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

[Costin Lupu <costin.lup@xxxxxxxxx>]

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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