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target/ppc: 74xx: System Reset interrupt cleanup

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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 */