From nobody Fri May 9 13:38:40 2025
Delivered-To: importer@patchew.org
Authentication-Results: mx.zohomail.com;
dkim=pass;
spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as
permitted sender)
smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org;
arc=pass (i=1 dmarc=pass fromdomain=oracle.com);
dmarc=fail(p=reject dis=none) header.from=oracle.com
ARC-Seal: i=2; a=rsa-sha256; t=1738404478; cv=pass;
d=zohomail.com; s=zohoarc;
b=dg4EoOAPHOQ+juzjl9l3rjjHlqM67bv9jV8BFz3YjYMNZIaB3iCley3NbF/yjCO/1XcyjcBhz0wNAR8LGoF7g51THM+IAuAfEFS7tR3P18fkt7qPzXsDkvCjuF+l1g2+LUkZCRx4NM5px3QhNyhJK8d7+GHavx0NKlFl3tct3AQ=
ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com;
s=zohoarc;
t=1738404478;
h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To;
bh=MMfRS/V+Hryx0stbzfEGRLl3krVuFC4yA62E4dGr76w=;
b=JXShp+bTrQK5jzWDA44Lvl7C7wTUvE5d2+v3QXTB4TxuulGgAlThOX2qoA5+1z8vZSEp+mhjOuGJR7sogrd6VDPhKdBcD9pPBRTKdbNGDz1dksnrtvlytVX2mDhVf0uIwD9D4uBncKAxiXTz6CBPPJAgtur/IntWcP1FGSkwjXc=
ARC-Authentication-Results: i=2; mx.zohomail.com;
dkim=pass;
spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as
permitted sender)
smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org;
arc=pass (i=1 dmarc=pass fromdomain=oracle.com);
dmarc=fail header.from=<william.roche@oracle.com> (p=reject dis=none)
Return-Path: <qemu-devel-bounces+importer=patchew.org@nongnu.org>
Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by
mx.zohomail.com
with SMTPS id 1738404478366348.3998931180463;
Sat, 1 Feb 2025 02:07:58 -0800 (PST)
Received: from localhost ([::1] helo=lists1p.gnu.org)
by lists.gnu.org with esmtp (Exim 4.90_1)
(envelope-from <qemu-devel-bounces@nongnu.org>)
id 1teALx-0002Km-9I; Sat, 01 Feb 2025 05:03:55 -0500
Received: from eggs.gnu.org ([2001:470:142:3::10])
by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
(Exim 4.90_1) (envelope-from <william.roche@oracle.com>)
id 1teAKs-0001yW-Jd; Sat, 01 Feb 2025 05:02:47 -0500
Received: from mx0a-00069f02.pphosted.com ([205.220.165.32])
by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
(Exim 4.90_1) (envelope-from <william.roche@oracle.com>)
id 1teAKq-0007pl-4o; Sat, 01 Feb 2025 05:02:46 -0500
Received: from pps.filterd (m0333521.ppops.net [127.0.0.1])
by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id
5119SN9H011526;
Sat, 1 Feb 2025 10:02:34 GMT
Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com
(phxpaimrmta03.appoci.oracle.com [138.1.37.129])
by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 44hfcgr3g9-1
