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-rw-r--r--tools/testing/nvdimm/test/ndtest.c2
-rw-r--r--tools/testing/selftests/bpf/prog_tests/tailcalls.c84
-rw-r--r--tools/testing/selftests/bpf/progs/tailcall_poke.c32
-rw-r--r--tools/testing/selftests/iommu/iommufd_utils.h13
-rw-r--r--tools/testing/selftests/kvm/riscv/get-reg-list.c10
-rw-r--r--tools/testing/selftests/mm/Makefile4
-rw-r--r--tools/testing/selftests/mm/pagemap_ioctl.c9
7 files changed, 137 insertions, 17 deletions
diff --git a/tools/testing/nvdimm/test/ndtest.c b/tools/testing/nvdimm/test/ndtest.c
index fd26189d53be..b8419f460368 100644
--- a/tools/testing/nvdimm/test/ndtest.c
+++ b/tools/testing/nvdimm/test/ndtest.c
@@ -924,7 +924,7 @@ static __init int ndtest_init(void)
nfit_test_setup(ndtest_resource_lookup, NULL);
- rc = class_regster(&ndtest_dimm_class);
+ rc = class_register(&ndtest_dimm_class);
if (rc)
goto err_register;
diff --git a/tools/testing/selftests/bpf/prog_tests/tailcalls.c b/tools/testing/selftests/bpf/prog_tests/tailcalls.c
index fc6b2954e8f5..59993fc9c0d7 100644
--- a/tools/testing/selftests/bpf/prog_tests/tailcalls.c
+++ b/tools/testing/selftests/bpf/prog_tests/tailcalls.c
@@ -1,6 +1,9 @@
// SPDX-License-Identifier: GPL-2.0
+#include <unistd.h>
#include <test_progs.h>
#include <network_helpers.h>
+#include "tailcall_poke.skel.h"
+
/* test_tailcall_1 checks basic functionality by patching multiple locations
* in a single program for a single tail call slot with nop->jmp, jmp->nop
@@ -1105,6 +1108,85 @@ out:
bpf_object__close(tgt_obj);
}
+#define JMP_TABLE "/sys/fs/bpf/jmp_table"
+
+static int poke_thread_exit;
+
+static void *poke_update(void *arg)
+{
+ __u32 zero = 0, prog1_fd, prog2_fd, map_fd;
+ struct tailcall_poke *call = arg;
+
+ map_fd = bpf_map__fd(call->maps.jmp_table);
+ prog1_fd = bpf_program__fd(call->progs.call1);
+ prog2_fd = bpf_program__fd(call->progs.call2);
+
+ while (!poke_thread_exit) {
+ bpf_map_update_elem(map_fd, &zero, &prog1_fd, BPF_ANY);
+ bpf_map_update_elem(map_fd, &zero, &prog2_fd, BPF_ANY);
+ }
+
+ return NULL;
+}
+
+/*
+ * We are trying to hit prog array update during another program load
+ * that shares the same prog array map.
+ *
+ * For that we share the jmp_table map between two skeleton instances
+ * by pinning the jmp_table to same path. Then first skeleton instance
+ * periodically updates jmp_table in 'poke update' thread while we load
+ * the second skeleton instance in the main thread.
