNdr1qqlA+MvESOo0aXfGzHxd9wgEisVsXxkfVuyA== X-Received: by 127.0.0.2 with SMTP id xgQCYY7687511xBpOVtXOZWD; Wed, 02 Jul 2025 08:55:04 -0700 X-Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mx.groups.io with SMTP id smtpd.web10.27488.1751471703231726566 for ; Wed, 02 Jul 2025 08:55:03 -0700 X-Received: from [10.137.194.171] (unknown [131.107.147.171]) by linux.microsoft.com (Postfix) with ESMTPSA id B76AD201657B; Wed, 2 Jul 2025 08:55:02 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com B76AD201657B Message-ID: <4aede355-0e9b-4f9f-99b7-b8e8e085b3dc@linux.microsoft.com> Date: Wed, 2 Jul 2025 08:55:02 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [edk2-devel] PcdNoACPIReclaimMemory Usage To: devel@edk2.groups.io, aaron.li@intel.com References: <2ad268b2-198a-4ebe-b924-a46495005bd0@linux.microsoft.com> From: "Oliver Smith-Denny via groups.io" In-Reply-To: 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 Resent-Date: Wed, 02 Jul 2025 08:55:03 -0700 Resent-From: osde@linux.microsoft.com Reply-To: devel@edk2.groups.io,osde@linux.microsoft.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: CgovEBnI1QTlZUPDGy2GA1yfx7686176AA= Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=groups1 header.b=Q8P2QoT0; dmarc=pass (policy=none) header.from=groups.io; spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 45.79.224.7 as permitted sender) smtp.mailfrom=bounce@groups.io Are you able to share any more details? Say what the feature is and why the tables must be in EfiAcpiMemoryNVS? Is this DRTM related? We are trying to understand OS implications as well as for other platforms. If the feature is not publicly released, I understand, but certainly would appreciate if there are any more details that are allowed to be shared publicly. Thanks, Oliver On 7/2/2025 1:51 AM, Aaron Li via groups.io wrote: > Hi Oliver, >=20 > There is a case in a specific intel feature that requires to preserve the= ACPI tables in memory > without being reclaimed by OS. That is why we need all ACPI tables to be = published in > EfiAcpiMemoryNVS. >=20 > Best, > Aaron >=20 > -----Original Message----- > From: Oliver Smith-Denny > Sent: Tuesday, July 1, 2025 11:44 PM > To: Li, Aaron > Cc: devel@edk2.groups.io > Subject: PcdNoACPIReclaimMemory Usage >=20 > Hi Aaron, >=20 > I am reviewing > https://github.com/tianocore/edk2/commit/932db9df0caa26daca4edf133fb2aed7= b4a9193e > and I am looking for more information on the usage > of this PCD because the code and the commit message > don't provide much detail. I found the associated mailing list > thread: https://edk2.groups.io/g/devel/topic/105191315#msg117191, > but that also doesn't contain any information on the usage, just > that a feature requires it. >=20 > Can you please provide some additional information on what feature > requires all ACPI tables to be published in EfiAcpiMemoryNVS? When > would you expect a platform to set this PCD? Is it to boot a > specific OS or for a specific Intel feature? >=20 > Thanks, > Oliver >=20 >=20 >=20 >=20 >=20 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#121449): https://edk2.groups.io/g/devel/message/121449 Mute This Topic: https://groups.io/mt/113931161/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-