linux/arch/s390/kvm
Heiko Carstens d95fb12ff4 KVM: s390: add lowcore access functions
put_guest_lc, read_guest_lc and write_guest_lc are guest access
functions which shall only be used to access the lowcore of a vcpu.
These functions should be used for e.g. interrupt handlers where no
guest memory access protection facilities, like key or low address
protection, are applicable.

At a later point guest vcpu lowcore access should happen via pinned
prefix pages, so that these pages can be accessed directly via the
kernel mapping. All of these *_lc functions can be removed then.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-04-22 13:24:37 +02:00
..
diag.c KVM: s390: make cmma usage conditionally 2014-04-22 13:24:13 +02:00
gaccess.h KVM: s390: add lowcore access functions 2014-04-22 13:24:37 +02:00
intercept.c KVM: s390: enable Transactional Execution 2014-01-17 13:12:01 +01:00
interrupt.c KVM: s390: allow injecting every kind of interrupt 2014-04-22 13:24:34 +02:00
irq.h KVM: s390: irq routing for adapter interrupts. 2014-03-21 13:43:00 +01:00
Kconfig KVM: s390: irq routing for adapter interrupts. 2014-03-21 13:43:00 +01:00
kvm-s390.c KVM: s390: export test_vfacility() 2014-04-22 13:24:35 +02:00
kvm-s390.h KVM: s390: add 'pgm' member to kvm_vcpu_arch and helper function 2014-04-22 13:24:37 +02:00
Makefile KVM: s390: irq routing for adapter interrupts. 2014-03-21 13:43:00 +01:00
priv.c KVM: s390: make cmma usage conditionally 2014-04-22 13:24:13 +02:00
sigp.c KVM: s390: Fix possible memory leak in SIGP functions 2014-03-25 13:27:11 +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: Don't enable skeys by default 2014-04-22 09:36:26 +02:00