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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-09 16:27:36 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-16 14:42:38 +0200 |
| commit | 6022afc060425864c33f4ab62bbe41d20ac85362 (patch) | |
| tree | da532cc7efa5a577d144a1682bb1cc82c3e0ce70 /arch/s390/kernel/entry64.S | |
| parent | s390: remove superfluous tpi from wait_cons_dev (diff) | |
| download | linux-dev-6022afc060425864c33f4ab62bbe41d20ac85362.tar.xz linux-dev-6022afc060425864c33f4ab62bbe41d20ac85362.zip | |
s390: make sie intercept independent of thread_info
HANDLE_SIE_INTERCEPT is called early, use supervisor state and
instruction address to decide if the reset of the PSW to sie_loop
is required.
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 | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 6b5ea904e997..570c29d9b31b 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -81,16 +81,16 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING) .macro HANDLE_SIE_INTERCEPT scratch #if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE) - tm __TI_flags+6(%r12),_TIF_SIE>>8 - jz .+42 - tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_SPP - jz .+8 - .insn s,0xb2800000,BASED(.Lhost_id) # set host id + tmhh %r8,0x0001 # interrupting from user ? + jnz .+42 lgr \scratch,%r9 slg \scratch,BASED(.Lsie_loop) clg \scratch,BASED(.Lsie_length) - jhe .+10 + jhe .+22 lg %r9,BASED(.Lsie_loop) + tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_SPP + jz .+8 + .insn s,0xb2800000,BASED(.Lhost_id) # set host id #endif .endm |