KVM Clock
Julian Stecklina
jsteckli at os.inf.tu-dresden.de
Wed Jan 15 12:05:39 UTC 2014
On 01/14/2014 05:13 PM, Peter Grehan wrote:
> Hi Julian,
>
>> is anyone working on KVM clock support for FreeBSD? If not, I might take
>> a shot at it.
>
> None I know of: go for it :)
Works for me so far:
https://github.com/blitz/freebsd/commit/cdc5f872b3e48cc0dda031fc7d6bdedc65c3148f
If anyone wants to test this, use any recent qemu with KVM:
wget http://os.inf.tu-dresden.de/~jsteckli/tmp/mfsbsd-kvmclock.iso
qemu-kvm -m 1024 -cdrom mfsbsd-kvmclock.iso.
and watch for
KVM-style paravirtualized clock detected.
Timecounter "KVMCLOCK" frequency 1000000000 Hz quality 1000
in the kernel log.
Julian
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