(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);
Sat, 01 Feb 2025 10:02:33 +0000 (GMT)
Received: from pps.filterd
(phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1])
by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2)
with ESMTP id 5118j85G008838; Sat, 1 Feb 2025 09:57:33 GMT
Received: from nam04-dm6-obe.outbound.protection.outlook.com
(mail-dm6nam04lp2044.outbound.protection.outlook.com [104.47.73.44])
by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id
44ha25fbmy-1
(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);
Sat, 01 Feb 2025 09:57:32 +0000
Received: from CH3PR10MB7329.namprd10.prod.outlook.com (2603:10b6:610:12c::16)
by CO1PR10MB4418.namprd10.prod.outlook.com (2603:10b6:303:94::9) with
Microsoft SMTP Server (version=TLS1_2,
cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8398.22; Sat, 1 Feb
2025 09:57:30 +0000
Received: from CH3PR10MB7329.namprd10.prod.outlook.com
([fe80::f238:6143:104c:da23]) by CH3PR10MB7329.namprd10.prod.outlook.com
([fe80::f238:6143:104c:da23%6]) with mapi id 15.20.8398.018; Sat, 1 Feb 2025
09:57:30 +0000
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-2023-11-20; bh=MMfRS/V+Hryx0stbzfEGRLl3krVuFC4yA62E4dGr76w=; b=
PxWVQoi558rSxWam/ePKbfxgpHf/GHG9Ad6ee84rR0U+u6nYOJ+xqc/ey8NzWcXc
8/5vjzNQTLOnL25pAmdCauR0SZ9+hxGZljz5q/43IbiJSM/KqYeap2QGzGRsmmDA
+BNx4b7m4dxM6aYdeNTh0OmViTcBRMUiGiei45VgtwF55YMnuCFsDFBGbs5bpwc7
Pz8qDDo6Nsz8mzJO+VP1lul+0tMvOKmC6Lpw4fmnMdeobxI97Q0RPnXjqd7gQvwY
e2y684ABEV9EiXhe1SvJcK1LUHl42NHCultuBan27Yv7ax04/ZyaZBXcyyHy3BkB
Sqs8UhFTDS8Hua5k31h04A==
ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none;
b=AVdXXY0QTWs+CHsvrZ+jS1KxP5zNzqNElt/OTtOz5Yqw1Fot+YTnkS5lyrMOxNdUZ4ToWRP3Fr9hX6KHH0fW36BnnnxfHof+7+0jURggwfp/+v/9B65pMJU/cCeygq7bf5pgYtmP8NZ1r9K+LbkZUfBESKsvHwTvWhyfoLEEUiHBx7D//f3RVP9wifj2lx2CPsGQFhgmGqk+vJ7oKxw47/mkgIL1xV6LwlghJmY9ZVNgkpk0fbzjjiV3LcnHcsTpQZahKbfhsJP7k1b48jaTFuGOtkVKnwkOdDF6Eht7lsbI+00eKeiJYNNqaqQk7v9LbZoJVljB2eMZHQfFLSIwPw==
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=MMfRS/V+Hryx0stbzfEGRLl3krVuFC4yA62E4dGr76w=;
b=uwx9aRUW9tZiJlSisJPDAcYLmi0Cl0dgguQztvWCepN+N1t/NLfeza5QY4w8Lc8O4RErWprZgMz6bbFb0R7bWJ/5NRWa1Hr/gKVdJ9HrO3zhtppAJXi4wMcHC1eVaRzsKl25z/sGxCbRcpLLt/en3b2HRdco6u8QDqoRQq6iXL71c6YkG2uaZ7OKK6T5fCgr5i8HB5i3S4B9KIsasoyG8RtiImBb+weFuMfwth9j5telVrEov1Ke+iElC/IVnAYWNsinWuOmSENkFiSHscuvc/O+hm3H8ZwMVr2K9qceVHnTMAEBWPMmwQdxjq373/I5FAETDkhNJics0b3oE4y1aw==
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=MMfRS/V+Hryx0stbzfEGRLl3krVuFC4yA62E4dGr76w=;
