From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by mx.groups.io with SMTP id smtpd.web11.6951.1634201099725597286 for ; Thu, 14 Oct 2021 01:44:59 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=APi15nSQ; spf=pass (domain: redhat.com, ip: 216.205.24.124, mailfrom: kraxel@redhat.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1634201098; 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=tTf5apVJw1PAGWUoH6RS6RC1oLjG5zY87qAu3Ez7N2o=; b=APi15nSQkcckUp+I+9SV/BQvGl9mVyUFyLWDK/3Dvt05pAsrwqkNQ+FR7IDAgtqCcI8jW2 IJExJEeQXoSMp87b86IZGw53ts/vj4d6VMsne+s+2wSrcv9Q4KFMa4LpTIk8T6R8AE8Gv3 4ms/FM18z5FNJ5e1HIMHsQ0focDUb6c= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-545-hFJ5KzvePXCv3NrZASey-w-1; Thu, 14 Oct 2021 04:44:57 -0400 X-MC-Unique: hFJ5KzvePXCv3NrZASey-w-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A07AC10A8E06; Thu, 14 Oct 2021 08:44:55 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5575419724; Thu, 14 Oct 2021 08:44:55 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 7388D18007AC; Thu, 14 Oct 2021 10:44:53 +0200 (CEST) Date: Thu, 14 Oct 2021 10:44:53 +0200 From: "Gerd Hoffmann" To: Brijesh Singh Cc: devel@edk2.groups.io, James Bottomley , Min Xu , Jiewen Yao , Tom Lendacky , Jordan Justen , Ard Biesheuvel , Erdem Aktas , Michael Roth , Eric Dong , Ray Ni , Rahul Kumar Subject: Re: [PATCH v9 26/32] UefiCpuPkg/MpLib: add support to register GHCB GPA when SEV-SNP is enabled Message-ID: <20211014084453.kpyf4fwuej2c6ii4@sirius.home.kraxel.org> References: <20211013165713.727815-1-brijesh.singh@amd.com> <20211013165713.727815-27-brijesh.singh@amd.com> MIME-Version: 1.0 In-Reply-To: <20211013165713.727815-27-brijesh.singh@amd.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 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 Wed, Oct 13, 2021 at 11:57:07AM -0500, Brijesh Singh wrote: > BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275 > > An SEV-SNP guest requires that the physical address of the GHCB must > be registered with the hypervisor before using it. See the GHCB > specification section 2.3.2 for more details. Acked-by: Gerd Hoffmann