From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 885B3405ACD for ; Tue, 24 Mar 2026 15:44:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774367063; cv=none; b=btNwfI0Vda2/ukRCanUo7uryu8n6uH458yFgqlYz6SBl14v1HnQHA4eeUscLuiCX9eZce6/S8VvzpEKQj4g4y5c/jyE+P2f+dMLe3ROATLiLp3DE2DLYdbXLUY0j5CSbnpD64NHcYq//KK731FulObNf97R7JM6OLPOlAT/FC2A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774367063; c=relaxed/simple; bh=COzvXf95VgYEGFT3vkIvilIgEuwTrj6d18C4DXXyebQ=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=OJ/Q17Y41ttvuRMF8kNrPFZbtS4hNXM+EGQ1tQ2eHrdnmQkdcHexl7ZPMGp3fHIgzWRDhmuIcxzLOgnx78lZe+YTyvSR/2CdDwkg8k52orfGntyO18NkIXnihc+JrN1fIMsxrNCu7kQ9xmDSqtLyju7Yl8nqqPIrM8oh7vIxwPQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=tg3s6Yn4; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="tg3s6Yn4" Received: from pps.filterd (m0360083.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62OCjGJN3481709; Tue, 24 Mar 2026 15:44:12 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=pp1; bh=JiND6mGiPvbE2LYKOKXLYrjLtSLL QoO6Xdn0gIx8CCY=; b=tg3s6Yn4Oa3yJ68E5f9V7KlD4kTaE/VBf2LP95IwNfDe 3guni/kTKQPcEgrSk8qkPRxSbkAVpcW1dKhsIrs07izaVoP4YmJgTKytVIVafYpv jU8yQX04Z2TFV7d/zpVnO/XcPJiDSelOwdSRvBE4lOvZjcoiiVkdR4SPmrMibKX4 HoOmm0BEJIfGrRgJFJm2Xd5k0Nr6hV2U7z1qu3wejozpdO01nyDEUvEU4SsdDPzP 8n8sgPW83TAUUXfzC7aCPegnMuWtIAFOBf9mUN703njv5OcjPhhFm9bFXBGYVLs5 5H5qrCXLkbN6tb30y+aTxacIszCM0Rus//kqhRhmSA== Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4d1kxqcb18-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 24 Mar 2026 15:44:12 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 62OCXFOW026685; Tue, 24 Mar 2026 15:44:11 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4d275ktg27-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 24 Mar 2026 15:44:10 +0000 Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 62OFi6iT46793018 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 24 Mar 2026 15:44:06 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C4C8020040; Tue, 24 Mar 2026 15:44:06 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E35E920043; Tue, 24 Mar 2026 15:44:05 +0000 (GMT) Received: from [192.168.88.251] (unknown [9.111.21.79]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 24 Mar 2026 15:44:05 +0000 (GMT) From: Christoph Schlameuss Subject: [PATCH v2 0/2] s390x/kvm: Add ASTFLE facility 2 for nested virtualization Date: Tue, 24 Mar 2026 16:43:43 +0100 Message-Id: <20260324-astfleie2-v2-0-13008712da00@linux.ibm.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/03Myw6CMBCF4Vchs7akM14CrnwPwwLLVCaBlrRIM KTvbiUuXP4nJ98GkYNwhGuxQeBFoniXgw4FmL51T1bS5QbSdNGka9XG2Q4sTKo6M5vadjXhEfJ /Cmxl3a17k7uXOPvw3ukFv+tPQfxTFlSojG0R7YnIdtVtEPdaS3mMpfEjNCmlDzNihB+mAAAA X-Change-ID: 20260209-astfleie2-85eec9fd9213 To: qemu-s390x@nongnu.org Cc: qemu-devel@nongnu.org, Halil Pasic , Christian Borntraeger , Eric Farman , Matthew Rosato , Richard Henderson , Ilya Leoshkevich , Thomas Huth , "Michael S. Tsirkin" , Cornelia Huck , Paolo Bonzini , Hendrik Brueckner , kvm@vger.kernel.org, Christoph Schlameuss , Nina Schoetterl-Glausch