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 74B7AC48BF8 for ; Mon, 19 Feb 2024 12:53:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rc39F-0001Ms-Mb; Mon, 19 Feb 2024 07:53:29 -0500 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 1rc39F-0001Mj-6k for qemu-devel@nongnu.org; Mon, 19 Feb 2024 07:53:29 -0500 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 1rc39D-0008Fw-Gw for qemu-devel@nongnu.org; Mon, 19 Feb 2024 07:53:28 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1708347206; 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=Rwp3K/tyco+S6GkYgXqIwUdNod+B1L1KCDzaUWv/qBs=; b=VBkxTBkCSWxtPD9xv808zBkVQgGPcW4XmuzY+Ev8o1Uab05eq+exlGzUmV1cZ0kxBQRE6z lc0XoDeKqTCgJXfSfxfP+oi6KzraEY0pSNnYHH75dy/yxm0lN/s0y9SoBXWbjniQeIFNBq 8Ofcbj7d1NKJgk1DBeaTeQVCgL/JQxQ= 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-649-qI0YPT1hMNmUgpg2-n1b2w-1; Mon, 19 Feb 2024 07:53:21 -0500 X-MC-Unique: qI0YPT1hMNmUgpg2-n1b2w-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (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 0B017185A780; Mon, 19 Feb 2024 12:53:21 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.192.55]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D6B0B8077; Mon, 19 Feb 2024 12:53:20 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id C84F221E66D0; Mon, 19 Feb 2024 13:53:19 +0100 (CET) From: Markus Armbruster To: Xiaoyao Li Cc: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S . Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , Cornelia Huck , Daniel P . =?utf-8?Q?Berrang=C3=A9?= , Eric Blake , Marcelo Tosatti , qemu-devel@nongnu.org, kvm@vger.kernel.org, Michael Roth , Sean Christopherson , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang Subject: Re: [PATCH v4 53/66] i386/tdx: Wire TDX_REPORT_FATAL_ERROR with GuestPanic facility In-Reply-To: <20240125032328.2522472-54-xiaoyao.li@intel.com> (Xiaoyao Li's message of "Wed, 24 Jan 2024 22:23:15 -0500") References: <20240125032328.2522472-1-xiaoyao.li@intel.com> <20240125032328.2522472-54-xiaoyao.li@intel.com> Date: Mon, 19 Feb 2024 13:53:19 +0100 Message-ID: <87v86kehts.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.072, 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_H2=-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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Xiaoyao Li writes: > Integrate TDX's TDX_REPORT_FATAL_ERROR into QEMU GuestPanic facility > > Originated-from: Isaku Yamahata > Signed-off-by: Xiaoyao Li > --- > Changes in v4: > - refine the documentation; (Markus) > > Changes in v3: > - Add docmentation of new type and struct; (Daniel) > - refine the error message handling; (Daniel) > --- > qapi/run-state.json | 28 ++++++++++++++++++++-- > system/runstate.c | 54 +++++++++++++++++++++++++++++++++++++++++++ > target/i386/kvm/tdx.c | 24 ++++++++++++++++++- > 3 files changed, 103 insertions(+), 3 deletions(-) > > diff --git a/qapi/run-state.json b/qapi/run-state.json > index 08bc99cb8561..5429116679e3 100644 > --- a/qapi/run-state.json > +++ b/qapi/run-state.json > @@ -485,10 +485,12 @@ > # > # @s390: s390 guest panic information type (Since: 2.12) > # > +# @tdx: tdx guest panic information type (Since: 8.2) > +# > # Since: 2.9 > ## > { 'enum': 'GuestPanicInformationType', > - 'data': [ 'hyper-v', 's390' ] } > + 'data': [ 'hyper-v', 's390', 'tdx' ] } > > ## > # @GuestPanicInformation: > @@ -503,7 +505,8 @@ > 'base': {'type': 'GuestPanicInformationType'}, > 'discriminator': 'type', > 'data': {'hyper-v': 'GuestPanicInformationHyperV', > - 's390': 'GuestPanicInformationS390'}} > + 's390': 'GuestPanicInformationS390', > + 'tdx' : 'GuestPanicInformationTdx'}} > > ## > # @GuestPanicInformationHyperV: > @@ -566,6 +569,27 @@ > 'psw-addr': 'uint64', > 'reason': 'S390CrashReason'}} > > +## > +# @GuestPanicInformationTdx: > +# > +# TDX Guest panic information specific to TDX GCHI > +# TDG.VP.VMCALL. > +# > +# @error-code: TD-specific error code Where could a user find information on these error codes? > +# > +# @gpa: guest-physical address of a page that contains additional > +# error data, in forms of zero-terminated string. "in the form of a zero-terminated string" > +# > +# @message: Human-readable error message provided by the guest. Not > +# to be trusted. How is this message related to the one pointed to by @gpa? > +# > +# Since: 9.0 > +## > +{'struct': 'GuestPanicInformationTdx', > + 'data': {'error-code': 'uint64', > + 'gpa': 'uint64', > + 'message': 'str'}} > + > ## > # @MEMORY_FAILURE: > # [...]