linux-sg2042/arch/s390/kvm
Hendrik Brueckner b5510d9b68 s390/fpu: always enable the vector facility if it is available
If the kernel detects that the s390 hardware supports the vector
facility, it is enabled by default at an early stage.  To force
it off, use the novx kernel parameter.  Note that there is a small
time window, where the vector facility is enabled before it is
forced to be off.

With enabling the vector facility by default, the FPU save and
restore functions can be improved.  They do not longer require
to manage expensive control register updates to enable or disable
the vector enablement control for particular processes.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14 14:32:08 +02:00
..
Kconfig rcu: Make SRCU optional by using CONFIG_SRCU 2015-01-06 11:04:29 -08:00
Makefile KVM: s390: hardware support for guest debugging 2014-04-22 13:24:51 +02:00
diag.c KVM: s390: add more debug data for the pfault diagnoses 2015-07-29 11:02:34 +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: filter space-switch events when PER is enforced 2015-07-29 10:36:22 +02:00
intercept.c KVM: s390: drop handling of interception code 12 2015-05-08 15:51:17 +02:00
interrupt.c Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-09-03 15:46:07 -07:00
irq.h KVM: s390: irq routing for adapter interrupts. 2014-03-21 13:43:00 +01:00
kvm-s390.c s390/fpu: always enable the vector facility if it is available 2015-10-14 14:32:08 +02:00
kvm-s390.h KVM: s390: Provide global debug log 2015-07-29 11:02:36 +02:00
priv.c KVM: s390: host STP toleration for VMs 2015-08-04 14:38:37 +02:00
sigp.c KVM: s390: adapt debug entries for instruction handling 2015-07-29 11:02:35 +02:00
trace-s390.h KVM: s390: more irq names for trace events 2015-07-29 11:02:34 +02:00
trace.h KVM: s390: interpretive execution of SIGP EXTERNAL CALL 2014-05-16 14:57:28 +02:00