create struct for machine initialization arguments

This should help us to:
- More easily add or remove machine initialization arguments without
  having to change every single machine init function;
- More easily make mechanical changes involving the machine init
  functions in the future;
- Let machine initialization forward the init arguments to other
  functions more easily.

This change was half-mechanical process: first the struct was added with
the local ram_size, boot_device, kernel_*, initrd_*, and cpu_model local
variable initialization to all functions. Then the compiler helped me
locate the local variables that are unused, so they could be removed.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/hw/xtensa_sim.c b/hw/xtensa_sim.c
index 831460b7c4..2e846d8aa6 100644
--- a/hw/xtensa_sim.c
+++ b/hw/xtensa_sim.c
@@ -96,11 +96,14 @@ static void sim_init(ram_addr_t ram_size,
     }
 }
 
-static void xtensa_sim_init(ram_addr_t ram_size,
-                     const char *boot_device,
-                     const char *kernel_filename, const char *kernel_cmdline,
-                     const char *initrd_filename, const char *cpu_model)
+static void xtensa_sim_init(QEMUMachineInitArgs *args)
 {
+    ram_addr_t ram_size = args->ram_size;
+    const char *cpu_model = args->cpu_model;
+    const char *kernel_filename = args->kernel_filename;
+    const char *kernel_cmdline = args->kernel_cmdline;
+    const char *initrd_filename = args->initrd_filename;
+    const char *boot_device = args->boot_device;
     if (!cpu_model) {
         cpu_model = XTENSA_DEFAULT_CPU_MODEL;
     }