+ */
+static void test_tailcall_poke(void)
+{
+ struct tailcall_poke *call, *test;
+ int err, cnt = 10;
+ pthread_t thread;
+
+ unlink(JMP_TABLE);
+
+ call = tailcall_poke__open_and_load();
+ if (!ASSERT_OK_PTR(call, "tailcall_poke__open"))
+ return;
+
+ err = bpf_map__pin(call->maps.jmp_table, JMP_TABLE);
+ if (!ASSERT_OK(err, "bpf_map__pin"))
+ goto out;
+
+ err = pthread_create(&thread, NULL, poke_update, call);
+ if (!ASSERT_OK(err, "new toggler"))
+ goto out;
+
+ while (cnt--) {
+ test = tailcall_poke__open();
+ if (!ASSERT_OK_PTR(test, "tailcall_poke__open"))
+ break;
+
+ err = bpf_map__set_pin_path(test->maps.jmp_table, JMP_TABLE);
+ if (!ASSERT_OK(err, "bpf_map__pin")) {
+ tailcall_poke__destroy(test);
+ break;
+ }
+
+ bpf_program__set_autoload(test->progs.test, true);
+ bpf_program__set_autoload(test->progs.call1, false);
+ bpf_program__set_autoload(test->progs.call2, false);
+
+ err = tailcall_poke__load(test);
+ tailcall_poke__destroy(test);
+ if (!ASSERT_OK(err, "tailcall_poke__load"))
+ break;
+ }
+
+ poke_thread_exit = 1;
+ ASSERT_OK(pthread_join(thread, NULL), "pthread_join");
+
+out:
+ bpf_map__unpin(call->maps.jmp_table, JMP_TABLE);
+ tailcall_poke__destroy(call);
+}
+
void test_tailcalls(void)
{
if (test__start_subtest("tailcall_1"))
@@ -1139,4 +1221,6 @@ void test_tailcalls(void)
test_tailcall_bpf2bpf_fentry_fexit();
if (test__start_subtest("tailcall_bpf2bpf_fentry_entry"))
test_tailcall_bpf2bpf_fentry_entry();
+ if (test__start_subtest("tailcall_poke"))
+ test_tailcall_poke();
}
diff --git a/tools/testing/selftests/bpf/progs/tailcall_poke.c b/tools/testing/selftests/bpf/progs/tailcall_poke.c
new file mode 100644
index 000000000000..c78b94b75e83
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_poke.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+ __uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+ __uint(max_entries, 1);
+ __uint(key_size, sizeof(__u32));
+ __uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+SEC("?fentry/bpf_fentry_test1")
+int BPF_PROG(test, int a)
+{
+ bpf_tail_call_static(ctx, &jmp_table, 0);
+ return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(call1, int a)
+{
+ return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(call2, int a)
+{
+ return 0;
+}
diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h
index 050e9751321c..ad9202335656 100644
--- a/tools/testing/selftests/iommu/iommufd_utils.h
+++ b/tools/testing/selftests/iommu/iommufd_utils.h
@@ -293,15 +293,13 @@ static int _test_mock_dirty_bitmaps(int fd, __u32 hwpt_id, size_t length,
__u64 bitmap_size, __u32 flags,
struct __test_metadata *_metadata)
{
- unsigned long i, count, nbits = bitmap_size * BITS_PER_BYTE;
+ unsigned long i, nbits = bitmap_size * BITS_PER_BYTE;
unsigned long nr = nbits / 2;
__u64 out_dirty = 0;
/* Mark all even bits as dirty in the mock domain */
- for (count = 0, i = 0; i < nbits; count += !(i % 2), i++)
- if (!(i % 2))
- set_bit(i, (unsigned long *)bitmap);
- ASSERT_EQ(nr, count);
+ for (i = 0; i < nbits; i += 2)
+ set_bit(i, (unsigned long *)bitmap);
test_cmd_mock_domain_set_dirty(fd, hwpt_id, length, iova, page_size,
bitmap, &out_dirty);
@@ -311,9 +309,10 @@ static int _test_mock_dirty_bitmaps(int fd, __u32 hwpt_id, size_t length,
memset(bitmap, 0, bitmap_size);