b=ZTv51X8a96p+4gn4UGXbwHv4bQkBfKl6OZrFubjnLgf6mkVRV16wtG3kLMIxAcS3SpwbqEf6Utd/UZ2ZK+RBNaO4j4qpxlmY3zyojtPqVahXifLyJl5n1LAmHjjDlqQV7HXr7+MU9mI9PhbVg+tNCqi6vhKewK7RNCoVS6NF+WA=
From: =?UTF-8?q?=E2=80=9CWilliam=20Roche?= <william.roche@oracle.com>
To: david@redhat.com, kvm@vger.kernel.org, qemu-devel@nongnu.org,
qemu-arm@nongnu.org
Cc: william.roche@oracle.com, peterx@redhat.com, pbonzini@redhat.com,
richard.henderson@linaro.org, philmd@linaro.org,
peter.maydell@linaro.org, mtosatti@redhat.com, imammedo@redhat.com,
eduardo@habkost.net, marcel.apfelbaum@gmail.com,
wangyanan55@huawei.com, zhao1.liu@intel.com, joao.m.martins@oracle.com
Subject: [PATCH v7 1/6] system/physmem: handle hugetlb correctly in
qemu_ram_remap()
Date: Sat, 1 Feb 2025 09:57:21 +0000
Message-ID: <20250201095726.3768796-2-william.roche@oracle.com>
X-Mailer: git-send-email 2.43.5
In-Reply-To: <20250201095726.3768796-1-william.roche@oracle.com>
References: <20250201095726.3768796-1-william.roche@oracle.com>
Content-Transfer-Encoding: quoted-printable
X-ClientProxiedBy: SJ0PR03CA0094.namprd03.prod.outlook.com
(2603:10b6:a03:333::9) To CH3PR10MB7329.namprd10.prod.outlook.com
(2603:10b6:610:12c::16)
MIME-Version: 1.0
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: CH3PR10MB7329:EE_|CO1PR10MB4418:EE_
X-MS-Office365-Filtering-Correlation-Id: 226f3f40-3b03-4a1c-eb52-08dd42a6d758
X-MS-Exchange-SenderADCheck: 1
X-MS-Exchange-AntiSpam-Relay: 0
X-Microsoft-Antispam: BCL:0;
ARA:13230040|376014|7416014|366016|1800799024|7053199007;
X-Microsoft-Antispam-Message-Info:
=?us-ascii?Q?ED6T4UWfEX7plSpZpIznczQImlm7/IxwkTv8InH2kMtYsJk207B5tAGHQVLF?=
=?us-ascii?Q?OHaDQGDZetsW4sS3zEtH6fALwHmyKVkZhcM9rIoFVl6b2PEsHtAfuJ+ssY5r?=
=?us-ascii?Q?QiSZE43b3n5gJ8GF43h3P/zA4XK4I9NpQV6iSe9521nIiFkO80VFptKTzey6?=
=?us-ascii?Q?tUP7nP6yHpuMXIdNrzj8kiaNxi7b20SZtnKDOlfDl1HMvzC3MC6G6pIg3Byo?=
=?us-ascii?Q?yVdHmp/dwnUuEA2PLHG578DrcnuauTWITufRTPHxGMuvzqCmeGB3CQjTyU3U?=
=?us-ascii?Q?fY+hKYAuv503grJ8c4y8dcW4zPVjeAzV+pwntZoAjrWAktSGbkGsC5WfpB7B?=
=?us-ascii?Q?teXId3zz0KjdolMc0RtTyOFb33k6WKLeOKH8AYzM6Oh9eJOM+4lUrCY1Vbih?=
=?us-ascii?Q?+PPLji7kZdBDiwuCqg26GhlLq0VvjMmzpWBKVmb7bF4YUfwKTzr5cumOYGyf?=
=?us-ascii?Q?E2AAU935sHncPXgyY0kKRhT9x7Rvv+T3HwVNEc4ZOvXiGbTEE13670QqZURw?=
=?us-ascii?Q?ML2vwA/DkwceRgibGOnn+ixddVh/PuvLX20638D1aQ6KmOwWIu+I8+fULuo1?=
=?us-ascii?Q?7cbgcLk46j9vnUEjE9Iz9foatGEMVQBVZxx6M7p6x3cjnEVmuat5JY47aerZ?=
=?us-ascii?Q?8c8gbg/PVY1xpVCG/cqzssAIyStE0nIPuoe7lan/+DqdCzzNKAcs2sOUC+eV?=
=?us-ascii?Q?5kjkCZ7gYeMcdfw8eJiOf/bIH8BqnYvtE1nhTWM58rExjvwBMGjnKg4WmnMn?=
