diff options
Diffstat (limited to 'pc-bios/s390-ccw/iplb.h')
| -rw-r--r-- | pc-bios/s390-ccw/iplb.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/pc-bios/s390-ccw/iplb.h b/pc-bios/s390-ccw/iplb.h index 7dfce4fbcf..5357a36d51 100644 --- a/pc-bios/s390-ccw/iplb.h +++ b/pc-bios/s390-ccw/iplb.h @@ -97,16 +97,27 @@ extern QemuIplParameters qipl; #define S390_IPL_TYPE_CCW 0x02 #define S390_IPL_TYPE_QEMU_SCSI 0xff -static inline bool store_iplb(IplParameterBlock *iplb) +static inline bool manage_iplb(IplParameterBlock *iplb, bool store) { register unsigned long addr asm("0") = (unsigned long) iplb; register unsigned long rc asm("1") = 0; asm volatile ("diag %0,%2,0x308\n" : "+d" (addr), "+d" (rc) - : "d" (6) + : "d" (store ? 6 : 5) : "memory", "cc"); return rc == 0x01; } + +static inline bool store_iplb(IplParameterBlock *iplb) +{ + return manage_iplb(iplb, true); +} + +static inline bool set_iplb(IplParameterBlock *iplb) +{ + return manage_iplb(iplb, false); +} + #endif /* IPLB_H */ |