diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2022-04-24 15:44:05 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2022-05-06 20:45:14 +0200 |
| commit | 734757976e337dff02da5e36dedbac8321326f5c (patch) | |
| tree | bfc3cbe3c81b37b828b6dfa7cd0ef0b9c869d47c /arch/s390/boot | |
| parent | edd4a8667355607345b76d5652adc0f300a28970 (diff) | |
s390/head: adjust iplstart entry point
Move iplstart entry point to 0x200 again, instead of the middle of the ipl
code. This way even the comment describing the ccw program is correct
again.
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot')
| -rw-r--r-- | arch/s390/boot/head.S | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S index 666692429db0..206fca8cb816 100644 --- a/arch/s390/boot/head.S +++ b/arch/s390/boot/head.S @@ -33,11 +33,13 @@ #define EP_OFFSET 0x10008 #define EP_STRING "S390EP" +#define IPL_START 0x200 + __HEAD #define IPL_BS 0x730 .org 0 - .long 0x00080000,0x80000000+iplstart # The first 24 bytes are loaded + .long 0x00080000,0x80000000+IPL_START # The first 24 bytes are loaded .long 0x02000018,0x60000050 # by ipl to addresses 0-23. .long 0x02000068,0x60000050 # (a PSW and two CCWs). .fill 80-24,1,0x40 # bytes 24-79 are discarded !! @@ -63,7 +65,7 @@ __HEAD .long 0x020006e0,0x20000050 .org __LC_RST_NEW_PSW # 0x1a0 - .quad 0,iplstart + .quad 0,IPL_START .org __LC_EXT_NEW_PSW # 0x1b0 .quad 0x0002000180000000,0x1b0 # disabled wait .org __LC_PGM_NEW_PSW # 0x1d0 @@ -71,8 +73,9 @@ __HEAD .org __LC_IO_NEW_PSW # 0x1f0 .quad 0x0002000180000000,0x1f0 # disabled wait - .org 0x200 - + .org IPL_START +ipl_start: + j .Liplcont # # subroutine to wait for end I/O # @@ -158,7 +161,7 @@ __HEAD .endr .long 0x02200050,0x00000000 -iplstart: +.Liplcont: mvi __LC_AR_MODE_ID,1 # set esame flag slr %r0,%r0 # set cpuid to zero lhi %r1,2 # mode 2 = esame (dump) |