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 lists1p.gnu.org (lists1p.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 E8DF5C43458 for ; Tue, 7 Jul 2026 15:03:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wh7KD-00028g-Ai; Tue, 07 Jul 2026 11:03:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wh7Jj-0001vc-H3 for qemu-devel@nongnu.org; Tue, 07 Jul 2026 11:02:50 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wh7Jb-00056X-7m for qemu-devel@nongnu.org; Tue, 07 Jul 2026 11:02:30 -0400 Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 667CIOsH3536712; Tue, 7 Jul 2026 15:02:22 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=JvUImd TbkNHPK40eCpB+dx0stRIhoeR37W4ZVXxCavI=; b=o8fw1q520rQrzCNRbKcdZB MKrg4Tkely1EEwVAMBkOnYhUP6x9+Zsrgh9IQAISpL/fq1pGvi4oi+BaeDn7nIhQ h8mI4ldA7hTV6VMhfrZ+H+Z0n9XbGlxgMVF0QFUiFQstaFtw+IyTE2LOuIOcL8Ih MZ+bxpiVsJo5n8hfzQber5nITdX0Sr8s3or+ojT8cyxkqsaMlC/Xz6sinjp83kEn y+CyVlb4s0XHFFlOiYoLjiZttr0p7B3KWKRNajGfHQgSN9hzt/V0uBzxOOB/bMYm gPaXuP85VEmVqe3Q+OXUNYNn/kEWWbiznWioLbeejio/uYjJzEGxwIfEjvfF4Czw == Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4f6sw4qtpe-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Jul 2026 15:02:22 +0000 (GMT) Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 667Enb7Z000622; Tue, 7 Jul 2026 15:02:21 GMT Received: from smtprelay07.dal12v.mail.ibm.com ([172.16.1.9]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 4f7eqg33g4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Jul 2026 15:02:21 +0000 (GMT) Received: from smtpav02.wdc07v.mail.ibm.com (smtpav02.wdc07v.mail.ibm.com [10.39.53.229]) by smtprelay07.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 667F2KT960948950 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 7 Jul 2026 15:02:21 GMT Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A3E745805E; Tue, 7 Jul 2026 15:02:20 +0000 (GMT) Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 18F9A5805C; Tue, 7 Jul 2026 15:02:20 +0000 (GMT) Received: from [9.47.158.153] (unknown [9.47.158.153]) by smtpav02.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 7 Jul 2026 15:02:19 +0000 (GMT) Message-ID: <00a43a10-67f2-45ce-b2fd-15e4bb32b101@linux.ibm.com> Date: Tue, 7 Jul 2026 11:02:19 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 3/3] hw/core/machine: disable tpm-tis-device PPI for machine type <= 11.0 To: Mohammadfaiz Bawa , Stefan Berger , =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, Peter Maydell Cc: Zhao Liu References: <20260619093140.832136-1-mbawa@redhat.com> <20260619093140.832136-4-mbawa@redhat.com> Content-Language: en-US From: Stefan Berger In-Reply-To: <20260619093140.832136-4-mbawa@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: LvArR7x0jBWSJQwEQ7Mhx-dxyFbAJnYM X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA3MDE0NSBTYWx0ZWRfX4Wmxmoa3mknD aVeVowFhpQHNFA1bcCgcGFrBX5lKb5LjYWYmup67GxlwFfx8e/ql7WQ6R8zB8co3cCa6af65Dmf 3hHvDVFL6zjM3SJaxqEmOuGoUEKtglfq/bd10euO1CDU8S6Yfp9LLiBAuqfwHlvHgFx2nz6U9f4 qxGlCLBhsIO2K8n+ZuwpM+6AclCp28QzmBA6BLLIsZpl0QFyKyAnoD5MunFXLGHbJe4KK4wixf0 7U4wdLwhMgQv3HHJLnbgUoSr+8NwGlHD4gM7V5FicmarkLumYN1MJJsz5DyE9uck/5l2sOISreL Gx168putcTAapjUfQdV8CkwSUC8qRYK8wkG2us3ePKjfvjN1o/TpmATOeYUjjf2H01RWonLReEw eiq4wn3rf4tXY6JXj/9i9NxeYbMT3hf41aKewwOofZW32nt0mgyuV8otFm7m/cUluDGhlvNgdTH zfeUY8Q0OP2VRNpCpcA== X-Proofpoint-ORIG-GUID: LvArR7x0jBWSJQwEQ7Mhx-dxyFbAJnYM X-Authority-Analysis: v=2.4 cv=FqQ1OWrq c=1 sm=1 tr=0 ts=6a4d14fe cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=20KFwNOVAAAA:8 a=VnNF1IyMAAAA:8 a=HiZxU16huqEOhowUG_4A:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA3MDE0NSBTYWx0ZWRfX5NN2HDiXCLK5 pWM1IHVkKs4qp/Gx1i1M2JalQZ9IT9btipMxXXFJQPRUYaXlwCcIQE8mfCAF1jNQSqo4MkHBV5g hhs+iewTxDYOqYpw2ZKmNt6b9K/kruQ= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-07_03,2026-07-06_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 clxscore=1011 malwarescore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 spamscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607070145 Received-SPF: pass client-ip=148.163.156.1; envelope-from=stefanb@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: qemu development 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 On 6/19/26 5:31 AM, Mohammadfaiz Bawa wrote: > Set ppi=off in hw_compat_11_0[] so that older machine types do not > register the "tpm-ppi" RAMBlock, restoring backward migration. > > Signed-off-by: Mohammadfaiz Bawa > --- > hw/core/machine.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/hw/core/machine.c b/hw/core/machine.c > index 9a10e45aab..92cf5e1ca1 100644 > --- a/hw/core/machine.c > +++ b/hw/core/machine.c > @@ -44,6 +44,7 @@ GlobalProperty hw_compat_11_0[] = { > { "chardev-vc", "encoding", "cp437" }, > { "tpm-crb", "cap-chunk", "off" }, > { "tpm-crb", "x-allow-chunk-migration", "off" }, > + { "tpm-tis-device", "ppi", "off" }, > { TYPE_ARM_SMMUV3, "ats", "off" }, > { TYPE_ARM_SMMUV3, "ril", "on" }, > { TYPE_ARM_SMMUV3, "ssidsize", "0" }, Reviewed-by: Stefan Berger