Merge tag 'kvmarm-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 updates for 6.4

- Numerous fixes for the pathological lock inversion issue that
  plagued KVM/arm64 since... forever.

- New framework allowing SMCCC-compliant hypercalls to be forwarded
  to userspace, hopefully paving the way for some more features
  being moved to VMMs rather than be implemented in the kernel.

- Large rework of the timer code to allow a VM-wide offset to be
  applied to both virtual and physical counters as well as a
  per-timer, per-vcpu offset that complements the global one.
  This last part allows the NV timer code to be implemented on
  top.

- A small set of fixes to make sure that we don't change anything
  affecting the EL1&0 translation regime just after having having
  taken an exception to EL2 until we have executed a DSB. This
  ensures that speculative walks started in EL1&0 have completed.

- The usual selftest fixes and improvements.

42 files changed, 1140 insertions, 252 deletions

diff --git a/tools/bootconfig/test-bootconfig.sh b/tools/bootconfig/test-bootconfig.sh
index f68e2e9eef8b..a2c484c243f5 100755
--- a/tools/bootconfig/test-bootconfig.sh
+++ b/tools/bootconfig/test-bootconfig.sh
@@ -87,10 +87,14 @@ xfail grep -i "error" $OUTFILE
 
 echo "Max node number check"
 
-echo -n > $TEMPCONF
-for i in `seq 1 1024` ; do
-   echo "node$i" >> $TEMPCONF
-done
+awk '
+BEGIN {
+  for (i = 0; i < 26; i += 1)
+      printf("%c\n", 65 + i % 26)
+  for (i = 26; i < 8192; i += 1)
+      printf("%c%c%c\n", 65 + i % 26, 65 + (i / 26) % 26, 65 + (i / 26 / 26))
+}
+' > $TEMPCONF
 xpass $BOOTCONF -a $TEMPCONF $INITRD
 
 echo "badnode" >> $TEMPCONF
diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h
index 8c4e3e536c04..639524b59930 100644
--- a/tools/include/uapi/linux/netdev.h
+++ b/tools/include/uapi/linux/netdev.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /* Do not edit directly, auto-generated from: */
 /*	Documentation/netlink/specs/netdev.yaml */
 /* YNL-GEN uapi header */
@@ -33,6 +33,8 @@ enum netdev_xdp_act {
 	NETDEV_XDP_ACT_HW_OFFLOAD = 16,
 	NETDEV_XDP_ACT_RX_SG = 32,
 	NETDEV_XDP_ACT_NDO_XMIT_SG = 64,
+
+	NETDEV_XDP_ACT_MASK = 127,
 };
 
 enum {
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index fbaf68335394..e4d05662a96c 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -20,8 +20,8 @@
 /* make sure libbpf doesn't use kernel-only integer typedefs */
 #pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
 
-/* prevent accidental re-addition of reallocarray()/strlcpy() */
-#pragma GCC poison reallocarray strlcpy
+/* prevent accidental re-addition of reallocarray() */
+#pragma GCC poison reallocarray
 
 #include "libbpf.h"
 #include "btf.h"
diff --git a/tools/net/ynl/lib/nlspec.py b/tools/net/ynl/lib/nlspec.py
index a34d088f6743..d04450c2a44a 100644
--- a/tools/net/ynl/lib/nlspec.py
+++ b/tools/net/ynl/lib/nlspec.py
@@ -138,10 +138,8 @@ class SpecEnumSet(SpecElement):
 
     def get_mask(self):
         mask = 0
-        idx = self.yaml.get('value-start', 0)
-        for _ in self.entries.values():
-            mask |= 1 << idx
-            idx += 1
+        for e in self.entries.values():
+            mask += e.user_value()
         return mask
 
 
@@ -276,6 +274,7 @@ class SpecFamily(SpecElement):
 
     Attributes:
         proto     protocol type (e.g. genetlink)
+        license   spec license (loaded from an SPDX tag on the spec)
 
         attr_sets  dict of attribute sets
         msgs       dict of all messages (index by name)
@@ -285,6 +284,13 @@ class SpecFamily(SpecElement):
     """
     def __init__(self, spec_path, schema_path=None):
         with open(spec_path, "r") as stream:
+            prefix = '# SPDX-License-Identifier: '
+            first = stream.readline().strip()
+            if not first.startswith(prefix):
+                raise Exception('SPDX license tag required in the spec')
+            self.license = first[len(prefix):]
+
+            stream.seek(0)
             spec = yaml.safe_load(stream)
 
         self._resolution_list = []
@@ -389,7 +395,8 @@ class SpecFamily(SpecElement):
     def resolve(self):
         self.resolve_up(super())
 
-        for elem in self.yaml['definitions']:
+        definitions = self.yaml.get('definitions', [])
+        for elem in definitions:
             if elem['type'] == 'enum' or elem['type'] == 'flags':
                 self.consts[elem['name']] = self.new_enum(elem)
             else:
diff --git a/tools/net/ynl/lib/ynl.py b/tools/net/ynl/lib/ynl.py
index 90764a83c646..32536e1f9064 100644
--- a/tools/net/ynl/lib/ynl.py
+++ b/tools/net/ynl/lib/ynl.py
@@ -200,7 +200,7 @@ def _genl_msg(nl_type, nl_flags, genl_cmd, genl_version, seq=None):
     if seq is None:
         seq = random.randint(1, 1024)
     nlmsg = struct.pack("HHII", nl_type, nl_flags, seq, 0)
-    genlmsg = struct.pack("bbH", genl_cmd, genl_version, 0)
+    genlmsg = struct.pack("BBH", genl_cmd, genl_version, 0)
     return nlmsg + genlmsg
 
 
@@ -264,7 +264,7 @@ class GenlMsg:
         self.hdr = nl_msg.raw[0:4]
         self.raw = nl_msg.raw[4:]
 
-        self.genl_cmd, self.genl_version, _ = struct.unpack("bbH", self.hdr)
+        self.genl_cmd, self.genl_version, _ = struct.unpack("BBH", self.hdr)
 
         self.raw_attrs = NlAttrs(self.raw)
 
@@ -358,7 +358,7 @@ class YnlFamily(SpecFamily):
                 raw >>= 1
                 i += 1
         else:
-            value = enum['entries'][raw - i]
+            value = enum.entries_by_val[raw - i].name
         rsp[attr_spec['name']] = value
 
     def _decode(self, attrs, space):
diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py
index 1bcc5354d800..c16671a02621 100755
--- a/tools/net/ynl/ynl-gen-c.py
+++ b/tools/net/ynl/ynl-gen-c.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
 
 import argparse
 import collections
@@ -1931,9 +1931,14 @@ def render_uapi(family, cw):
 
             if const.get('render-max', False):
                 cw.nl()
-                max_name = c_upper(name_pfx + 'max')
-                cw.p('__' + max_name + ',')
-                cw.p(max_name + ' = (__' + max_name + ' - 1)')
+                if const['type'] == 'flags':
+                    max_name = c_upper(name_pfx + 'mask')
+                    max_val = f' = {enum.get_mask()},'
+                    cw.p(max_name + max_val)
+                else:
+                    max_name = c_upper(name_pfx + 'max')
+                    cw.p('__' + max_name + ',')
+                    cw.p(max_name + ' = (__' + max_name + ' - 1)')
             cw.block_end(line=';')
             cw.nl()
         elif const['type'] == 'const':
@@ -2054,6 +2059,10 @@ def main():
 
     try:
         parsed = Family(args.spec)
+        if parsed.license != '((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)':
+            print('Spec license:', parsed.license)
+            print('License must be: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)')
+            os.sys.exit(1)
     except yaml.YAMLError as exc:
         print(exc)
         os.sys.exit(1)
@@ -2062,13 +2071,10 @@ def main():
     cw = CodeWriter(BaseNlLib(), out_file)
 
