Commit 20cef303 authored by Pengfei Xu's avatar Pengfei Xu Committed by Shuah Khan
Browse files

selftests: ifs: verify test image loading functionality 



Scan test image files have to be loaded before starting IFS test.

Verify that In Field scan driver is able to load valid test image files.

Also check if loading an invalid test image file fails.

Reviewed-by: default avatarJithu Joseph <jithu.joseph@intel.com>
Reviewed-by: default avatarKuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Co-developed-by: default avatarAshok Raj <ashok.raj@intel.com>
Signed-off-by: default avatarAshok Raj <ashok.raj@intel.com>
Signed-off-by: default avatarPengfei Xu <pengfei.xu@intel.com>
Acked-by: default avatarJithu Joseph <jithu.joseph@intel.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 8e51106d

tools/testing/selftests/drivers/platform/x86/intel/ifs/test_ifs.sh

+120 −1
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ readonly KSFT_FAIL=1 
readonly KSFT_XFAIL=2

readonly KSFT_SKIP=4



readonly IMG_PATH="/lib/firmware/intel/ifs_0"

readonly IFS_SCAN_MODE="0"

readonly IFS_PATH="/sys/devices/virtual/misc/intel_ifs"

readonly IFS_SCAN_SYSFS_PATH="${IFS_PATH}_${IFS_SCAN_MODE}"
@@ -29,14 +30,18 @@ readonly INTEL_FAM6="06" 


FML=""

MODEL=""



STEPPING=""

CPU_FMS=""

TRUE="true"

FALSE="false"

RESULT=$KSFT_PASS

IMAGE_NAME=""

export INTERVAL_TIME=1

# For IFS cleanup tags

ORIGIN_IFS_LOADED=""

IFS_IMAGE_NEED_RESTORE=$FALSE

IFS_LOG="/tmp/ifs_logs.$$"

DEFAULT_IMG_ID=""



append_log()

{
@@ -68,6 +73,13 @@ ifs_scan_result_summary() 


ifs_cleanup()

{

	echo "[$INFO] Restore environment after IFS test"



	# Restore ifs origin image if origin image backup step is needed

	[[ "$IFS_IMAGE_NEED_RESTORE" == "$TRUE" ]] && {

		mv -f "$IMG_PATH"/"$IMAGE_NAME"_origin "$IMG_PATH"/"$IMAGE_NAME"

	}



	lsmod | grep -q "$IFS_NAME" && [[ "$ORIGIN_IFS_LOADED" == "$FALSE" ]] && {

		echo "[$INFO] modprobe -r $IFS_NAME"

		modprobe -r "$IFS_NAME"
@@ -80,6 +92,21 @@ ifs_cleanup() 
	exit "$RESULT"

}



do_cmd()

{

	local cmd=$*

	local ret=""



	append_log "[$INFO] $cmd"

	eval "$cmd"

	ret=$?

	if [[ $ret -ne 0 ]]; then

		append_log "[$FAIL] $cmd failed. Return code is $ret"

		RESULT=$KSFT_XFAIL

		ifs_cleanup

	fi

}



test_exit()

{

	local info=$1
@@ -99,6 +126,8 @@ get_cpu_fms() 
{

	FML=$(grep -m 1 "family" /proc/cpuinfo | awk -F ":" '{printf "%02x",$2;}')

	MODEL=$(grep -m 1 "model" /proc/cpuinfo | awk -F ":" '{printf "%02x",$2;}')

	STEPPING=$(grep -m 1 "stepping" /proc/cpuinfo | awk -F ":" '{printf "%02x",$2;}')

	CPU_FMS="${FML}-${MODEL}-${STEPPING}"

}



check_cpu_ifs_support_interval_time()
@@ -162,9 +191,93 @@ test_ifs_scan_entry() 
	fi

}



load_image()

{

	local image_id=$1

	local image_info=""

	local ret=""



	check_ifs_loaded

	if [[ -e "${IMG_PATH}/${IMAGE_NAME}" ]]; then

		append_log "[$INFO] echo 0x$image_id > ${IFS_SCAN_SYSFS_PATH}/current_batch"

		echo "0x$image_id" > "$IFS_SCAN_SYSFS_PATH"/current_batch 2>/dev/null

		ret=$?

