Merge branch 'Add support for aarch64 to selftests/bpf/vmtest.sh'

Manu Bretelle says:

====================

This patchset adds initial support for running BPF's vmtest on aarch64
architecture.
It includes a `config.aarch64` heavily based on `config.s390x`
Makes vmtest.sh handle aarch64 and set QEMU variables to values that
works on that arch.
Finally, it provides a DENYLIST.aarch64 that takes care of currently
broken tests on aarch64 so the vmtest run passes.

This was tested by running:

LLVM_STRIP=llvm-strip-16 CLANG=clang-16 \
    tools/testing/selftests/bpf/vmtest.sh  -- \
        ./test_progs -d \
            \"$(cat tools/testing/selftests/bpf/DENYLIST{,.aarch64} \
                | cut -d'#' -f1 \
                | sed -e 's/^[[:space:]]*//' \
                      -e 's/[[:space:]]*$//' \
                | tr -s '\n' ','\
            )\"

on an aarch64 host.
====================
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>

tools/testing/selftests/bpf/DENYLIST.aarch64

+bloom_filter_map                                 # libbpf: prog 'check_bloom': failed to attach: ERROR: strerror_r(-524)=22
+bpf_cookie/lsm
+bpf_cookie/multi_kprobe_attach_api
+bpf_cookie/multi_kprobe_link_api
+bpf_cookie/trampoline
+bpf_loop/check_callback_fn_stop                  # link unexpected error: -524
+bpf_loop/check_invalid_flags
+bpf_loop/check_nested_calls
+bpf_loop/check_non_constant_callback
+bpf_loop/check_nr_loops
+bpf_loop/check_null_callback_ctx
+bpf_loop/check_stack
+bpf_mod_race                                     # bpf_mod_kfunc_race__attach unexpected error: -524 (errno 524)
+bpf_tcp_ca/dctcp_fallback
+btf_dump/btf_dump: var_data                      # find type id unexpected find type id: actual -2 < expected 0
+cgroup_hierarchical_stats                        # attach unexpected error: -524 (errno 524)
+d_path/basic                                     # setup attach failed: -524
+deny_namespace                                   # attach unexpected error: -524 (errno 524)
+fentry_fexit                                     # fentry_attach unexpected error: -1 (errno 524)
+fentry_test                                      # fentry_attach unexpected error: -1 (errno 524)
+fexit_sleep                                      # fexit_attach fexit attach failed: -1
+fexit_stress                                     # fexit attach unexpected fexit attach: actual -524 < expected 0
+fexit_test                                       # fexit_attach unexpected error: -1 (errno 524)
+get_func_args_test                               # get_func_args_test__attach unexpected error: -524 (errno 524) (trampoline)
+get_func_ip_test                                 # get_func_ip_test__attach unexpected error: -524 (errno 524) (trampoline)
+htab_update/reenter_update
+kfree_skb                                        # attach fentry unexpected error: -524 (trampoline)
+kfunc_call/subprog                               # extern (var ksym) 'bpf_prog_active': not found in kernel BTF
+kfunc_call/subprog_lskel                         # skel unexpected error: -2
+kfunc_dynptr_param/dynptr_data_null              # libbpf: prog 'dynptr_data_null': failed to attach: ERROR: strerror_r(-524)=22
+kprobe_multi_test/attach_api_addrs               # bpf_program__attach_kprobe_multi_opts unexpected error: -95
+kprobe_multi_test/attach_api_pattern             # bpf_program__attach_kprobe_multi_opts unexpected error: -95
+kprobe_multi_test/attach_api_syms                # bpf_program__attach_kprobe_multi_opts unexpected error: -95
+kprobe_multi_test/bench_attach                   # bpf_program__attach_kprobe_multi_opts unexpected error: -95
+kprobe_multi_test/link_api_addrs                 # link_fd unexpected link_fd: actual -95 < expected 0
+kprobe_multi_test/link_api_syms                  # link_fd unexpected link_fd: actual -95 < expected 0
+kprobe_multi_test/skel_api                       # kprobe_multi__attach unexpected error: -524 (errno 524)
