Re: [Xen-devel] [PATCH 47/52] xen: add basic support for runtime parameter changing

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Aug 09, 2017 at 09:07:01AM +0200, Juergen Gross wrote:
> Add the needed infrastructure for runtime parameter changing similar
> to that used at boot time via cmdline. We are using the same parsing
> functions as for cmdline parsing, but with a different array of
> parameter definitions.
> 
> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Cc: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Jan Beulich <jbeulich@xxxxxxxx>
> Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> Cc: Tim Deegan <tim@xxxxxxx>
> Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> ---
>  xen/arch/x86/xen.lds.S |  4 ++++
>  xen/common/kernel.c    |  5 +++++
>  xen/include/xen/init.h | 22 ++++++++++++++++++++--
>  xen/include/xen/lib.h  |  1 +
>  4 files changed, 30 insertions(+), 2 deletions(-)
> 
> diff --git a/xen/arch/x86/xen.lds.S b/xen/arch/x86/xen.lds.S
> index ff08bbe42a..5bd7912759 100644
> --- a/xen/arch/x86/xen.lds.S
> +++ b/xen/arch/x86/xen.lds.S
> @@ -226,6 +226,10 @@ SECTIONS
>         __start_schedulers_array = .;
>         *(.data.schedulers)
>         __end_schedulers_array = .;
> +       . = ALIGN(POINTER_ALIGN);
> +       __param_start = .;
> +       *(.data.param)
> +       __param_end = .;

Missing modification to arm/xen/lds.S

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