     _, spec_kernel = find_kernel_root(args.spec)
-    if args.mode == 'uapi':
-        cw.p('/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */')
+    if args.mode == 'uapi' or args.header:
+        cw.p(f'/* SPDX-License-Identifier: {parsed.license} */')
     else:
-        if args.header:
-            cw.p('/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */')
-        else:
-            cw.p('// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause')
+        cw.p(f'// SPDX-License-Identifier: {parsed.license}')
     cw.p("/* Do not edit directly, auto-generated from: */")
     cw.p(f"/*\t{spec_kernel} */")
     cw.p(f"/* YNL-GEN {args.mode} {'header' if args.header else 'source'} */")
diff --git a/tools/power/acpi/tools/pfrut/pfrut.c b/tools/power/acpi/tools/pfrut/pfrut.c
index 52aa0351533c..388c9e3ad040 100644
--- a/tools/power/acpi/tools/pfrut/pfrut.c
+++ b/tools/power/acpi/tools/pfrut/pfrut.c
@@ -97,7 +97,7 @@ static struct option long_options[] = {
 static void parse_options(int argc, char **argv)
 {
 	int option_index = 0;
-	char *pathname;
+	char *pathname, *endptr;
 	int opt;
 
 	pathname = strdup(argv[0]);
@@ -125,11 +125,23 @@ static void parse_options(int argc, char **argv)
 			log_getinfo = 1;
 			break;
 		case 'T':
-			log_type = atoi(optarg);
+			log_type = strtol(optarg, &endptr, 0);
+			if (*endptr || (log_type != 0 && log_type != 1)) {
+				printf("Number expected: type(0:execution, 1:history) - Quit.\n");
+				exit(1);
+			}
+
 			set_log_type = 1;
 			break;
 		case 'L':
-			log_level = atoi(optarg);
+			log_level = strtol(optarg, &endptr, 0);
+			if (*endptr ||
+			    (log_level != 0 && log_level != 1 &&
+			     log_level != 2 && log_level != 4)) {
+				printf("Number expected: level(0, 1, 2, 4) - Quit.\n");
+				exit(1);
+			}
+
 			set_log_level = 1;
 			break;
 		case 'R':
diff --git a/tools/power/pm-graph/sleepgraph.py b/tools/power/pm-graph/sleepgraph.py
index 82c09cd25cc2..bf4ac24a1c7a 100755
--- a/tools/power/pm-graph/sleepgraph.py
+++ b/tools/power/pm-graph/sleepgraph.py
@@ -5556,9 +5556,8 @@ def executeSuspend(quiet=False):
 		if not quiet:
 			pprint('CAPTURING TRACE')
 		op = sv.writeDatafileHeader(sv.ftracefile, testdata)
-		fp = open(tp+'trace', 'r')
-		for line in fp:
-			op.write(line)
+		fp = open(tp+'trace', 'rb')
+		op.write(ascii(fp.read()))
 		op.close()
 		sv.fsetVal('', 'trace')
 		sv.platforminfo(cmdafter)
diff --git a/tools/power/x86/turbostat/turbostat.8 b/tools/power/x86/turbostat/turbostat.8
index c7b26a3603af..8f08c3fd498d 100644
--- a/tools/power/x86/turbostat/turbostat.8
+++ b/tools/power/x86/turbostat/turbostat.8
@@ -340,10 +340,12 @@ starts a new interval.
 must be run as root.
 Alternatively, non-root users can be enabled to run turbostat this way:
 
-# setcap cap_sys_admin,cap_sys_rawio,cap_sys_nice=+ep ./turbostat
+# setcap cap_sys_admin,cap_sys_rawio,cap_sys_nice=+ep path/to/turbostat
 
 # chmod +r /dev/cpu/*/msr
 
+# chmod +r /dev/cpu_dma_latency
+
 .B "turbostat "
 reads hardware counters, but doesn't write them.
 So it will not interfere with the OS or other programs, including
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index aba460410dbd..8a36ba5df9f9 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -3,7 +3,7 @@
  * turbostat -- show CPU frequency and C-state residency
  * on modern Intel and AMD processors.
  *
- * Copyright (c) 2022 Intel Corporation.
+ * Copyright (c) 2023 Intel Corporation.
  * Len Brown <len.brown@intel.com>
  */
 
@@ -670,7 +670,7 @@ static int perf_instr_count_open(int cpu_num)
 	/* counter for cpu_num, including user + kernel and all processes */
 	fd = perf_event_open(&pea, -1, cpu_num, -1, 0);
 	if (fd == -1) {
-		warn("cpu%d: perf instruction counter", cpu_num);
+		warnx("capget(CAP_PERFMON) failed, try \"# setcap cap_sys_admin=ep %s\"", progname);
 		BIC_NOT_PRESENT(BIC_IPC);
 	}
 
@@ -2538,7 +2538,7 @@ static void dump_turbo_ratio_limits(int trl_msr_offset, int family, int model)
 
 	get_msr(base_cpu, trl_msr_offset, &msr);
 	fprintf(outf, "cpu%d: MSR_%sTURBO_RATIO_LIMIT: 0x%08llx\n",
-		base_cpu, trl_msr_offset == MSR_SECONDARY_TURBO_RATIO_LIMIT ? "SECONDARY" : "", msr);
+		base_cpu, trl_msr_offset == MSR_SECONDARY_TURBO_RATIO_LIMIT ? "SECONDARY_" : "", msr);
 
 	if (has_turbo_ratio_group_limits(family, model)) {
 		get_msr(base_cpu, MSR_TURBO_RATIO_LIMIT1, &core_counts);
@@ -3502,9 +3502,6 @@ release_msr:
 /*
  * set_my_sched_priority(pri)
  * return previous
- *
- * if non-root, do this:
- * # /sbin/setcap cap_sys_rawio,cap_sys_nice=+ep /usr/bin/turbostat
  */
 int set_my_sched_priority(int priority)
 {
@@ -3518,7 +3515,7 @@ int set_my_sched_priority(int priority)
 
 	retval = setpriority(PRIO_PROCESS, 0, priority);
 	if (retval)
-		err(retval, "setpriority(%d)", priority);
+		errx(retval, "capget(CAP_SYS_NICE) failed,try \"# setcap cap_sys_nice=ep %s\"", progname);
 
 	errno = 0;
 	retval = getpriority(PRIO_PROCESS, 0);
@@ -4426,7 +4423,7 @@ int print_hwp(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 
 	fprintf(outf, "cpu%d: MSR_HWP_STATUS: 0x%08llx "
 		"(%sGuaranteed_Perf_Change, %sExcursion_Min)\n",
-		cpu, msr, ((msr) & 0x1) ? "" : "No-", ((msr) & 0x2) ? "" : "No-");
+		cpu, msr, ((msr) & 0x1) ? "" : "No-", ((msr) & 0x4) ? "" : "No-");
 
 	return 0;
 }
@@ -5463,6 +5460,9 @@ unsigned int intel_model_duplicates(unsigned int model)
 
 	case INTEL_FAM6_ICELAKE_D:
 		return INTEL_FAM6_ICELAKE_X;
+
+	case INTEL_FAM6_EMERALDRAPIDS_X:
+		return INTEL_FAM6_SAPPHIRERAPIDS_X;
 	}
 	return model;
 }
@@ -5476,13 +5476,13 @@ void print_dev_latency(void)
 
 	fd = open(path, O_RDONLY);
 	if (fd < 0) {
-		warn("fopen %s\n", path);
+		warnx("capget(CAP_SYS_ADMIN) failed, try \"# setcap cap_sys_admin=ep %s\"", progname);
 		return;
 	}
 
 	retval = read(fd, (void *)&value, sizeof(int));
 	if (retval != sizeof(int)) {
-		warn("read %s\n", path);
+		warn("read failed %s", path);
 		close(fd);
 		return;
 	}
@@ -5543,7 +5543,7 @@ void process_cpuid()
 	edx_flags = edx;
 
 	if (get_msr(sched_getcpu(), MSR_IA32_UCODE_REV, &ucode_patch))
-		warnx("get_msr(UCODE)\n");
+		warnx("get_msr(UCODE)");
 
