Re: [Minios-devel] Missing ukplat_monotonic_clock for KVM platform

[Wei Chen <Wei.Chen@xxxxxxx>]

Hi Costin,

Thanks, I will pick that patch : )

> -----Original Message-----
> From: Costin Lupu <costin.lup@xxxxxxxxx>
> Sent: 2018年4月17日 18:05
> To: Wei Chen <Wei.Chen@xxxxxxx>; Simon Kuenzer (simon.kuenzer@xxxxxxxxx)
> <simon.kuenzer@xxxxxxxxx>
> Cc: minios-devel@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [Minios-devel] Missing ukplat_monotonic_clock for KVM platform
>
>
> On 04/17/2018 01:00 PM, Wei Chen wrote:
> > Hi Simon,
> >
> > While I am testing ARM64 KVM patches. I found the ukplat_monotonic_clock was
> > missing for KVM platforms (x86_64 and ARM). I have implemented this function
> > for ARM64 KVM, and the timestamp can print properly for debug messages now.
> > But on x86_64 KVM, we still get following error.
> >
> > /home/weic/WIP/unikraft/unikraft/build/libukdebug.o: In function
> `_printd_timestamp':
> > /home/weic/WIP/unikraft/unikraft/lib/ukdebug/print.c:88: undefined reference
> to `ukplat_monotonic_clock'
> >   LD      unikraft_kvm-x86_64
> > /home/weic/WIP/unikraft/unikraft/plat/linuxu/Linker.uk:9: recipe for target
> '/home/weic/WIP/unikraft/unikraft/build/unikraft_linuxu-x86_64' failed
> > make[1]: *** [/home/weic/WIP/unikraft/unikraft/build/unikraft_linuxu-x86_64]
> Error 1
> > make[1]: *** Waiting for unfinished jobs....
> > /home/weic/WIP/unikraft/unikraft/build/unikraft_kvm-x86_64.o: In function
> `_printd_timestamp':
> > /home/weic/WIP/unikraft/unikraft/lib/ukdebug/print.c:88: undefined reference
> to `ukplat_monotonic_clock'
> > /home/weic/WIP/unikraft/unikraft/plat/kvm/Linker.uk:17: recipe for target
> '/home/weic/WIP/unikraft/unikraft/build/unikraft_kvm-x86_64' failed
> > make[1]: *** [/home/weic/WIP/unikraft/unikraft/build/unikraft_kvm-x86_64]
> Error 1
> >   OBJCOPY unikraft_xen-x86_64.dbg
> >   STRIP   unikraft_xen-x86_64
> >   GZ      unikraft_xen-x86_64.gz
> > Makefile:32: recipe for target '_all' failed
> > make: *** [_all] Error 2
> >
> >
> > Should we port tscclock driver from solo5 to fix this issue?
>
> Hi Wei! There already is a pending patch series (Enable scheduling on
> KVM) containing the tscclock driver implementation (patch 'plat/kvm: Add
> KVM (x86_64) timer support').
>
> Cheers,
> Costin
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