hw/microblaze: Propagate CPU endianness to microblaze_load_kernel()

Pass vCPU endianness as argument so we can load kernels
with different endianness (different from the qemu-system-binary
builtin one).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241107012223.94337-3-philmd@linaro.org>

hw/microblaze/boot.c

@@ -114,8 +114,8 @@ static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
     return addr - 0x30000000LL;
 }
 
-void microblaze_load_kernel(MicroBlazeCPU *cpu, hwaddr ddr_base,
-                            uint32_t ramsize,
+void microblaze_load_kernel(MicroBlazeCPU *cpu, bool is_little_endian,
+                            hwaddr ddr_base, uint32_t ramsize,
                             const char *initrd_filename,
                             const char *dtb_filename,
                             void (*machine_cpu_reset)(MicroBlazeCPU *))
@@ -144,13 +144,13 @@ void microblaze_load_kernel(MicroBlazeCPU *cpu, hwaddr ddr_base,
         /* Boots a kernel elf binary.  */
         kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
                                &entry, NULL, &high, NULL,
-                               TARGET_BIG_ENDIAN, EM_MICROBLAZE, 0, 0);
+                               !is_little_endian, EM_MICROBLAZE, 0, 0);
         base32 = entry;
         if (base32 == 0xc0000000) {
             kernel_size = load_elf(kernel_filename, NULL,
                                    translate_kernel_address, NULL,
                                    &entry, NULL, NULL, NULL,
-                                   TARGET_BIG_ENDIAN, EM_MICROBLAZE, 0, 0);
+                                   !is_little_endian, EM_MICROBLAZE, 0, 0);
         }
         /* Always boot into physical ram.  */
         boot_info.bootstrap_pc = (uint32_t)entry;

hw/microblaze/boot.h

@@ -2,8 +2,8 @@
 #define MICROBLAZE_BOOT_H
 
 
-void microblaze_load_kernel(MicroBlazeCPU *cpu, hwaddr ddr_base,
-                            uint32_t ramsize,
+void microblaze_load_kernel(MicroBlazeCPU *cpu, bool is_little_endian,
+                            hwaddr ddr_base, uint32_t ramsize,
                             const char *initrd_filename,
                             const char *dtb_filename,
                             void (*machine_cpu_reset)(MicroBlazeCPU *));

hw/microblaze/petalogix_ml605_mmu.c

@@ -204,7 +204,7 @@ petalogix_ml605_init(MachineState *machine)
     cpu->cfg.pvr_regs[5] = 0xc56be000;
     cpu->cfg.pvr_regs[10] = 0x0e000000; /* virtex 6 */
 
-    microblaze_load_kernel(cpu, MEMORY_BASEADDR, ram_size,
+    microblaze_load_kernel(cpu, true, MEMORY_BASEADDR, ram_size,
                            machine->initrd_filename,
                            BINARY_DEVICE_TREE_FILE,
                            NULL);

hw/microblaze/petalogix_s3adsp1800_mmu.c

@@ -129,7 +129,7 @@ petalogix_s3adsp1800_init(MachineState *machine)
 
     create_unimplemented_device("xps_gpio", GPIO_BASEADDR, 0x10000);
 
-    microblaze_load_kernel(cpu, ddr_base, ram_size,
+    microblaze_load_kernel(cpu, !TARGET_BIG_ENDIAN, ddr_base, ram_size,
                            machine->initrd_filename,
                            BINARY_DEVICE_TREE_FILE,
                            NULL);

hw/microblaze/xlnx-zynqmp-pmu.c

@@ -172,7 +172,7 @@ static void xlnx_zynqmp_pmu_init(MachineState *machine)
     qdev_realize(DEVICE(pmu), NULL, &error_fatal);
 
     /* Load the kernel */
-    microblaze_load_kernel(&pmu->cpu, XLNX_ZYNQMP_PMU_RAM_ADDR,
+    microblaze_load_kernel(&pmu->cpu, true, XLNX_ZYNQMP_PMU_RAM_ADDR,
                            machine->ram_size,
                            machine->initrd_filename,
                            machine->dtb,