diff --git a/libc/kernel/uapi/linux/iommufd.h b/libc/kernel/uapi/linux/iommufd.h
index 6f663b4..2570628 100644
--- a/libc/kernel/uapi/linux/iommufd.h
+++ b/libc/kernel/uapi/linux/iommufd.h
@@ -12,20 +12,19 @@
 enum {
   IOMMUFD_CMD_BASE = 0x80,
   IOMMUFD_CMD_DESTROY = IOMMUFD_CMD_BASE,
-  IOMMUFD_CMD_IOAS_ALLOC = 0x81,
-  IOMMUFD_CMD_IOAS_ALLOW_IOVAS = 0x82,
-  IOMMUFD_CMD_IOAS_COPY = 0x83,
-  IOMMUFD_CMD_IOAS_IOVA_RANGES = 0x84,
-  IOMMUFD_CMD_IOAS_MAP = 0x85,
-  IOMMUFD_CMD_IOAS_UNMAP = 0x86,
-  IOMMUFD_CMD_OPTION = 0x87,
-  IOMMUFD_CMD_VFIO_IOAS = 0x88,
-  IOMMUFD_CMD_HWPT_ALLOC = 0x89,
-  IOMMUFD_CMD_GET_HW_INFO = 0x8a,
-  IOMMUFD_CMD_HWPT_SET_DIRTY_TRACKING = 0x8b,
-  IOMMUFD_CMD_HWPT_GET_DIRTY_BITMAP = 0x8c,
-  IOMMUFD_CMD_HWPT_INVALIDATE = 0x8d,
-  IOMMUFD_CMD_FAULT_QUEUE_ALLOC = 0x8e,
+  IOMMUFD_CMD_IOAS_ALLOC,
+  IOMMUFD_CMD_IOAS_ALLOW_IOVAS,
+  IOMMUFD_CMD_IOAS_COPY,
+  IOMMUFD_CMD_IOAS_IOVA_RANGES,
+  IOMMUFD_CMD_IOAS_MAP,
+  IOMMUFD_CMD_IOAS_UNMAP,
+  IOMMUFD_CMD_OPTION,
+  IOMMUFD_CMD_VFIO_IOAS,
+  IOMMUFD_CMD_HWPT_ALLOC,
+  IOMMUFD_CMD_GET_HW_INFO,
+  IOMMUFD_CMD_HWPT_SET_DIRTY_TRACKING,
+  IOMMUFD_CMD_HWPT_GET_DIRTY_BITMAP,
+  IOMMUFD_CMD_HWPT_INVALIDATE,
 };
 struct iommu_destroy {
   __u32 size;
@@ -123,7 +122,6 @@
 enum iommufd_hwpt_alloc_flags {
   IOMMU_HWPT_ALLOC_NEST_PARENT = 1 << 0,
   IOMMU_HWPT_ALLOC_DIRTY_TRACKING = 1 << 1,
-  IOMMU_HWPT_FAULT_ID_VALID = 1 << 2,
 };
 enum iommu_hwpt_vtd_s1_flags {
   IOMMU_VTD_S1_SRE = 1 << 0,
@@ -137,8 +135,8 @@
   __u32 __reserved;
 };
 enum iommu_hwpt_data_type {
-  IOMMU_HWPT_DATA_NONE = 0,
-  IOMMU_HWPT_DATA_VTD_S1 = 1,
+  IOMMU_HWPT_DATA_NONE,
+  IOMMU_HWPT_DATA_VTD_S1,
 };
 struct iommu_hwpt_alloc {
   __u32 size;
@@ -150,8 +148,6 @@
   __u32 data_type;
   __u32 data_len;
   __aligned_u64 data_uptr;
-  __u32 fault_id;
-  __u32 __reserved2;
 };
 #define IOMMU_HWPT_ALLOC _IO(IOMMUFD_TYPE, IOMMUFD_CMD_HWPT_ALLOC)
 enum iommu_hw_info_vtd_flags {
@@ -164,8 +160,8 @@
   __aligned_u64 ecap_reg;
 };
 enum iommu_hw_info_type {
-  IOMMU_HW_INFO_TYPE_NONE = 0,
-  IOMMU_HW_INFO_TYPE_INTEL_VTD = 1,
+  IOMMU_HW_INFO_TYPE_NONE,
+  IOMMU_HW_INFO_TYPE_INTEL_VTD,
 };
 enum iommufd_hw_capabilities {
   IOMMU_HW_CAP_DIRTY_TRACKING = 1 << 0,
@@ -206,7 +202,7 @@
 };
 #define IOMMU_HWPT_GET_DIRTY_BITMAP _IO(IOMMUFD_TYPE, IOMMUFD_CMD_HWPT_GET_DIRTY_BITMAP)
 enum iommu_hwpt_invalidate_data_type {
-  IOMMU_HWPT_INVALIDATE_DATA_VTD_S1 = 0,
+  IOMMU_HWPT_INVALIDATE_DATA_VTD_S1,
 };
 enum iommu_hwpt_vtd_s1_invalidate_flags {
   IOMMU_VTD_INV_FLAGS_LEAF = 1 << 0,
@@ -227,39 +223,4 @@
   __u32 __reserved;
 };
 #define IOMMU_HWPT_INVALIDATE _IO(IOMMUFD_TYPE, IOMMUFD_CMD_HWPT_INVALIDATE)
-enum iommu_hwpt_pgfault_flags {
-  IOMMU_PGFAULT_FLAGS_PASID_VALID = (1 << 0),
-  IOMMU_PGFAULT_FLAGS_LAST_PAGE = (1 << 1),
-};
-enum iommu_hwpt_pgfault_perm {
-  IOMMU_PGFAULT_PERM_READ = (1 << 0),
-  IOMMU_PGFAULT_PERM_WRITE = (1 << 1),
-  IOMMU_PGFAULT_PERM_EXEC = (1 << 2),
-  IOMMU_PGFAULT_PERM_PRIV = (1 << 3),
-};
-struct iommu_hwpt_pgfault {
-  __u32 flags;
-  __u32 dev_id;
-  __u32 pasid;
-  __u32 grpid;
-  __u32 perm;
-  __u64 addr;
-  __u32 length;
-  __u32 cookie;
-};
-enum iommufd_page_response_code {
-  IOMMUFD_PAGE_RESP_SUCCESS = 0,
-  IOMMUFD_PAGE_RESP_INVALID = 1,
-};
-struct iommu_hwpt_page_response {
-  __u32 cookie;
-  __u32 code;
-};
-struct iommu_fault_alloc {
-  __u32 size;
-  __u32 flags;
-  __u32 out_fault_id;
-  __u32 out_fault_fd;
-};
-#define IOMMU_FAULT_QUEUE_ALLOC _IO(IOMMUFD_TYPE, IOMMUFD_CMD_FAULT_QUEUE_ALLOC)
 #endif