Re: [Xen-devel] [PATCH RFC 3/3] xen/Kconfig: add XEN_TIME_VSYSCALL option

[Boris Ostrovsky]

On 01/04/2016 11:12 AM, David Vrabel wrote:
> On 28/12/15 21:52, Joao Martins wrote:
> > This option enables support for pvclock vsyscall/vdso
> > support on Xen. Default is off, since Xen doesn't
> > expose yet the PVCLOCK_TSC_STABLE_BIT flag.
> Do we need a Kconfig option for this?  I think this should always be
> enabled.
>
> The kernel support won't be merged until the hypervisor changes have
> been accepted.

I agree. xen_setup_vsyscall_time_info() will (harmlessly) fail if 
PVCLOCK_TSC_STABLE_BIT is not set.

-boris
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