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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2014-01-01 16:23:29 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-04-22 13:24:37 +0200 |
| commit | d95fb12ff4d73e897126043bb5d03a068997a2ef (patch) | |
| tree | e8b5b34cb7810fa7bb8f7ae3edcb2f3d7ea404da /tools/cgroup | |
| parent | KVM: s390: add 'pgm' member to kvm_vcpu_arch and helper function (diff) | |
| download | linux-d95fb12ff4d73e897126043bb5d03a068997a2ef.tar.xz linux-d95fb12ff4d73e897126043bb5d03a068997a2ef.zip | |
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>
Diffstat (limited to 'tools/cgroup')
0 files changed, 0 insertions, 0 deletions