diff --git a/libc/kernel/uapi/misc/cxl.h b/libc/kernel/uapi/misc/cxl.h
new file mode 100644
index 0000000..5c29404
--- /dev/null
+++ b/libc/kernel/uapi/misc/cxl.h
@@ -0,0 +1,96 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_MISC_CXL_H
+#define _UAPI_MISC_CXL_H
+#include <linux/types.h>
+#include <linux/ioctl.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct cxl_ioctl_start_work {
+ __u64 flags;
+ __u64 work_element_descriptor;
+ __u64 amr;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __s16 num_interrupts;
+ __s16 reserved1;
+ __s32 reserved2;
+ __u64 reserved3;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u64 reserved4;
+ __u64 reserved5;
+ __u64 reserved6;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define CXL_START_WORK_AMR 0x0000000000000001ULL
+#define CXL_START_WORK_NUM_IRQS 0x0000000000000002ULL
+#define CXL_START_WORK_ALL (CXL_START_WORK_AMR |  CXL_START_WORK_NUM_IRQS)
+#define CXL_MAGIC 0xCA
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define CXL_IOCTL_START_WORK _IOW(CXL_MAGIC, 0x00, struct cxl_ioctl_start_work)
+#define CXL_IOCTL_GET_PROCESS_ELEMENT _IOR(CXL_MAGIC, 0x01, __u32)
+#define CXL_READ_MIN_SIZE 0x1000
+enum cxl_event_type {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ CXL_EVENT_RESERVED = 0,
+ CXL_EVENT_AFU_INTERRUPT = 1,
+ CXL_EVENT_DATA_STORAGE = 2,
+ CXL_EVENT_AFU_ERROR = 3,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+};
+struct cxl_event_header {
+ __u16 type;
+ __u16 size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u16 process_element;
+ __u16 reserved1;
+};
+struct cxl_event_afu_interrupt {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u16 flags;
+ __u16 irq;
+ __u32 reserved1;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct cxl_event_data_storage {
+ __u16 flags;
+ __u16 reserved1;
+ __u32 reserved2;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u64 addr;
+ __u64 dsisr;
+ __u64 reserved3;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct cxl_event_afu_error {
+ __u16 flags;
+ __u16 reserved1;
+ __u32 reserved2;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ __u64 error;
+};
+struct cxl_event {
+ struct cxl_event_header header;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ union {
+ struct cxl_event_afu_interrupt irq;
+ struct cxl_event_data_storage fault;
+ struct cxl_event_afu_error afu_error;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ };
+};
+#endif