diff --git a/tools/arch/x86/include/uapi/asm/tdx.h b/tools/arch/x86/include/uapi/asm/tdx.h
new file mode 100644
index 000000000000..687c86c9e3fb
--- /dev/null
+++ b/tools/arch/x86/include/uapi/asm/tdx.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_TDX_H
+#define _UAPI_ASM_X86_TDX_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define TDX_GUEST_DEVICE		"tdx-guest"
+
+/* Length of the REPORTDATA used in TDG.MR.REPORT TDCALL */
+#define TDX_REPORTDATA_LEN              64
+
+/* Length of TDREPORT used in TDG.MR.REPORT TDCALL */
+#define TDX_REPORT_LEN                  1024
+
+/**
+ * struct tdx_report_req: Get TDREPORT using REPORTDATA as input.
+ *
+ * @reportdata     : User-defined REPORTDATA to be included into
+ *                   TDREPORT. Typically it can be some nonce
+ *                   provided by attestation service, so the
+ *                   generated TDREPORT can be uniquely verified.
+ * @tdreport       : TDREPORT output from TDCALL[TDG.MR.REPORT].
+ * @rpd_len        : Length of the REPORTDATA (fixed as 64 bytes by
+ *                   the TDX Module specification, but parameter is
+ *                   added to handle future extension).
+ * @tdr_len        : Length of the TDREPORT (fixed as 1024 bytes by
+ *                   the TDX Module specification, but a parameter
+ *                   is added to accommodate future extension).
+ * @subtype        : Subtype of TDREPORT (fixed as 0 by TDX Module
+ *                   specification, but added a parameter to handle
+ *                   future extension).
+ * @reserved       : Reserved entries to handle future requirements.
+ *                   Default acceptable value is 0.
+ *
+ * Used in TDX_CMD_GET_REPORT IOCTL request.
+ */
+struct tdx_report_req {
+	__u64 reportdata;
+	__u64 tdreport;
+	__u32 rpd_len;
+	__u32 tdr_len;
+	__u8  subtype;
+	__u8 reserved[7];
+};
+
+/*
+ * TDX_CMD_GET_REPORT - Get TDREPORT using TDCALL[TDG.MR.REPORT]
+ *
+ * Return 0 on success, -EIO on TDCALL execution failure, and
+ * standard errno on other general error cases.
+ *
+ */
+#define TDX_CMD_GET_REPORT		_IOWR('T', 0x01, __u64)
+
+#endif /* _UAPI_ASM_X86_TDX_H */
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 10b34bb03bc1..22bdb3d848f5 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -70,6 +70,7 @@ TARGETS += sync
 TARGETS += syscall_user_dispatch
 TARGETS += sysctl
 TARGETS += tc-testing
+TARGETS += tdx
 TARGETS += timens
 ifneq (1, $(quicktest))
 TARGETS += timers
diff --git a/tools/testing/selftests/tdx/Makefile b/tools/testing/selftests/tdx/Makefile
new file mode 100644
index 000000000000..014795420184
--- /dev/null
+++ b/tools/testing/selftests/tdx/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../..
+
+LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/x86/include
+
+CFLAGS += -O3 -Wl,-no-as-needed -Wall -static -I$(LINUX_TOOL_ARCH_INCLUDE)
+
+TEST_GEN_PROGS := tdx_attest_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/tdx/config b/tools/testing/selftests/tdx/config
new file mode 100644
index 000000000000..1340073a4abf
--- /dev/null
+++ b/tools/testing/selftests/tdx/config
@@ -0,0 +1 @@
+CONFIG_INTEL_TDX_GUEST=y
diff --git a/tools/testing/selftests/tdx/tdx_attest_test.c b/tools/testing/selftests/tdx/tdx_attest_test.c
new file mode 100644
index 000000000000..122b25b38da7
--- /dev/null
+++ b/tools/testing/selftests/tdx/tdx_attest_test.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test TDX attestation
+ *
+ * Copyright (C) 2022 Intel Corporation. All rights reserved.
+ *
+ * Author: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <uapi/asm/tdx.h>
+
+#include "../kselftest_harness.h"
+
+#define TDX_GUEST_DEVNAME "/dev/"TDX_GUEST_DEVICE
+#define HEX_DUMP_SIZE	8
+#define __packed       __attribute__((packed))
+
+#define DEBUG 0
+
+/*
+ * Trusted Execution Environment (TEE) report (TDREPORT_STRUCT) type,
+ * sub type and version. More details can be found in TDX v1.0 Module
+ * specification, sec titled "REPORTTYPE".