+ksyms_module/libbpf                              # 'bpf_testmod_ksym_percpu': not found in kernel BTF
+ksyms_module/lskel                               # test_ksyms_module_lskel__open_and_load unexpected error: -2
+libbpf_get_fd_by_id_opts                         # test_libbpf_get_fd_by_id_opts__attach unexpected error: -524 (errno 524)
+lookup_key                                       # test_lookup_key__attach unexpected error: -524 (errno 524)
+lru_bug                                          # lru_bug__attach unexpected error: -524 (errno 524)
+modify_return                                    # modify_return__attach failed unexpected error: -524 (errno 524)
+module_attach                                    # skel_attach skeleton attach failed: -524
+mptcp/base                                       # run_test mptcp unexpected error: -524 (errno 524)
+netcnt                                           # packets unexpected packets: actual 10001 != expected 10000
+recursion                                        # skel_attach unexpected error: -524 (errno 524)
+ringbuf                                          # skel_attach skeleton attachment failed: -1
+setget_sockopt                                   # attach_cgroup unexpected error: -524
+sk_storage_tracing                               # test_sk_storage_tracing__attach unexpected error: -524 (errno 524)
+skc_to_unix_sock                                 # could not attach BPF object unexpected error: -524 (errno 524)
+socket_cookie                                    # prog_attach unexpected error: -524
+stacktrace_build_id                              # compare_stack_ips stackmap vs. stack_amap err -1 errno 2
+task_local_storage/exit_creds                    # skel_attach unexpected error: -524 (errno 524)
+task_local_storage/recursion                     # skel_attach unexpected error: -524 (errno 524)
+test_bprm_opts                                   # attach attach failed: -524
+test_ima                                         # attach attach failed: -524
+test_local_storage                               # attach lsm attach failed: -524
+test_lsm                                         # test_lsm_first_attach unexpected error: -524 (errno 524)
+test_overhead                                    # attach_fentry unexpected error: -524
+timer                                            # timer unexpected error: -524 (errno 524)
+timer_crash                                      # timer_crash__attach unexpected error: -524 (errno 524)
+timer_mim                                        # timer_mim unexpected error: -524 (errno 524)
+trace_printk                                     # trace_printk__attach unexpected error: -1 (errno 524)
+trace_vprintk                                    # trace_vprintk__attach unexpected error: -1 (errno 524)
+tracing_struct                                   # tracing_struct__attach unexpected error: -524 (errno 524)
+trampoline_count                                 # attach_prog unexpected error: -524
+unpriv_bpf_disabled                              # skel_attach unexpected error: -524 (errno 524)
+user_ringbuf/test_user_ringbuf_post_misaligned   # misaligned_skel unexpected error: -524 (errno 524)
+user_ringbuf/test_user_ringbuf_post_producer_wrong_offset
+user_ringbuf/test_user_ringbuf_post_larger_than_ringbuf_sz
+user_ringbuf/test_user_ringbuf_basic             # ringbuf_basic_skel unexpected error: -524 (errno 524)
+user_ringbuf/test_user_ringbuf_sample_full_ring_buffer
+user_ringbuf/test_user_ringbuf_post_alignment_autoadjust
+user_ringbuf/test_user_ringbuf_overfill
+user_ringbuf/test_user_ringbuf_discards_properly_ignored
+user_ringbuf/test_user_ringbuf_loop
+user_ringbuf/test_user_ringbuf_msg_protocol
+user_ringbuf/test_user_ringbuf_blocking_reserve
+verify_pkcs7_sig                                 # test_verify_pkcs7_sig__attach unexpected error: -524 (errno 524)
+vmlinux                                          # skel_attach skeleton attach failed: -524