X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1825; i=schlameuss@linux.ibm.com; h=from:subject:message-id; bh=COzvXf95VgYEGFT3vkIvilIgEuwTrj6d18C4DXXyebQ=; b=owGbwMvMwCUmoqVx+bqN+mXG02pJDJmHNrre+3LAj5krjetWQu1N0dMFwu0S/QcPMZU9/HbkS uOfRT+ud5SyMIhxMciKKbJUi1vnVfW1Lp1z0PIazBxWJpAhDFycAjCR8GyGf1YhkQU9OaxdTA8X fNbZdVSjL04i4KC2xpZUeeXCMoPrOgz/owONZs6Z0rV107Ml6+qjldt9oo+KfzhrkMl6e8LT5R2 JXAA= X-Developer-Key: i=schlameuss@linux.ibm.com; a=openpgp; fpr=0E34A68642574B2253AF4D31EEED6AB388551EC3 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: DoZzYelRpbj0VMS9CnGpYd2PlKxbtea- X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI0MDExOSBTYWx0ZWRfX7eOt/3jKOe2N Ie3h0tUC2cwuRS0jkYcEN/Hw3qa0jQGCvNXzUM5SXTkSOFpwClemCRqjuIaQHXlNo23AeljuC6J 1M/V7Are8pVRl2Bi3YeLttEo+mAJpnIbk+0S9iz4dgmTx4basFzAEFTRDTJpFHT4qaAxJeFKoRC utfnS7pRcEX7PVjrRFXBCKMRUMTl/ByK69Z5LQ3vrN7viVa5IizmRuG8bRjMXOvNpJNxYRFCPKn PMzfqAgqOU+y1VQAnOC9EuNBpAZKVz+RCJoia3sWCgy/g0G1H0tPcW8K/iCPmRcQ58u+3TV+GaC puE1BnUSSEEHaqxbhyMobehvnc/mr8CgJeKnXk9CwKegXCLSc9RwT+uD5eKUfUDPRH4gBdJkP/z akZaRPCyG7QvHbVcaaAi5PYSmij9guUyLJbCIqGYRI+X3LGwAmWJql3/1g0G5ehdYBohzv4r7ZI 5qapC53+SBEWCs1uPXQ== X-Authority-Analysis: v=2.4 cv=bLEb4f+Z c=1 sm=1 tr=0 ts=69c2b14c cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=69wJf7TsAAAA:8 a=VnNF1IyMAAAA:8 a=KKAkSRfTAAAA:8 a=20KFwNOVAAAA:8 a=VwQbUJbxAAAA:8 a=fVmZTmo3ZkCWnWwVhVYA:9 a=QEXdDO2ut3YA:10 a=Fg1AiH1G6rFz08G2ETeA:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-GUID: DoZzYelRpbj0VMS9CnGpYd2PlKxbtea- X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-24_03,2026-03-23_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 clxscore=1015 phishscore=0 impostorscore=0 malwarescore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603240119 Update the kernel headers to get access to KVM_S390_VM_CPU_FEAT_ASTFLEIE2 and allow passing the feature through to guest on IBM z16 onwards. Cc: qemu-devel@nongnu.org Cc: Halil Pasic Cc: Christian Borntraeger Cc: Eric Farman Cc: Matthew Rosato Cc: Richard Henderson Cc: Ilya Leoshkevich Cc: Thomas Huth Cc: Michael S. Tsirkin Cc: Cornelia Huck Cc: Paolo Bonzini Cc: Hendrik Brueckner To: qemu-s390x@nongnu.org Cc: kvm@vger.kernel.org Signed-off-by: Christoph Schlameuss --- Changes in v2: - Isolate the linux-header update into its own commit (thanks Thomas) - Correct naming of the feature (thanks Hendrik) - Add S390_FEAT_SIE_ASTFLEIE2 to full_GEN16_GA1 only as it depends on SIEF2 (thanks Christian) --- Christoph Schlameuss (2): linux-headers: Update to Linux v7.x with KVM_S390_VM_CPU_FEAT_ASTFLEIE2 s390x/kvm: Add ASTFLE facility 2 for nested virtualization hw/s390x/sclp.c | 2 ++ include/hw/s390x/sclp.h | 4 +++- linux-headers/asm-s390/kvm.h | 1 + target/s390x/cpu_features.c | 3 +++ target/s390x/cpu_features.h | 1 + target/s390x/cpu_features_def.h.inc | 3 +++ target/s390x/cpu_models.c | 2 ++ target/s390x/gen-features.c | 1 + target/s390x/kvm/kvm.c | 1 + 9 files changed, 17 insertions(+), 1 deletion(-) --- base-commit: fa4b2e31e649ba6fdb3eb2dd43952aad4a3bd675 change-id: 20260209-astfleie2-85eec9fd9213 Best regards, -- Christoph Schlameuss