gwj / at91sam9263 · Commits

Commit 82b36dc39890f1ba6b7017b8d2e912503cef6cf9

Authored by aliguori
1 parent 434929bf

Right now, kvm keeps the memory allocation split, so we can 

handle different areas in different ways. This schema works with qemu
too, so it appears to be the common ground.

This patch proposes using this common ground for everyone, by spliting
raw qemu.

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5228 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 16 additions and 4 deletions
... ... @@ -777,16 +777,28 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size,
777 777 vmport_init();
778 778  
779 779 /* allocate RAM */
780   - ram_addr = qemu_ram_alloc(ram_size);
781   - cpu_register_physical_memory(0, below_4g_mem_size, ram_addr);
  780 + ram_addr = qemu_ram_alloc(0xa0000);
  781 + cpu_register_physical_memory(0, 0xa0000, ram_addr);
  782 +
  783 + /* Allocate, even though we won't register, so we don't break the
  784 + * phys_ram_base + PA assumption. This range includes vga (0xa0000 - 0xc0000),
  785 + * and some bios areas, which will be registered later
  786 + */
  787 + ram_addr = qemu_ram_alloc(0x100000 - 0xa0000);
  788 + ram_addr = qemu_ram_alloc(below_4g_mem_size - 0x100000);
  789 + cpu_register_physical_memory(0x100000,
  790 + below_4g_mem_size - 0x100000,
  791 + ram_addr);
782 792  
783 793 /* above 4giga memory allocation */
784 794 if (above_4g_mem_size > 0) {
785   - cpu_register_physical_memory((target_phys_addr_t) 0x100000000ULL,
  795 + ram_addr = qemu_ram_alloc(above_4g_mem_size);
  796 + cpu_register_physical_memory(0x100000000ULL,
786 797 above_4g_mem_size,
787   - ram_addr + below_4g_mem_size);
  798 + ram_addr);
788 799 }
789 800  
  801 +
790 802 /* allocate VGA RAM */
791 803 vga_ram_addr = qemu_ram_alloc(vga_ram_size);
792 804  
... ...