From nobody Tue Dec 2 01:03:58 2025 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 3A78B2FF66D; Mon, 24 Nov 2025 11:56:08 +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=1763985370; cv=none; b=YyFM1kHyoeVicbTObFoFqucs4v6PuoRAZ1YqLXQ67MD3gwxMS2WqS27lmhn3achpRafX/c7noWZTWk+5VaYdwf8UfidUcMchPumCNJwVL/aLU4HJ1PW/Wxb0SnpJVPs8Ut9uJRGmUwg8DVERmI5kaf63dU/JK9PojYdWaFtnMnA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763985370; c=relaxed/simple; bh=846wY4Q8kTWTl8iKvy1sofJTTFCBr+FU6VG6wOY7w/A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VsjcOkdyj3426JdsPlKW3y+YRO9/mbPMjnc3Y6BwdAXibKAGXstbVAd26fiOIgQ151saRithq/3qnNGzDs/Mww+qET5TC3MOE7ImcQbksLnT8wZwQvOAPBANwjbk89tebKE8WikZVWzL2WiXx6N0fyqXoLJwCrQZP+zqh+wbUk0= 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=JlG7Z/Fb; 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="JlG7Z/Fb" Received: from pps.filterd (m0360083.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 5ANNh4rl014484; Mon, 24 Nov 2025 11:56:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=xxJY71CB/uj5Sfn/v ACUN6MRJImbmEMWRyLBDS5bT1s=; b=JlG7Z/FbZPNOQoDueRLmkz9g8KOaccyhv vPti1vdtLuEiJHkx79Se/ccI/uSYzM3orojFXc7c+cZHwByvzxCS+59d+i2pgwgy /be9KvOHrDBL1sZtV/vYytfh1tDz+xNB43MkLgrP9N9uOEDsrX9k0wh023pkWacP B78AvlwF1Ivfg0MmhLHCIlnXFFJDvnuc2DoMY6DIyGt8yPH8Am3BNvJnDcO2NCeK BFkt0Rj+FWvwUgaaYFauuC2dnM+oR/wdRoR6F5NIcMvY7hTAjlj4Q1jRUKTM7BqW dJ9ifDMRgi6wX1e4q5Wt8RNFIU4QQq77IL1q2sWqfnhBNwnbFBziA== 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 4ak4phqxnm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 24 Nov 2025 11:56:06 +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 5AOB6bI4016409; Mon, 24 Nov 2025 11:56:05 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4aks0jwn0s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 24 Nov 2025 11:56:05 +0000 Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 5AOBu1U829753848 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 24 Nov 2025 11:56:01 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 155B420043; Mon, 24 Nov 2025 11:56:01 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8085220040; Mon, 24 Nov 2025 11:55:59 +0000 (GMT) Received: from p-imbrenda.ibmuc.com (unknown [9.111.31.86]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 24 Nov 2025 11:55:59 +0000 (GMT) From: Claudio Imbrenda To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, borntraeger@de.ibm.com, frankja@linux.ibm.com, nsg@linux.ibm.com, nrb@linux.ibm.com, seiden@linux.ibm.com, gra@linux.ibm.com, schlameuss@linux.ibm.com, hca@linux.ibm.com, svens@linux.ibm.com, agordeev@linux.ibm.com, gor@linux.ibm.com, david@redhat.com, gerald.schaefer@linux.ibm.com Subject: [PATCH v5 02/23] KVM: s390: add P bit in table entry bitfields, move union vaddress Date: Mon, 24 Nov 2025 12:55:33 +0100 Message-ID: <20251124115554.27049-3-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251124115554.27049-1-imbrenda@linux.ibm.com> References: <20251124115554.27049-1-imbrenda@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTIyMDAxNiBTYWx0ZWRfX824N8wnKrHTy g+7Plz7CJS9Ad/OaIOqxOrCkrMnY/g8UH+MWmh35TKat1EeeEV+469ZC5wEMvMkEfPJzq/hWeVr nGgOl/hbVMR6a229dMJPNsXHxjbJ6vzK1NeckgoBEV69YdD0HbqUk3qJjBGshwOAWPU6lNtndm4 ACrahnzwDqrWnpilIULYCIW2jqIY60aSO2l6eMXo6KDxm7abAN434uYx6EZprei9SG57RuR++Zw TG9xZbqw4+PuqHts17K4UeYkBRQ66S5OKIFyTtJLX8qhUw08EGmiosRZuwO+ywnQUQR3CL753D7 08vq75Vr1hrisAkFcGRA8SmKoFtrlemeAokGiE9IrfPvErrbEnN795IhXU4PqH7e0epIxIngtCQ 8Z0AzfTBqediG09xJzI4jqym5KDjcg== X-Proofpoint-ORIG-GUID: E9r2Pyguf3EtmNYF-u6TJ9HNoEMXkUCy