| Message ID | 20230901045947.32351-6-vikram.garhwal@amd.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | dynamic node programming using overlay dtbo | expand |
On Thu, 31 Aug 2023, 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. > > Update SUPPORT.md and CHANGELOG.md to state the Device Tree Overlays support for > Arm. > > Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> > Acked-by: Henry Wang <Henry.Wang@arm.com> > Reviewed-by: Michal Orzel <michal.orzel@amd.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> > --- > Changes from v9: > Fix style. > Changes from v7: > Add this feature as "experimental support" in CHANGELOG.md > --- > --- > 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 2516526589..24636b8eaf 100644 > --- a/CHANGELOG.md > +++ b/CHANGELOG.md > @@ -27,6 +27,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) > - On Arm, add suport for Firmware Framework for Arm A-profile (FF-A) Mediator > (Tech Preview) > - Add Intel Hardware P-States (HWP) cpufreq driver. > + - On Arm, experimental support for dynamic addition/removal of Xen device tree > + nodes using a device tree overlay binary (.dtbo). > > ### Removed > - On x86, the "pku" command line option has been removed. It has never > diff --git a/SUPPORT.md b/SUPPORT.md > index 6ce0ec29b0..3461f5cf2f 100644 > --- a/SUPPORT.md > +++ b/SUPPORT.md > @@ -855,6 +855,12 @@ xen/arch/arm/tee/ffa.c for limitations. > > 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 57bd1d01d7..650aca99ac 100644 > --- a/xen/arch/arm/Kconfig > +++ b/xen/arch/arm/Kconfig > @@ -92,6 +92,11 @@ 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 >
diff --git a/CHANGELOG.md b/CHANGELOG.md index 2516526589..24636b8eaf 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -27,6 +27,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) - On Arm, add suport for Firmware Framework for Arm A-profile (FF-A) Mediator (Tech Preview) - Add Intel Hardware P-States (HWP) cpufreq driver. + - On Arm, experimental support for dynamic addition/removal of Xen device tree + nodes using a device tree overlay binary (.dtbo). ### Removed - On x86, the "pku" command line option has been removed. It has never diff --git a/SUPPORT.md b/SUPPORT.md index 6ce0ec29b0..3461f5cf2f 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -855,6 +855,12 @@ xen/arch/arm/tee/ffa.c for limitations. 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 57bd1d01d7..650aca99ac 100644 --- a/xen/arch/arm/Kconfig +++ b/xen/arch/arm/Kconfig @@ -92,6 +92,11 @@ 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