pc: move global memory map out of pc_init1() and into its callers

Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/pc_piix.c

@@ -68,7 +68,8 @@ static void ioapic_init(IsaIrqState *isa_irq_state)
 }
 
 /* PC hardware initialisation */
-static void pc_init1(ram_addr_t ram_size,
+static void pc_init1(MemoryRegion *system_memory,
+                     ram_addr_t ram_size,
                      const char *boot_device,
                      const char *kernel_filename,
                      const char *kernel_cmdline,
@@ -91,9 +92,6 @@ static void pc_init1(ram_addr_t ram_size,
     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
     BusState *idebus[MAX_IDE_BUS];
     ISADevice *rtc_state;
-    MemoryRegion *system_memory;
-
-    system_memory = get_system_memory();
 
     pc_cpus_init(cpu_model);
 
@@ -214,7 +212,8 @@ static void pc_init_pci(ram_addr_t ram_size,
                         const char *initrd_filename,
                         const char *cpu_model)
 {
-    pc_init1(ram_size, boot_device,
+    pc_init1(get_system_memory(),
+             ram_size, boot_device,
              kernel_filename, kernel_cmdline,
              initrd_filename, cpu_model, 1, 1);
 }
@@ -226,7 +225,8 @@ static void pc_init_pci_no_kvmclock(ram_addr_t ram_size,
                                     const char *initrd_filename,
                                     const char *cpu_model)
 {
-    pc_init1(ram_size, boot_device,
+    pc_init1(get_system_memory(),
+             ram_size, boot_device,
              kernel_filename, kernel_cmdline,
              initrd_filename, cpu_model, 1, 0);
 }
@@ -240,7 +240,8 @@ static void pc_init_isa(ram_addr_t ram_size,
 {
     if (cpu_model == NULL)
         cpu_model = "486";
-    pc_init1(ram_size, boot_device,
+    pc_init1(get_system_memory(),
+             ram_size, boot_device,
              kernel_filename, kernel_cmdline,
              initrd_filename, cpu_model, 0, 1);
 }