cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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devlink_resources.sh (2376B)

      1#!/bin/bash
      2# SPDX-License-Identifier: GPL-2.0
      3
      4lib_dir=$(dirname $0)/../../../../net/forwarding
      5
      6NUM_NETIFS=1
      7source $lib_dir/lib.sh
      8source devlink_lib_spectrum.sh
      9
     10setup_prepare()
     11{
     12	devlink_sp_read_kvd_defaults
     13}
     14
     15cleanup()
     16{
     17	pre_cleanup
     18	devlink_sp_size_kvd_to_default
     19}
     20
     21trap cleanup EXIT
     22
     23setup_prepare
     24
     25profiles_test()
     26{
     27	local i
     28
     29	log_info "Running profile tests"
     30
     31	for i in $KVD_PROFILES; do
     32		RET=0
     33		devlink_sp_resource_kvd_profile_set $i
     34		log_test "'$i' profile"
     35	done
     36
     37	# Default is explicitly tested at end to ensure it's actually applied
     38	RET=0
     39	devlink_sp_resource_kvd_profile_set "default"
     40	log_test "'default' profile"
     41}
     42
     43resources_min_test()
     44{
     45	local size
     46	local i
     47	local j
     48
     49	log_info "Running KVD-minimum tests"
     50
     51	for i in $KVD_CHILDREN; do
     52		RET=0
     53		size=$(devlink_resource_get kvd "$i" | jq '.["size_min"]')
     54		devlink_resource_size_set "$size" kvd "$i"
     55
     56		# In case of linear, need to minimize sub-resources as well
     57		if [[ "$i" == "linear" ]]; then
     58			for j in $KVDL_CHILDREN; do
     59				devlink_resource_size_set 0 kvd linear "$j"
     60			done
     61		fi
     62
     63		devlink_reload
     64		devlink_sp_size_kvd_to_default
     65		log_test "'$i' minimize [$size]"
     66	done
     67}
     68
     69resources_max_test()
     70{
     71	local min_size
     72	local size
     73	local i
     74	local j
     75
     76	log_info "Running KVD-maximum tests"
     77	for i in $KVD_CHILDREN; do
     78		RET=0
     79		devlink_sp_resource_minimize
     80
     81		# Calculate the maximum possible size for the given partition
     82		size=$(devlink_resource_size_get kvd)
     83		for j in $KVD_CHILDREN; do
     84			if [ "$i" != "$j" ]; then
     85				min_size=$(devlink_resource_get kvd "$j" | \
     86					   jq '.["size_min"]')
     87				size=$((size - min_size))
     88			fi
     89		done
     90
     91		# Test almost maximum size
     92		devlink_resource_size_set "$((size - 128))" kvd "$i"
     93		devlink_reload
     94		log_test "'$i' almost maximize [$((size - 128))]"
     95
     96		# Test above maximum size
     97		devlink resource set "$DEVLINK_DEV" \
     98			path "kvd/$i" size $((size + 128)) &> /dev/null
     99		check_fail $? "Set kvd/$i to size $((size + 128)) should fail"
    100		log_test "'$i' Overflow rejection [$((size + 128))]"
    101
    102		# Test maximum size
    103		if [ "$i" == "hash_single" ] || [ "$i" == "hash_double" ]; then
    104			echo "SKIP: Observed problem with exact max $i"
    105			continue
    106		fi
    107
    108		devlink_resource_size_set "$size" kvd "$i"
    109		devlink_reload
    110		log_test "'$i' maximize [$size]"
    111
    112		devlink_sp_size_kvd_to_default
    113	done
    114}
    115
    116profiles_test
    117resources_min_test
    118resources_max_test
    119
    120exit "$RET"