 	/*
 	 * check max extended function levels of CPUID.
@@ -6225,7 +6225,7 @@ int get_and_dump_counters(void)
 
 void print_version()
 {
-	fprintf(outf, "turbostat version 2022.10.04 - Len Brown <lenb@kernel.org>\n");
+	fprintf(outf, "turbostat version 2023.03.17 - Len Brown <lenb@kernel.org>\n");
 }
 
 #define COMMAND_LINE_SIZE 2048
diff --git a/tools/testing/selftests/amd-pstate/Makefile b/tools/testing/selftests/amd-pstate/Makefile
index 5fd1424db37d..c382f579fe94 100644
--- a/tools/testing/selftests/amd-pstate/Makefile
+++ b/tools/testing/selftests/amd-pstate/Makefile
@@ -4,10 +4,15 @@
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
 all:
 
-uname_M := $(shell uname -m 2>/dev/null || echo not)
-ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
+ARCH ?= $(shell uname -m 2>/dev/null || echo not)
+ARCH := $(shell echo $(ARCH) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
 
-TEST_PROGS := run.sh
-TEST_FILES := basic.sh tbench.sh gitsource.sh
+ifeq (x86,$(ARCH))
+TEST_FILES += ../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py
+TEST_FILES += ../../../power/x86/intel_pstate_tracer/intel_pstate_tracer.py
+endif
+
+TEST_PROGS += run.sh
+TEST_FILES += basic.sh tbench.sh gitsource.sh
 
 include ../lib.mk
diff --git a/tools/testing/selftests/bpf/prog_tests/uninit_stack.c b/tools/testing/selftests/bpf/prog_tests/uninit_stack.c
new file mode 100644
index 000000000000..e64c71948491
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/uninit_stack.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "uninit_stack.skel.h"
+
+void test_uninit_stack(void)
+{
+	RUN_TESTS(uninit_stack);
+}
diff --git a/tools/testing/selftests/bpf/progs/find_vma_fail1.c b/tools/testing/selftests/bpf/progs/find_vma_fail1.c
index b3b326b8e2d1..6dab9cffda13 100644
--- a/tools/testing/selftests/bpf/progs/find_vma_fail1.c
+++ b/tools/testing/selftests/bpf/progs/find_vma_fail1.c
@@ -2,6 +2,7 @@
 /* Copyright (c) 2021 Facebook */
 #include "vmlinux.h"
 #include <bpf/bpf_helpers.h>
+#define vm_flags vm_start
 
 char _license[] SEC("license") = "GPL";
 
diff --git a/tools/testing/selftests/bpf/progs/test_deny_namespace.c b/tools/testing/selftests/bpf/progs/test_deny_namespace.c
index 591104e79812..e96b901a733c 100644
--- a/tools/testing/selftests/bpf/progs/test_deny_namespace.c
+++ b/tools/testing/selftests/bpf/progs/test_deny_namespace.c
@@ -5,12 +5,10 @@
 #include <errno.h>
 #include <linux/capability.h>
 
-struct kernel_cap_struct {
-	__u64 val;
-} __attribute__((preserve_access_index));
+typedef struct { unsigned long long val; } kernel_cap_t;
 
 struct cred {
-	struct kernel_cap_struct cap_effective;
+	kernel_cap_t cap_effective;
 } __attribute__((preserve_access_index));
 
 char _license[] SEC("license") = "GPL";
@@ -18,8 +16,8 @@ char _license[] SEC("license") = "GPL";
 SEC("lsm.s/userns_create")
 int BPF_PROG(test_userns_create, const struct cred *cred, int ret)
 {
-	struct kernel_cap_struct caps = cred->cap_effective;
-	__u64 cap_mask = BIT_LL(CAP_SYS_ADMIN);
+	kernel_cap_t caps = cred->cap_effective;
+	__u64 cap_mask = 1ULL << CAP_SYS_ADMIN;
 
 	if (ret)
 		return 0;
diff --git a/tools/testing/selftests/bpf/progs/test_global_func10.c b/tools/testing/selftests/bpf/progs/test_global_func10.c
index 98327bdbbfd2..8fba3f3649e2 100644
--- a/tools/testing/selftests/bpf/progs/test_global_func10.c
+++ b/tools/testing/selftests/bpf/progs/test_global_func10.c
@@ -5,12 +5,12 @@
 #include "bpf_misc.h"
 
 struct Small {
-	int x;
+	long x;
 };
 
 struct Big {
-	int x;
-	int y;
+	long x;
+	long y;
 };
 
