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pr=C Message-ID: Date: Thu, 13 Apr 2023 11:58:06 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Subject: Re: [XEN][PATCH v5 03/17] xen/arm: Add CONFIG_OVERLAY_DTB Content-Language: en-US To: Vikram Garhwal , CC: , Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Wei Liu , Bertrand Marquis , Volodymyr Babchuk References: <20230411191636.26926-1-vikram.garhwal@amd.com> <20230411191636.26926-4-vikram.garhwal@amd.com> From: Michal Orzel In-Reply-To: <20230411191636.26926-4-vikram.garhwal@amd.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT078:EE_|MW4PR12MB7440:EE_ X-MS-Office365-Filtering-Correlation-Id: 8d35228e-0865-42e8-e1f5-08db3c059624 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:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(396003)(346002)(376002)(136003)(39860400002)(451199021)(36840700001)(46966006)(40470700004)(2906002)(31686004)(8676002)(70586007)(70206006)(8936002)(5660300002)(44832011)(478600001)(41300700001)(40460700003)(316002)(40480700001)(82740400003)(426003)(336012)(36756003)(16576012)(54906003)(110136005)(4326008)(186003)(86362001)(26005)(81166007)(53546011)(2616005)(36860700001)(82310400005)(356005)(47076005)(31696002)(43740500002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Apr 2023 09:58:09.4091 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8d35228e-0865-42e8-e1f5-08db3c059624 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=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT078.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7440 Hi Vikram, On 11/04/2023 21:16, Vikram Garhwal wrote: > > > Introduce a config option where the user can enable support for adding/removing > device tree nodes using a device tree binary overlay. > > Signed-off-by: Vikram Garhwal > --- > SUPPORT.md | 6 ++++++ > xen/arch/arm/Kconfig | 5 +++++ > 2 files changed, 11 insertions(+) > > diff --git a/SUPPORT.md b/SUPPORT.md > index aa1940e55f..0a31f40af4 100644 > --- a/SUPPORT.md > +++ b/SUPPORT.md > @@ -822,6 +822,12 @@ No support for QEMU backends in a 16K or 64K domain. > > Status: Supported > > +### Device Tree Overlays > + > +Add/Remove device tree nodes using a device tree overlay binary(.dtbo). > + > + Status: Supported for ARM Hmm, so here you say supported but in Kconfig - unsupported. I think, this should be: Status, ARM: Tech Preview or Experimental > + > ### ARM: Guest ACPI support > > Status: Supported > diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig > index 239d3aed3c..1fe3d698a5 100644 > --- a/xen/arch/arm/Kconfig > +++ b/xen/arch/arm/Kconfig > @@ -53,6 +53,11 @@ config HAS_ITS > bool "GICv3 ITS MSI controller support (UNSUPPORTED)" if UNSUPPORTED > depends on GICV3 && !NEW_VGIC && !ARM_32 > > +config OVERLAY_DTB > + bool "DTB overlay support (UNSUPPORTED)" if UNSUPPORTED > + help > + Dynamic addition/removal of Xen device tree nodes using a dtbo. > + > config HVM > def_bool y > > -- > 2.17.1 > > ~Michal