add LAM basic test cases.

Signed-off-by: Xuelian Guo <[email protected]>

BM/lam/Makefile

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+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (c) 2024 Intel Corporation.
+
+CC = gcc
+CFLAGS = -D_GNU_SOURCE -lpthread -m64 -O2
+TARGET = lam
+
+$(TARGET): lam.c
+	$(CC) $(CFLAGS) -o $@ $<
+
+clean:
+	rm -f $(TARGET)

BM/lam/README.md

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+# LAM
+
+## Description
+Linear Address Masking (LAM) is a new feature in the latest Intel platform Sierra Forest.
+LAM modifies the checking that is applied to 64-bit linear addresses, allowing software 
+to use of the untranslated address bits for metadata.
+This test suite provides basic functional check to ensure LAM works properly.
+
+## Usage
+```
+make
+# To run a specific case
+./lam -t <testcase_id>
+(for example, cpuid) ./lam -t 0x80
+```
+Test results (PASS or FAIL) will be printed out. 
+
+## Testcase ID
+| Case ID | Case Name |
+| ------ | ---------------------------- |
+| 0x1    | malloc   |
+| 0x2    | max_bits |
+| 0x4    | mmap     |
+| 0x8    | syscall  |
+| 0x10   | io_uring |
+| 0x20   | inherit  |
+| 0x40   | pasid    |
+| 0x80   | cpuid    |