Messages in this thread | | | From | Arnd Bergmann <> | Date | Mon, 16 Oct 2017 14:16:36 +0200 | Subject | Re: [PATCH] x86: convert x86_platform_ops to timespec64 |
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On Mon, Oct 16, 2017 at 2:08 PM, Paolo Bonzini <pbonzini@redhat.com> wrote: > 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.
Right, makes sense. I see that this interface is currently implemented only for 64-bit x86 in kvm_emulate_hypercall(). Could this be extended to x86-32 and the non-x86 architectures as well?
Arnd
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