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target/ppc: 405: External exception cleanup

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405 has no MSR_HV and EPR is BookE only so we can remove it all.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220118184448.852996-8-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Fabiano Rosas 2022-01-28 13:15:04 +01:00 committed by Cédric Le Goater
parent 2149e65180
commit 9026e99c89
1 changed files with 0 additions and 37 deletions
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37
target/ppc/excp_helper.c
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@ -472,44 +472,7 @@ static void powerpc_excp_40x(PowerPCCPU *cpu, int excp)
msr |= env->error_code;
break;
case POWERPC_EXCP_EXTERNAL: /* External input */
{
bool lpes0;
cs = CPU(cpu);
/*
* Exception targeting modifiers
*
* LPES0 is supported on POWER7/8/9
* LPES1 is not supported (old iSeries mode)
*
* On anything else, we behave as if LPES0 is 1
* (externals don't alter MSR:HV)
*/
#if defined(TARGET_PPC64)
if (excp_model == POWERPC_EXCP_POWER7 ||
excp_model == POWERPC_EXCP_POWER8 ||
excp_model == POWERPC_EXCP_POWER9 ||
excp_model == POWERPC_EXCP_POWER10) {
lpes0 = !!(env->spr[SPR_LPCR] & LPCR_LPES0);
} else
#endif /* defined(TARGET_PPC64) */
{
lpes0 = true;
}
if (!lpes0) {
new_msr |= (target_ulong)MSR_HVB;
new_msr |= env->msr & ((target_ulong)1 << MSR_RI);
srr0 = SPR_HSRR0;
srr1 = SPR_HSRR1;
}
if (env->mpic_proxy) {
/* IACK the IRQ on delivery */
env->spr[SPR_BOOKE_EPR] = ldl_phys(cs->as, env->mpic_iack);
}
break;
}
case POWERPC_EXCP_ALIGN: /* Alignment exception */
/* Get rS/rD and rA from faulting opcode */
/*