Zachary Amsden <[email protected]> writes:
>
> We do support different HZ values, although 100HZ is actually preferable for us,
> so I don't object to that. PREEMPT is supported by us, but not as tested as I
> would like, so I also don't object to dropping it for generic paravirt guests -
> Rusty - Avi any objections to dropping preempt in terms of lguest/KVM
> paravirtualization?
>
> Paravirt-ops definitely needs a hook for kexec, although we should not disable
> kexec for the natively booted paravirt-ops. Eric - is there a way to disable it
> at runtime?
>
> We do support the doublefault task gate, and it would be good to keep it, but I
> can't complain so much if it is gone from generic paravirt kernels for now,
> because it is non-essential, and generally fatal anyway. We do need it for
> native boots of paravirt-ops kernels, however, so turning off the config option
> still needs to be revisited
Have machine_kexec_prepare fail.
I think your machine description or paravirt_ops or whatever it is needs
to hook both machine_kexec_prepare and machine_kexec.
I know there actually has been some work to get kexec actually working under
Xen but I don't know where that has gone.
Eric
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