=?us-ascii?Q?GY7Yegmf2JgvOw+k1xwCaX54MtAvFktjsVhpm/fukqAafe0R3GVx8rtImPpE?=
=?us-ascii?Q?NyqU94fhtf2AwmcBY/8dQwqnW94OD5xFEasXCsiMAwfUTq3gB7jZBznPbRQK?=
=?us-ascii?Q?ZMDUGxzM6/ltl3OsZbZEBvXvzHt2VcrcDgT8zcmBFxp6wpoPwR4ZBe/G8fnr?=
=?us-ascii?Q?vLrau1mfl3uFR8Bc0EOhMhFON+tUydVomPFusYPNd9Awo737GlrBJ6BfZVuK?=
=?us-ascii?Q?yNa/NlMjkNfQp7AOVCUlb7vnu8W6e8Jjf4zAsfPdVaJDE89PwWX4/mzwnKNT?=
=?us-ascii?Q?av0utBPFuzwYuGdUhMxcis95PAPTifdBOr0QCTAABw8tA3uU/BfHSOQVitBA?=
=?us-ascii?Q?/AShYh/d+Ez4EvfJC9pZaFV6zLeB9ksxbWOT/lVRY5O9YysZFXnU1U4/xkzK?=
=?us-ascii?Q?fdMTkgNw7WM/KsIlH0Ti29KSSr7NWwU6Aye225qnORggJHRITGePutybABU8?=
=?us-ascii?Q?eQ16/Ilf0mfkmAawWRfuwhMM0pHe1BqPQHqNifa+3aGZhM9YGjR+BAjeD5Cu?=
=?us-ascii?Q?9fd6XTOHVybO0bN5Lk7D82LjdnlrEshV6Dnti8VFHdVHV7ABNf+vHL9KowVz?=
=?us-ascii?Q?d7EgE0pD5aqw1XCV4ZKz9pnc8n4u?=
X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;
IPV:NLI; SFV:NSPM; H:CH3PR10MB7329.namprd10.prod.outlook.com; PTR:; CAT:NONE;
SFS:(13230040)(376014)(7416014)(366016)(1800799024)(7053199007); DIR:OUT;
SFP:1101;
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0:
=?us-ascii?Q?aqrWM0SmFnMe/aO76CGP5/veuHt/udXdRLDdMQOgqsdpFq8lxMc5UvmUTt5n?=
=?us-ascii?Q?9VDZlwQoez1ZBqmkLEFHx3gKC13kSSdd88jycEH3ImFAOnmcyoTssbg4vzEG?=
=?us-ascii?Q?s7RyL6x19iXZxo++WGTaWmZ3IpfWmqkX1AzSY4bhEMyzghTdCqPUriVoErg4?=
=?us-ascii?Q?mfNZx8KxTld/1/aoASX94M9hGsgVhTzVZadJpW6SR+jxc0m6nSq2ZvYeDsuZ?=
=?us-ascii?Q?tE9j88r7zsPpXm0/lqqj2dvf9c/yY9FwQdH2jPzyKMbRAuJ0ht9TZOYGAbP7?=
=?us-ascii?Q?ML1YL6GYn2ZurF8JL9ahciIMwXy5vVCfZ/VfMsAuPIp14J/bCusxuhBzYkPH?=
=?us-ascii?Q?BtL+DOu0MyaFu+J65sH7Mzpjq5b8OEt5Nqsu2fAz6ojMRgtqVPiC28JvyhzE?=
=?us-ascii?Q?xgRZQUQ0WDijj8WrJ0vcEQ1fmTa1TpfTGH97u6eSVBQ/y3mSHaDG9N7JBL7g?=
=?us-ascii?Q?rNMWTCyzXp+akpZRsw105bl3g5Fkr6bEtjHAKhh0EY74A45J0Y8wgUQ5zb2G?=
=?us-ascii?Q?46wllFCKQNtEgCHTyEHV/4dBnx9aUIv/2se5avjddWkRtYkxmfPOfII7wVLu?=
=?us-ascii?Q?iVZjS+Oym+1MwIVh5LJA5lfurl46tW+D1x2grQxDEWZ8rY3Tej/4diffiQ4F?=
=?us-ascii?Q?77W2cKXs+4UvJAiR1X5lXHc+gkm62on6h/g5hOb0od2h757k7vYIW5U8dKZq?=
=?us-ascii?Q?SgXqIoWBtKBPY1nlYVxjlD2q+JB6AhO7L3IBLGgjBUvVU2OGnKxA2F68u7t/?=
=?us-ascii?Q?gAX969j7ZUNbQKKJEMaTEBJ68CCZka7SpCgN0siYcmRcqW/hyQSR/o+9Iz0u?=
=?us-ascii?Q?pM40Xid78Ca51M15eX+EfMGPOG4dsS9PP0nVPkApQa0bu3YUZqSbWFttiGvF?=
=?us-ascii?Q?X/C98+7AECYNmR2V4CEfxV3/S74lqcEdtamjpa37PLnL9iAcQ3c/RGX6U4yo?=
=?us-ascii?Q?OpJK1gF0VakjHRLGdp/alsFVzEz3aJHniyvI6jIZAQrmp8QlKUbCQeqSIAKK?=
=?us-ascii?Q?bhRrBDPGkzD8M7V69lUWweE2ihPv4kR9PkhVKzoevQbhkbWoKOTGKPQF1pV9?=
=?us-ascii?Q?WSsSb0LkLF33SSAMgcwISmOrRzAmuAV1ai+80dWiV2BYZCP16FSCx7JhpN6z?=
