struct X86IOMMU_MSIMessage {
union {
struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
uint32_t __addr_head:12; /* 0xfee */
uint32_t dest:8;
uint32_t __reserved:8;
};
union {
struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
uint16_t trigger_mode:1;
uint16_t level:1;
uint16_t __resved:3;