summaryrefslogtreecommitdiff
path: root/arch/s390/kernel/entry64.S
diff options
context:
space:
mode:
authorMartin Schwidefsky <schwidefsky@de.ibm.com>2010-10-25 16:10:38 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-10-25 16:10:19 +0200
commitf6649a7e5a9ee99e9623878f4a5579cc2f6cdd51 (patch)
tree183438313c7593565980a1445f208e0ba30162cd /arch/s390/kernel/entry64.S
parent1e54622e0403891b10f2105663e0f9dd595a1f17 (diff)
[S390] cleanup lowcore access from external interrupts
Read external interrupts parameters from the lowcore in the first level interrupt handler in entry[64].S. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry64.S')
-rw-r--r--arch/s390/kernel/entry64.S5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 2d205e4e7bb..e4038ea4dc5 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -727,8 +727,11 @@ ext_int_handler:
ext_no_vtime:
HANDLE_SIE_INTERCEPT
TRACE_IRQS_OFF
+ lghi %r1,4096
la %r2,SP_PTREGS(%r15) # address of register-save area
- llgh %r3,__LC_EXT_INT_CODE # get interruption code
+ llgf %r3,__LC_CPU_ADDRESS # get cpu address + interruption code
+ llgf %r4,__LC_EXT_PARAMS # get external parameter
+ lg %r5,__LC_EXT_PARAMS2-4096(%r1) # get 64 bit external parameter
brasl %r14,do_extint
j io_return