[PATCH v2 6/8] target/ppc: allow ppc_cpu_do_system_reset to take an alternate vector

[Nicholas Piggin <npiggin@gmail.com>]

Provide for an alternate delivery location, -1 defaults to the
architected address.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 hw/ppc/spapr.c           | 2 +-
 target/ppc/cpu.h         | 2 +-
 target/ppc/excp_helper.c | 5 ++++-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 5f93c49706..25221d843c 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -3400,7 +3400,7 @@ static void spapr_machine_finalizefn(Object *obj)
 void spapr_do_system_reset_on_cpu(CPUState *cs, run_on_cpu_data arg)
 {
     cpu_synchronize_state(cs);
-    ppc_cpu_do_system_reset(cs);
+    ppc_cpu_do_system_reset(cs, -1);
 }
 
 static void spapr_nmi(NMIState *n, int cpu_index, Error **errp)
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 3953680534..f8c7d6f19c 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1220,7 +1220,7 @@ int ppc64_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs,
 int ppc32_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs,
                                int cpuid, void *opaque);
 #ifndef CONFIG_USER_ONLY
-void ppc_cpu_do_system_reset(CPUState *cs);
+void ppc_cpu_do_system_reset(CPUState *cs, target_ulong vector);
 void ppc_cpu_do_fwnmi_machine_check(CPUState *cs, target_ulong vector);
 extern const VMStateDescription vmstate_ppc_cpu;
 #endif
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 7f2b5899d3..08bc885ca6 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -961,12 +961,15 @@ static void ppc_hw_interrupt(CPUPPCState *env)
     }
 }
 
-void ppc_cpu_do_system_reset(CPUState *cs)
+void ppc_cpu_do_system_reset(CPUState *cs, target_ulong vector)
 {
     PowerPCCPU *cpu = POWERPC_CPU(cs);
     CPUPPCState *env = &cpu->env;
 
     powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_RESET);
+    if (vector != -1) {
+        env->nip = vector;
+    }
 }
 
 void ppc_cpu_do_fwnmi_machine_check(CPUState *cs, target_ulong vector)
-- 
2.23.0