diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index a30c5f105c..e81ddbf02f 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -225,7 +225,7 @@ typedef struct acpi_madt {
 typedef struct acpi_ivrs_info {
 } __attribute__ ((packed)) acpi_ivrs_info_t;
 
-/* IVRS IVHD (I/O Virtualization Hardware Definition Block) */
+/* IVRS IVHD (I/O Virtualization Hardware Definition Block) Type 10h */
 typedef struct acpi_ivrs_ivhd {
 	uint8_t type;
 	uint8_t flags;
@@ -236,11 +236,11 @@ typedef struct acpi_ivrs_ivhd {
 	uint32_t iommu_base_high;
 	uint16_t pci_segment_group;
 	uint16_t iommu_info;
-	uint32_t efr;
+	uint32_t iommu_feature_info;
 	uint8_t entry[0];
 } __attribute__ ((packed)) acpi_ivrs_ivhd_t;
 
-/* IVRS (I/O Virtualization Reporting Structure) */
+/* IVRS (I/O Virtualization Reporting Structure) Type 10h */
 typedef struct acpi_ivrs {
 	struct acpi_table_header header;
 	uint32_t iv_info;
diff --git a/src/southbridge/amd/sr5650/sr5650.c b/src/southbridge/amd/sr5650/sr5650.c
index 87845c6d89..853678382b 100644
--- a/src/southbridge/amd/sr5650/sr5650.c
+++ b/src/southbridge/amd/sr5650/sr5650.c
@@ -860,7 +860,7 @@ static unsigned long acpi_fill_ivrs(acpi_ivrs_t* ivrs, unsigned long current)
 	ivrs->ivhd.pci_segment_group = 0x0;
 	ivrs->ivhd.iommu_info = 0x0;
 	ivrs->ivhd.iommu_info |= (0x14 << 8);
-	ivrs->ivhd.efr = 0x0;
+	ivrs->ivhd.iommu_feature_info = 0x0;
 
 	/* Describe HPET */
 	p = (uint8_t *)current;