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cris: Avoid spurios hw_abort on recursive bus faults 

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Edgar E. Iglesias 2010-09-16 15:40:27 +02:00
parent 41557447d3
commit abdfd9500e
1 changed files with 7 additions and 1 deletions
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8
target-cris/helper.c
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@ -235,9 +235,15 @@ void do_interrupt(CPUState *env)
/* Apply the CRIS CCS shift. Clears U if set. */ /* Apply the CRIS CCS shift. Clears U if set. */
cris_shift_ccs(env); cris_shift_ccs(env);
/* Now that we are in kernel mode, load the handlers address. */ /* Now that we are in kernel mode, load the handlers address.
This load may not fault, real hw leaves that behaviour as
undefined. */
env->pc = ldl_code(env->pregs[PR_EBP] + ex_vec * 4); env->pc = ldl_code(env->pregs[PR_EBP] + ex_vec * 4);
/* Clear the excption_index to avoid spurios hw_aborts for recursive
bus faults. */
env->exception_index = -1;
D_LOG("%s isr=%x vec=%x ccs=%x pid=%d erp=%x\n", D_LOG("%s isr=%x vec=%x ccs=%x pid=%d erp=%x\n",
__func__, env->pc, ex_vec, __func__, env->pc, ex_vec,
env->pregs[PR_CCS], env->pregs[PR_CCS],