From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (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 D68122D876A; Mon, 16 Mar 2026 16:04:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=205.220.165.32 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773677087; cv=fail; b=qhVsq+3eOxyKYgodXcLXqKqaAQ/CN4ylHLzb3wJOPlX6Eajn4kP6S15+vcXWJP74mw9b5XUA+N3QOw1cELYBjxvu3iLA0ilgjEKPTtHSlbvjG60w9UqJ4bQZsMAq2BoOAQ17lLA3a+6TUyNrKuylpgkQ+UHdJG5qhw/tGvGr4k8= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773677087; c=relaxed/simple; bh=HRjyncOQ/e3aMWbCrTX+do5HiRGvS32fyaqXa5C/wdQ=; h=Message-ID:Date:Subject:To:Cc:References:From:In-Reply-To: Content-Type:MIME-Version; b=u2wUQSP2p51fU8kEYgrjCrtEVmm94pf0rWZYGpkUiBBt7gKl08lsXuvKOCjmn4wH9aSqHziYmgVi93mx09r3mRFKgetfzOaQCeqFgu4pqFqT4JDGutJx3AAf7AJFeicpYJqEM4PDPVTZWGn4jANnwbaTCStBJTWpgZ21J9yViiI= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=QsXl9D5S; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=GINEOrpQ; arc=fail smtp.client-ip=205.220.165.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="QsXl9D5S"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="GINEOrpQ" Received: from pps.filterd (m0246617.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62GDIw7r051567; Mon, 16 Mar 2026 16:04:39 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2025-04-25; bh=/xfEKvc6eoOvvWkSmYA8gwMPYN7PBFbnSqTlsXMCDuY=; b= QsXl9D5SxICIxAFUk6imyOG7Qm4EmoDXlFk/ihFzJfYzkY2DW2zHXPsXTkL6Xhnc oe5RYQvJwHNYhwxWHnI0xhxkjxJO7lwNBxy+F6WuZxsjT8iIaLzAJbhHxWC+Zdn9 lB0m2f7Pns/lbtRRxSAixa6k/vl4JfvSlMCxgcyybot5KQm5Xeeub1Asq8TugKzi 8SAOubAG62ML6liqZ9ShfVTAF94eri3y/jDa12o8EqUXgEvchVPXu3ZwD4GPw+PR Tsbq1Iir21TA5PZHBYS2ZmGpiwaurJVirGJJ4wZ1gt+3efCeqosgubH+nJ14rRuA FZhrc8AxGAZ7pyZucB8+UA== Received: from iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta02.appoci.oracle.com [147.154.18.20]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 4cw07rakrv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 16 Mar 2026 16:04:38 +0000 (GMT) Received: from pps.filterd (iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 62GELAge021885; Mon, 16 Mar 2026 16:04:37 GMT Received: from sn4pr2101cu001.outbound.protection.outlook.com (mail-southcentralusazon11012035.outbound.protection.outlook.com [40.93.195.35]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 4cvx4m3mr0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 16 Mar 2026 16:04:37 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=iMCdPU8u/ze16Ra6YLf6J/lnLwHmts3Zy3LgDEnUAC2G6EWYm1VqWrleRjlxCCDd6wt/bO9QT6VzeqcPh0tX5YQ4cPyyJ+QeLQ2fDAQp2Ak++IRevNWaQoYrqmTZT16j0tkdo6FGoG7mRLB1W5cX9aE1BjerdKkIapq7PaWOny85XigODlNKRmohNfZTZV1S0NS9709U5kfK205LJSty8/SJEsN0GzO5Z7YfYSHdOJjQ3zDlmIRB7fWRHC2XsCuVhhvZUMw4ZuxuDCJtZKvOSu0MglXlw4i5PUtheilMMiAblnLSSXsJdk6hfe6IHrT0IoK+qdxXIOd9YuuHfljb+g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=/xfEKvc6eoOvvWkSmYA8gwMPYN7PBFbnSqTlsXMCDuY=; b=ssSbjP9DpgPVxB9b/Ap/+4V2s45X8wsXbwWhJqlCikq6Sx5NNSxNWe/CB7Ll7S+NT0QsOJroa+nVZNye8IpLoue/HD+eSlWpbq2AV2vc9n9x4lueX76iwlVp2Lmne5wJtLUxKZ/5geubKwcb38v1pk2oi5UBamlMZwqVju2LvUAE+mSXX03K5ArJshGLwCac6xb747o27t80UtVVmPhwgmdLdyebNJFYPC8IKHP9rhfAfC1VZgolvgkBCvvkyCDXyQnHIKfKdZWLOeXIRCzFv3lkL/eaak/5A9KYZXc+feMs0X07afQIWcBoQHvhG14PVSxayRNHSqb8ULLL2soAEg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=/xfEKvc6eoOvvWkSmYA8gwMPYN7PBFbnSqTlsXMCDuY=; b=GINEOrpQgYqtaN0p9xErGHPbPByn05ho/x0e9D9qamFAiJ6o43ecM/rNTvYeYpcSWMVZ6s2AdS9xpoawxSTgReY3Yqscl/ktk8zH2FWraal7y/nY+PmTFmziNzojPZ1QGghabXCcRdTNVkw8FwfS2cgDvPk6m7oIKn+GWZV+H0o= Received: from BN0PR10MB5030.namprd10.prod.outlook.com (2603:10b6:408:12a::18) by BLAPR10MB5076.namprd10.prod.outlook.com (2603:10b6:208:30f::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9700.25; Mon, 16 Mar 2026 16:04:34 +0000 Received: from BN0PR10MB5030.namprd10.prod.outlook.com ([fe80::54d4:413b:e276:e71d]) by BN0PR10MB5030.namprd10.prod.outlook.com ([fe80::54d4:413b:e276:e71d%5]) with mapi id 15.20.9700.024; Mon, 16 Mar 2026 16:04:34 +0000 Message-ID: <354a0d93-4634-448e-bed6-eabe24ab02d1@oracle.com> Date: Mon, 16 Mar 2026 16:04:31 +0000 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/5] KVM: SEV: Drop user-triggerable WARN clean up REG_REGION To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, liam.merwick@oracle.com References: <20260313003302.3136111-1-seanjc@google.com> From: Liam Merwick Content-Language: en-GB In-Reply-To: <20260313003302.3136111-1-seanjc@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LO4P265CA0307.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:391::15) To BN0PR10MB5030.namprd10.prod.outlook.com (2603:10b6:408:12a::18) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN0PR10MB5030:EE_|BLAPR10MB5076:EE_ X-MS-Office365-Filtering-Correlation-Id: 9d213580-0333-4dfc-2708-08de8375b77f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|1800799024|22082099003|18002099003|56012099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BN0PR10MB5030.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(366016)(1800799024)(22082099003)(18002099003)(56012099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?SWFpV3BPWHhtRXVQZ0lCK3lWTFBPNGRONXlYNk9NQ3lhdXhtTytHNUhudHZI?= =?utf-8?B?eTY2R0JvV09IOUpyK1U1TVhqelRabHBMRzhReElzcDd4LzNzRG1xS3FzMGVO?= =?utf-8?B?QlBibmQreXJkSzFVdzlQSk9DaE5XN1lwNmhXYjFQNTlDOFlnZXU2NzNna3c2?= =?utf-8?B?aXB4bncxTEdJek5JcEJxdzRrVEI2bmxKcmpoZ1JoNmM2aDA0cmd6R2NjL2R2?= =?utf-8?B?MHVLZjJZalNvRWNzNWxraktXd3NSZnlLQnpGd1RjQWV1Y2drdkZUL0IyUWZY?= =?utf-8?B?QzJzM1gwMVYxVUQvb3lnbEExcm40Q3RaSFZGSGdFdHU5Lzk2SEhMKzZlbFRN?= =?utf-8?B?RWZTbEFxc2FILzVkU1Rwd2IwT2doZFhwVWdlUUlub2xpMXEzcGwxa21oOExT?= =?utf-8?B?L1dUbDMvZDY1ZitSc25Xa0Ixd1JjSU12Z3FNVEtNSUU0S0RidFdrS1lQNXRM?= =?utf-8?B?STdmaS80SmVMd2JoRmM4RksrS3BGYVNKTDcweVJWZDMvVDdTU0l4dUs1d04y?