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qemu-patch-raspberry4
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target/ppc: 405: System call exception cleanup 

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Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220118184448.852996-9-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
staging
Fabiano Rosas 2022-01-28 13:15:04 +01:00 committed by Cédric Le Goater
parent 9026e99c89
commit 8428cdb245
1 changed files with 2 additions and 19 deletions
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21
target/ppc/excp_helper.c
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@ -398,7 +398,7 @@ static void powerpc_excp_40x(PowerPCCPU *cpu, int excp)
CPUPPCState *env = &cpu->env;
int excp_model = env->excp_model;
target_ulong msr, new_msr, vector;
int srr0, srr1, lev = -1;
int srr0, srr1;
if (excp <= POWERPC_EXCP_NONE || excp >= POWERPC_EXCP_NB) {
cpu_abort(cs, "Invalid PowerPC exception %d. Aborting\n", excp);
@ -521,30 +521,13 @@ static void powerpc_excp_40x(PowerPCCPU *cpu, int excp)
}
break;
case POWERPC_EXCP_SYSCALL: /* System call exception */
lev = env->error_code;
if ((lev == 1) && cpu->vhyp) {
dump_hcall(env);
} else {
dump_syscall(env);
}
dump_syscall(env);
/*
* We need to correct the NIP which in this case is supposed
* to point to the next instruction
*/
env->nip += 4;
/* "PAPR mode" built-in hypercall emulation */
if ((lev == 1) && cpu->vhyp) {
PPCVirtualHypervisorClass *vhc =
PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp);
vhc->hypercall(cpu->vhyp, cpu);
return;
}
if (lev == 1) {
new_msr |= (target_ulong)MSR_HVB;
}
break;
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
trace_ppc_excp_print("FIT");