[guest-test] New Test: add TDX #VE HALT handling TC

add TDX #VE HALT handling TC based on tdx_halt_test_module

[Test Components] tdx
[Test Types] func
[Supported Devices] spr,emr,gnr,srf

Signed-off-by: Hongyu Ning <[email protected]>

guest-test/tdx/tdx.test_executor.sh

@@ -248,6 +248,16 @@ case "$TESTCASE" in
       guest_test_close || { die "Failed on close guest VM"; return 1; }
     fi
     ;;
+  TD_VE_HALT)
+    guest_test_prepare tdx_test_module.sh
+    guest_test_source_code tdx_halt_test_module halt_test || \
+    { die "Failed to prepare guest test kernel module for $TESTCASE"; return 1; }
+    guest_test_entry tdx_test_module.sh "halt_test" || \
+    { die "Failed on $TESTCASE tdx_test_module.sh halt_test"; return 1; }
+    if [[ $GCOV == "off" ]]; then
+      guest_test_close || { die "Failed on close guest VM"; return 1; }
+    fi
+    ;;
   :)
     test_print_err "Must specify the test scenario option by [-t]"
     usage && exit 1

guest-test/tdx/tdx_halt_test_module/.gitignore

@@ -0,0 +1 @@
+halt_test.ko

guest-test/tdx/tdx_halt_test_module/Makefile

@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+MODULES = halt_test.ko
+
+obj-m += halt_test.o
+
+KDIR ?= /lib/modules/$(shell uname -r)/build
+
+all:
+	make -C $(KDIR) M=$(PWD) modules
+clean:
+	make -C $(KDIR) M=$(PWD) clean

guest-test/tdx/tdx_halt_test_module/halt_test.c

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+static int __init test_tdx_hlt_init(void)
+{
+    printk(KERN_ALERT "[TD guest test] Start to trigger hlt instr.\n");
+    asm("cli");
+    asm("hlt");
+    return 0;
+}
+
+static void __exit test_tdx_hlt_exit(void)
+{
+    printk(KERN_ALERT "[TD guest test] Complete of hlt instr. test, test module exit\n");
+}
+
+module_init(test_tdx_hlt_init);
+module_exit(test_tdx_hlt_exit);
+MODULE_INFO(intree, "Y");
+MODULE_LICENSE("GPL");

guest-test/tdx/tdx_test_module.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (c) 2023 Intel Corporation
+
+# Author:   Hongyu Ning <[email protected]>
+#
+# History:  13, Dec., 2023 - Hongyu Ning - creation
+
+
+# @desc This script do test by kernel test module in TDX Guest VM
+
+###################### Variables ######################
+SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
+echo "$SCRIPT_DIR"
+source common.sh
+test_module=$1
+
+###################### Functions ######################
+module_check() {
+  lsmod | grep "$test_module" || \
+  { die "test module $test_module not found in lsmod"; return 1; }
+  test_print_trc "test module loaded and test should be completed now"
+}
+
+###################### Do Works ######################
+if [[ -f "$test_module".ko ]]; then
+  test_print_trc "Kernel test module: $test_module.ko is ready for test"
+  insmod "$test_module".ko || \
+    { die "Fail to insmod test module $test_module.ko"; exit 1; }
+  test_print_trc "$test_module.ko inserted and hlt instruction triggered"
+  module_check
+  sleep 3
+  rmmod "$test_module" || \
+    { die "Fail to rmmod test module $test_module.ko"; exit 1; }
+else
+  die "Kernel test module $test_module.ko not found"
+  exit 1
+fi

guest-test/tdx/tests

@@ -34,4 +34,6 @@ guest.test_launcher.sh -v 32 -s 1 -m 96 -d on -t tdx -f tdx -x TD_MEM_ACPT_T_32C
 guest.test_launcher.sh -v 32 -s 1 -m 96 -d on -t tdx -f tdx -x TD_MEM_ACPT_T_32C_96G_256W -c "accept_memory=lazy" -p off
 guest.test_launcher.sh -v 1 -s 1 -m 16 -d on -t tdx -f tdx -x TD_MEM_ACPT_FUNC -c "accept_memory=lazy" -p off
 guest.test_launcher.sh -v 1 -s 1 -m 16 -d on -t tdx -f tdx -x TD_MEM_ACPT_CAL -c "accept_memory=lazy" -p off
-guest.test_launcher.sh -v 1 -s 1 -m 16 -d on -t tdx -f tdx -x TD_MEM_ACPT_NEG -c "accept_memory=eager" -p off
+guest.test_launcher.sh -v 1 -s 1 -m 16 -d on -t tdx -f tdx -x TD_MEM_ACPT_NEG -c "accept_memory=eager" -p off
+# case implemented by tdx_test_module.sh
+guest.test_launcher.sh -v 1 -s 1 -m 1 -d on -t tdx -f tdx -x TD_VE_HALT -c "accept_memory=lazy" -p off