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-rw-r--r--src/soc/intel/braswell/smihandler.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/soc/intel/braswell/smihandler.c b/src/soc/intel/braswell/smihandler.c
index a2c26c119f..d2f73bf654 100644
--- a/src/soc/intel/braswell/smihandler.c
+++ b/src/soc/intel/braswell/smihandler.c
@@ -301,6 +301,10 @@ static void southbridge_smi_apmc(void)
if (state) {
/* EBX in the state save contains the GNVS pointer */
gnvs = (struct global_nvs *)((uint32_t)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);
}