On Wednesday 05 June 2013 13:15:29 Stefano Stabellini wrote:
> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index c95c5cb..79dd13d 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -37,6 +37,7 @@ TEXT_OFFSET := 0x00080000
> export TEXT_OFFSET GZFLAGS
>
> core-y += arch/arm64/kernel/ arch/arm64/mm/
> +core-$(CONFIG_XEN) += arch/arm64/xen/
> libs-y := arch/arm64/lib/ $(libs-y)
> libs-y += $(LIBGCC)
>
> diff --git a/arch/arm64/xen/Makefile b/arch/arm64/xen/Makefile
> new file mode 100644
> index 0000000..be24040
> --- /dev/null
> +++ b/arch/arm64/xen/Makefile
> @@ -0,0 +1,2 @@
> +xen-arm-y += $(addprefix ../../arm/xen/, enlighten.o grant-table.o)
> +obj-y := xen-arm.o hypercall.o
I think it would be nicer to redirect the entire directory, not just
the enlighten.o and grant-table.o files. You could do in arch/arm64/Makefile:
core-(CONFIG_XEN) += arch/arm/xen/
That leaves a small difference in hypercall.o, which I think you can
handle with an #ifdef.
I believe the reason why KVM does the more elaborate variant is that
they want to be able to build their code as a loadable module that
also includes code from virt/kvm, which you don't need.
Arnd
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