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| author |   Collin Walling <walling@linux.ibm.com> | 2018-12-06 17:30:04 -0500 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-01-28 15:58:53 +0100 |
| commit | 4ad78b8651aacf26b3ab6d1e784952eb70469c43 (patch) | |
| tree | f1dc065cee2e5ce7804bd053f071ec65c1ec6c6b /arch/s390/include/asm/sclp.h | |
| parent | Merge branch 'compat' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux into features (diff) | |
| download | linux-dev-4ad78b8651aacf26b3ab6d1e784952eb70469c43.tar.xz linux-dev-4ad78b8651aacf26b3ab6d1e784952eb70469c43.zip | |
s390/setup: set control program code via diag 318
The s390x diagnose 318 instruction sets the control program name code (CPNC)
and control program version code (CPVC) to provide useful information
regarding the OS during debugging. The CPNC is explicitly set to 4 to
indicate a Linux/KVM environment.
The CPVC is a 7-byte value containing:
- 3-byte Linux version code, currently set to 0
- 3-byte unique value, currently set to 0
- 1-byte trailing null
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <1544135405-22385-2-git-send-email-walling@linux.ibm.com>
[set version code to 0 until the structure is fully defined]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/sclp.h')
| -rw-r--r-- | arch/s390/include/asm/sclp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 0cd4bda85eb1..ef4c9dec06a4 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -78,6 +78,7 @@ struct sclp_info { unsigned char has_skey : 1; unsigned char has_kss : 1; unsigned char has_gisaf : 1; + unsigned char has_diag318 : 1; unsigned int ibc; unsigned int mtid; unsigned int mtid_cp; |