Messages in this thread | | | Subject | Re: [PATCH] x86: convert x86_platform_ops to timespec64 | From | Paolo Bonzini <> | Date | Mon, 16 Oct 2017 14:08:22 +0200 |
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On 16/10/2017 10:11, Arnd Bergmann wrote: > Thanks! > > Since you've looked at it overall, do you have an opinion on the question > how to fix the PV interface to deal with the pvclock_wall_clock overflow?
It has to be done separately for each hypervisor.
In KVM, for example, it is probably best to abandon pvclock_read_wallclock altogether, and instead use the recently introduced KVM_HC_CLOCK_PAIRING hypercall. drivers/ptp/ptp_kvm.c is already using it and it's y2106 safe.
Paolo
> Should we add a new version now and deprecate the existing one, or > do you think that y2106 is far enough out that we should just ignore the > problem?
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