[PULL 01/48] hw/ppc/spapr.c: Extract MMU mode error reporting into a function

[David Gibson <david@gibson.dropbear.id.au>]

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

A following patch will make use of it.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20210505001130.3999968-2-farosas@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/spapr.c         | 16 ++++++++++++++++
 hw/ppc/spapr_hcall.c   | 14 ++------------
 include/hw/ppc/spapr.h |  1 +
 3 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 8f40319aee..3e51560d57 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1556,6 +1556,22 @@ void spapr_setup_hpt(SpaprMachineState *spapr)
     }
 }
 
+void spapr_check_mmu_mode(bool guest_radix)
+{
+    if (guest_radix) {
+        if (kvm_enabled() && !kvmppc_has_cap_mmu_radix()) {
+            error_report("Guest requested unavailable MMU mode (radix).");
+            exit(EXIT_FAILURE);
+        }
+    } else {
+        if (kvm_enabled() && kvmppc_has_cap_mmu_radix()
+            && !kvmppc_has_cap_mmu_hash_v3()) {
+            error_report("Guest requested unavailable MMU mode (hash).");
+            exit(EXIT_FAILURE);
+        }
+    }
+}
+
 static void spapr_machine_reset(MachineState *machine)
 {
     SpaprMachineState *spapr = SPAPR_MACHINE(machine);
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 16c719c3de..186b7666cc 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -1760,18 +1760,8 @@ target_ulong do_client_architecture_support(PowerPCCPU *cpu,
     spapr_ovec_intersect(spapr->ov5_cas, spapr->ov5, ov5_guest);
     spapr_ovec_cleanup(ov5_guest);
 
-    if (guest_radix) {
-        if (kvm_enabled() && !kvmppc_has_cap_mmu_radix()) {
-            error_report("Guest requested unavailable MMU mode (radix).");
-            exit(EXIT_FAILURE);
-        }
-    } else {
-        if (kvm_enabled() && kvmppc_has_cap_mmu_radix()
-            && !kvmppc_has_cap_mmu_hash_v3()) {
-            error_report("Guest requested unavailable MMU mode (hash).");
-            exit(EXIT_FAILURE);
-        }
-    }
+    spapr_check_mmu_mode(guest_radix);
+
     spapr->cas_pre_isa3_guest = !spapr_ovec_test(ov1_guest, OV1_PPC_3_00);
     spapr_ovec_cleanup(ov1_guest);
 
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index 7f40a158f4..92ca246509 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -821,6 +821,7 @@ void spapr_dt_events(SpaprMachineState *sm, void *fdt);
 void close_htab_fd(SpaprMachineState *spapr);
 void spapr_setup_hpt(SpaprMachineState *spapr);
 void spapr_free_hpt(SpaprMachineState *spapr);
+void spapr_check_mmu_mode(bool guest_radix);
 SpaprTceTable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn);
 void spapr_tce_table_enable(SpaprTceTable *tcet,
                             uint32_t page_shift, uint64_t bus_offset,
-- 
2.31.1