tree e3d750b573ada011b48143f2ae412ddf57bcbbdf
parent 8a3caa6d74597c2a083f7c87f866891a0b12540b
author Liu Ping Fan <kernelfans@gmail.com> 1384841568 +0800
committer Alexander Graf <agraf@suse.de> 1385042205 +0100

powerpc: kvm: optimize "sc 1" as fast return

In some scene, e.g openstack CI, PR guest can trigger "sc 1" frequently,
this patch optimizes the path by directly delivering BOOK3S_INTERRUPT_SYSCALL
to HV guest, so powernv can return to HV guest without heavy exit, i.e,
no need to swap TLB, HTAB,.. etc

Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>