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authorCollin Walling <walling@linux.ibm.com>2018-12-06 22:30:04 (GMT)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2019-01-28 14:58:53 (GMT)
commit4ad78b8651aacf26b3ab6d1e784952eb70469c43 (patch)
treef1dc065cee2e5ce7804bd053f071ec65c1ec6c6b /arch/s390/include
parent58661489a84c27c42e27feacb1ff8a5faa3a9240 (diff)
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')
-rw-r--r--arch/s390/include/asm/diag.h12
-rw-r--r--arch/s390/include/asm/sclp.h1
2 files changed, 13 insertions, 0 deletions
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index cdbaad5..19562be 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -32,6 +32,7 @@ enum diag_stat_enum {
DIAG_STAT_X2FC,
DIAG_STAT_X304,
DIAG_STAT_X308,
+ DIAG_STAT_X318,
DIAG_STAT_X500,
NR_DIAG_STAT
};
@@ -293,6 +294,17 @@ struct diag26c_mac_resp {
u8 res[2];
} __aligned(8);
+#define CPNC_LINUX 0x4
+union diag318_info {
+ unsigned long val;
+ struct {
+ unsigned int cpnc : 8;
+ unsigned int cpvc_linux : 24;
+ unsigned char cpvc_distro[3];
+ unsigned char zero;
+ };
+};
+
int diag204(unsigned long subcode, unsigned long size, void *addr);
int diag224(void *ptr);
int diag26c(void *req, void *resp, enum diag26c_sc subcode);
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 0cd4bda..ef4c9de 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;

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