[PULL 09/23] spapr: Move nested KVM hypercalls under a TCG only config.

[Daniel Henrique Barboza <danielhb413@gmail.com>]

From: Fabiano Rosas <farosas@linux.ibm.com>

These are the spapr virtual hypervisor implementation of the nested
KVM API. They only make sense when running with TCG.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20220325221113.255834-3-farosas@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/ppc/spapr_hcall.c | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 9b24db5e44..d761a7d0c3 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -1473,7 +1473,7 @@ target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode,
     return H_FUNCTION;
 }
 
-/* TCG only */
+#ifdef CONFIG_TCG
 #define PRTS_MASK      0x1f
 
 static target_ulong h_set_ptbl(PowerPCCPU *cpu,
@@ -1800,18 +1800,35 @@ out_restore_l1:
     spapr_cpu->nested_host_state = NULL;
 }
 
-#ifdef CONFIG_TCG
+static void hypercall_register_nested(void)
+{
+    spapr_register_hypercall(KVMPPC_H_SET_PARTITION_TABLE, h_set_ptbl);
+    spapr_register_hypercall(KVMPPC_H_ENTER_NESTED, h_enter_nested);
+    spapr_register_hypercall(KVMPPC_H_TLB_INVALIDATE, h_tlb_invalidate);
+    spapr_register_hypercall(KVMPPC_H_COPY_TOFROM_GUEST, h_copy_tofrom_guest);
+}
+
 static void hypercall_register_softmmu(void)
 {
     /* DO NOTHING */
 }
 #else
+void spapr_exit_nested(PowerPCCPU *cpu, int excp)
+{
+    g_assert_not_reached();
+}
+
 static target_ulong h_softmmu(PowerPCCPU *cpu, SpaprMachineState *spapr,
                             target_ulong opcode, target_ulong *args)
 {
     g_assert_not_reached();
 }
 
+static void hypercall_register_nested(void)
+{
+    /* DO NOTHING */
+}
+
 static void hypercall_register_softmmu(void)
 {
     /* hcall-pft */
@@ -1881,10 +1898,7 @@ static void hypercall_register_types(void)
 
     spapr_register_hypercall(KVMPPC_H_UPDATE_DT, h_update_dt);
 
-    spapr_register_hypercall(KVMPPC_H_SET_PARTITION_TABLE, h_set_ptbl);
-    spapr_register_hypercall(KVMPPC_H_ENTER_NESTED, h_enter_nested);
-    spapr_register_hypercall(KVMPPC_H_TLB_INVALIDATE, h_tlb_invalidate);
-    spapr_register_hypercall(KVMPPC_H_COPY_TOFROM_GUEST, h_copy_tofrom_guest);
+    hypercall_register_nested();
 }
 
 type_init(hypercall_register_types)
-- 
2.35.1