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Remove premature memop TB terminations (Jan Kiszka) 

Now that we can properly restore the pc on watchpoint hits, there is no
more need for prematurely terminating TBs if watchpoints are present.
Remove all related bits.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5742 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2008-11-18 20:26:41 +00:00
parent 06d55cc19a
commit bfa50bc263
3 changed files with 0 additions and 16 deletions
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4
exec.c
View File

@ -1325,10 +1325,6 @@ int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
env->watchpoints = wp;
tlb_flush_page(env, addr);
/* FIXME: This flush is needed because of the hack to make memory ops
terminate the TB. It can be removed once the proper IO trap and
re-execute bits are in. */
tb_flush(env);
if (watchpoint)
*watchpoint = wp;

6
target-arm/translate.c
View File

@ -8729,12 +8729,6 @@ static inline void gen_intermediate_code_internal(CPUState *env,
gen_set_label(dc->condlabel);
dc->condjmp = 0;
}
/* Terminate the TB on memory ops if watchpoints are present. */
/* FIXME: This should be replacd by the deterministic execution
* IRQ raising bits. */
if (dc->is_mem && env->watchpoints)
break;
/* Translation stops when a conditional branch is enoutered.
* Otherwise the subsequent code could get translated several times.
* Also stop translation when a page boundary is reached. This

6
target-m68k/translate.c
View File

@ -3027,12 +3027,6 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb,
dc->insn_pc = dc->pc;
disas_m68k_insn(env, dc);
num_insns++;
/* Terminate the TB on memory ops if watchpoints are present. */
/* FIXME: This should be replaced by the deterministic execution
* IRQ raising bits. */
if (dc->is_mem && env->watchpoints)
break;
} while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
!env->singlestep_enabled &&
(pc_offset) < (TARGET_PAGE_SIZE - 32) &&