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authorSven Schnelle <svens@stackframe.org>2011-06-14 20:55:54 +0200
committerSven Schnelle <svens@stackframe.org>2011-06-15 23:11:44 +0200
commitbfe8e5186ea9916634d31182ec0437f6175e7724 (patch)
treec47d6e948425e4bbe0d9c38cc2a1eb1a954070a9 /src/cpu/x86
parentb629d14becd78c634ad412df726d964ed5d51214 (diff)
SMM: don't overwrite SMM memory on resume
Overwriting the SMM Area on resume leaves us with all variables cleared out, i.e., the GNVS pointer is no longer available, which makes SMIF function calls impossible. Change-Id: I08ab4ffd41df0922d63c017822de1f89a3ff254d Signed-off-by: Sven Schnelle <svens@stackframe.org> Reviewed-on: http://review.coreboot.org/34 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/cpu/x86')
-rw-r--r--src/cpu/x86/smm/smihandler.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cpu/x86/smm/smihandler.c b/src/cpu/x86/smm/smihandler.c
index bdaedf8dbc..d44a3eae1b 100644
--- a/src/cpu/x86/smm/smihandler.c
+++ b/src/cpu/x86/smm/smihandler.c
@@ -46,7 +46,7 @@ static int smi_obtain_lock(void)
return (ret == SMI_UNLOCKED);
}
-static void smi_release_lock(void)
+void smi_release_lock(void)
{
asm volatile (
"movb %1, %%al\n"