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Tue, 7 Sep 2021 10:10:18 +0000 Received: from VI1PR04MB5600.eurprd04.prod.outlook.com ([fe80::4d37:ec64:4e90:b16b]) by VI1PR04MB5600.eurprd04.prod.outlook.com ([fe80::4d37:ec64:4e90:b16b%7]) with mapi id 15.20.4500.014; Tue, 7 Sep 2021 10:10:18 +0000 Subject: [PATCH 5/9] xen/x86: make "earlyprintk=xen" work for HVM/PVH DomU From: Jan Beulich To: Juergen Gross , Boris Ostrovsky References: <4efa804e-3250-227f-00c7-347581366cd4@suse.com> Message-ID: <5e9ff16e-85f0-50ea-f053-37e17351a0cc@suse.com> Date: Tue, 7 Sep 2021 12:10:16 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 In-Reply-To: <4efa804e-3250-227f-00c7-347581366cd4@suse.com> Content-Language: en-US X-ClientProxiedBy: AM0PR10CA0116.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:e6::33) To VI1PR04MB5600.eurprd04.prod.outlook.com (2603:10a6:803:e7::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [10.156.60.236] (37.24.206.209) by AM0PR10CA0116.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:e6::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.19 via Frontend Transport; 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Adjust documentation accordingly. Signed-off-by: Jan Beulich Reviewed-by: Juergen Gross --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1266,7 +1266,7 @@ The VGA and EFI output is eventually overwritten by the real console. - The xen output can only be used by Xen PV guests. + The xen option can only be used in Xen domains. The sclp output can only be used on s390. --- a/drivers/tty/hvc/hvc_xen.c +++ b/drivers/tty/hvc/hvc_xen.c @@ -618,10 +618,8 @@ static int __init xenboot_console_setup( { static struct xencons_info xenboot; - if (xen_initial_domain()) + if (xen_initial_domain() || !xen_pv_domain()) return 0; - if (!xen_pv_domain()) - return -ENODEV; return xencons_info_pv_init(&xenboot, 0); }