+ */
+struct tdreport_type {
+	/* 0 - SGX, 81 -TDX, rest are reserved */
+	__u8 type;
+	/* Default value is 0 */
+	__u8 sub_type;
+	/* Default value is 0 */
+	__u8 version;
+	__u8 reserved;
+}  __packed;
+
+/*
+ * struct reportmac - First field in the TRDREPORT_STRUCT. It is common
+ * to Intel’s TEE's e.g., SGX and TDX. It is MAC-protected and contains
+ * hashes of the remainder of the report structure which includes the
+ * TEE’s measurements, and where applicable, the measurements of additional
+ * TCB elements not reflected in CPUSVN – e.g., a SEAM’s measurements.
+ * More details can be found in TDX v1.0 Module specification, sec titled
+ * "REPORTMACSTRUCT"
+ */
+struct reportmac {
+	struct tdreport_type type;
+	__u8 reserved1[12];
+	/* CPU security version */
+	__u8 cpu_svn[16];
+	/* SHA384 hash of TEE TCB INFO */
+	__u8 tee_tcb_info_hash[48];
+	/* SHA384 hash of TDINFO_STRUCT */
+	__u8 tee_td_info_hash[48];
+	/* User defined unique data passed in TDG.MR.REPORT request */
+	__u8 reportdata[64];
+	__u8 reserved2[32];
+	__u8 mac[32];
+}  __packed;
+
+/*
+ * struct td_info - It contains the measurements and initial configuration
+ * of the TDX Guest that was locked at initialization and a set of measurement
+ * registers that are run-time extendable. These values are copied from
+ * the TDCS by the TDG.MR.REPORT function. More details can be found in
+ * TDX v1.0 Module specification, sec titled "TDINFO_STRUCT".
+ */
+struct td_info {
+	/* TDX Guest attributes (like debug, spet_disable, etc) */
+	__u8 attr[8];
+	__u64 xfam;
+	/* Measurement registers */
+	__u64 mrtd[6];
+	__u64 mrconfigid[6];
+	__u64 mrowner[6];
+	__u64 mrownerconfig[6];
+	/* Runtime measurement registers */
+	__u64 rtmr[24];
+	__u64 reserved[14];
+} __packed;
+
+struct tdreport {
+	/* Common to TDX/SGX of size 256 bytes */
+	struct reportmac reportmac;
+	__u8 tee_tcb_info[239];
+	__u8 reserved[17];
+	/* Measurements and configuration data of size 512 byes */
+	struct td_info tdinfo;
+}  __packed;
+
+static void print_array_hex(const char *title, const char *prefix_str,
+		const void *buf, int len)
+{
+	int i, rowsize = HEX_DUMP_SIZE;
+	const __u8 *ptr = buf;
+
+	if (!len || !buf)
+		return;
+
+	printf("\t\t%s", title);
+
+	for (i = 0; i < len; i++) {
+		if (!(i % rowsize))
+			printf("\n%s%.8x:", prefix_str, i);
+		printf(" %.2x", ptr[i]);
+	}
+
+	printf("\n");
+}
+
+TEST(verify_report)
+{
+	__u8 reportdata[TDX_REPORTDATA_LEN];
+	struct tdx_report_req req;
+	struct tdreport tdreport;
+	int devfd, i;
+
+	devfd = open(TDX_GUEST_DEVNAME, O_RDWR | O_SYNC);
+
+	ASSERT_LT(0, devfd);
+
+	/* Generate sample report data */
+	for (i = 0; i < TDX_REPORTDATA_LEN; i++)
+		reportdata[i] = i;
+
+	/* Initialize IOCTL request */
+	req.subtype     = 0;
+	req.reportdata  = (__u64)reportdata;
+	req.rpd_len     = TDX_REPORTDATA_LEN;
+	req.tdreport    = (__u64)&tdreport;
+	req.tdr_len     = sizeof(tdreport);
+
+	memset(req.reserved, 0, sizeof(req.reserved));
+
+	/* Get TDREPORT */
+	ASSERT_EQ(0, ioctl(devfd, TDX_CMD_GET_REPORT, &req));
+
+	if (DEBUG) {
+		print_array_hex("\n\t\tTDX report data\n", "",
+				reportdata, sizeof(reportdata));
+
+		print_array_hex("\n\t\tTDX tdreport data\n", "",
+				&tdreport, sizeof(tdreport));
+	}
+
+	/* Make sure TDREPORT data includes the REPORTDATA passed */
+	ASSERT_EQ(0, memcmp(&tdreport.reportmac.reportdata[0],
+			    reportdata, sizeof(reportdata)));
+
+	ASSERT_EQ(0, close(devfd));
+}
+
+TEST_HARNESS_MAIN