=?us-ascii?Q?YTBNRtEvJmRDQMeb0fcVvvKM82czOM8Q/O6GKbAfiMn+IdwlWQSJPgxvEMZ3?=
=?us-ascii?Q?uiHnE/QFBo7UPoQKIpeWWt1KnTwSAhpk6o3x2OYQlxmR9jd7kv6Imzee3ouM?=
=?us-ascii?Q?LC0T7L2axupBgT67Bei+4EwapZCX4hHEt4zJ2tVPPdyXxG1BTRduuc8TtNfj?=
=?us-ascii?Q?xY+0T0OKzCZg9NA1dtLcDdvZMBXXcQUIzPu8ZPuZlbcwkI0WDVVAMSryxRSx?=
=?us-ascii?Q?qyo8o5wAdA3klEL3r2B1yAOFRGv0ZOr0mfdCIKNjjTnRdZIfAlG1TtcgRuEn?=
=?us-ascii?Q?JbBI4Q5L9zjpFOmsOGDMPDhf6jJiuI6JdW/93PKVGHv9ZYXoiY/X4jJuh2v8?=
=?us-ascii?Q?d4/wwtwajTBqmsiDXZJrBGgPDtEy9Mc96lu93uOPok1mpke3K5YtxYWweHlK?=
=?us-ascii?Q?PVn5tnnRIYcVaQjyaistjU798xV9CBpZhuBOlWoY4xkaoZsOs0+xrDQFqvfp?=
=?us-ascii?Q?EQ=3D=3D?=
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:
226f3f40-3b03-4a1c-eb52-08dd42a6d758
X-MS-Exchange-CrossTenant-AuthSource: CH3PR10MB7329.namprd10.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Feb 2025 09:57:30.4244 (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:
JwC3KXweXquMcE3OvRhLzxMU4WMEh+G6EJ7TCHtVspPQvDgQg3GWyh723YsJ3qHXCESqRkouHcpj/1h0YGnfH5n6ifo1UK5gh4EGwiZGxmg=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4418
X-Proofpoint-Virus-Version: vendor=baseguard
engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34
definitions=2025-02-01_04,2025-01-31_02,2024-11-22_01
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0
mlxlogscore=999
mlxscore=0 phishscore=0 spamscore=0 adultscore=0 suspectscore=0
bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1
engine=8.12.0-2501170000 definitions=main-2502010085
X-Proofpoint-GUID: o-2NZiEjKINZj8JZcFUKVV5DesK-Qwwo
X-Proofpoint-ORIG-GUID: o-2NZiEjKINZj8JZcFUKVV5DesK-Qwwo
Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17
as permitted sender) client-ip=209.51.188.17;
envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org;
helo=lists.gnu.org;
Received-SPF: pass client-ip=205.220.165.32;
envelope-from=william.roche@oracle.com; helo=mx0a-00069f02.pphosted.com
X-Spam_score_int: -27
X-Spam_score: -2.8
X-Spam_bar: --
X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,
DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,
RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=0.001,
RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org
Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org
X-ZohoMail-DKIM: pass (identity @oracle.onmicrosoft.com)
X-ZM-MESSAGEID: 1738404480013019000
Content-Type: text/plain; charset="utf-8"
From: William Roche <william.roche@oracle.com>
The list of hwpoison pages used to remap the memory on reset
is based on the backend real page size.
