diff options
Diffstat (limited to 'arch/s390/kernel/head64.S')
| -rw-r--r-- | arch/s390/kernel/head64.S | 64 |
1 files changed, 1 insertions, 63 deletions
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index 79dccd206a6e..1d06961e87b3 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -125,73 +125,11 @@ startup_continue: # and create a kernel NSS if the SAVESYS= parm is defined # brasl %r14,startup_init - # set program check new psw mask - mvc __LC_PGM_NEW_PSW(8),.Lpcmsk-.LPG1(%r13) - larl %r12,machine_flags -# -# find out if we have the MVPG instruction -# - la %r1,0f-.LPG1(%r13) # set program check address - stg %r1,__LC_PGM_NEW_PSW+8 - sgr %r0,%r0 - lghi %r1,0 - lghi %r2,0 - mvpg %r1,%r2 # test MVPG instruction - oi 7(%r12),16 # set MVPG flag -0: - -# -# find out if the diag 0x44 works in 64 bit mode -# - la %r1,0f-.LPG1(%r13) # set program check address - stg %r1,__LC_PGM_NEW_PSW+8 - diag 0,0,0x44 # test diag 0x44 - oi 7(%r12),32 # set diag44 flag -0: - -# -# find out if we have the IDTE instruction -# - la %r1,0f-.LPG1(%r13) # set program check address - stg %r1,__LC_PGM_NEW_PSW+8 - .long 0xb2b10000 # store facility list - tm 0xc8,0x08 # check bit for clearing-by-ASCE - bno 0f-.LPG1(%r13) - lhi %r1,2048 - lhi %r2,0 - .long 0xb98e2001 - oi 7(%r12),0x80 # set IDTE flag -0: - -# -# find out if the diag 0x9c is available -# - la %r1,0f-.LPG1(%r13) # set program check address - stg %r1,__LC_PGM_NEW_PSW+8 - stap __LC_CPUID+4 # store cpu address - lh %r1,__LC_CPUID+4 - diag %r1,0,0x9c # test diag 0x9c - oi 6(%r12),1 # set diag9c flag -0: - -# -# find out if we have the MVCOS instruction -# - la %r1,0f-.LPG1(%r13) # set program check address - stg %r1,__LC_PGM_NEW_PSW+8 - .short 0xc800 # mvcos 0(%r0),0(%r0),%r0 - .short 0x0000 - .short 0x0000 -0: tm 0x8f,0x13 # special-operation exception? - bno 1f-.LPG1(%r13) # if yes, MVCOS is present - oi 6(%r12),2 # set MVCOS flag -1: - lpswe .Lentry-.LPG1(13) # jump to _stext in primary-space, # virtual and never return ... .align 16 .Lentry:.quad 0x0000000180000000,_stext -.Lctl: .quad 0x04b50002 # cr0: various things +.Lctl: .quad 0x04350002 # cr0: various things .quad 0 # cr1: primary space segment table .quad .Lduct # cr2: dispatchable unit control table .quad 0 # cr3: instruction authorization |