X-Authority-Analysis: v=2.4 cv=CcYFJbrl c=1 sm=1 tr=0 ts=692447d6 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=6UeiqGixMTsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=ejxT3_R5mcMXAYFV490A:9 X-Proofpoint-GUID: E9r2Pyguf3EtmNYF-u6TJ9HNoEMXkUCy X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-24_04,2025-11-21_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 clxscore=1015 adultscore=0 spamscore=0 phishscore=0 priorityscore=1501 bulkscore=0 impostorscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510240000 definitions=main-2511220016 Content-Type: text/plain; charset="utf-8" Add P bit in hardware definition of region 3 and segment table entries. Move union vaddress from kvm/gaccess.c to asm/dat_bits.h Signed-off-by: Claudio Imbrenda Reviewed-by: Christian Borntraeger Reviewed-by: Steffen Eiden Reviewed-by: Christoph Schlameuss --- arch/s390/include/asm/dat-bits.h | 32 ++++++++++++++++++++++++++++++-- arch/s390/kvm/gaccess.c | 26 -------------------------- 2 files changed, 30 insertions(+), 28 deletions(-) diff --git a/arch/s390/include/asm/dat-bits.h b/arch/s390/include/asm/dat-b= its.h index 8d65eec2f124..c40874e0e426 100644 --- a/arch/s390/include/asm/dat-bits.h +++ b/arch/s390/include/asm/dat-bits.h @@ -9,6 +9,32 @@ #ifndef _S390_DAT_BITS_H #define _S390_DAT_BITS_H =20 +/* + * vaddress union in order to easily decode a virtual address into its + * region first index, region second index etc. parts. + */ +union vaddress { + unsigned long addr; + struct { + unsigned long rfx : 11; + unsigned long rsx : 11; + unsigned long rtx : 11; + unsigned long sx : 11; + unsigned long px : 8; + unsigned long bx : 12; + }; + struct { + unsigned long rfx01 : 2; + unsigned long : 9; + unsigned long rsx01 : 2; + unsigned long : 9; + unsigned long rtx01 : 2; + unsigned long : 9; + unsigned long sx01 : 2; + unsigned long : 29; + }; +}; + union asce { unsigned long val; struct { @@ -98,7 +124,8 @@ union region3_table_entry { struct { unsigned long : 53; unsigned long fc: 1; /* Format-Control */ - unsigned long : 4; + unsigned long p : 1; /* DAT-Protection Bit */ + unsigned long : 3; unsigned long i : 1; /* Region-Invalid Bit */ unsigned long cr: 1; /* Common-Region Bit */ unsigned long tt: 2; /* Table-Type Bits */ @@ -140,7 +167,8 @@ union segment_table_entry { struct { unsigned long : 53; unsigned long fc: 1; /* Format-Control */ - unsigned long : 4; + unsigned long p : 1; /* DAT-Protection Bit */ + unsigned long : 3; unsigned long i : 1; /* Segment-Invalid Bit */ unsigned long cs: 1; /* Common-Segment Bit */ unsigned long tt: 2; /* Table-Type Bits */ diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c index 21c2e61fece4..d691fac1cc12 100644 --- a/arch/s390/kvm/gaccess.c +++ b/arch/s390/kvm/gaccess.c @@ -20,32 +20,6 @@ =20 #define GMAP_SHADOW_FAKE_TABLE 1ULL =20 -/* - * vaddress union in order to easily decode a virtual address into its - * region first index, region second index etc. parts. - */ -union vaddress { - unsigned long addr; - struct { - unsigned long rfx : 11; - unsigned long rsx : 11; - unsigned long rtx : 11; - unsigned long sx : 11; - unsigned long px : 8; - unsigned long bx : 12; - }; - struct { - unsigned long rfx01 : 2; - unsigned long : 9; - unsigned long rsx01 : 2; - unsigned long : 9; - unsigned long rtx01 : 2; - unsigned long : 9; - unsigned long sx01 : 2; - unsigned long : 29; - }; -}; - /* * raddress union which will contain the result (real or absolute address) * after a page table walk. The rfaa, sfaa and pfra members are used to --=20 2.51.1