path: root/arch/s390
diff options
authorHarald Freudenberger <freude@linux.ibm.com>2019-08-30 15:17:27 +0200
committerVasily Gorbik <gor@linux.ibm.com>2020-01-30 13:07:55 +0100
commit8f291ebf327050822d4ebf3812e5cc033ee0a88a (patch)
tree6951bb9d864c449e66c437215c78d83403e9fb5a /arch/s390
parents390/crypto: enable clear key values for paes ciphers (diff)
s390/zcrypt: enable card/domain autoselect on ep11 cprbs
For EP11 CPRBs there was only to choose between specify one or more ep11 targets or not give a target at all. Without any target the zcrypt code assumed AUTOSELECT. For EP11 this ended up in choosing any EP11 APQN with regards to the weight. However, CCA CPRBs can have a more fine granular target addressing. The caller can give 0xFFFF as AUTOSELECT for the card and/or the domain. So it's possible to address any card but domain given or any domain but card given. This patch now introduces the very same for EP11 CPRB handling. An EP11 target entry now may contain 0xFFFF as card and/or domain value with the meaning of ANY card or domain. So now the same behavior as with CCA CPRBs becomes possible: Address any card with given domain or address any domain within given card. For convenience the zcrypt.h header file now has two new defines AUTOSEL_AP and AUTOSEL_DOM covering the 0xFFFF value to address card any and domain any. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h
index f9e5e1f0821d..7f179a30beb1 100644
--- a/arch/s390/include/uapi/asm/zcrypt.h
+++ b/arch/s390/include/uapi/asm/zcrypt.h
@@ -237,7 +237,9 @@ struct zcrypt_device_matrix_ext {
struct zcrypt_device_status_ext device[MAX_ZDEV_ENTRIES_EXT];
+#define AUTOSEL_AP ((__u16) 0xFFFF)
+#define AUTOSEL_DOM ((__u16) 0xFFFF)