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, 5 insertions, 6 deletions

diff --git a/hw/xen_machine_pv.c b/hw/xen_machine_pv.c
index 4b72aa7557..426470351e 100644
--- a/hw/xen_machine_pv.c
+++ b/hw/xen_machine_pv.c
@@ -29,13 +29,12 @@
 #include "xen_domainbuild.h"
 #include "blockdev.h"
 
-static void xen_init_pv(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 xen_init_pv(QEMUMachineInitArgs *args)
 {
+    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;
     X86CPU *cpu;
     CPUX86State *env;
     DriveInfo *dinfo;