 __noinline int foo(const struct Big *big)
@@ -22,7 +22,7 @@ __noinline int foo(const struct Big *big)
 }
 
 SEC("cgroup_skb/ingress")
-__failure __msg("invalid indirect read from stack")
+__failure __msg("invalid indirect access to stack")
 int global_func10(struct __sk_buff *skb)
 {
 	const struct Small small = {.x = skb->len };
diff --git a/tools/testing/selftests/bpf/progs/uninit_stack.c b/tools/testing/selftests/bpf/progs/uninit_stack.c
new file mode 100644
index 000000000000..8a403470e557
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uninit_stack.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+/* Read an uninitialized value from stack at a fixed offset */
+SEC("socket")
+__naked int read_uninit_stack_fixed_off(void *ctx)
+{
+	asm volatile ("					\
+		r0 = 0;					\
+		/* force stack depth to be 128 */	\
+		*(u64*)(r10 - 128) = r1;		\
+		r1 = *(u8 *)(r10 - 8 );			\
+		r0 += r1;				\
+		r1 = *(u8 *)(r10 - 11);			\
+		r1 = *(u8 *)(r10 - 13);			\
+		r1 = *(u8 *)(r10 - 15);			\
+		r1 = *(u16*)(r10 - 16);			\
+		r1 = *(u32*)(r10 - 32);			\
+		r1 = *(u64*)(r10 - 64);			\
+		/* read from a spill of a wrong size, it is a separate	\
+		 * branch in check_stack_read_fixed_off()		\
+		 */					\
+		*(u32*)(r10 - 72) = r1;			\
+		r1 = *(u64*)(r10 - 72);			\
+		r0 = 0;					\
+		exit;					\
+"
+		      ::: __clobber_all);
+}
+
+/* Read an uninitialized value from stack at a variable offset */
+SEC("socket")
+__naked int read_uninit_stack_var_off(void *ctx)
+{
+	asm volatile ("					\
+		call %[bpf_get_prandom_u32];		\
+		/* force stack depth to be 64 */	\
+		*(u64*)(r10 - 64) = r0;			\
+		r0 = -r0;				\
+		/* give r0 a range [-31, -1] */		\
+		if r0 s<= -32 goto exit_%=;		\
+		if r0 s>= 0 goto exit_%=;		\
+		/* access stack using r0 */		\
+		r1 = r10;				\
+		r1 += r0;				\
+		r2 = *(u8*)(r1 + 0);			\
+exit_%=:	r0 = 0;					\
+		exit;					\
+"
+		      :
+		      : __imm(bpf_get_prandom_u32)
+		      : __clobber_all);
+}
+
+static __noinline void dummy(void) {}
+
+/* Pass a pointer to uninitialized stack memory to a helper.
+ * Passed memory block should be marked as STACK_MISC after helper call.
+ */
+SEC("socket")
+__log_level(7) __msg("fp-104=mmmmmmmm")
+__naked int helper_uninit_to_misc(void *ctx)
+{
+	asm volatile ("					\
+		/* force stack depth to be 128 */	\
+		*(u64*)(r10 - 128) = r1;		\
+		r1 = r10;				\
+		r1 += -128;				\
+		r2 = 32;				\
+		call %[bpf_trace_printk];		\
+		/* Call to dummy() forces print_verifier_state(..., true),	\
+		 * thus showing the stack state, matched by __msg().		\
+		 */					\
+		call %[dummy];				\
+		r0 = 0;					\
+		exit;					\
+"
+		      :
+		      : __imm(bpf_trace_printk),
+			__imm(dummy)
+		      : __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/verifier/calls.c b/tools/testing/selftests/bpf/verifier/calls.c
index 9d993926bf0e..289ed202ec66 100644
--- a/tools/testing/selftests/bpf/verifier/calls.c
+++ b/tools/testing/selftests/bpf/verifier/calls.c
@@ -2221,19 +2221,22 @@
 	 * that fp-8 stack slot was unused in the fall-through
 	 * branch and will accept the program incorrectly
 	 */
-	BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 2, 2),
+	BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 2, 2),
 	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
 	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
 	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
 	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
 	BPF_LD_MAP_FD(BPF_REG_1, 0),
 	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
-	.fixup_map_hash_48b = { 6 },
-	.errstr = "invalid indirect read from stack R2 off -8+0 size 8",
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_XDP,
+	.fixup_map_hash_48b = { 7 },
+	.errstr_unpriv = "invalid indirect read from stack R2 off -8+0 size 8",
+	.result_unpriv = REJECT,
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
 {
 	"calls: ctx read at start of subprog",
diff --git a/tools/testing/selftests/bpf/verifier/helper_access_var_len.c b/tools/testing/selftests/bpf/verifier/helper_access_var_len.c
index a6c869a7319c..9c4885885aba 100644
--- a/tools/testing/selftests/bpf/verifier/helper_access_var_len.c
+++ b/tools/testing/selftests/bpf/verifier/helper_access_var_len.c
@@ -29,19 +29,30 @@
 {
 	"helper access to variable memory: stack, bitwise AND, zero included",
 	.insns = {
-	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
-	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
-	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
-	BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
-	BPF_MOV64_IMM(BPF_REG_3, 0),
-	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
+	/* set max stack size */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -128, 0),
+	/* set r3 to a random value */
+	BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+	/* use bitwise AND to limit r3 range to [0, 64] */
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_3, 64),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+	BPF_MOV64_IMM(BPF_REG_4, 0),
+	/* Call bpf_ringbuf_output(), it is one of a few helper functions with
+	 * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.
+	 * For unpriv this should signal an error, because memory at &fp[-64] is
+	 * not initialized.
+	 */
+	BPF_EMIT_CALL(BPF_FUNC_ringbuf_output),
 	BPF_EXIT_INSN(),
 	},
-	.errstr = "invalid indirect read from stack R1 off -64+0 size 64",
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.fixup_map_ringbuf = { 4 },
+	.errstr_unpriv = "invalid indirect read from stack R2 off -64+0 size 64",
+	.result_unpriv = REJECT,
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
 {
 	"helper access to variable memory: stack, bitwise AND + JMP, wrong max",
@@ -183,20 +194,31 @@
 {
 	"helper access to variable memory: stack, JMP, no min check",
 	.insns = {
-	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
-	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
-	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
-	BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3),
-	BPF_MOV64_IMM(BPF_REG_3, 0),
-	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
+	/* set max stack size */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -128, 0),
+	/* set r3 to a random value */
+	BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+	/* use JMP to limit r3 range to [0, 64] */
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 64, 6),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+	BPF_MOV64_IMM(BPF_REG_4, 0),
+	/* Call bpf_ringbuf_output(), it is one of a few helper functions with
+	 * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.
+	 * For unpriv this should signal an error, because memory at &fp[-64] is
+	 * not initialized.
+	 */
+	BPF_EMIT_CALL(BPF_FUNC_ringbuf_output),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
-	.errstr = "invalid indirect read from stack R1 off -64+0 size 64",
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.fixup_map_ringbuf = { 4 },
+	.errstr_unpriv = "invalid indirect read from stack R2 off -64+0 size 64",
+	.result_unpriv = REJECT,
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
 {
 	"helper access to variable memory: stack, JMP (signed), no min check",
@@ -564,29 +586,41 @@
 {
 	"helper access to variable memory: 8 bytes leak",
 	.insns = {
-	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 8),
-	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
+	/* set max stack size */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -128, 0),
+	/* set r3 to a random value */
+	BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
 	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
 	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
 	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
+	/* Note: fp[-32] left uninitialized */
 	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
 	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
 	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
-	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
-	BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
-	BPF_MOV64_IMM(BPF_REG_3, 0),
-	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
+	/* Limit r3 range to [1, 64] */
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_3, 63),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 1),
+	BPF_MOV64_IMM(BPF_REG_4, 0),
+	/* Call bpf_ringbuf_output(), it is one of a few helper functions with
+	 * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.
+	 * For unpriv this should signal an error, because memory region [1, 64]
+	 * at &fp[-64] is not fully initialized.
+	 */
+	BPF_EMIT_CALL(BPF_FUNC_ringbuf_output),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
-	.errstr = "invalid indirect read from stack R1 off -64+32 size 64",
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.fixup_map_ringbuf = { 3 },
+	.errstr_unpriv = "invalid indirect read from stack R2 off -64+32 size 64",
+	.result_unpriv = REJECT,
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
 {
 	"helper access to variable memory: 8 bytes no leak (init memory)",
diff --git a/tools/testing/selftests/bpf/verifier/int_ptr.c b/tools/testing/selftests/bpf/verifier/int_ptr.c
index 070893fb2900..02d9e004260b 100644
--- a/tools/testing/selftests/bpf/verifier/int_ptr.c
+++ b/tools/testing/selftests/bpf/verifier/int_ptr.c
@@ -54,12 +54,13 @@
 		/* bpf_strtoul() */
 		BPF_EMIT_CALL(BPF_FUNC_strtoul),
 
