[Xen-devel] [PATCH V13 05/17] pc_memory_init: Move memory calculation to the caller.

[<anthony.perard@xxxxxxxxxx>]

From: Anthony PERARD <anthony.perard@xxxxxxxxxx>

This patch moves above_4g_mem_size and below_4g_mem_size calculation in
the caller of pc_memory_init (pc_init1). And the prototype of
pc_memory_init is changed because there is no need anymore to have
variable pointer.

Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 hw/pc.c      |   14 ++------------
 hw/pc.h      |    4 ++--
 hw/pc_piix.c |   11 +++++++++--
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/hw/pc.c b/hw/pc.c
index 6939c04..18b96cc 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -961,25 +961,15 @@ void pc_memory_init(ram_addr_t ram_size,
                     const char *kernel_filename,
                     const char *kernel_cmdline,
                     const char *initrd_filename,
-                    ram_addr_t *below_4g_mem_size_p,
-                    ram_addr_t *above_4g_mem_size_p)
+                    ram_addr_t below_4g_mem_size,
+                    ram_addr_t above_4g_mem_size)
 {
     char *filename;
     int ret, linux_boot, i;
     ram_addr_t ram_addr, bios_offset, option_rom_offset;
-    ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
     int bios_size, isa_bios_size;
     void *fw_cfg;
 
-    if (ram_size >= 0xe0000000 ) {
-        above_4g_mem_size = ram_size - 0xe0000000;
-        below_4g_mem_size = 0xe0000000;
-    } else {
-        below_4g_mem_size = ram_size;
-    }
-    *above_4g_mem_size_p = above_4g_mem_size;
-    *below_4g_mem_size_p = below_4g_mem_size;
-
     linux_boot = (kernel_filename != NULL);
 
     /* allocate RAM */
diff --git a/hw/pc.h b/hw/pc.h
index feb8a7a..35bb890 100644
--- a/hw/pc.h
+++ b/hw/pc.h
@@ -133,8 +133,8 @@ void pc_memory_init(ram_addr_t ram_size,
                     const char *kernel_filename,
                     const char *kernel_cmdline,
                     const char *initrd_filename,
-                    ram_addr_t *below_4g_mem_size_p,
-                    ram_addr_t *above_4g_mem_size_p);
+                    ram_addr_t below_4g_mem_size,
+                    ram_addr_t above_4g_mem_size);
 qemu_irq *pc_allocate_cpu_irq(void);
 void pc_vga_init(PCIBus *pci_bus);
 void pc_basic_device_init(qemu_irq *isa_irq,
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index a85214b..e487c38 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_piix.c
@@ -72,7 +72,7 @@ static void pc_init1(ram_addr_t ram_size,
                      int kvmclock_enabled)
 {
     int i;
-    ram_addr_t below_4g_mem_size, above_4g_mem_size;
+    ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
     PCIBus *pci_bus;
     PCII440FXState *i440fx_state;
     int piix3_devfn = -1;
@@ -92,9 +92,16 @@ static void pc_init1(ram_addr_t ram_size,
         kvmclock_create();
     }
 
+    if (ram_size >= 0xe0000000 ) {
+        above_4g_mem_size = ram_size - 0xe0000000;
+        below_4g_mem_size = 0xe0000000;
+    } else {
+        below_4g_mem_size = ram_size;
+    }
+
     /* allocate ram and load rom/bios */
     pc_memory_init(ram_size, kernel_filename, kernel_cmdline, initrd_filename,
-                   &below_4g_mem_size, &above_4g_mem_size);
+                   below_4g_mem_size, above_4g_mem_size);
 
     cpu_irq = pc_allocate_cpu_irq();
     i8259 = i8259_init(cpu_irq[0]);
-- 
1.7.2.3


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