According to PnP specification, Appendix B, Option ROMs
that support DDIM (device driver initialization model) should
have their memory space writeable.
KVM deviates from us here, by removing the IO_MEM_ROM flag,
to allow for PCI option ROMs (they require DDIM). However,
there's absolutely no reason we can't do the same.
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
option_rom_offset = qemu_ram_alloc(0x20000);
oprom_area_size = 0;
- cpu_register_physical_memory(0xc0000, 0x20000,
- option_rom_offset | IO_MEM_ROM);
+ cpu_register_physical_memory(0xc0000, 0x20000, option_rom_offset);
if (using_vga) {
/* VGA BIOS load */