-		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
 		BPF_EXIT_INSN(),
 	},
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_CGROUP_SYSCTL,
-	.errstr = "invalid indirect read from stack R4 off -16+4 size 8",
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "invalid indirect read from stack R4 off -16+4 size 8",
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
 {
 	"ARG_PTR_TO_LONG misaligned",
diff --git a/tools/testing/selftests/bpf/verifier/search_pruning.c b/tools/testing/selftests/bpf/verifier/search_pruning.c
index d63fd8991b03..745d6b5842fd 100644
--- a/tools/testing/selftests/bpf/verifier/search_pruning.c
+++ b/tools/testing/selftests/bpf/verifier/search_pruning.c
@@ -128,9 +128,10 @@
 		BPF_EXIT_INSN(),
 	},
 	.fixup_map_hash_8b = { 3 },
-	.errstr = "invalid read from stack off -16+0 size 8",
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr_unpriv = "invalid read from stack off -16+0 size 8",
+	.result_unpriv = REJECT,
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
 {
 	"precision tracking for u32 spill/fill",
@@ -258,6 +259,8 @@
 	BPF_EXIT_INSN(),
 	},
 	.flags = BPF_F_TEST_STATE_FREQ,
-	.errstr = "invalid read from stack off -8+1 size 8",
-	.result = REJECT,
+	.errstr_unpriv = "invalid read from stack off -8+1 size 8",
+	.result_unpriv = REJECT,
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
diff --git a/tools/testing/selftests/bpf/verifier/sock.c b/tools/testing/selftests/bpf/verifier/sock.c
index d11d0b28be41..108dd3ee1edd 100644
--- a/tools/testing/selftests/bpf/verifier/sock.c
+++ b/tools/testing/selftests/bpf/verifier/sock.c
@@ -531,33 +531,6 @@
 	.result = ACCEPT,
 },
 {
-	"sk_storage_get(map, skb->sk, &stack_value, 1): partially init stack_value",
-	.insns = {
-	BPF_MOV64_IMM(BPF_REG_2, 0),
-	BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_2, -8),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, offsetof(struct __sk_buff, sk)),
-	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2),
-	BPF_MOV64_IMM(BPF_REG_0, 0),
-	BPF_EXIT_INSN(),
-	BPF_EMIT_CALL(BPF_FUNC_sk_fullsock),
-	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
-	BPF_MOV64_IMM(BPF_REG_0, 0),
-	BPF_EXIT_INSN(),
-	BPF_MOV64_IMM(BPF_REG_4, 1),
-	BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -8),
-	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
-	BPF_LD_MAP_FD(BPF_REG_1, 0),
-	BPF_EMIT_CALL(BPF_FUNC_sk_storage_get),
-	BPF_MOV64_IMM(BPF_REG_0, 0),
-	BPF_EXIT_INSN(),
-	},
-	.fixup_sk_storage_map = { 14 },
-	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
-	.result = REJECT,
-	.errstr = "invalid indirect read from stack",
-},
-{
 	"bpf_map_lookup_elem(smap, &key)",
 	.insns = {
 	BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0),
diff --git a/tools/testing/selftests/bpf/verifier/spill_fill.c b/tools/testing/selftests/bpf/verifier/spill_fill.c
index 9bb302dade23..d1463bf4949a 100644
--- a/tools/testing/selftests/bpf/verifier/spill_fill.c
+++ b/tools/testing/selftests/bpf/verifier/spill_fill.c
@@ -171,9 +171,10 @@
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
-	.result = REJECT,
-	.errstr = "invalid read from stack off -4+0 size 4",
-	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "invalid read from stack off -4+0 size 4",
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
 },
 {
 	"Spill a u32 const scalar.  Refill as u16.  Offset to skb->data",
diff --git a/tools/testing/selftests/bpf/verifier/var_off.c b/tools/testing/selftests/bpf/verifier/var_off.c
index d37f512fad16..b183e26c03f1 100644
--- a/tools/testing/selftests/bpf/verifier/var_off.c
+++ b/tools/testing/selftests/bpf/verifier/var_off.c
@@ -213,31 +213,6 @@
 	.prog_type = BPF_PROG_TYPE_LWT_IN,
 },
 {
-	"indirect variable-offset stack access, max_off+size > max_initialized",
-	.insns = {
-	/* Fill only the second from top 8 bytes of the stack. */
-	BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
-	/* Get an unknown value. */
-	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
-	/* Make it small and 4-byte aligned. */
-	BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
-	BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 16),
-	/* Add it to fp.  We now have either fp-12 or fp-16, but we don't know
-	 * which. fp-12 size 8 is partially uninitialized stack.
-	 */
-	BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
-	/* Dereference it indirectly. */
-	BPF_LD_MAP_FD(BPF_REG_1, 0),
-	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
-	BPF_MOV64_IMM(BPF_REG_0, 0),
-	BPF_EXIT_INSN(),
-	},
-	.fixup_map_hash_8b = { 5 },
-	.errstr = "invalid indirect read from stack R2 var_off",
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_LWT_IN,
-},
-{
 	"indirect variable-offset stack access, min_off < min_initialized",
 	.insns = {
 	/* Fill only the top 8 bytes of the stack. */
@@ -290,33 +265,6 @@
 	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
 },
 {
-	"indirect variable-offset stack access, uninitialized",
-	.insns = {
-	BPF_MOV64_IMM(BPF_REG_2, 6),
-	BPF_MOV64_IMM(BPF_REG_3, 28),
-	/* Fill the top 16 bytes of the stack. */
-	BPF_ST_MEM(BPF_W, BPF_REG_10, -16, 0),
-	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
-	/* Get an unknown value. */
-	BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, 0),
-	/* Make it small and 4-byte aligned. */
-	BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 4),
-	BPF_ALU64_IMM(BPF_SUB, BPF_REG_4, 16),
-	/* Add it to fp.  We now have either fp-12 or fp-16, we don't know
-	 * which, but either way it points to initialized stack.
-	 */
-	BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_10),
-	BPF_MOV64_IMM(BPF_REG_5, 8),
-	/* Dereference it indirectly. */
-	BPF_EMIT_CALL(BPF_FUNC_getsockopt),
-	BPF_MOV64_IMM(BPF_REG_0, 0),
-	BPF_EXIT_INSN(),
-	},
-	.errstr = "invalid indirect read from stack R4 var_off",
-	.result = REJECT,
-	.prog_type = BPF_PROG_TYPE_SOCK_OPS,
-},
-{
 	"indirect variable-offset stack access, ok",
 	.insns = {
 	/* Fill the top 16 bytes of the stack. */
diff --git a/tools/testing/selftests/drivers/net/bonding/Makefile b/tools/testing/selftests/drivers/net/bonding/Makefile
index 8e3b786a748f..a39bb2560d9b 100644
--- a/tools/testing/selftests/drivers/net/bonding/Makefile
+++ b/tools/testing/selftests/drivers/net/bonding/Makefile
@@ -8,7 +8,8 @@ TEST_PROGS := \
 	dev_addr_lists.sh \
 	mode-1-recovery-updelay.sh \
 	mode-2-recovery-updelay.sh \
-	option_prio.sh
+	option_prio.sh \
+	bond-eth-type-change.sh
 