= =?utf-8?B?UGtEZTFscFI3ZzFlbTNpVnpsZGZ2TjJpOTBpb2ovUFBtS2N5eGdUVmZ5T0Ju?= =?utf-8?B?QmswY3BSTzZpeTRsbVlrQ2kvSmZYUDNJeXZla2JRRUZiREREdk95ZVlFRTdt?= =?utf-8?B?eGpIemdhSmhySVlXK1pXTUJwaEVHZTR6MUFKRC9HZS9jWTFxMDVNakhvbnlK?= =?utf-8?B?ZlFwMHZkY2E0VGV4V3N5a1dwbXFhNlg2LzFCWGtwdVB1ck9xVUI0WTRPZjhn?= =?utf-8?B?Wjc1OWcyVTFndjRQWkNJOU5POElTWDNqUERKb2dIODd2bFprZ3ZCWGhNUlQv?= =?utf-8?B?QlRVcjlRN0FEL0dvbW52V1lpajcya0p3b0lxMFRrTmhsb3c2WFprV3gveENU?= =?utf-8?B?dGZ4RXRDMEswckJRWktUbWx6aEMxTHFiQmIzZEMzM1hoaExydktEYlRUTEov?= =?utf-8?B?cHVHamd5MUNHK2hvTFNOaW1uTGlNQWkzU0ZvakVmYlNQeU85SGljYWdEOGdm?= =?utf-8?B?S3BIN1FMUFJqT0lHREh6ZlR4VVFMSk9DeUhJWG5WSDVoWDJXQmZhNW5ZdG9s?= =?utf-8?B?SFhQNHhBQytTQTdBTnVPU1gvV2czWjZzTVJESnFzZUpsMEZzdExWekJ4TnpE?= =?utf-8?B?SjB1N08vVm1lVWZhNUdiU29PZFZ1aTA0TGRPZitaanZHakh5R3VQNm1tM2hI?= =?utf-8?B?ZURNa2l5SFI3SEFGTEQ4K1AxWEtIa0lxMkpiRDlZZlNNZTVRR0o2SUUweVd4?= =?utf-8?B?R2pBRXhpRjVwcGJUdHpza1B4NXhHZkJaNjJrWDVqMVRMV1QrOE1tT2tSS1VS?= =?utf-8?B?NDFxT0NORDlyNG9mSU15ckhkZjNjTlloWlZpNkk2L0RDeW9CaGE4aDZaSWsx?= =?utf-8?B?VnJuR3gwY3hUQUlvWnVtN3BaK1NKTzlaWmJnYU05RVlXY3lkWUY0Nk5KTVJW?= =?utf-8?B?TjY5U1VvZ1lMcGJHWFJyQTNLT3RxMnhBYjBNdjJXU0NOVnhubVorYkc1UmxL?= =?utf-8?B?TlN1ck42OWRQOFRXRlViOUlnTHpGeUNpZVM4OXRqU2puOEU4RG84MDhhQldN?= =?utf-8?B?d2dtRThvRDBYY2RzTWE2MmpjTHJYOEpaOHdvQzZqOGpqejZ3TEpuUERxeUlm?= =?utf-8?B?ODdTVnBrOU1FclcyZEZwVWxnZkZDNlpQbFU0UzVzT3JycWsrQmFQSjA0LzNY?= =?utf-8?B?YklXTmVkVlNKeDRReDRWVnZsWVhnUTR0M1p1Qlh0T1dxM1lYdEZUVVNia3pC?= =?utf-8?B?TEQyOHJxVmIybnUzd3BpK1krdjFnd01UK1N5aWRyTFUvc0szbnRDVWZhdDd4?= =?utf-8?B?MzV5L0x6WlRaM0FIMXZVUU1iK3dNeXFEbXNQSDQvZzNTajlSVjg0c3luRWlV?= =?utf-8?B?d21qLytGTlVLU0pZSFJ6NVFFQXVxZXMyMVYzVjRPdEpLWCtYMkp4YmFSdEZs?= =?utf-8?B?elROenVkUnE3d2tnL3hMNnpHUnJTaU5YMW1qYzhxaHJza2JoWkxQWEpmcmM3?= =?utf-8?B?R3ZCS2h3Nkp2aEVJSXJCWW9hRW9oMXZEQytZMGlldHdOc0dqbzZueFNIbWho?= =?utf-8?B?bUNQR1JVaEZUNUxPT04xTlp5MWNmSEwyVFhmK3BWcG9mQzNGVnY4NlNwdy9L?= =?utf-8?B?amEzWkFsUkQxR0t0NjJSZjlUczViT2E5QUp6dHBxNmVKbFlyZ1l0YXZoRENT?= =?utf-8?B?NGNlbFFSUExGdHZEZDgvSEp0TlVoUzkvZU5aQU9oa3NIUkZjOTdFNmc3YjNL?= =?utf-8?B?QUF2YTZWUWtsMFh3V2JDKzZOMVZTRlVucFhKcjVLQVZ2eVhINGIwUVQzNElu?= =?utf-8?B?czRsdWZMdmxaU25ITDFXL2Z1VWl5aDRNcmZhc0VKdUN3aTNyRGVZdz09?= X-Exchange-RoutingPolicyChecked: JEE424cbwfZ/XPeMVmLygTjInldwz+//UQBcZt+IshpVC5XrSrLyajCDCKASiS4VhG4T+oyMaEFJmvIiJ/4q5N8DFOxS0H1/Sg6LcSMKzMB4U4EOQ5LJiheVkRjCcqvih0aYlEBRSFacYXQlPtJsq0JMmDyVczUmm61sZRCOaD8kmIfErfwaXo/2REchlFf73Xdmdei11O/we5MQziJWfj94ICk8Bm6NoORdI1YfdMoMp3WuiW6ci9fzMQGlDx5/W9zf/BJGEz+Y+OUD1D+YnY6QKwBok/n6N63DN29JEg4I8fLIC5RPJPZs1m0OpWAxGBQKVJAimsVSJbMcu9aasw== X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9d213580-0333-4dfc-2708-08de8375b77f X-MS-Exchange-CrossTenant-AuthSource: BN0PR10MB5030.