From: Vikram Garhwal <vikram.garhwal@amd.com>
To: <xen-devel@lists.xenproject.org>
Cc: <michal.orzel@amd.com>, <sstabellini@kernel.org>,
<vikram.garhwal@amd.com>, <jbeulich@suse.com>,
Henry Wang <Henry.Wang@arm.com>,
Community Manager <community.manager@xenproject.org>,
Andrew Cooper <andrew.cooper3@citrix.com>,
George Dunlap <george.dunlap@citrix.com>,
Julien Grall <julien@xen.org>, Wei Liu <wl@xen.org>,
Bertrand Marquis <bertrand.marquis@arm.com>,
Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
Subject: [XEN][PATCH v7 05/19] xen/arm: Add CONFIG_OVERLAY_DTB
Date: Thu, 1 Jun 2023 17:48:10 -0700 [thread overview]
Message-ID: <20230602004824.20731-6-vikram.garhwal@amd.com> (raw)
In-Reply-To: <20230602004824.20731-1-vikram.garhwal@amd.com>
Introduce a config option where the user can enable support for adding/removing
device tree nodes using a device tree binary overlay.
Update SUPPORT.md and CHANGELOG.md to state the Device Tree Overlays support for
Arm.
Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
---
Changes from v6:
Add CHANGELOG and SUPPORT.md entries.
---
CHANGELOG.md | 2 ++
SUPPORT.md | 6 ++++++
xen/arch/arm/Kconfig | 5 +++++
3 files changed, 13 insertions(+)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5bfd3aa5c0..a137fce576 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
- Bus-lock detection, used by Xen to mitigate (by rate-limiting) the system
wide impact of a guest misusing atomic instructions.
- xl/libxl can customize SMBIOS strings for HVM guests.
+ - On Arm, support for dynamic addition/removal of Xen device tree nodes using
+ a device tree overlay binary(.dtbo).
## [4.17.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.0) - 2022-12-12
diff --git a/SUPPORT.md b/SUPPORT.md
index 6dbed9d5d0..6b27d43cc6 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -832,6 +832,12 @@ 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, ARM: 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
next prev parent reply other threads:[~2023-06-02 0:49 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-02 0:48 [XEN][PATCH v7 00/19] dynamic node programming using overlay dtbo Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 01/19] common/device_tree: handle memory allocation failure in __unflatten_device_tree() Vikram Garhwal
2023-06-02 7:09 ` Michal Orzel
2023-06-05 18:54 ` Julien Grall
2023-06-02 0:48 ` [XEN][PATCH v7 02/19] common/device_tree.c: unflatten_device_tree() propagate errors Vikram Garhwal
2023-06-02 7:14 ` Michal Orzel
2023-06-06 19:08 ` Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 03/19] xen/arm/device: Remove __init from function type Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 04/19] common/device_tree: change __unflatten_device_tree() type Vikram Garhwal
2023-06-02 7:15 ` Michal Orzel
2023-06-05 19:04 ` Julien Grall
2023-06-06 19:09 ` Vikram Garhwal
2023-08-16 23:49 ` Vikram Garhwal
2023-08-17 7:59 ` Julien Grall
2023-06-02 0:48 ` Vikram Garhwal [this message]
2023-06-02 1:43 ` [XEN][PATCH v7 05/19] xen/arm: Add CONFIG_OVERLAY_DTB Henry Wang
2023-06-02 7:16 ` Michal Orzel
2023-06-02 9:06 ` Jan Beulich
2023-06-02 9:22 ` Henry Wang
2023-06-06 19:11 ` Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 06/19] libfdt: Keep fdt functions after init for CONFIG_OVERLAY_DTB Vikram Garhwal
2023-06-02 9:09 ` Jan Beulich
2023-06-02 0:48 ` [XEN][PATCH v7 07/19] libfdt: overlay: change overlay_get_target() Vikram Garhwal
2023-06-05 19:05 ` Julien Grall
2023-06-02 0:48 ` [XEN][PATCH v7 08/19] xen/device-tree: Add device_tree_find_node_by_path() to find nodes in device tree Vikram Garhwal
2023-06-02 1:52 ` Henry Wang
2023-06-02 7:24 ` Michal Orzel
2023-06-05 19:12 ` Julien Grall
2023-06-06 20:29 ` Vikram Garhwal
2023-06-07 6:22 ` Michal Orzel
2023-06-07 6:27 ` Henry Wang
2023-06-07 8:30 ` Luca Fancellu
2023-06-02 0:48 ` [XEN][PATCH v7 09/19] xen/iommu: Move spin_lock from iommu_dt_device_is_assigned to caller Vikram Garhwal
2023-06-02 7:45 ` Michal Orzel
2023-06-05 19:22 ` Julien Grall
2023-06-06 20:33 ` Vikram Garhwal
2023-06-02 9:19 ` Jan Beulich
2023-06-02 9:26 ` Jan Beulich
2023-06-05 19:19 ` Julien Grall
2023-08-16 23:55 ` Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 10/19] xen/iommu: protect iommu_add_dt_device() with dtdevs_lock Vikram Garhwal
2023-06-02 9:21 ` Jan Beulich
2023-06-05 19:25 ` Julien Grall
2023-06-02 0:48 ` [XEN][PATCH v7 11/19] xen/iommu: Introduce iommu_remove_dt_device() Vikram Garhwal
2023-06-02 9:22 ` Jan Beulich
2023-06-05 19:37 ` Julien Grall
2023-08-16 23:58 ` Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 12/19] xen/smmu: Add remove_device callback for smmu_iommu ops Vikram Garhwal
2023-06-02 7:47 ` Michal Orzel
2023-06-02 0:48 ` [XEN][PATCH v7 13/19] asm/smp.h: Fix circular dependency for device_tree.h and rwlock.h Vikram Garhwal
2023-06-05 19:46 ` Julien Grall
2023-06-02 0:48 ` [XEN][PATCH v7 14/19] common/device_tree: Add rwlock for dt_host Vikram Garhwal
2023-06-02 1:58 ` Henry Wang
2023-06-05 7:10 ` Michal Orzel
2023-06-05 19:52 ` Julien Grall
2023-08-16 23:59 ` Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 15/19] xen/arm: Implement device tree node removal functionalities Vikram Garhwal
2023-06-02 9:31 ` Jan Beulich
2023-06-05 7:52 ` Michal Orzel
2023-06-05 21:07 ` Julien Grall
2023-08-17 0:31 ` Vikram Garhwal
2023-08-17 8:14 ` Julien Grall
2023-06-02 0:48 ` [XEN][PATCH v7 16/19] xen/arm: Implement device tree node addition functionalities Vikram Garhwal
2023-06-05 8:35 ` Michal Orzel
2023-06-02 0:48 ` [XEN][PATCH v7 17/19] tools/libs/ctrl: Implement new xc interfaces for dt overlay Vikram Garhwal
2023-06-12 11:17 ` Anthony PERARD
2023-06-02 0:48 ` [XEN][PATCH v7 18/19] tools/libs/light: Implement new libxl functions for device tree overlay ops Vikram Garhwal
2023-06-02 0:48 ` [XEN][PATCH v7 19/19] tools/xl: Add new xl command overlay for device tree overlay support Vikram Garhwal
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