diff options
Diffstat (limited to 'arch/s390/boot/head.S')
| -rw-r--r-- | arch/s390/boot/head.S | 35 |
1 files changed, 12 insertions, 23 deletions
diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S index 5d3fc69a505c..3a252d140c55 100644 --- a/arch/s390/boot/head.S +++ b/arch/s390/boot/head.S @@ -184,35 +184,23 @@ iplstart: bas %r14,.Lloader # load parameter file ltr %r2,%r2 # got anything ? bz .Lnopf - chi %r2,895 - bnh .Lnotrunc - la %r2,895 + l %r3,MAX_COMMAND_LINE_SIZE+ARCH_OFFSET-PARMAREA(%r12) + ahi %r3,-1 + clr %r2,%r3 + bl .Lnotrunc + lr %r2,%r3 .Lnotrunc: l %r4,.Linitrd clc 0(3,%r4),.L_hdr # if it is HDRx bz .Lagain1 # skip dataset header clc 0(3,%r4),.L_eof # if it is EOFx bz .Lagain1 # skip dateset trailer - la %r5,0(%r4,%r2) - lr %r3,%r2 - la %r3,COMMAND_LINE-PARMAREA(%r12) # load adr. of command line - mvc 0(256,%r3),0(%r4) - mvc 256(256,%r3),256(%r4) - mvc 512(256,%r3),512(%r4) - mvc 768(122,%r3),768(%r4) - slr %r0,%r0 - b .Lcntlp -.Ldelspc: - ic %r0,0(%r2,%r3) - chi %r0,0x20 # is it a space ? - be .Lcntlp - ahi %r2,1 - b .Leolp -.Lcntlp: - brct %r2,.Ldelspc -.Leolp: - slr %r0,%r0 - stc %r0,0(%r2,%r3) # terminate buffer + + lr %r5,%r2 + la %r6,COMMAND_LINE-PARMAREA(%r12) + lr %r7,%r2 + ahi %r7,1 + mvcl %r6,%r4 .Lnopf: # @@ -394,6 +382,7 @@ SYM_DATA_START(parmarea) .quad 0 # OLDMEM_BASE .quad 0 # OLDMEM_SIZE .quad kernel_version # points to kernel version string + .quad COMMAND_LINE_SIZE .org COMMAND_LINE .byte "root=/dev/ram0 ro" |