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authorThomas Heijligen <thomas.heijligen@secunet.com>2019-01-10 19:45:47 +0100
committerNico Huber <nico.h@gmx.de>2019-02-05 11:03:08 +0000
commit8d010db58e5cd9d26ff7c5c7d4dd93a6df0fcbb7 (patch)
treecb7187dfee9227a5cdc91da8545c708e52d7e5df /src/mainboard/emulation/qemu-i440fx
parent0065b6974fb311a1fa3448253f63e7d4cec0250e (diff)
downloadcoreboot-8d010db58e5cd9d26ff7c5c7d4dd93a6df0fcbb7.tar.xz
mb/emulation/qemu-i440fx: use e820 in romstage
Use memory map from fw_cfg e820 map to find cbmem_top in romstage to avoid conflicts with CMOS option table. Keep qemu_gwt_memory_size() as fallback. Change-Id: I6465085020125fc790257f09eb157030c6ceabcb Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com> Reviewed-on: https://review.coreboot.org/c/30850 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/mainboard/emulation/qemu-i440fx')
-rw-r--r--src/mainboard/emulation/qemu-i440fx/Makefile.inc1
-rw-r--r--src/mainboard/emulation/qemu-i440fx/memory.c9
2 files changed, 9 insertions, 1 deletions
diff --git a/src/mainboard/emulation/qemu-i440fx/Makefile.inc b/src/mainboard/emulation/qemu-i440fx/Makefile.inc
index 9e2880a6a0..8c19afc128 100644
--- a/src/mainboard/emulation/qemu-i440fx/Makefile.inc
+++ b/src/mainboard/emulation/qemu-i440fx/Makefile.inc
@@ -1,4 +1,5 @@
ramstage-y += northbridge.c
ramstage-y += fw_cfg.c
+romstage-y += fw_cfg.c
romstage-y += memory.c
ramstage-y += memory.c
diff --git a/src/mainboard/emulation/qemu-i440fx/memory.c b/src/mainboard/emulation/qemu-i440fx/memory.c
index dea96f275d..aa1ceba410 100644
--- a/src/mainboard/emulation/qemu-i440fx/memory.c
+++ b/src/mainboard/emulation/qemu-i440fx/memory.c
@@ -16,6 +16,7 @@
#include <cbmem.h>
#include <arch/io.h>
#include "memory.h"
+#include "fw_cfg.h"
#define CMOS_ADDR_PORT 0x70
#define CMOS_DATA_PORT 0x71
@@ -52,5 +53,11 @@ unsigned long qemu_get_memory_size(void)
void *cbmem_top(void)
{
- return (void *) (qemu_get_memory_size() * 1024);
+ uintptr_t top = 0;
+
+ top = fw_cfg_tolud();
+ if (!top)
+ top = (uintptr_t)qemu_get_memory_size() * 1024;
+
+ return (void *)top;
}