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linux-user/microblaze: Handle privileged exception 

Follow what kernel's full_exception() is doing.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230214140829.45392-4-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
master
Ilya Leoshkevich 2023-02-14 15:08:28 +01:00 committed by Richard Henderson
parent df8a688032
commit d7d5601c78
1 changed files with 8 additions and 2 deletions
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10
linux-user/microblaze/cpu_loop.c
View File

@ -25,8 +25,8 @@
void cpu_loop(CPUMBState *env)
{
int trapnr, ret, si_code, sig;
CPUState *cs = env_cpu(env);
int trapnr, ret, si_code;
while (1) {
cpu_exec_start(cs);
@ -76,6 +76,7 @@ void cpu_loop(CPUMBState *env)
env->iflags &= ~(IMM_FLAG | D_FLAG);
switch (env->esr & 31) {
case ESR_EC_DIVZERO:
sig = TARGET_SIGFPE;
si_code = TARGET_FPE_INTDIV;
break;
case ESR_EC_FPU:
@ -84,6 +85,7 @@ void cpu_loop(CPUMBState *env)
* if there's no recognized bit set. Possibly this
* implies that si_code is 0, but follow the structure.
*/
sig = TARGET_SIGFPE;
si_code = env->fsr;
if (si_code & FSR_IO) {
si_code = TARGET_FPE_FLTINV;
@ -97,13 +99,17 @@ void cpu_loop(CPUMBState *env)
si_code = TARGET_FPE_FLTRES;
}
break;
case ESR_EC_PRIVINSN:
sig = SIGILL;
si_code = ILL_PRVOPC;
break;
default:
fprintf(stderr, "Unhandled hw-exception: 0x%x\n",
env->esr & ESR_EC_MASK);
cpu_dump_state(cs, stderr, 0);
exit(EXIT_FAILURE);
}
force_sig_fault(TARGET_SIGFPE, si_code, env->pc);
force_sig_fault(sig, si_code, env->pc);
break;
case EXCP_DEBUG: