softmmu: Add qemu_init_arch_modules()

module_allow_arch() is the single target-specific call in the
whole vl.c file. Move the module initialization out to arch_init.c,
that way we'll be able to build vl.o once for all targets (the
next commit).

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-21-f4bug@amsat.org>

include/sysemu/arch_init.h

@@ -28,4 +28,6 @@ enum {
 
 extern const uint32_t arch_type;
 
+void qemu_init_arch_modules(void);
+
 #endif

softmmu/arch_init.c

@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  */
 #include "qemu/osdep.h"
+#include "qemu/module.h"
 #include "sysemu/arch_init.h"
 
 #ifdef TARGET_SPARC
@@ -39,3 +40,11 @@ int graphic_depth = 32;
 #endif
 
 const uint32_t arch_type = QEMU_ARCH;
+
+void qemu_init_arch_modules(void)
+{
+#ifdef CONFIG_MODULES
+    module_init_info(qemu_modinfo);
+    module_allow_arch(TARGET_NAME);
+#endif
+}

softmmu/vl.c

@@ -2815,10 +2815,7 @@ void qemu_init(int argc, char **argv, char **envp)
     error_init(argv[0]);
     qemu_init_exec_dir(argv[0]);
 
-#ifdef CONFIG_MODULES
-    module_init_info(qemu_modinfo);
-    module_allow_arch(TARGET_NAME);
-#endif
+    qemu_init_arch_modules();
 
     qemu_init_subsystems();