From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (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 7FEC848662D; Thu, 27 Aug 2026 15:53:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787845987; cv=none; b=aTyTW8SmJ1usZJZbq4kuGtkPSgprtu9WOf0NV+sJq1LbuQmM8JWACyWnmwS7ddy+1VMpFT3lzDmplUu377kA9yAl9SVuUx6DK6kXcqXdLlHxjXqO98O17zebvLBx2DhxXMpwunnSr9x9u6/10BBioU+gytRSMEeYniTM1PB7NqE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787845987; c=relaxed/simple; bh=x9xdSjbyG421knKQsJE0As0Fzfy3RA3/kmy4Qmy3OmI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=VHkDKpk+/VxgTvk1yaWDAzrgqWw9ev+EA6KIMQPGylyzTkuUpVMUxlnubcC8bhn2I3pOTBYi4kZtLxzHLRSg9CTRnaWdNrwezKSk89gUQxv6ob/qyX5w/SZIQ94a3zn1ymy/LHrtyTvAlUcG4p9zNbO+SVNFm3Yldme9Rj1tAho= 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=p6TzNf+/; arc=none smtp.client-ip=148.163.158.5 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="p6TzNf+/" Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67RF5Ns53245515; Thu, 27 Aug 2026 15:53:02 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=Q7CDrL /fnNEkoDfZR9EjqdANiAN9ufFElc3qpXLTj2w=; b=p6TzNf+/7d5YO7fPHAXDRG GaOuYAoO7FsKDCeyL/38uJgSzJ+FEjFz2jBE9CSjaTGrAQntTKzBMckkz9hDCK7G wrjTcrSFK2obJsHd+yt0E+6OMSqU4EWXKQnlEqThozJQsnkDGtQICzfL8vdbzGD7 pbjcpEt3DU/5EYYrjQoNzdNDAauicstsps+ciGVOGflFCcm03s6pSGUqhZMAjkX7 E7eBLDIVKmMzJw7/gWtz6K6ucmg1wBO9AakEYnCMXioT38y5ZiTIH9Ggns7c8g9t GpqrAIm14fTz7C28XXpQHtYFIDrytSRemPNqwSdReRE4MBlq/IGuf/OvVw7EFm6w == 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 4g716j6e18-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 27 Aug 2026 15:53:02 +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 67RFfiFV006041; Thu, 27 Aug 2026 15:53:01 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 4g7ragrqt3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 27 Aug 2026 15:53:01 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 67RFqusN29885042 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 27 Aug 2026 15:52:56 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2C6652004F; Thu, 27 Aug 2026 15:52:56 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6ECF72004E; Thu, 27 Aug 2026 15:52:55 +0000 (GMT) Received: from [192.168.88.251] (unknown [9.111.61.153]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 27 Aug 2026 15:52:55 +0000 (GMT) From: Christoph Schlameuss Date: Thu, 27 Aug 2026 17:52:43 +0200 Subject: [PATCH v6 03/21] KVM: s390: vsie: Add vsie_interp_extf detection 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 Message-Id: <20260827-vsie-sigpi-v6-3-8020bb53be52@linux.ibm.com> References: <20260827-vsie-sigpi-v6-0-8020bb53be52@linux.ibm.com> In-Reply-To: <20260827-vsie-sigpi-v6-0-8020bb53be52@linux.ibm.com> To: kvm@vger.kernel.org, linux-s390@vger.kernel.org Cc: Alexander Gordeev , Christian Borntraeger , Claudio Imbrenda , David Hildenbrand , Eric Farman , Heiko Carstens , Janosch Frank , Nico Boehr , Sven Schnelle , Vasily Gorbik , Paolo Bonzini , Shuah Khan , Sean Christopherson , Christoph Schlameuss X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2460; i=schlameuss@linux.ibm.com; h=from:subject:message-id; bh=x9xdSjbyG421knKQsJE0As0Fzfy3RA3/kmy4Qmy3OmI=; b=owGbwMvMwCUmoqVx+bqN+mXG02pJDFkTYoMSFsoEX2p+x/GV9c3Tsvh1NhcNVpl/eHflM2vp6 nmrNtVqdJSyMIhxMciKKbJUi1vnVfW1Lp1z0PIazBxWJpAhDFycAjCRVwIMf7hmq6YttGeJZ9Er yW8Ucr/ns3nzFrNfZ8xP2SQbJU5tKGL4p6x17LBT7vTXwXqJmpmunk0TZTZen79E8HP1B8tt64+ v5QEA X-Developer-Key: i=schlameuss@linux.ibm.com; a=openpgp; fpr=0E34A68642574B2253AF4D31EEED6AB388551EC3 