 TEST_FILES := \
 	lag_lib.sh \
diff --git a/tools/testing/selftests/drivers/net/bonding/bond-eth-type-change.sh b/tools/testing/selftests/drivers/net/bonding/bond-eth-type-change.sh
new file mode 100755
index 000000000000..5cdd22048ba7
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond-eth-type-change.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test bond device ether type changing
+#
+
+ALL_TESTS="
+	bond_test_unsuccessful_enslave_type_change
+	bond_test_successful_enslave_type_change
+"
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/net_forwarding_lib.sh
+
+bond_check_flags()
+{
+	local bonddev=$1
+
+	ip -d l sh dev "$bonddev" | grep -q "MASTER"
+	check_err $? "MASTER flag is missing from the bond device"
+
+	ip -d l sh dev "$bonddev" | grep -q "SLAVE"
+	check_err $? "SLAVE flag is missing from the bond device"
+}
+
+# test enslaved bond dev type change from ARPHRD_ETHER and back
+# this allows us to test both MASTER and SLAVE flags at once
+bond_test_enslave_type_change()
+{
+	local test_success=$1
+	local devbond0="test-bond0"
+	local devbond1="test-bond1"
+	local devbond2="test-bond2"
+	local nonethdev="test-noneth0"
+
+	# create a non-ARPHRD_ETHER device for testing (e.g. nlmon type)
+	ip link add name "$nonethdev" type nlmon
+	check_err $? "could not create a non-ARPHRD_ETHER device (nlmon)"
+	ip link add name "$devbond0" type bond
+	if [ $test_success -eq 1 ]; then
+		# we need devbond0 in active-backup mode to successfully enslave nonethdev
+		ip link set dev "$devbond0" type bond mode active-backup
+		check_err $? "could not change bond mode to active-backup"
+	fi
+	ip link add name "$devbond1" type bond
+	ip link add name "$devbond2" type bond
+	ip link set dev "$devbond0" master "$devbond1"
+	check_err $? "could not enslave $devbond0 to $devbond1"
+	# change bond type to non-ARPHRD_ETHER
+	ip link set dev "$nonethdev" master "$devbond0" 1>/dev/null 2>/dev/null
+	ip link set dev "$nonethdev" nomaster 1>/dev/null 2>/dev/null
+	# restore ARPHRD_ETHER type by enslaving such device
+	ip link set dev "$devbond2" master "$devbond0"
+	check_err $? "could not enslave $devbond2 to $devbond0"
+	ip link set dev "$devbond1" nomaster
+
+	bond_check_flags "$devbond0"
+
+	# clean up
+	ip link del dev "$devbond0"
+	ip link del dev "$devbond1"
+	ip link del dev "$devbond2"
+	ip link del dev "$nonethdev"
+}
+
+bond_test_unsuccessful_enslave_type_change()
+{
+	RET=0
+
+	bond_test_enslave_type_change 0
+	log_test "Change ether type of an enslaved bond device with unsuccessful enslave"
+}
+
+bond_test_successful_enslave_type_change()
+{
+	RET=0
+
+	bond_test_enslave_type_change 1
+	log_test "Change ether type of an enslaved bond device with successful enslave"
+}
+
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 84a627c43795..d66a0642cffd 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -141,6 +141,7 @@ TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list
 TEST_GEN_PROGS_aarch64 += aarch64/hypercalls
 TEST_GEN_PROGS_aarch64 += aarch64/page_fault_test
 TEST_GEN_PROGS_aarch64 += aarch64/psci_test
+TEST_GEN_PROGS_aarch64 += aarch64/smccc_filter
 TEST_GEN_PROGS_aarch64 += aarch64/vcpu_width_config
 TEST_GEN_PROGS_aarch64 += aarch64/vgic_init
 TEST_GEN_PROGS_aarch64 += aarch64/vgic_irq
diff --git a/tools/testing/selftests/kvm/aarch64/arch_timer.c b/tools/testing/selftests/kvm/aarch64/arch_timer.c
index 26556a266021..8ef370924a02 100644
--- a/tools/testing/selftests/kvm/aarch64/arch_timer.c
+++ b/tools/testing/selftests/kvm/aarch64/arch_timer.c
@@ -47,6 +47,7 @@ struct test_args {
 	int nr_iter;
 	int timer_period_ms;
 	int migration_freq_ms;
+	struct kvm_arm_counter_offset offset;
 };
 
 static struct test_args test_args = {
@@ -54,6 +55,7 @@ static struct test_args test_args = {
 	.nr_iter = NR_TEST_ITERS_DEF,
 	.timer_period_ms = TIMER_TEST_PERIOD_MS_DEF,
 	.migration_freq_ms = TIMER_TEST_MIGRATION_FREQ_MS,
+	.offset = { .reserved = 1 },
 };
 
 #define msecs_to_usecs(msec)		((msec) * 1000LL)
@@ -121,25 +123,35 @@ static void guest_validate_irq(unsigned int intid,
 	uint64_t xcnt = 0, xcnt_diff_us, cval = 0;
 	unsigned long xctl = 0;
 	unsigned int timer_irq = 0;
+	unsigned int accessor;
 
-	if (stage == GUEST_STAGE_VTIMER_CVAL ||
-		stage == GUEST_STAGE_VTIMER_TVAL) {
-		xctl = timer_get_ctl(VIRTUAL);
-		timer_set_ctl(VIRTUAL, CTL_IMASK);
-		xcnt = timer_get_cntct(VIRTUAL);
-		cval = timer_get_cval(VIRTUAL);
+	if (intid == IAR_SPURIOUS)
+		return;
+
+	switch (stage) {
+	case GUEST_STAGE_VTIMER_CVAL:
+	case GUEST_STAGE_VTIMER_TVAL:
+		accessor = VIRTUAL;
 		timer_irq = vtimer_irq;
-	} else if (stage == GUEST_STAGE_PTIMER_CVAL ||
-		stage == GUEST_STAGE_PTIMER_TVAL) {
-		xctl = timer_get_ctl(PHYSICAL);
-		timer_set_ctl(PHYSICAL, CTL_IMASK);
-		xcnt = timer_get_cntct(PHYSICAL);
-		cval = timer_get_cval(PHYSICAL);
+		break;
+	case GUEST_STAGE_PTIMER_CVAL:
+	case GUEST_STAGE_PTIMER_TVAL:
+		accessor = PHYSICAL;
 		timer_irq = ptimer_irq;
-	} else {
+		break;
+	default:
 		GUEST_ASSERT(0);
+		return;
 	}
 
+	xctl = timer_get_ctl(accessor);
+	if ((xctl & CTL_IMASK) || !(xctl & CTL_ENABLE))
+		return;
+
+	timer_set_ctl(accessor, CTL_IMASK);
+	xcnt = timer_get_cntct(accessor);
+	cval = timer_get_cval(accessor);
+
 	xcnt_diff_us = cycles_to_usec(xcnt - shared_data->xcnt);
 
 	/* Make sure we are dealing with the correct timer IRQ */
@@ -148,6 +160,8 @@ static void guest_validate_irq(unsigned int intid,
 	/* Basic 'timer condition met' check */
 	GUEST_ASSERT_3(xcnt >= cval, xcnt, cval, xcnt_diff_us);
 	GUEST_ASSERT_1(xctl & CTL_ISTATUS, xctl);
+
+	WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter + 1);
 }
 
 static void guest_irq_handler(struct ex_regs *regs)
@@ -158,8 +172,6 @@ static void guest_irq_handler(struct ex_regs *regs)
 
 	guest_validate_irq(intid, shared_data);
 
-	WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter + 1);
-
 	gic_set_eoi(intid);
 }
 
@@ -372,6 +384,13 @@ static struct kvm_vm *test_vm_create(void)
 	vm_init_descriptor_tables(vm);
 	vm_install_exception_handler(vm, VECTOR_IRQ_CURRENT, guest_irq_handler);
 
+	if (!test_args.offset.reserved) {
+		if (kvm_has_cap(KVM_CAP_COUNTER_OFFSET))
+			vm_ioctl(vm, KVM_ARM_SET_COUNTER_OFFSET, &test_args.offset);
+		else
+			TEST_FAIL("no support for global offset\n");
+	}
+
 	for (i = 0; i < nr_vcpus; i++)
 		vcpu_init_descriptor_tables(vcpus[i]);
 
@@ -403,6 +422,7 @@ static void test_print_help(char *name)
 		TIMER_TEST_PERIOD_MS_DEF);
 	pr_info("\t-m: Frequency (in ms) of vCPUs to migrate to different pCPU. 0 to turn off (default: %u)\n",
 		TIMER_TEST_MIGRATION_FREQ_MS);
+	pr_info("\t-o: Counter offset (in counter cycles, default: 0)\n");
 	pr_info("\t-h: print this help screen\n");
 }
 
@@ -410,7 +430,7 @@ static bool parse_args(int argc, char *argv[])
 {
 	int opt;
 
