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Remove premature memop TB terminations (Jan Kiszka)

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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) &&