tools/testing/selftests/bpf/config.aarch64

+CONFIG_9P_FS=y
+CONFIG_ARCH_VEXPRESS=y
+CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
+CONFIG_ARM_SMMU_V3=y
+CONFIG_ATA=y
+CONFIG_AUDIT=y
+CONFIG_BINFMT_MISC=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_DEV_BSGLIB=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_BONDING=y
+CONFIG_BPFILTER=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_JIT_DEFAULT_ON=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BRIDGE=m
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CHECKPOINT_RESTORE=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_COMPAT=y
+CONFIG_CPUSETS=y
+CONFIG_CRASH_DUMP=y
+CONFIG_CRYPTO_USER_API_RNG=y
+CONFIG_CRYPTO_USER_API_SKCIPHER=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_LOCKDEP=y
+CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_DEBUG_PAGEALLOC=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_DEBUG_SG=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DEVTMPFS=y
+CONFIG_DRM_VIRTIO_GPU=y
+CONFIG_DRM=y
+CONFIG_DUMMY=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_FANOTIFY=y
+CONFIG_FB=y
+CONFIG_FUNCTION_PROFILER=y
+CONFIG_FUSE_FS=y
+CONFIG_FW_CFG_SYSFS_CMDLINE=y
+CONFIG_FW_CFG_SYSFS=y
+CONFIG_GDB_SCRIPTS=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_KPROBES_ON_FTRACE=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_HEADERS_INSTALL=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HUGETLBFS=y
+CONFIG_HW_RANDOM_VIRTIO=y
+CONFIG_HW_RANDOM=y
+CONFIG_HZ_100=y
+CONFIG_IDLE_PAGE_TRACKING=y
+CONFIG_IKHEADERS=y
+CONFIG_INET6_ESP=y
+CONFIG_INET_ESP=y
+CONFIG_INET=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPVLAN=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KERNEL_UNCOMPRESSED=y
+CONFIG_KPROBES_ON_FTRACE=y
+CONFIG_KPROBES=y
+CONFIG_KRETPROBES=y
+CONFIG_KSM=y
+CONFIG_LATENCYTOP=y
+CONFIG_LIVEPATCH=y
+CONFIG_LOCK_STAT=y
+CONFIG_MACVLAN=y
+CONFIG_MACVTAP=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+CONFIG_MEMCG=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_NAMESPACES=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_NET_9P=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NET_ACT_GACT=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_TARGET_MARK=y
+CONFIG_NET_KEY=y
+CONFIG_NET_SCH_FQ=y
+CONFIG_NET_VRF=y
+CONFIG_NET=y
+CONFIG_NF_TABLES=y
+CONFIG_NLMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=256
+CONFIG_NUMA=y
+CONFIG_OVERLAY_FS=y
+CONFIG_PACKET_DIAG=y
+CONFIG_PACKET=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PCI=y
+CONFIG_PL320_MBOX=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PTDUMP_DEBUGFS=y
+CONFIG_RC_DEVICES=y
+CONFIG_RC_LOOPBACK=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_PL031=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_SAMPLE_SECCOMP=y
+CONFIG_SAMPLES=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_SCHED_TRACER=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SCAN_ASYNC=y
+CONFIG_SCSI_VIRTIO=y
+CONFIG_SCSI=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_STACK_TRACER=y
+CONFIG_STATIC_KEYS_SELFTEST=y
+CONFIG_SYSVIPC=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_XACCT=y
+CONFIG_TCG_TIS=y
+CONFIG_TCG_TPM=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_CONG_DCTCP=y
+CONFIG_TLS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TMPFS=y
+CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UPROBES=y
+CONFIG_USELIB=y
+CONFIG_USER_NS=y
+CONFIG_VETH=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO_FS=y
+CONFIG_VIRTIO_INPUT=y
+CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS=y
+CONFIG_XFRM_USER=y

tools/testing/selftests/bpf/config.s390x

@@ -82,9 +82,6 @@ CONFIG_MARCH_Z196_TUNE=y
 CONFIG_MEMCG=y
 CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTREMOVE=y
-CONFIG_MODULE_SIG=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULES=y
 CONFIG_NAMESPACES=y
 CONFIG_NET=y
 CONFIG_NET_9P=y

tools/testing/selftests/bpf/vmtest.sh

@@ -21,6 +21,12 @@ x86_64)
 	QEMU_FLAGS=(-cpu host -smp 8)
 	BZIMAGE="arch/x86/boot/bzImage"
 	;;
+aarch64)
+	QEMU_BINARY=qemu-system-aarch64
+	QEMU_CONSOLE="ttyAMA0,115200"
+	QEMU_FLAGS=(-M virt,gic-version=3 -cpu host -smp 8)
+	BZIMAGE="arch/arm64/boot/Image"
+	;;
 *)
 	echo "Unsupported architecture"
 	exit 1