X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Info: AW1haW4tMjYwODI3MDEzMSBTYWx0ZWRfX3axbEckpG3gf TqZFrjOcHeKQALBl1DKbkA350tx+O1nDurLUuT8JIv8ugpGvUOMJx3lshMwtQZQNoORiaiUT04v v/EHBlQZDPNRPOGDuexPfZVpvjmXAvw= X-Proofpoint-GUID: 1Po5fTe_Li9OTufw1x5dcLMtVVijhhy0 X-Proofpoint-ORIG-GUID: sR7DMG80lOx1mlmdMHOIse6ftR9tYtML X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI3MDEzMSBTYWx0ZWRfX93DM8qckVsO8 2z0v6i7JZ3QJcy6HFieROvBTNuN6LT991pxegrqG+jfq8GfMrPiTQH8jHw7g4mYjda5qFzkNTP1 Aeq/cTq0pX5g2zCC3iynXJDe3GiJMftmNkvn3YMLAyyN22DbbiioJTroxW2Fd4m1mszCzttlhlN W2RtFWiLoR65LH/2EaDrio/+PI9tbXqXHgRt87iaT3cC2kFaE93289zKtRzLV4UWlkW8EfA/2I5 UVMxNZHbfVcdZUoH2W3KPdVRPp4g/gTs33TAs2o/LnA7GEKbGaVJ88vIiuKYnsZeG5SAPWmVjqY 9IEb34r+4sS7kxi1dYTrZKgNQmy2/q6sTXGxKip6+vI5jmNkMolPS7I2mcgagJ77GyE/jvJzxT5 RkQFd4ENg89Nl61gePu7I2rubGe6ye8oh5W+azkbuM2SKimf/rItTB9+MFRS/hgwgDyAz6fiPSe wjbQaHqOr79UDY3+0Zw== X-Authority-Analysis: v=2.4 cv=H7brBeYi c=1 sm=1 tr=0 ts=6a905d5e cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=aPtVb-VRJjWQdk5PnbsA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-27_06,2026-08-27_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 impostorscore=0 spamscore=0 bulkscore=0 adultscore=0 priorityscore=1501 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608270131 Add sensing of the VSIE Interpretation Extension Facility as vsie_interp_extf from SCLP. This facility is introduced with IBM Z gen17. Along with the new facility add a KVM struct member use_ssca that we enable when the vsie_interp_extf is available. Signed-off-by: Christoph Schlameuss --- arch/s390/include/asm/kvm_host_s390.h | 1 + arch/s390/include/asm/sclp.h | 1 + arch/s390/kvm/s390/s390.c | 1 + drivers/s390/char/sclp_early.c | 1 + 4 files changed, 4 insertions(+) diff --git a/arch/s390/include/asm/kvm_host_s390.h b/arch/s390/include/asm/kvm_host_s390.h index cd692f8fb764..6fdac144ca3a 100644 --- a/arch/s390/include/asm/kvm_host_s390.h +++ b/arch/s390/include/asm/kvm_host_s390.h @@ -623,6 +623,7 @@ struct kvm_arch { int use_pfmfi; int use_skf; int use_zpci_interp; + int use_ssca; int user_cpu_state_ctrl; int user_sigp; int user_stsi; diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 44066550b9b1..9e960c09ce0b 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -105,6 +105,7 @@ struct sclp_info { unsigned char has_dirq : 1; unsigned char has_iplcc : 1; unsigned char has_zpci_lsi : 1; + unsigned char has_vsie_interp_extf : 1; unsigned char has_aisii : 1; unsigned char has_aeni : 1; unsigned char has_aisi : 1; diff --git a/arch/s390/kvm/s390/s390.c b/arch/s390/kvm/s390/s390.c index b0839e887221..ae0177d74b11 100644 --- a/arch/s390/kvm/s390/s390.c +++ b/arch/s390/kvm/s390/s390.c @@ -3359,6 +3359,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) kvm->arch.use_pfmfi = sclp.has_pfmfi; kvm->arch.use_skf = sclp.has_skey; + kvm->arch.use_ssca = sclp.has_vsie_interp_extf; spin_lock_init(&kvm->arch.start_stop_lock); kvm_s390_vsie_init(kvm); if (use_gisa) diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c index 22dd797e6229..40e6e346ee08 100644 --- a/drivers/s390/char/sclp_early.c +++ b/drivers/s390/char/sclp_early.c @@ -56,6 +56,7 @@ static void __init sclp_early_facilities_detect(void) sclp.has_diag318 = !!(sccb->byte_134 & 0x80); sclp.has_diag320 = !!(sccb->byte_134 & 0x04); sclp.has_iplcc = !!(sccb->byte_134 & 0x02); + sclp.has_vsie_interp_extf = !!(sccb->byte_134 & 0x01); } if (sccb->cpuoff > 137) { sclp.has_sipl = !!(sccb->cbl & 0x4000); -- 2.55.0