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linux/arch/s390/kvm
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Christian Borntraeger 6d807fb1a3 KVM: s390: Optimize ucontrol path 
commit 2955c83f72 upstream.

Since commit 7c470539c9
(s390/kvm: avoid automatic sie reentry) we will run through the C code
of KVM on host interrupts instead of just reentering the guest. This
will result in additional ucontrol exits (at least HZ per second). Let
handle a 0 intercept in the kernel and dont return to userspace,
even if in ucontrol mode.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2014-05-06 07:59:24 -07:00
..
diag.c KVM: s390: ioeventfd: ignore leftmost bits 2013-12-11 19:05:41 +01:00
gaccess.h KVM: s390: Helper for converting real addresses to absolute 2013-09-24 19:12:20 +02:00
intercept.c KVM: s390: enable Transactional Execution 2014-01-17 13:12:01 +01:00
interrupt.c Here are the 3.13 KVM changes. There was a lot of work on the PPC 2013-11-15 13:51:36 +09:00
Kconfig KVM: s390: Wire up ioeventfd. 2013-03-05 19:12:17 -03:00
kvm-s390.c KVM: s390: Optimize ucontrol path 2014-05-06 07:59:24 -07:00
kvm-s390.h KVM: s390: enable Transactional Execution 2014-01-17 13:12:01 +01:00
Makefile KVM: get rid of $(addprefix ../../../virt/kvm/, ...) in Makefiles 2013-05-19 15:14:00 +03:00
priv.c First round of KVM updates for 3.14; PPC parts will come next week. 2014-01-22 21:40:43 -08:00
sigp.c KVM: s390: SIGP START has to report BUSY while stopping a CPU 2013-12-11 19:05:21 +01:00
trace-s390.h KVM: s390: Add support for channel I/O instructions. 2013-01-07 19:53:43 -02:00
trace.h KVM: s390: Add SIGP store-status-at-address order 2013-11-28 11:08:16 +01:00