Guest reboot interface

[Liu Yu-B13201 <B13201@xxxxxxxxxxxxx>]

Hi all,

When guest reboot, it's better to reset status by qemu, and then sync them back to kvm
However as you know there's no BOOKE mmu emulation in qemu,
So that qemu cannot directly reset BOOKE TLB.
Moreover a lot SPR registers also cannot be reset by qemu.

As a workaround, we need a interface that qemu can notify kvm to reset the status.
My question is, what should the interface be?
Looks like there's no alike interface in other archs.
Should we define a ioctl command number only used by BOOKE or powerpc?


Thanks,
Yu
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