diff --git a/src/drivers/intel/gma/opregion.h b/src/drivers/intel/gma/opregion.h
index e3866933cd..09fa24180b 100644
--- a/src/drivers/intel/gma/opregion.h
+++ b/src/drivers/intel/gma/opregion.h
@@ -246,5 +246,7 @@ typedef struct {
 } __attribute__((packed)) optionrom_vbt_t;
 
 void intel_gma_opregion_register(uintptr_t opregion);
+uintptr_t gma_get_gnvs_aslb(const void *gnvs);
+void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb);
 
 #endif /* _COMMON_GMA_H_ */
diff --git a/src/northbridge/intel/fsp_sandybridge/gma.c b/src/northbridge/intel/fsp_sandybridge/gma.c
index 8e2d968cb3..224b674094 100644
--- a/src/northbridge/intel/fsp_sandybridge/gma.c
+++ b/src/northbridge/intel/fsp_sandybridge/gma.c
@@ -53,6 +53,19 @@ u32 map_oprom_vendev(u32 vendev)
 	return new_vendev;
 }
 
+uintptr_t gma_get_gnvs_aslb(const void *gnvs)
+{
+	const global_nvs_t *gnvs_ptr = gnvs;
+	return (uintptr_t)(gnvs_ptr ? gnvs_ptr->aslb : 0);
+}
+
+void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb)
+{
+	global_nvs_t *gnvs_ptr = gnvs;
+	if (gnvs_ptr)
+		gnvs_ptr->aslb = aslb;
+}
+
 static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device)
 {
 	if (!vendor || !device) {
@@ -121,7 +134,7 @@ gma_write_acpi_tables(struct device *const dev,
 	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
 	if (gnvs) {
 		/* IGD OpRegion Base Address */
-		gnvs->aslb = (u32)(uintptr_t)opregion;
+		gma_set_gnvs_aslb(gnvs, (uintptr_t)opregion);
 	} else {
 		printk(BIOS_ERR, "Error: GNVS table not found.\n");
 	}
diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c
index 75f3b7a944..6cd1f6f1d7 100644
--- a/src/northbridge/intel/haswell/gma.c
+++ b/src/northbridge/intel/haswell/gma.c
@@ -215,6 +215,19 @@ int gtt_poll(u32 reg, u32 mask, u32 value)
 	return 0;
 }
 
+uintptr_t gma_get_gnvs_aslb(const void *gnvs)
+{
+	const global_nvs_t *gnvs_ptr = gnvs;
+	return (uintptr_t)(gnvs_ptr ? gnvs_ptr->aslb : 0);
+}
+
+void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb)
+{
+	global_nvs_t *gnvs_ptr = gnvs;
+	if (gnvs_ptr)
+		gnvs_ptr->aslb = aslb;
+}
+
 static void power_well_enable(void)
 {
 	gtt_write(HSW_PWR_WELL_CTL1, HSW_PWR_WELL_ENABLE);
@@ -527,7 +540,7 @@ gma_write_acpi_tables(struct device *const dev,
 	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
 	if (gnvs) {
 		/* IGD OpRegion Base Address */
-		gnvs->aslb = (u32)(uintptr_t)opregion;
+		gma_set_gnvs_aslb(gnvs, (uintptr_t)opregion);
 	} else {
 		printk(BIOS_ERR, "Error: GNVS table not found.\n");
 	}
diff --git a/src/northbridge/intel/nehalem/gma.c b/src/northbridge/intel/nehalem/gma.c
index fa84f784e4..7489fd4ed2 100644
--- a/src/northbridge/intel/nehalem/gma.c
+++ b/src/northbridge/intel/nehalem/gma.c
@@ -304,6 +304,19 @@ int gtt_poll(u32 reg, u32 mask, u32 value)
 	return 0;
 }
 
+uintptr_t gma_get_gnvs_aslb(const void *gnvs)
+{
+	const global_nvs_t *gnvs_ptr = gnvs;
+	return (uintptr_t)(gnvs_ptr ? gnvs_ptr->aslb : 0);
+}
+
+void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb)
+{
+	global_nvs_t *gnvs_ptr = gnvs;
+	if (gnvs_ptr)
+		gnvs_ptr->aslb = aslb;
+}
+
 static void gma_pm_init_pre_vbios(struct device *dev)
 {
 	u32 reg32;
@@ -1136,7 +1149,7 @@ gma_write_acpi_tables(struct device *const dev,
 	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
 	if (gnvs) {
 		/* IGD OpRegion Base Address */
-		gnvs->aslb = (u32)(uintptr_t)opregion;
+		gma_set_gnvs_aslb(gnvs, (uintptr_t)opregion);
 	} else {
 		printk(BIOS_ERR, "Error: GNVS table not found.\n");
 	}
diff --git a/src/northbridge/intel/sandybridge/gma.c b/src/northbridge/intel/sandybridge/gma.c
index 9611e64797..9de3895cab 100644
--- a/src/northbridge/intel/sandybridge/gma.c
+++ b/src/northbridge/intel/sandybridge/gma.c
@@ -311,6 +311,19 @@ int gtt_poll(u32 reg, u32 mask, u32 value)
 	return 0;
 }
 
+uintptr_t gma_get_gnvs_aslb(const void *gnvs)
+{
+	const global_nvs_t *gnvs_ptr = gnvs;
+	return (uintptr_t)(gnvs_ptr ? gnvs_ptr->aslb : 0);
+}
+
+void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb)
+{
+	global_nvs_t *gnvs_ptr = gnvs;
+	if (gnvs_ptr)
+		gnvs_ptr->aslb = aslb;
+}
+
 static void gma_pm_init_pre_vbios(struct device *dev)
 {
 	u32 reg32;
@@ -689,7 +702,7 @@ gma_write_acpi_tables(struct device *const dev,
 	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
 	if (gnvs) {
 		/* IGD OpRegion Base Address */
-		gnvs->aslb = (u32)(uintptr_t)opregion;
+		gma_set_gnvs_aslb(gnvs, (uintptr_t)opregion);
 	} else {
 		printk(BIOS_ERR, "Error: GNVS table not found.\n");
 	}