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authorStefan Reinauer <reinauer@chromium.org>2012-04-02 13:24:04 -0700
committerPeter Stuge <peter@stuge.se>2012-04-04 04:49:09 +0200
commit3aa067f595115a62afdfc9acc33f08e9c96da850 (patch)
tree1dad56c263c7f84d59440ec32654de76b78d6f2b /src/console
parent6efbebdb58357b8d1aad43f51c91defd452296f6 (diff)
downloadcoreboot-3aa067f595115a62afdfc9acc33f08e9c96da850.tar.xz
Add support to run SMM handler in TSEG instead of ASEG
Traditionally coreboot's SMM handler runs in ASEG (0xa0000), "behind" the graphics memory. This approach has two issues: - It limits the possible size of the SMM handler (and the number of CPUs supported in a system) - It's not considered a supported path anymore in newer CPUs. Change-Id: I9f2877e46873ab2ea8f1157ead4bc644a50be19e Signed-off-by: Duncan Laurie <dlaurie@google.com> Acked-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/842 Reviewed-by: Peter Stuge <peter@stuge.se> Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/console')
-rw-r--r--src/console/vtxprintf.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/console/vtxprintf.c b/src/console/vtxprintf.c
index 405302311d..a370e5f21d 100644
--- a/src/console/vtxprintf.c
+++ b/src/console/vtxprintf.c
@@ -6,6 +6,7 @@
#include <string.h>
#include <div64.h>
+#include <console/console.h>
#include <console/vtxprintf.h>
/* haha, don't need ctype.c */
@@ -115,6 +116,11 @@ int vtxprintf(void (*tx_byte)(unsigned char byte), const char *fmt, va_list args
int count;
+#if defined(__SMM__) && CONFIG_SMM_TSEG
+ /* Fix pointer in TSEG */
+ tx_byte = console_tx_byte;
+#endif
+
for (count=0; *fmt ; ++fmt) {
if (*fmt != '%') {
tx_byte(*fmt), count++;