On Tue, Aug 27, 2013 at 2:28 PM, Han <keepsim...@gmail.com> wrote:
>
>
>
> On Tue, Aug 27, 2013 at 1:31 PM, Richard Weinberger <rich...@nod.at>wrote:
>
>> Hi!
>>
>> Am 27.08.2013 19:51, schrieb Han:
>> >
>> > On Sat, Aug 24, 2013 at 6:42 AM, richard -rw- weinberger <
>> richard.weinber...@gmail.com <mailto:richard.weinber...@gmail.com>>
>> wrote:
>> >
>> > On Fri, Aug 23, 2013 at 8:35 PM, Han <keepsim...@gmail.com <mailto:
>> keepsim...@gmail.com>> wrote:
>> > > Hi,
>> > >
>> > > I am using Linux kernel 2.6.27 for building UML kernel. It seems
>> like
>> > > "arch/x86/kernel/tsc.c" is not built in and the symbol "cpu_khz"
>> is not
>> > > available.
>> > >
>> > > My question is: what's the reason that "tsc.c" not included in
>> UML? Is
>> > > there any config or simple way(patch?) to include it in UML?
>> >
>> > Simply because UML has no TSC.
>> >
>> >
>> >
>> > [Han] I don't really understand why UML has no TSC. As I know, TSC
>> is accessible from user space process (on x86 at least) and I don't see any
>> obvious reason why UML does not
>> > support TSC. I might missed something.
>>
>> What exactly is the problem you are trying to solve?
>>
>> > I am trying to add TSC into UML kernel (2.6.27) for an experiment.
>> Is that a practical thing to do at all?
>>
>> What exactly do you want to add? TSC as a clocksource to UML..?
>>
>
> my immediate need is to compile and run an application that uses "cpu_khz"
> (which is part of tsc.c). I cannot modify the source code of the
> application as I am not the owner.
>
> [Han] sorry, when I say "application", I really meant Kernel Module.
(klm).
thanks.
Han
thanks.
> Han
>
>>
>> Thanks,
>> //richard
>>
>>
>
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