From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 300C9C54E58 for ; Wed, 20 Mar 2024 12:29:01 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rmv3S-0002UE-LI; Wed, 20 Mar 2024 08:28:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rmv3Q-0002TU-Am for qemu-devel@nongnu.org; Wed, 20 Mar 2024 08:28:24 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rmv3J-00041j-Ub for qemu-devel@nongnu.org; Wed, 20 Mar 2024 08:28:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1710937697; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZW5UtiL+EzjpbdstQ5Akgncb1Ct4JD3lPWufk7fPXok=; b=GB8V9JUU3BezKkHZ2+fpfvTPIxirGBnJUngBBf/wqriZojoNQ+/mFLs2j6jrHdf+F9VuXv nYsrGu+sb1nXiXte/lQ6Vbdw1Rfh+nKqmQyiruLHFDdScOY89rvtc2DsvuaP/SmI5CgN6D 5P1MhZQTTAxAFiL1+sejBxRtbJtwooU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-307-OvRDoVnXO6e6Hsa9_Z61ZQ-1; Wed, 20 Mar 2024 08:28:13 -0400 X-MC-Unique: OvRDoVnXO6e6Hsa9_Z61ZQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (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 55455853060; Wed, 20 Mar 2024 12:28:13 +0000 (UTC) Received: from redhat.com (unknown [10.42.28.205]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1AB9140C6DAD; Wed, 20 Mar 2024 12:28:12 +0000 (UTC) Date: Wed, 20 Mar 2024 12:27:50 +0000 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Michael Roth , qemu-devel@nongnu.org, kvm@vger.kernel.org, Tom Lendacky , Paolo Bonzini , Markus Armbruster , Pankaj Gupta , Xiaoyao Li , Isaku Yamahata Subject: Re: [PATCH v3 32/49] i386/sev: Don't return launch measurements for SEV-SNP guests Message-ID: References: <20240320083945.991426-1-michael.roth@amd.com> <20240320083945.991426-33-michael.roth@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/2.2.12 (2023-09-09) X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.417, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Wed, Mar 20, 2024 at 12:15:00PM +0000, Daniel P. Berrangé wrote: > On Wed, Mar 20, 2024 at 03:39:28AM -0500, Michael Roth wrote: > > For SEV-SNP guests, launch measurement is queried from within the guest > > during attestation, so don't attempt to return it as part of > > query-sev-launch-measure. > > > > Signed-off-by: Michael Roth > > --- > > target/i386/sev.c | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/target/i386/sev.c b/target/i386/sev.c > > index b03d70a3d1..0c8e4bdb4c 100644 > > --- a/target/i386/sev.c > > +++ b/target/i386/sev.c > > @@ -803,7 +803,9 @@ sev_launch_get_measure(Notifier *notifier, void *unused) > > > > static char *sev_get_launch_measurement(void) > > { > > - SevGuestState *sev_guest = SEV_GUEST(MACHINE(qdev_get_machine())->cgs); > > + ConfidentialGuestSupport *cgs = MACHINE(qdev_get_machine())->cgs; > > + SevGuestState *sev_guest = > > + (SevGuestState *)object_dynamic_cast(OBJECT(cgs), TYPE_SEV_GUEST); > > > > if (sev_guest && > > SEV_COMMON(sev_guest)->state >= SEV_STATE_LAUNCH_SECRET) { > > The QAPI docs for query-sev-launch-measurement should be updated > to reflect that this command is only valid to call for SEV/SEV-ES, > not SNP. Also, the same question about whether query-sev-attestation-report and sev-inject-launch-secret need updating to declare them SEV/SEV-ES only, or if they are expected work with SNP too ? With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|