KVM: async_pf: Exploit one reg interface for pfault
To enable pfault after live migration we need to expose pfault_token, pfault_select and pfault_compare, as one reg registers to userspace. So that qemu is able to transfer this between the source and the target. Signed-off-by: NDominik Dingel <dingel@linux.vnet.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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