[PATCH 1/2] target/xtensa: Implement xtensa_isa_is_big_endian()

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Xtensa internal fields are opaque, only accessible by
the Xtensa libisa. Implement xtensa_isa_is_big_endian()
to get vCPU endianness. This should be implemented in
libisa, not QEMU, but I couldn't figure out where to
contribute this.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/hw/xtensa/xtensa-isa.h | 1 +
 target/xtensa/xtensa-isa.c     | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/include/hw/xtensa/xtensa-isa.h b/include/hw/xtensa/xtensa-isa.h
index a289531bdc8..1cb8e6ccb66 100644
--- a/include/hw/xtensa/xtensa-isa.h
+++ b/include/hw/xtensa/xtensa-isa.h
@@ -829,6 +829,7 @@ const char *xtensa_funcUnit_name(xtensa_isa isa, xtensa_funcUnit fun);
 
 int xtensa_funcUnit_num_copies(xtensa_isa isa, xtensa_funcUnit fun);
 
+bool xtensa_isa_is_big_endian(xtensa_isa isa);
 
 #ifdef __cplusplus
 }
diff --git a/target/xtensa/xtensa-isa.c b/target/xtensa/xtensa-isa.c
index 630b4f9da1b..36eb4bcf3d4 100644
--- a/target/xtensa/xtensa-isa.c
+++ b/target/xtensa/xtensa-isa.c
@@ -1741,3 +1741,10 @@ int xtensa_funcUnit_num_copies(xtensa_isa isa, xtensa_funcUnit fun)
     CHECK_FUNCUNIT(intisa, fun, XTENSA_UNDEFINED);
     return intisa->funcUnits[fun].num_copies;
 }
+
+bool xtensa_isa_is_big_endian(xtensa_isa isa)
+{
+    xtensa_isa_internal *intisa = (xtensa_isa_internal *)isa;
+
+    return intisa->is_big_endian;
+}
-- 
2.45.2