To correctly handle hugetlb, we must mmap(MAP_FIXED) a complete
hugetlb page; hugetlb pages cannot be partially mapped.
Signed-off-by: William Roche <william.roche@oracle.com>
Co-developed-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
---
accel/kvm/kvm-all.c | 2 +-
include/exec/cpu-common.h | 2 +-
system/physmem.c | 38 +++++++++++++++++++++++++++++---------
3 files changed, 31 insertions(+), 11 deletions(-)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index c65b790433..f89568bfa3 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1288,7 +1288,7 @@ static void kvm_unpoison_all(void *param)
=20
QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) {
QLIST_REMOVE(page, list);
- qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE);
+ qemu_ram_remap(page->ram_addr);
g_free(page);
}
}
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index b1d76d6985..3771b2130c 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -67,7 +67,7 @@ typedef uintptr_t ram_addr_t;
=20
/* memory API */
=20
-void qemu_ram_remap(ram_addr_t addr, ram_addr_t length);
+void qemu_ram_remap(ram_addr_t addr);
/* This should not be used by devices. */
ram_addr_t qemu_ram_addr_from_host(void *ptr);
ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr);
diff --git a/system/physmem.c b/system/physmem.c
index c76503aea8..3dd2adde73 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -2167,17 +2167,35 @@ void qemu_ram_free(RAMBlock *block)
}
=20
#ifndef _WIN32
-void qemu_ram_remap(ram_addr_t addr, ram_addr_t length)
+/*
+ * qemu_ram_remap - remap a single RAM page
+ *
+ * @addr: address in ram_addr_t address space.
+ *
+ * This function will try remapping a single page of guest RAM identified =
by
+ * @addr, essentially discarding memory to recover from previously poisoned
+ * memory (MCE). The page size depends on the RAMBlock (i.e., hugetlb). @a=
ddr
+ * does not have to point at the start of the page.
+ *
+ * This function is only to be used during system resets; it will kill the
+ * VM if remapping failed.
+ */
+void qemu_ram_remap(ram_addr_t addr)
{
RAMBlock *block;
- ram_addr_t offset;
+ uint64_t offset;
int flags;
void *area, *vaddr;
int prot;
+ size_t page_size;
=20
RAMBLOCK_FOREACH(block) {
offset =3D addr - block->offset;
if (offset < block->max_length) {
+ /* Respect the pagesize of our RAMBlock */
+ page_size =3D qemu_ram_pagesize(block);
+ offset =3D QEMU_ALIGN_DOWN(offset, page_size);
+
vaddr =3D ramblock_ptr(block, offset);
if (block->flags & RAM_PREALLOC) {
;
@@ -2191,21 +2209,23 @@ void qemu_ram_remap(ram_addr_t addr, ram_addr_t len=
gth)
prot =3D PROT_READ;
prot |=3D block->flags & RAM_READONLY ? 0 : PROT_WRITE;
if (block->fd >=3D 0) {
- area =3D mmap(vaddr, length, prot, flags, block->fd,
+ area =3D mmap(vaddr, page_size, prot, flags, block->fd,
offset + block->fd_offset);
} else {
flags |=3D MAP_ANONYMOUS;
- area =3D mmap(vaddr, length, prot, flags, -1, 0);
+ area =3D mmap(vaddr, page_size, prot, flags, -1, 0);
}
if (area !=3D vaddr) {
- error_report("Could not remap addr: "
- RAM_ADDR_FMT "@" RAM_ADDR_FMT "",
- length, addr);
+ error_report("Could not remap RAM %s:%" PRIx64 "+%" PR=
Ix64
+ " +%zx", block->idstr, offset,
+ block->fd_offset, page_size);
exit(1);
}
- memory_try_enable_merging(vaddr, length);
- qemu_ram_setup_dump(vaddr, length);
+ memory_try_enable_merging(vaddr, page_size);
+ qemu_ram_setup_dump(vaddr, page_size);
}
+
+ break;
}
}
}
--=20
2.43.5