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-rw-r--r--arch/s390/kernel/head.S47
1 files changed, 7 insertions, 40 deletions
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index fcaefb041..4431905f8 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -306,49 +306,16 @@ ENTRY(startup_kdump)
stck __LC_LAST_UPDATE_CLOCK
spt 6f-.LPG0(%r13)
mvc __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13)
- stfl 0(%r0) # store facilities @ __LC_STFL_FAC_LIST
- mvc __LC_STFLE_FAC_LIST(4),__LC_STFL_FAC_LIST
- tm __LC_STFLE_FAC_LIST,0x01 # stfle available ?
- jz 0f
- lghi %r0,FACILITIES_ALS_DWORDS-1
- .insn s,0xb2b00000,__LC_STFLE_FAC_LIST # store facility list extended
- # verify if all required facilities are supported by the machine
-0: la %r1,__LC_STFLE_FAC_LIST
- la %r2,3f+8-.LPG0(%r13)
- lhi %r3,FACILITIES_ALS_DWORDS
-1: lg %r0,0(%r1)
- ng %r0,0(%r2)
- clg %r0,0(%r2)
- jne 2f
- la %r1,8(%r1)
- la %r2,8(%r2)
- ahi %r3,-1
- jnz 1b
- j 4f
-2: l %r15,.Lstack-.LPG0(%r13)
+ l %r15,.Lstack-.LPG0(%r13)
ahi %r15,-STACK_FRAME_OVERHEAD
- la %r2,.Lals_string-.LPG0(%r13)
- l %r3,.Lsclp_print-.LPG0(%r13)
- basr %r14,%r3
- lpsw 3f-.LPG0(%r13) # machine type not good enough, crash
-.Lals_string:
- .asciz "The Linux kernel requires more recent processor hardware"
-.Lsclp_print:
- .long _sclp_print_early
-.Lstack:
- .long 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
- .align 16
-3: .long 0x000a0000,0x8badcccc
-
-# List of facilities that are required. If not all facilities are present
-# the kernel will crash.
-
- .quad FACILITIES_ALS
-
-4:
- /* Continue with startup code in head64.S */
+ brasl %r14,verify_facilities
+# For uncompressed images, continue in
+# arch/s390/kernel/head64.S. For compressed images, continue in
+# arch/s390/boot/compressed/head.S.
jg startup_continue
+.Lstack:
+ .long 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
.align 8
6: .long 0x7fffffff,0xffffffff