diff --git a/libc/kernel/uapi/scsi/cxlflash_ioctl.h b/libc/kernel/uapi/scsi/cxlflash_ioctl.h
index 91ffe62..9781905 100644
--- a/libc/kernel/uapi/scsi/cxlflash_ioctl.h
+++ b/libc/kernel/uapi/scsi/cxlflash_ioctl.h
@@ -19,6 +19,7 @@
 #ifndef _CXLFLASH_IOCTL_H
 #define _CXLFLASH_IOCTL_H
 #include <linux/types.h>
+#define CXLFLASH_WWID_LEN 16
 #define DK_CXLFLASH_VERSION_0 0
 struct dk_cxlflash_hdr {
   __u16 version;
@@ -104,7 +105,7 @@
   __u64 adap_fd;
   __u64 reserved[8];
 };
-#define DK_CXLFLASH_MANAGE_LUN_WWID_LEN 16
+#define DK_CXLFLASH_MANAGE_LUN_WWID_LEN CXLFLASH_WWID_LEN
 #define DK_CXLFLASH_MANAGE_LUN_ENABLE_SUPERPIPE 0x8000000000000000ULL
 #define DK_CXLFLASH_MANAGE_LUN_DISABLE_SUPERPIPE 0x4000000000000000ULL
 #define DK_CXLFLASH_MANAGE_LUN_ALL_PORTS_ACCESSIBLE 0x2000000000000000ULL
@@ -138,4 +139,48 @@
 #define DK_CXLFLASH_USER_VIRTUAL CXL_IOWR(0x87, dk_cxlflash_uvirtual)
 #define DK_CXLFLASH_VLUN_RESIZE CXL_IOWR(0x88, dk_cxlflash_resize)
 #define DK_CXLFLASH_VLUN_CLONE CXL_IOWR(0x89, dk_cxlflash_clone)
+#define HT_CXLFLASH_VERSION_0 0
+struct ht_cxlflash_hdr {
+  __u16 version;
+  __u16 subcmd;
+  __u16 rsvd[2];
+  __u64 flags;
+  __u64 return_flags;
+};
+#define HT_CXLFLASH_HOST_READ 0x0000000000000000ULL
+#define HT_CXLFLASH_HOST_WRITE 0x0000000000000001ULL
+#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_CREATE_LUN 0x0001
+#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_DELETE_LUN 0x0002
+#define HT_CXLFLASH_LUN_PROVISION_SUBCMD_QUERY_PORT 0x0003
+struct ht_cxlflash_lun_provision {
+  struct ht_cxlflash_hdr hdr;
+  __u16 port;
+  __u16 reserved16[3];
+  __u64 size;
+  __u64 lun_id;
+  __u8 wwid[CXLFLASH_WWID_LEN];
+  __u64 max_num_luns;
+  __u64 cur_num_luns;
+  __u64 max_cap_port;
+  __u64 cur_cap_port;
+  __u64 reserved[8];
+};
+#define HT_CXLFLASH_AFU_DEBUG_MAX_DATA_LEN 262144
+#define HT_CXLFLASH_AFU_DEBUG_SUBCMD_LEN 12
+struct ht_cxlflash_afu_debug {
+  struct ht_cxlflash_hdr hdr;
+  __u8 reserved8[4];
+  __u8 afu_subcmd[HT_CXLFLASH_AFU_DEBUG_SUBCMD_LEN];
+  __u64 data_ea;
+  __u32 data_len;
+  __u32 reserved32;
+  __u64 reserved[8];
+};
+union cxlflash_ht_ioctls {
+  struct ht_cxlflash_lun_provision lun_provision;
+  struct ht_cxlflash_afu_debug afu_debug;
+};
+#define MAX_HT_CXLFLASH_IOCTL_SZ (sizeof(union cxlflash_ht_ioctls))
+#define HT_CXLFLASH_LUN_PROVISION CXL_IOWR(0xBF, ht_cxlflash_lun_provision)
+#define HT_CXLFLASH_AFU_DEBUG CXL_IOWR(0xBE, ht_cxlflash_afu_debug)
 #endif