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pr=C From: Michal Orzel To: CC: Michal Orzel , Andrew Cooper , Anthony PERARD , "Jan Beulich" , Julien Grall , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , "Stefano Stabellini" , Bertrand Marquis , Volodymyr Babchuk , Alistair Francis , Connor Davis , Oleksii Kurochko Subject: [PATCH 0/3] dtuart fixes Date: Wed, 2 Sep 2026 09:36:03 +0200 Message-ID: <20260902073606.61062-1-michal.orzel@amd.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF00002326:EE_|CY8PR12MB7489:EE_ X-MS-Office365-Filtering-Correlation-Id: 80b781c0-39a0-4f2a-5edf-08df08c4dd11 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|23010399003|7416014|36860700016|376014|10067099003|18002099003|56012099006|11063799006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(23010399003)(7416014)(36860700016)(376014)(10067099003)(18002099003)(56012099006)(11063799006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: Sp2d8ValGr5u4XQDOeFdqwW3HlHajRhQJMxp/qz/sQR64yEsfMbFcfQi047vKDrta5dIHqCpHshxaDfZ3lGsSKY1trCcixywmvwzkGDtlCgSPQU6ekyquHNaGFHv1I5AK2V1JX6DxsjizFl84FQ8K02sV3V8IMVfHcHSNA/P5LGhyVV0VFMoJ845z9b0ICEvegzyun2G1RaebOkZwCRJX3OxlacxeIiTbzjiOQR1oD+G6BqeYNLWSHMyvJu1yMy12zM4l2EM3x/gg3v8Ya0++1VEocwc/LpHJDo5pORsb2P2UhebkgWZPLowKVRP7kcKytko760B06YZzWAeI7nj90D/l0seqTSzQn7Gsu4uDKZg+rbKMEDCVCRlSgy9RTObvN9/sYvRgueW4SiObn/vf+HXOdoRb6I+5+a/dM2VxvXW2dIsaswi2MacRryYSr4A X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Sep 2026 07:36:12.4685 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 80b781c0-39a0-4f2a-5edf-08df08c4dd11 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF00002326.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7489 X-purgate-ID: tlsNG-42698a/1788334578-AAAD89EA-3F566B4F/0/0 X-purgate-type: clean X-purgate-size: 531 Michal Orzel (3): cmdline: Document console=dtuart option drivers/char: Check if console=dtuart for ACPI SPCR serial bring up drivers/char: Panic when the requested UART fails to initialise docs/misc/xen-command-line.pandoc | 13 +++++-- xen/arch/arm/setup.c | 5 ++- xen/arch/riscv/setup.c | 6 +++- xen/drivers/char/uart-init.c | 56 ++++++++++++++++++------------- xen/include/xen/serial.h | 6 +++- 5 files changed, 56 insertions(+), 30 deletions(-) -- 2.43.0