		[[ "$ret" -eq 0 ]] || {

			append_log "[$FAIL] Load ifs image $image_id failed with ret:$ret\n"

			return "$ret"

		}

		image_info=$(cat ${IFS_SCAN_SYSFS_PATH}/current_batch)

		if [[ "$image_info" == 0x"$image_id" ]]; then

			append_log "[$PASS] load IFS current_batch:$image_info"

		else

			append_log "[$FAIL] current_batch:$image_info is not expected:$image_id"

			return "$KSFT_FAIL"

		fi

	else

		append_log "[$FAIL] No IFS image file ${IMG_PATH}/${IMAGE_NAME}"\

		return "$KSFT_FAIL"

	fi

	return 0

}



test_load_origin_ifs_image()

{

	local image_id=$1



	IMAGE_NAME="${CPU_FMS}-${image_id}.scan"



	load_image "$image_id" || return $?

	return 0

}



test_load_bad_ifs_image()

{

	local image_id=$1



	IMAGE_NAME="${CPU_FMS}-${image_id}.scan"



	do_cmd "mv -f ${IMG_PATH}/${IMAGE_NAME} ${IMG_PATH}/${IMAGE_NAME}_origin"



	# Set IFS_IMAGE_NEED_RESTORE to true before corrupt the origin ifs image file

	IFS_IMAGE_NEED_RESTORE=$TRUE

	do_cmd "dd if=/dev/urandom of=${IMG_PATH}/${IMAGE_NAME} bs=1K count=6 2>/dev/null"



	# Use the specified judgment for negative testing

	append_log "[$INFO] echo 0x$image_id > ${IFS_SCAN_SYSFS_PATH}/current_batch"

	echo "0x$image_id" > "$IFS_SCAN_SYSFS_PATH"/current_batch 2>/dev/null

	ret=$?

	if [[ "$ret" -ne 0 ]]; then

		append_log "[$PASS] Load invalid ifs image failed with ret:$ret not 0 as expected"

	else

		append_log "[$FAIL] Load invalid ifs image ret:$ret unexpectedly"

	fi



	do_cmd "mv -f ${IMG_PATH}/${IMAGE_NAME}_origin ${IMG_PATH}/${IMAGE_NAME}"

	IFS_IMAGE_NEED_RESTORE=$FALSE

}



test_bad_and_origin_ifs_image()

{

	local image_id=$1



	append_log "[$INFO] Test loading bad and then loading original IFS image:"

	test_load_origin_ifs_image "$image_id" || return $?

	test_load_bad_ifs_image "$image_id"

	# Load origin image again and make sure it's worked

	test_load_origin_ifs_image "$image_id" || return $?

	append_log "[$INFO] Loading invalid IFS image and then loading initial image passed.\n"

}



prepare_ifs_test_env()

{

	check_cpu_ifs_support_interval_time



	DEFAULT_IMG_ID=$(find $IMG_PATH -maxdepth 1 -name "${CPU_FMS}-[0-9a-fA-F][0-9a-fA-F].scan" \

			 2>/dev/null \

			 | sort \

			 | head -n 1 \

			 | awk -F "-" '{print $NF}' \

			 | cut -d "." -f 1)

}



test_ifs()
@@ -172,6 +285,12 @@ test_ifs() 
	prepare_ifs_test_env



	test_ifs_scan_entry



	if [[ -z "$DEFAULT_IMG_ID" ]]; then

		append_log "[$SKIP] No proper ${IMG_PATH}/${CPU_FMS}-*.scan, skip ifs_0 scan"

	else

		test_bad_and_origin_ifs_image "$DEFAULT_IMG_ID"

	fi

}



trap ifs_cleanup SIGTERM SIGINT