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Message-ID: <12374e16-8f58-ebc1-fa78-16c9eb6f1d0b@suse.com> Date: Wed, 6 Jul 2022 09:02:47 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [xen-unstable-smoke test] 171511: regressions - FAIL Content-Language: en-US To: Demi Marie Obenour Cc: osstest service owner , xen-devel@lists.xenproject.org References: From: Jan Beulich In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: FR0P281CA0067.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:49::21) To VE1PR04MB6560.eurprd04.prod.outlook.com (2603:10a6:803:122::25) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d601995a-2fce-4bdf-0590-08da5f1d89b1 X-MS-TrafficTypeDiagnostic: AM0PR04MB6772:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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:VE1PR04MB6560.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(39860400002)(346002)(366004)(396003)(136003)(376002)(186003)(83380400001)(66556008)(4326008)(66476007)(66946007)(31686004)(8676002)(36756003)(966005)(316002)(6916009)(53546011)(6506007)(86362001)(2616005)(26005)(6512007)(478600001)(6486002)(8936002)(5660300002)(31696002)(2906002)(38100700002)(41300700001)(45980500001)(43740500002);DIR:OUT;SFP:1101; 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According to the UEFI specification ยง23.4, >>> the ESRT shall be stored in memory of type EfiBootServicesData. However, >>> memory of type EfiBootServicesData is considered general-purpose memory >>> by Xen, so the ESRT needs to be moved somewhere where Xen will not >>> overwrite it. Copy the ESRT to memory of type EfiRuntimeServicesData, >>> which Xen will not reuse. dom0 can use the ESRT if (and only if) it is >>> in memory of type EfiRuntimeServicesData. >>> >>> Earlier versions of this patch reserved the memory in which the ESRT was >>> located. This created awkward alignment problems, and required either >>> splitting the E820 table or wasting memory. It also would have required >>> a new platform op for dom0 to use to indicate if the ESRT is reserved. >>> By copying the ESRT into EfiRuntimeServicesData memory, the E820 table >>> does not need to be modified, and dom0 can just check the type of the >>> memory region containing the ESRT. The copy is only done if the ESRT is >>> not already in EfiRuntimeServicesData memory, avoiding memory leaks on >>> repeated kexec. >>> >>> See https://lore.kernel.org/xen-devel/20200818184018.GN1679@mail-itl/T/ >>> for details. >>> >>> Signed-off-by: Demi Marie Obenour >>> Reviewed-by: Jan Beulich >> >> ... this is the most likely candidate, considering in the log all we >> see is: >> >> Xen 4.17-unstable (c/s Mon Jun 27 15:15:39 2022 +0200 git:61ff273322-dirty) EFI loader >> Jul 5 23:09:15.692859 Using configuration file 'xen.cfg' >> Jul 5 23:09:15.704878 vmlinuz: 0x00000083fb1ac000-0x00000083fc880a00 >> Jul 5 23:09:15.704931 initrd.gz: 0x00000083f94b7000-0x00000083fb1ab6e8 >> Jul 5 23:09:15.836836 xenpolicy: 0x00000083f94b4000-0x00000083f94b6a5f >> Jul 5 23:09:15.980866 Using bootargs from Xen configuration file. > > This would not surprise me at all. I was hoping that Jan would be able > to test this before he merged it, especially the ARM-specific stuff. Jan (i.e. me)? I've never done any testing on Arm; all I do is build-test things there. Also if you suspected there might be issues, I think you should have arranged for someone to test this, i.e. at the very least indicate so in a post-commit-message remark targeted at the eventual committer. Jan