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authorAvi Kivity <avi@redhat.com>2010-02-24 18:11:19 -0300
committerMarcelo Tosatti <mtosatti@redhat.com>2010-03-04 00:28:41 -0300
commit60e4c6317b8773d987729401aeca9d8c6b61b05f (patch)
tree910fd8cd4c4837775ce1c8be46d24b1c5f6775ad
parent55b1e61f640bb2cf3bed0b4cc6d4ba1326c625d9 (diff)
downloadfocaccia-qemu-60e4c6317b8773d987729401aeca9d8c6b61b05f.tar.gz
focaccia-qemu-60e4c6317b8773d987729401aeca9d8c6b61b05f.zip
Allocate memory below 4GB as one chunk
Instead of allocating a separate chunk for the first 640KB and another
for 1MB+, allocate one large chunk.  This plays well in terms of alignment
and size with large pages.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
-rw-r--r--hw/pc.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/hw/pc.c b/hw/pc.c
index 4f6a5228fd..bdc297f717 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -833,18 +833,11 @@ static void pc_init1(ram_addr_t ram_size,
     vmport_init();
 
     /* allocate RAM */
-    ram_addr = qemu_ram_alloc(0xa0000);
+    ram_addr = qemu_ram_alloc(below_4g_mem_size);
     cpu_register_physical_memory(0, 0xa0000, ram_addr);
-
-    /* Allocate, even though we won't register, so we don't break the
-     * phys_ram_base + PA assumption. This range includes vga (0xa0000 - 0xc0000),
-     * and some bios areas, which will be registered later
-     */
-    ram_addr = qemu_ram_alloc(0x100000 - 0xa0000);
-    ram_addr = qemu_ram_alloc(below_4g_mem_size - 0x100000);
     cpu_register_physical_memory(0x100000,
                  below_4g_mem_size - 0x100000,
-                 ram_addr);
+                 ram_addr + 0x100000);
 
     /* above 4giga memory allocation */
     if (above_4g_mem_size > 0) {