[SeaBIOS] [PATCH] README: document which config options to use

[Michael S. Tsirkin]

In the interim of moving ACPI tables out of
seabios, developers should get the config from
QEMU tree to keep things in sync.

Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
 README | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README b/README
index a87a0ad..380fc80 100644
--- a/README
+++ b/README
@@ -4,6 +4,12 @@ compiled using standard gnu tools (eg, gas and gcc).
 To build, one should be able to run "make" in the main directory.  The
 resulting file "out/bios.bin" contains the processed bios image.
 
+QEMU might only need a part of the BIOS binary, and different QEMU versions
+might need different seabios configurations to work well.  To build
+a bios for qemu, one needs to copy the config file from qemu source tree:
+	cp roms/config.seabios seabios/.config
+and then run make with this configuration:
+	make -C seabios olddefconfig
 
 Testing of images:
 
-- 
MST