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



On 10/08/17 18:17, Wei Liu wrote:
> 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

Indeed. Thanks for pointing it out.


Juergen


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