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target/ppc: 74xx: System Reset interrupt cleanup 

The whole power saving states logic seems to be dependent on HV mode,
which don't exist for 74xx so I'm removing it all and leaving the
abort message.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-8-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Fabiano Rosas 2022-01-28 13:15:07 +01:00 committed by Cédric Le Goater
parent bca2c6d9e0
commit 91a51fecef
1 changed files with 2 additions and 16 deletions
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18
target/ppc/excp_helper.c
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@ -703,23 +703,9 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
case POWERPC_EXCP_DECR: /* Decrementer exception */
break;
case POWERPC_EXCP_RESET: /* System reset exception */
/* A power-saving exception sets ME, otherwise it is unchanged */
if (msr_pow) {
/* indicate that we resumed from power save mode */
msr |= 0x10000;
new_msr |= ((target_ulong)1 << MSR_ME);
}
if (env->msr_mask & MSR_HVB) {
/*
* ISA specifies HV, but can be delivered to guest with HV
* clear (e.g., see FWNMI in PAPR, NMI injection in QEMU).
*/
new_msr |= (target_ulong)MSR_HVB;
} else {
if (msr_pow) {
cpu_abort(cs, "Trying to deliver power-saving system reset "
"exception %d with no HV support\n", excp);
}
cpu_abort(cs, "Trying to deliver power-saving system reset "
"exception %d with no HV support\n", excp);
}
break;
case POWERPC_EXCP_TRACE: /* Trace exception */