-	while ((opt = getopt(argc, argv, "hn:i:p:m:")) != -1) {
+	while ((opt = getopt(argc, argv, "hn:i:p:m:o:")) != -1) {
 		switch (opt) {
 		case 'n':
 			test_args.nr_vcpus = atoi_positive("Number of vCPUs", optarg);
@@ -429,6 +449,10 @@ static bool parse_args(int argc, char *argv[])
 		case 'm':
 			test_args.migration_freq_ms = atoi_non_negative("Frequency", optarg);
 			break;
+		case 'o':
+			test_args.offset.counter_offset = strtol(optarg, NULL, 0);
+			test_args.offset.reserved = 0;
+			break;
 		case 'h':
 		default:
 			goto err;
diff --git a/tools/testing/selftests/kvm/aarch64/get-reg-list.c b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
index d287dd2cac0a..d4e1f4af29d6 100644
--- a/tools/testing/selftests/kvm/aarch64/get-reg-list.c
+++ b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
@@ -651,7 +651,7 @@ int main(int ac, char **av)
  * The current blessed list was primed with the output of kernel version
  * v4.15 with --core-reg-fixup and then later updated with new registers.
  *
- * The blessed list is up to date with kernel version v5.13-rc3
+ * The blessed list is up to date with kernel version v6.4 (or so we hope)
  */
 static __u64 base_regs[] = {
 	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[0]),
@@ -807,10 +807,10 @@ static __u64 base_regs[] = {
 	ARM64_SYS_REG(3, 0, 0, 3, 7),
 	ARM64_SYS_REG(3, 0, 0, 4, 0),	/* ID_AA64PFR0_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 4, 1),	/* ID_AA64PFR1_EL1 */
-	ARM64_SYS_REG(3, 0, 0, 4, 2),
+	ARM64_SYS_REG(3, 0, 0, 4, 2),	/* ID_AA64PFR2_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 4, 3),
 	ARM64_SYS_REG(3, 0, 0, 4, 4),	/* ID_AA64ZFR0_EL1 */
-	ARM64_SYS_REG(3, 0, 0, 4, 5),
+	ARM64_SYS_REG(3, 0, 0, 4, 5),	/* ID_AA64SMFR0_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 4, 6),
 	ARM64_SYS_REG(3, 0, 0, 4, 7),
 	ARM64_SYS_REG(3, 0, 0, 5, 0),	/* ID_AA64DFR0_EL1 */
@@ -823,7 +823,7 @@ static __u64 base_regs[] = {
 	ARM64_SYS_REG(3, 0, 0, 5, 7),
 	ARM64_SYS_REG(3, 0, 0, 6, 0),	/* ID_AA64ISAR0_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 6, 1),	/* ID_AA64ISAR1_EL1 */
-	ARM64_SYS_REG(3, 0, 0, 6, 2),
+	ARM64_SYS_REG(3, 0, 0, 6, 2),	/* ID_AA64ISAR2_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 6, 3),
 	ARM64_SYS_REG(3, 0, 0, 6, 4),
 	ARM64_SYS_REG(3, 0, 0, 6, 5),
@@ -832,8 +832,8 @@ static __u64 base_regs[] = {
 	ARM64_SYS_REG(3, 0, 0, 7, 0),	/* ID_AA64MMFR0_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 7, 1),	/* ID_AA64MMFR1_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 7, 2),	/* ID_AA64MMFR2_EL1 */
-	ARM64_SYS_REG(3, 0, 0, 7, 3),
-	ARM64_SYS_REG(3, 0, 0, 7, 4),
+	ARM64_SYS_REG(3, 0, 0, 7, 3),	/* ID_AA64MMFR3_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 7, 4),	/* ID_AA64MMFR4_EL1 */
 	ARM64_SYS_REG(3, 0, 0, 7, 5),
 	ARM64_SYS_REG(3, 0, 0, 7, 6),
 	ARM64_SYS_REG(3, 0, 0, 7, 7),
@@ -858,6 +858,9 @@ static __u64 base_regs[] = {
 	ARM64_SYS_REG(3, 2, 0, 0, 0),	/* CSSELR_EL1 */
 	ARM64_SYS_REG(3, 3, 13, 0, 2),	/* TPIDR_EL0 */
 	ARM64_SYS_REG(3, 3, 13, 0, 3),	/* TPIDRRO_EL0 */
+	ARM64_SYS_REG(3, 3, 14, 0, 1),	/* CNTPCT_EL0 */
+	ARM64_SYS_REG(3, 3, 14, 2, 1),	/* CNTP_CTL_EL0 */
+	ARM64_SYS_REG(3, 3, 14, 2, 2),	/* CNTP_CVAL_EL0 */
 	ARM64_SYS_REG(3, 4, 3, 0, 0),	/* DACR32_EL2 */
 	ARM64_SYS_REG(3, 4, 5, 0, 1),	/* IFSR32_EL2 */
 	ARM64_SYS_REG(3, 4, 5, 3, 0),	/* FPEXC32_EL2 */
diff --git a/tools/testing/selftests/kvm/aarch64/smccc_filter.c b/tools/testing/selftests/kvm/aarch64/smccc_filter.c
new file mode 100644
index 000000000000..f4ceae9c8925
--- /dev/null
+++ b/tools/testing/selftests/kvm/aarch64/smccc_filter.c
@@ -0,0 +1,268 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * smccc_filter - Tests for the SMCCC filter UAPI.
+ *
+ * Copyright (c) 2023 Google LLC
+ *
+ * This test includes:
+ *  - Tests that the UAPI constraints are upheld by KVM. For example, userspace
+ *    is prevented from filtering the architecture range of SMCCC calls.
+ *  - Test that the filter actions (DENIED, FWD_TO_USER) work as intended.
+ */
+
+#include <linux/arm-smccc.h>
+#include <linux/psci.h>
+#include <stdint.h>
+
+#include "processor.h"
+#include "test_util.h"
+
+enum smccc_conduit {
+	HVC_INSN,
+	SMC_INSN,
+};
+
+#define for_each_conduit(conduit)					\
+	for (conduit = HVC_INSN; conduit <= SMC_INSN; conduit++)
+
+static void guest_main(uint32_t func_id, enum smccc_conduit conduit)
+{
+	struct arm_smccc_res res;
+
+	if (conduit == SMC_INSN)
+		smccc_smc(func_id, 0, 0, 0, 0, 0, 0, 0, &res);
+	else
+		smccc_hvc(func_id, 0, 0, 0, 0, 0, 0, 0, &res);
+
+	GUEST_SYNC(res.a0);
+}
+
+static int __set_smccc_filter(struct kvm_vm *vm, uint32_t start, uint32_t nr_functions,
+			      enum kvm_smccc_filter_action action)
+{
+	struct kvm_smccc_filter filter = {
+		.base		= start,
+		.nr_functions	= nr_functions,
+		.action		= action,
+	};
+
+	return __kvm_device_attr_set(vm->fd, KVM_ARM_VM_SMCCC_CTRL,
+				     KVM_ARM_VM_SMCCC_FILTER, &filter);
+}
+
+static void set_smccc_filter(struct kvm_vm *vm, uint32_t start, uint32_t nr_functions,
+			     enum kvm_smccc_filter_action action)
+{
+	int ret = __set_smccc_filter(vm, start, nr_functions, action);
+
+	TEST_ASSERT(!ret, "failed to configure SMCCC filter: %d", ret);
+}
+
+static struct kvm_vm *setup_vm(struct kvm_vcpu **vcpu)
+{
+	struct kvm_vcpu_init init;
+	struct kvm_vm *vm;
+
+	vm = vm_create(1);
+	vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init);
+
+	/*
+	 * Enable in-kernel emulation of PSCI to ensure that calls are denied
+	 * due to the SMCCC filter, not because of KVM.
+	 */
+	init.features[0] |= (1 << KVM_ARM_VCPU_PSCI_0_2);
+
+	*vcpu = aarch64_vcpu_add(vm, 0, &init, guest_main);
+	return vm;
+}
+
+static void test_pad_must_be_zero(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	struct kvm_smccc_filter filter = {
+		.base		= PSCI_0_2_FN_PSCI_VERSION,
+		.nr_functions	= 1,
+		.action		= KVM_SMCCC_FILTER_DENY,
+		.pad		= { -1 },
+	};
+	int r;
+
+	r = __kvm_device_attr_set(vm->fd, KVM_ARM_VM_SMCCC_CTRL,
+				  KVM_ARM_VM_SMCCC_FILTER, &filter);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Setting filter with nonzero padding should return EINVAL");
+}
+
+/* Ensure that userspace cannot filter the Arm Architecture SMCCC range */
