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s390/sclp: detect intervention bypass facility

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Let's detect if we have the intervention bypass facility installed.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand 2015-11-24 12:59:03 +01:00 committed by Christian Borntraeger
parent efed110446
commit 72cd82b9e9
2 changed files with 7 additions and 1 deletions
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7
arch/s390/include/asm/sclp.h
View file

@ -38,7 +38,11 @@ struct sclp_core_entry {
u8 siif : 1;
u8 sigpif : 1;
u8 : 3;
u8 reserved2[10];
u8 reserved2[3];
u8 : 2;
u8 ib : 1;
u8 : 5;
u8 reserved3[6];
u8 type;
u8 reserved1;
} __attribute__((packed));
@ -64,6 +68,7 @@ struct sclp_info {
unsigned char has_gpere : 1;
unsigned char has_cmma : 1;
unsigned char has_gsls : 1;
unsigned char has_ib : 1;
unsigned int ibc;
unsigned int mtid;
unsigned int mtid_cp;

1
drivers/s390/char/sclp_early.c
View file

@ -149,6 +149,7 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp.has_sigpif = cpue->sigpif;
sclp.has_sief2 = cpue->sief2;
sclp.has_gpere = cpue->gpere;
sclp.has_ib = cpue->ib;
break;
}