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path: root/src/southbridge/intel/lynxpoint/smihandler.c
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Diffstat (limited to 'src/southbridge/intel/lynxpoint/smihandler.c')
-rw-r--r--src/southbridge/intel/lynxpoint/smihandler.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/southbridge/intel/lynxpoint/smihandler.c b/src/southbridge/intel/lynxpoint/smihandler.c
index bb05f99439..5ccb229805 100644
--- a/src/southbridge/intel/lynxpoint/smihandler.c
+++ b/src/southbridge/intel/lynxpoint/smihandler.c
@@ -314,6 +314,10 @@ static void southbridge_smi_apmc(void)
if (state) {
/* EBX in the state save contains the GNVS pointer */
gnvs = (struct global_nvs *)((u32)state->rbx);
+ if (smm_points_to_smram(gnvs, sizeof(*gnvs))) {
+ printk(BIOS_ERR, "SMI#: ERROR: GNVS overlaps SMM\n");
+ return;
+ }
smm_initialized = 1;
printk(BIOS_DEBUG, "SMI#: Setting GNVS to %p\n", gnvs);
}