svn commit: r204309 - in head/sys: amd64/amd64 amd64/isa conf i386/bios i386/cpufreq i386/i386 i386/isa i386/xen isa modules/bios/smbios modules/bios/vpd modules/cpufreq pc98/pc98 x86 x86/bios x86/...

Attilio Rao attilio at freebsd.org
Fri Feb 26 01:32:23 UTC 2010


2010/2/26 Xin LI <delphij at gmail.com>:
> On Thu, Feb 25, 2010 at 3:48 PM, Attilio Rao <attilio at freebsd.org> wrote:
>> 2010/2/26 M. Warner Losh <imp at bsdimp.com>:
>>> In message: <201002251413.o1PEDdKV033584 at svn.freebsd.org>
>>>            Attilio Rao <attilio at FreeBSD.org> writes:
>>> : Author: attilio
>>> : Date: Thu Feb 25 14:13:39 2010
>>> : New Revision: 204309
>>> : URL: http://svn.freebsd.org/changeset/base/204309
>>> :
>>> : Log:
>>> :   Introduce the new kernel sub-tree x86 which should contain all the code
>>> :   shared and generalized between our current amd64, i386 and pc98.
>>> :
>>> :   This is just an initial step that should lead to a more complete effort.
>>> :   For the moment, a very simple porting of cpufreq modules, BIOS calls and
>>> :   the whole MD specific ISA bus part is added to the sub-tree but ideally
>>> :   a lot of code might be added and more shared support should grow.
>>>
>>> Cool!
>>>
>>> :   Sponsored by:       Sandvine Incorporated
>>> :   Reviewed by:        emaste, kib, jhb, imp
>>> :   Discussed on:       arch
>>> :   MFC:                3 weeks
>>>
>>> Is this really wise?  Are these changes KPI neutral?
>>
>> I don't think there are (still) KPI changes.
>> Which one are you referring to?
>
> I think Warner means that there will be some header files to change
> their location, making certain (I doubt there is any but just in case)
> kernel modules maintained by third party to break (technically these
> are not part of KPI but something that _could_ make third party
> developers unhappy I guess).

Yes but what is already compiled (thirdy-part modules included) will
keep working without a glance.
I think there have been already MFCed patches doing headers movements
in the past.

Attilio


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