From mboxrd@z Thu Jan  1 00:00:00 1970
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.web08.37952.1639556573812987078
 for <devel@edk2.groups.io>;
 Wed, 15 Dec 2021 00:22:54 -0800
Authentication-Results: mx.groups.io;
 dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=XFNSGn0u;
 spf=pass (domain: redhat.com, ip: 170.10.129.124, mailfrom: kraxel@redhat.com)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;
	s=mimecast20190719; t=1639556572;
	h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
	 to:to:cc:cc:mime-version:mime-version:content-type:content-type:
	 in-reply-to:in-reply-to:references:references;
	bh=BlOR9dDIaquk0QtlZjXYn9gSzWKVpkiR1c852X3S8Xk=;
	b=XFNSGn0uijDPYlobFUDMG/X08xXIHr4gNsulCf1FUsXiUiCRswqpuMhbqVMmvwKNLhEpH5
	CuF2y2uZzPpiSFR/XarqMGTKiq/ikzb4gk9lTkwq7H3Bddi2pobmbSyq0FGws+jjvFWrQx
	aSIXTlRQTBnUuppQulrAviGwhDbc6jU=
Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com
 [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS
 (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 us-mta-517-Z1DRHAO7PYuU-XkO0O-0aA-1; Wed, 15 Dec 2021 03:22:49 -0500
X-MC-Unique: Z1DRHAO7PYuU-XkO0O-0aA-1
Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14])
	(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CA4223939A;
	Wed, 15 Dec 2021 08:22:47 +0000 (UTC)
Received: from sirius.home.kraxel.org (unknown [10.39.192.14])
	by smtp.corp.redhat.com (Postfix) with ESMTPS id 7629F7A3FB;
	Wed, 15 Dec 2021 08:22:47 +0000 (UTC)
Received: by sirius.home.kraxel.org (Postfix, from userid 1000)
	id 9AE8A180039F; Wed, 15 Dec 2021 09:22:45 +0100 (CET)
Date: Wed, 15 Dec 2021 09:22:45 +0100
From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Min Xu <min.m.xu@intel.com>
Cc: devel@edk2.groups.io, Jian J Wang <jian.j.wang@intel.com>,
	Hao A Wu <hao.a.wu@intel.com>,
	Brijesh Singh <brijesh.singh@amd.com>,
	Erdem Aktas <erdemaktas@google.com>,
	James Bottomley <jejb@linux.ibm.com>,
	Jiewen Yao <jiewen.yao@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>
Subject: Re: [PATCH V4 20/31] MdeModulePkg: Add PcdTdxSharedBitMask
Message-ID: <20211215082245.ptjlllct23pc5636@sirius.home.kraxel.org>
References: <cover.1639399598.git.min.m.xu@intel.com>
 <3cd00d5f5a4b66645f49bba35924711d92fa45eb.1639399598.git.min.m.xu@intel.com>
MIME-Version: 1.0
In-Reply-To: <3cd00d5f5a4b66645f49bba35924711d92fa45eb.1639399598.git.min.m.xu@intel.com>
X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14
Authentication-Results: relay.mimecast.com;
	auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com
X-Mimecast-Spam-Score: 0
X-Mimecast-Originator: redhat.com
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

On Mon, Dec 13, 2021 at 08:56:51PM +0800, Min Xu wrote:
> RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429
> 
> Guest Physical Address (GPA) space in Td guest is divided into private
> and shared sub-spaces, determined by the SHARED bit of GPA. This PCD
> holds the shared bit mask. Its default value is 0 and it will be set
> in PlatformPei driver if it is of Td guest.

Acked-by: Gerd Hoffmann <kraxel@redhat.com>