Commit d70e58958d for qemu.org

commit d70e58958da3165bb35d33a69c9d1937674dd6ce
Author: Philippe Mathieu-Daudé <philmd@linaro.org>
Date:   Fri Sep 27 09:05:33 2024 +0200

    target/mips: Expose MIPSCPU::is_big_endian property

    Add the "big-endian" property and set the CP0C0_BE bit in CP0_Config0.

    Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
    Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
    Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
    Message-Id: <20241010215015.44326-15-philmd@linaro.org>

diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 89655b1900..04bf4b11db 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -200,10 +200,8 @@ static void mips_cpu_reset_hold(Object *obj, ResetType type)

     /* Reset registers to their default values */
     env->CP0_PRid = env->cpu_model->CP0_PRid;
-    env->CP0_Config0 = env->cpu_model->CP0_Config0;
-#if TARGET_BIG_ENDIAN
-    env->CP0_Config0 |= (1 << CP0C0_BE);
-#endif
+    env->CP0_Config0 = deposit32(env->cpu_model->CP0_Config0,
+                                 CP0C0_BE, 1, cpu->is_big_endian);
     env->CP0_Config1 = env->cpu_model->CP0_Config1;
     env->CP0_Config2 = env->cpu_model->CP0_Config2;
     env->CP0_Config3 = env->cpu_model->CP0_Config3;
@@ -541,6 +539,11 @@ static const struct SysemuCPUOps mips_sysemu_ops = {
 };
 #endif

+static Property mips_cpu_properties[] = {
+    DEFINE_PROP_BOOL("big-endian", MIPSCPU, is_big_endian, TARGET_BIG_ENDIAN),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 #ifdef CONFIG_TCG
 #include "hw/core/tcg-cpu-ops.h"
 /*
@@ -571,6 +574,7 @@ static void mips_cpu_class_init(ObjectClass *c, void *data)
     DeviceClass *dc = DEVICE_CLASS(c);
     ResettableClass *rc = RESETTABLE_CLASS(c);

+    device_class_set_props(dc, mips_cpu_properties);
     device_class_set_parent_realize(dc, mips_cpu_realizefn,
                                     &mcc->parent_realize);
     resettable_class_set_parent_phases(rc, NULL, mips_cpu_reset_hold, NULL,
diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 3e906a175a..070e11fe0d 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -1209,6 +1209,9 @@ struct ArchCPU {

     Clock *clock;
     Clock *count_div; /* Divider for CP0_Count clock */
+
+    /* Properties */
+    bool is_big_endian;
 };

 /**