test_cmd_get_dirty_bitmap(fd, hwpt_id, length, iova, page_size, bitmap,
flags);
- for (count = 0, i = 0; i < nbits; count += !(i % 2), i++)
+ /* Beware ASSERT_EQ() is two statements -- braces are not redundant! */
+ for (i = 0; i < nbits; i++) {
ASSERT_EQ(!(i % 2), test_bit(i, (unsigned long *)bitmap));
- ASSERT_EQ(count, out_dirty);
+ }
memset(bitmap, 0, bitmap_size);
test_cmd_get_dirty_bitmap(fd, hwpt_id, length, iova, page_size, bitmap,
diff --git a/tools/testing/selftests/kvm/riscv/get-reg-list.c b/tools/testing/selftests/kvm/riscv/get-reg-list.c
index 6bedaea95395..25de4b8bc347 100644
--- a/tools/testing/selftests/kvm/riscv/get-reg-list.c
+++ b/tools/testing/selftests/kvm/riscv/get-reg-list.c
@@ -458,8 +458,9 @@ void print_reg(const char *prefix, __u64 id)
reg_size = "KVM_REG_SIZE_U128";
break;
default:
- printf("\tKVM_REG_RISCV | (%lld << KVM_REG_SIZE_SHIFT) | 0x%llx /* UNKNOWN */,",
- (id & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT, id & REG_MASK);
+ printf("\tKVM_REG_RISCV | (%lld << KVM_REG_SIZE_SHIFT) | 0x%llx /* UNKNOWN */,\n",
+ (id & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT, id & ~REG_MASK);
+ return;
}
switch (id & KVM_REG_RISCV_TYPE_MASK) {
@@ -496,8 +497,9 @@ void print_reg(const char *prefix, __u64 id)
reg_size, sbi_ext_id_to_str(prefix, id));
break;
default:
- printf("\tKVM_REG_RISCV | %s | 0x%llx /* UNKNOWN */,",
- reg_size, id & REG_MASK);
+ printf("\tKVM_REG_RISCV | %s | 0x%llx /* UNKNOWN */,\n",
+ reg_size, id & ~REG_MASK);
+ return;
}
}
diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile
index 78dfec8bc676..dede0bcf97a3 100644
--- a/tools/testing/selftests/mm/Makefile
+++ b/tools/testing/selftests/mm/Makefile
@@ -60,7 +60,7 @@ TEST_GEN_FILES += mrelease_test
TEST_GEN_FILES += mremap_dontunmap
TEST_GEN_FILES += mremap_test
TEST_GEN_FILES += on-fault-limit
-TEST_GEN_PROGS += pagemap_ioctl
+TEST_GEN_FILES += pagemap_ioctl
TEST_GEN_FILES += thuge-gen
TEST_GEN_FILES += transhuge-stress
TEST_GEN_FILES += uffd-stress
@@ -72,7 +72,7 @@ TEST_GEN_FILES += mdwe_test
TEST_GEN_FILES += hugetlb_fault_after_madv
ifneq ($(ARCH),arm64)
-TEST_GEN_PROGS += soft-dirty
+TEST_GEN_FILES += soft-dirty
endif
ifeq ($(ARCH),x86_64)
diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c
index befab43719ba..d59517ed3d48 100644
--- a/tools/testing/selftests/mm/pagemap_ioctl.c
+++ b/tools/testing/selftests/mm/pagemap_ioctl.c
@@ -36,6 +36,7 @@ int pagemap_fd;
int uffd;
int page_size;
int hpage_size;
+const char *progname;
#define LEN(region) ((region.end - region.start)/page_size)
@@ -1149,11 +1150,11 @@ int sanity_tests(void)
munmap(mem, mem_size);
/* 9. Memory mapped file */
- fd = open(__FILE__, O_RDONLY);
+ fd = open(progname, O_RDONLY);
if (fd < 0)
ksft_exit_fail_msg("%s Memory mapped file\n", __func__);
- ret = stat(__FILE__, &sbuf);
+ ret = stat(progname, &sbuf);
if (ret < 0)
ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
@@ -1472,12 +1473,14 @@ static void transact_test(int page_size)
extra_thread_faults);
}
-int main(void)
+int main(int argc, char *argv[])
{
int mem_size, shmid, buf_size, fd, i, ret;
char *mem, *map, *fmem;
struct stat sbuf;
+ progname = argv[0];
+
ksft_print_header();
if (init_uffd())
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 22:07:24 +0000