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Mar 2026 16:04:34.8098 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: QugwJuDJBKvMIOH+u0qQ6BznhlrOqlxlbI2VCZ59vuoM4AZ8bbSvXg8CJQo0C7CAgZKGKfZhuREJZefTDZvLaw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLAPR10MB5076 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=2026-03-16_04,2026-03-16_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=893 phishscore=0 adultscore=0 malwarescore=0 spamscore=0 mlxscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2603050001 definitions=main-2603160122 X-Authority-Analysis: v=2.4 cv=HcsZjyE8 c=1 sm=1 tr=0 ts=69b82a16 b=1 cx=c_pps a=e1sVV491RgrpLwSTMOnk8w==:117 a=e1sVV491RgrpLwSTMOnk8w==:17 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=jiCTI4zE5U7BLdzWsZGv:22 a=7Gl3-_t3PgB9XO-mQDs3:22 a=yPCof4ZbAAAA:8 a=w1GKyzBUIPFB9Jlp5sAA:9 a=QEXdDO2ut3YA:10 cc=ntf awl=host:13824 X-Proofpoint-ORIG-GUID: bk75jhnDi0rn4KZF-uG0hbRUzcvoLkXa X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE2MDEyMyBTYWx0ZWRfX2+1RqWkoSvKj /emEIeThsSUWGJCpZ6sO3RVTbNUTdXtd5X436CDV8iPprC3RQb0V1+c9D6rbUZM44OTr5Dq1RL8 kLQMu40L/6n/Ing00/EaHQz3Hqp/gDlzGi+/SLoZtvyZbWr8tlAN0xUH5rZ+G0fDdWXuDQgRZcX e/RRMl35VrThmZ56YIFVvuryvdpLnlGYHHbq13wyDvVjghETtyGlYOypnwmhwnYm57w3obIvtk7 hx3hx8mSAUpW8Wlr/TEG4lNrkekSdPeTTQ14QZJCBFmcRFNVIeAXLXFipNGO9WTJjGPnhkVTYTi Di546U4UVRKoO7vyUNF6XdkkIcz0cydQ7wrT4g0grbfFG1RhnQMHvxlf2BY2VjfF13zarWKpLB5 osTf0wA35UVsLEFXfbZh1MG9HDZufNUVnmFFxX1ZDc/R0wu1JPvsDvrDHk8rqSpG4XNxqe42z3A cpE7svW10h6b29CqDuM0fX2H17PU6GEYV7v/dUTY= X-Proofpoint-GUID: bk75jhnDi0rn4KZF-uG0hbRUzcvoLkXa On 13/03/2026 00:32, Sean Christopherson wrote: > Drop a WARN in sev_pin_memory() that is comically easy to trigger, and then > clean up the code a bit. > > *** WARNING *** > > The last patch impacts KVM's ABI due to a size restriction that's applied to > kvmalloc() but not vmalloc(). If my math is correct (definitely a big "if), > it will only impact VMMs that attempt to do KVM_MEMORY_ENCRYPT_REG_REGION with > a single region of ~1TiB+. > > Liam, I Cc'd you specifically because it looks like Oracle supports SEV VMs > with more than 1TiB of _total_ memory. I assume that's spread across multiple > memslots and thus multiple KVM_MEMORY_ENCRYPT_REG_REGION calls, but I wanted to > double check before potentially breaking userspace. I tested the series with various sized large memory SEV VMs and all seemed good to me. For the series: Reviewed-by: Liam Merwick Tested-by: Liam Merwick > > Sean Christopherson (5): > KVM: SEV: Drop WARN on large size for KVM_MEMORY_ENCRYPT_REG_REGION > KVM: SEV: Drop useless sanity checks in sev_mem_enc_register_region() > KVM: SEV: Disallow pinning more pages than exist in the system > KVM: SEV: Use PFN_DOWN() to simplify "number of pages" math when > pinning memory > KVM: SEV: Use kvzalloc_objs() when pinning userpages > > arch/x86/kvm/svm/sev.c | 51 +++++++++++++++++++++--------------------- > 1 file changed, 25 insertions(+), 26 deletions(-) > > > base-commit: bfd7f4adc1230373c25e1b787a6f1ee407eb0656