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Re: [PATCH v2 5/5] xen/common: move device initialization code to common code
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 23 Sep 2024 16:43:09 +0200
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 23 Sep 2024 14:43:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 17.09.2024 18:15, Oleksii Kurochko wrote:
> --- a/xen/common/Kconfig
> +++ b/xen/common/Kconfig
> @@ -12,6 +12,14 @@ config CORE_PARKING
> bool
> depends on NR_CPUS > 1
>
> +config DEVICE_INIT
> + bool
> + default !X86
This can simply be "def_bool y" as ...
> + depends on !X86 && (ACPI || HAS_DEVICE_TREE)
... this enforces all restrictions. As indicated before I'd prefer if we
could get away without yet another Kconfig constant, which would then
also eliminate my concern about the expression not really covering for
the case where x86 would obtain DT support (and hence likely needing the
initialization here, too). What about ...
> --- a/xen/common/Makefile
> +++ b/xen/common/Makefile
> @@ -6,6 +6,7 @@ obj-$(CONFIG_HYPFS_CONFIG) += config_data.o
> obj-$(CONFIG_CORE_PARKING) += core_parking.o
> obj-y += cpu.o
> obj-$(CONFIG_DEBUG_TRACE) += debugtrace.o
> +obj-$(CONFIG_DEVICE_INIT) += device.o
obj-$(CONFIG_HAS_DEVICE_TREE) += device.o
obj-$(filter-out $(CONFIG_X86),$(CONFIG_ACPI)) += device.o
? (Eventually we could then simplify this to just obj-$(CONFIG_ACPI),
to allow DT on x86, making sure the ACPI part of the file builds for
x86 but does nothing there.)
Jan
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