[PATCH v2 13/14] spapr: nested: keep nested-hv exit code restricted to its API.

[Harsh Prateek Bora <harshpb@linux.ibm.com>]

spapr_exit_nested gets triggered on a nested guest exit and currently
being used only for nested-hv API. Isolating code flows based on API
helps extending it to be used with nested PAPR API as well.

Signed-off-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
---
 hw/ppc/spapr_nested.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/hw/ppc/spapr_nested.c b/hw/ppc/spapr_nested.c
index 607fb7ead2..e2d0cb5559 100644
--- a/hw/ppc/spapr_nested.c
+++ b/hw/ppc/spapr_nested.c
@@ -325,7 +325,7 @@ static target_ulong h_enter_nested(PowerPCCPU *cpu,
     return env->gpr[3];
 }
 
-void spapr_exit_nested(PowerPCCPU *cpu, int excp)
+static void spapr_exit_nested_hv(PowerPCCPU *cpu, int excp)
 {
     CPUPPCState *env = &cpu->env;
     SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu);
@@ -337,8 +337,6 @@ void spapr_exit_nested(PowerPCCPU *cpu, int excp)
     struct kvmppc_pt_regs *regs;
     hwaddr len;
 
-    assert(spapr_cpu->in_nested);
-
     nested_save_state(&l2_state, cpu);
     hsrr0 = env->spr[SPR_HSRR0];
     hsrr1 = env->spr[SPR_HSRR1];
@@ -428,6 +426,17 @@ void spapr_exit_nested(PowerPCCPU *cpu, int excp)
     address_space_unmap(CPU(cpu)->as, regs, len, len, true);
 }
 
+void spapr_exit_nested(PowerPCCPU *cpu, int excp)
+{
+    SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+    SpaprCpuState *spapr_cpu = spapr_cpu_state(cpu);
+
+    assert(spapr_cpu->in_nested);
+    if (spapr->nested.api == NESTED_API_KVM_HV) {
+        spapr_exit_nested_hv(cpu, excp);
+    }
+}
+
 SpaprMachineStateNestedGuest *spapr_get_nested_guest(SpaprMachineState *spapr,
                                                      target_ulong guestid)
 {
-- 
2.39.3