[PATCH 13/20] target/xtensa: Implement CPUClass::datapath_is_big_endian

[Philippe Mathieu-Daudé]

Implement Xtensa datapath_is_big_endian() helper via libisa.

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
Other accesses to xtensa_isa_internal fields don't
call cpu_synchronize_state(), and the libisa doesn't
provide a way to switch endianness from translation
code. Should we add a sync just in case?
---
 target/xtensa/cpu.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c
index 6f9039abaee..7bf792fd0f4 100644
--- a/target/xtensa/cpu.c
+++ b/target/xtensa/cpu.c
@@ -40,6 +40,13 @@
 #endif
 
 
+static bool xtensa_cpu_datapath_is_big_endian(CPUState *cs)
+{
+    CPUXtensaState *env = cpu_env(cs);
+
+    return xtensa_isa_is_big_endian(env->config->isa);
+}
+
 static void xtensa_cpu_set_pc(CPUState *cs, vaddr value)
 {
     XtensaCPU *cpu = XTENSA_CPU(cs);
@@ -256,6 +263,7 @@ static void xtensa_cpu_class_init(ObjectClass *oc, void 
*data)
                                        &xcc->parent_phases);
 
     cc->class_by_name = xtensa_cpu_class_by_name;
+    cc->datapath_is_big_endian = xtensa_cpu_datapath_is_big_endian;
     cc->has_work = xtensa_cpu_has_work;
     cc->mmu_index = xtensa_cpu_mmu_index;
     cc->dump_state = xtensa_cpu_dump_state;
-- 
2.45.2