diff options
| author | Liu Ping Fan <kernelfans@gmail.com> | 2013-11-19 01:12:48 -0500 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-11-21 08:56:45 -0500 |
| commit | 27025a602cb9d8b0fa5162b465334ef059a503b6 (patch) | |
| tree | e3d750b573ada011b48143f2ae412ddf57bcbbdf /arch/powerpc/kvm/44x.c | |
| parent | 8a3caa6d74597c2a083f7c87f866891a0b12540b (diff) | |
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>
Diffstat (limited to 'arch/powerpc/kvm/44x.c')
0 files changed, 0 insertions, 0 deletions