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.web11.7879.1646140375218699765
 for <devel@edk2.groups.io>;
 Tue, 01 Mar 2022 05:12:55 -0800
Authentication-Results: mx.groups.io;
 dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=BeycCiQK;
 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=1646140374;
	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=yP72prfhnEuEjNum/+Sswg8rBIajIiCigTUX/pN/QjE=;
	b=BeycCiQKK5qDbg8R9DagwQ40iar6roXLOOUbsZ1/p/oOb0+N90ICbdbEWi/Z2eCGusv5dU
	MFkzjhcdx4OW8gEkpbKygDQ4Hfd13kTwlKmZ9p3CagAln/hq4ItJrMYVS8tbnM51JKdzOm
	8gN9P+B+vuUFbIpxXz5L2vRj14Yh+zs=
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-65-qvK1ohlHORyKXSAd-W2kVQ-1; Tue, 01 Mar 2022 08:12:51 -0500
X-MC-Unique: qvK1ohlHORyKXSAd-W2kVQ-1
Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22])
	(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 3B2F0801AB2;
	Tue,  1 Mar 2022 13:12:49 +0000 (UTC)
Received: from sirius.home.kraxel.org (unknown [10.39.195.81])
	by smtp.corp.redhat.com (Postfix) with ESMTPS id 0027F105501A;
	Tue,  1 Mar 2022 13:12:48 +0000 (UTC)
Received: by sirius.home.kraxel.org (Postfix, from userid 1000)
	id 4E77D180039D; Tue,  1 Mar 2022 14:12:47 +0100 (CET)
Date: Tue, 1 Mar 2022 14:12:47 +0100
From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Min Xu <min.m.xu@intel.com>
Cc: devel@edk2.groups.io, Ard Biesheuvel <ardb+tianocore@kernel.org>,
	Jordan Justen <jordan.l.justen@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 V7 28/37] OvmfPkg: Update PlatformInitLib for Tdx guest to publish ram regions
Message-ID: <20220301131247.ftjluuscnycli2v2@sirius.home.kraxel.org>
References: <cover.1646031164.git.min.m.xu@intel.com>
 <cd129f4911e3eccb16f03cebada14008830d57be.1646031165.git.min.m.xu@intel.com>
MIME-Version: 1.0
In-Reply-To: <cd129f4911e3eccb16f03cebada14008830d57be.1646031165.git.min.m.xu@intel.com>
X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22
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, Feb 28, 2022 at 03:21:00PM +0800, Min Xu wrote:
> RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429
> 
> In Tdx guest, the system memory is passed in TdHob by host VMM. So
> the major task of PlatformTdxPublishRamRegions is to walk thru the
> TdHob list and transfer the ResourceDescriptorHob and MemoryAllocationHob
> to the hobs in DXE phase.
> 
> MemoryAllocationHob should also be created for Mailbox and Ovmf work area.
> 
> Another update is in PlatformAddressWidthInitialization. The physical
> address width that Tdx guest supports is either 48 or 52.
> 
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Brijesh Singh <brijesh.singh@amd.com>
> Cc: Erdem Aktas <erdemaktas@google.com>
> Cc: James Bottomley <jejb@linux.ibm.com>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Tom Lendacky <thomas.lendacky@amd.com>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Signed-off-by: Min Xu <min.m.xu@intel.com>

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