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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 16:10:38 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:19 +0200 |
| commit | f6649a7e5a9ee99e9623878f4a5579cc2f6cdd51 (patch) | |
| tree | 183438313c7593565980a1445f208e0ba30162cd /arch/s390/kernel/entry64.S | |
| parent | 1e54622e0403891b10f2105663e0f9dd595a1f17 (diff) | |
| download | linux-next-f6649a7e5a9ee99e9623878f4a5579cc2f6cdd51.tar.gz | |
[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.S | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 2d205e4e7bb6..e4038ea4dc57 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 |