linux/arch/s390/kvm
David Hildenbrand 61a6df54b6 KVM: s390: call exit_sie() directly on vcpu block/request
Thinking about it, I can't find a real use case where we want
to block a VCPU and not kick it out of SIE. (except if we want
to do the same in batch for multiple VCPUs - but that's a micro
optimization)

So let's simply perform the exit_sie() calls directly when setting
the other magic block bits in the SIE.

Otherwise e.g. kvm_s390_set_tod_low() still has other VCPUs running
after that call, working with a wrong epoch.

Fixes: 27406cd50c ("KVM: s390: provide functions for blocking all CPUs")
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-06-02 09:38:01 +02:00
..
diag.c KVM/ARM changes for v4.1: 2015-04-07 18:09:20 +02:00
gaccess.c KVM: s390: Add MEMOP ioctls for reading/writing guest memory 2015-03-17 16:26:24 +01:00
gaccess.h KVM: s390: Add MEMOP ioctls for reading/writing guest memory 2015-03-17 16:26:24 +01:00
guestdbg.c KVM: s390: Use the read_guest_abs() in guest debug functions 2015-03-06 13:41:02 +01:00
intercept.c KVM: s390: drop handling of interception code 12 2015-05-08 15:51:17 +02:00
interrupt.c KVM: s390: factor out and optimize floating irq VCPU kick 2015-05-08 15:51:16 +02:00
irq.h KVM: s390: irq routing for adapter interrupts. 2014-03-21 13:43:00 +01:00
Kconfig rcu: Make SRCU optional by using CONFIG_SRCU 2015-01-06 11:04:29 -08:00
kvm-s390.c KVM: s390: call exit_sie() directly on vcpu block/request 2015-06-02 09:38:01 +02:00
kvm-s390.h KVM: s390: provide functions for blocking all CPUs 2015-05-08 15:51:15 +02:00
Makefile KVM: s390: hardware support for guest debugging 2014-04-22 13:24:51 +02:00
priv.c KVM: s390: Enable guest EDAT2 support 2015-05-08 15:51:14 +02:00
sigp.c KVM: s390: Guest's memory access functions get access registers 2015-03-17 16:25:04 +01:00
trace-s390.h tracing: Add TRACE_SYSTEM_VAR to kvm-s390 2015-04-07 12:31:39 -04:00
trace.h KVM: s390: interpretive execution of SIGP EXTERNAL CALL 2014-05-16 14:57:28 +02:00