SeaBIOS needs to write to the f-segment. So it needs to have some way to set
that from read-only to read-write, write in it and when it's done set it to
read-only again.
On PCI we have a mechanism for that. The ISA machine does not though. To stay
regression free and happily enable users to continue using the -M isapc machine
let's just map it as RAM. The BIOS on PCI will set it to r/o later either way.
Signed-off-by: Alexander Graf <ag...@suse.de>
---
v1 -> v2:
- always map r/w
---
hw/pc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/pc.c b/hw/pc.c
index 8c1b7ea..b5dabdd 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1075,7 +1075,7 @@ static void pc_init1(ram_addr_t ram_size,
isa_bios_size = 128 * 1024;
cpu_register_physical_memory(0x100000 - isa_bios_size,
isa_bios_size,
- (bios_offset + bios_size - isa_bios_size) |
IO_MEM_ROM);
+ (bios_offset + bios_size - isa_bios_size));
--
1.6.0.2