+static void test_filter_reserved_range(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	uint32_t smc64_fn;
+	int r;
+
+	r = __set_smccc_filter(vm, ARM_SMCCC_ARCH_WORKAROUND_1,
+			       1, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EEXIST,
+		    "Attempt to filter reserved range should return EEXIST");
+
+	smc64_fn = ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_64,
+				      0, 0);
+
+	r = __set_smccc_filter(vm, smc64_fn, 1, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EEXIST,
+		    "Attempt to filter reserved range should return EEXIST");
+
+	kvm_vm_free(vm);
+}
+
+static void test_invalid_nr_functions(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	r = __set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 0, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Attempt to filter 0 functions should return EINVAL");
+
+	kvm_vm_free(vm);
+}
+
+static void test_overflow_nr_functions(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	r = __set_smccc_filter(vm, ~0, ~0, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Attempt to overflow filter range should return EINVAL");
+
+	kvm_vm_free(vm);
+}
+
+static void test_reserved_action(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	r = __set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 1, -1);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Attempt to use reserved filter action should return EINVAL");
+
+	kvm_vm_free(vm);
+}
+
+
+/* Test that overlapping configurations of the SMCCC filter are rejected */
+static void test_filter_overlap(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 1, KVM_SMCCC_FILTER_DENY);
+
+	r = __set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 1, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EEXIST,
+		    "Attempt to filter already configured range should return EEXIST");
+
+	kvm_vm_free(vm);
+}
+
+static void expect_call_denied(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	if (get_ucall(vcpu, &uc) != UCALL_SYNC)
+		TEST_FAIL("Unexpected ucall: %lu\n", uc.cmd);
+
+	TEST_ASSERT(uc.args[1] == SMCCC_RET_NOT_SUPPORTED,
+		    "Unexpected SMCCC return code: %lu", uc.args[1]);
+}
+
+/* Denied SMCCC calls have a return code of SMCCC_RET_NOT_SUPPORTED */
+static void test_filter_denied(void)
+{
+	enum smccc_conduit conduit;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	for_each_conduit(conduit) {
+		vm = setup_vm(&vcpu);
+
+		set_smccc_filter(vm, PSCI_0_2_FN_PSCI_VERSION, 1, KVM_SMCCC_FILTER_DENY);
+		vcpu_args_set(vcpu, 2, PSCI_0_2_FN_PSCI_VERSION, conduit);
+
+		vcpu_run(vcpu);
+		expect_call_denied(vcpu);
+
+		kvm_vm_free(vm);
+	}
+}
+
+static void expect_call_fwd_to_user(struct kvm_vcpu *vcpu, uint32_t func_id,
+				    enum smccc_conduit conduit)
+{
+	struct kvm_run *run = vcpu->run;
+
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_HYPERCALL,
+		    "Unexpected exit reason: %u", run->exit_reason);
+	TEST_ASSERT(run->hypercall.nr == func_id,
+		    "Unexpected SMCCC function: %llu", run->hypercall.nr);
+
+	if (conduit == SMC_INSN)
+		TEST_ASSERT(run->hypercall.flags & KVM_HYPERCALL_EXIT_SMC,
+			    "KVM_HYPERCALL_EXIT_SMC is not set");
+	else
+		TEST_ASSERT(!(run->hypercall.flags & KVM_HYPERCALL_EXIT_SMC),
+			    "KVM_HYPERCALL_EXIT_SMC is set");
+}
+
+/* SMCCC calls forwarded to userspace cause KVM_EXIT_HYPERCALL exits */
+static void test_filter_fwd_to_user(void)
+{
+	enum smccc_conduit conduit;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	for_each_conduit(conduit) {
+		vm = setup_vm(&vcpu);
+
+		set_smccc_filter(vm, PSCI_0_2_FN_PSCI_VERSION, 1, KVM_SMCCC_FILTER_FWD_TO_USER);
+		vcpu_args_set(vcpu, 2, PSCI_0_2_FN_PSCI_VERSION, conduit);
+
+		vcpu_run(vcpu);
+		expect_call_fwd_to_user(vcpu, PSCI_0_2_FN_PSCI_VERSION, conduit);
+
+		kvm_vm_free(vm);
+	}
+}
+
+static bool kvm_supports_smccc_filter(void)
+{
+	struct kvm_vm *vm = vm_create_barebones();
+	int r;
+
+	r = __kvm_has_device_attr(vm->fd, KVM_ARM_VM_SMCCC_CTRL, KVM_ARM_VM_SMCCC_FILTER);
+
+	kvm_vm_free(vm);
+	return !r;
+}
+
+int main(void)
+{
+	TEST_REQUIRE(kvm_supports_smccc_filter());
+
+	test_pad_must_be_zero();
+	test_invalid_nr_functions();
+	test_overflow_nr_functions();
+	test_reserved_action();
+	test_filter_reserved_range();
+	test_filter_overlap();
+	test_filter_denied();
+	test_filter_fwd_to_user();
+}
diff --git a/tools/testing/selftests/kvm/config b/tools/testing/selftests/kvm/config
index d011b38e259e..8835fed09e9f 100644
--- a/tools/testing/selftests/kvm/config
+++ b/tools/testing/selftests/kvm/config
@@ -2,3 +2,4 @@ CONFIG_KVM=y
 CONFIG_KVM_INTEL=y
 CONFIG_KVM_AMD=y
 CONFIG_USERFAULTFD=y
+CONFIG_IDLE_PAGE_TRACKING=y
diff --git a/tools/testing/selftests/kvm/include/aarch64/processor.h b/tools/testing/selftests/kvm/include/aarch64/processor.h
index 5f977528e09c..cb537253a6b9 100644
--- a/tools/testing/selftests/kvm/include/aarch64/processor.h
+++ b/tools/testing/selftests/kvm/include/aarch64/processor.h
@@ -214,6 +214,19 @@ void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
 	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
 	       uint64_t arg6, struct arm_smccc_res *res);
 
+/**
+ * smccc_smc - Invoke a SMCCC function using the smc conduit
+ * @function_id: the SMCCC function to be called
+ * @arg0-arg6: SMCCC function arguments, corresponding to registers x1-x7
+ * @res: pointer to write the return values from registers x0-x3
+ *
+ */
+void smccc_smc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
+	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
+	       uint64_t arg6, struct arm_smccc_res *res);
+
+
+
 uint32_t guest_get_vcpuid(void);
 
 #endif /* SELFTEST_KVM_PROCESSOR_H */
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
index 5972a23b2765..3a0259e25335 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
@@ -58,10 +58,27 @@ static uint64_t pte_index(struct kvm_vm *vm, vm_vaddr_t gva)
 	return (gva >> vm->page_shift) & mask;
 }
 
-static uint64_t pte_addr(struct kvm_vm *vm, uint64_t entry)
+static uint64_t addr_pte(struct kvm_vm *vm, uint64_t pa, uint64_t attrs)
 {
-	uint64_t mask = ((1UL << (vm->va_bits - vm->page_shift)) - 1) << vm->page_shift;
-	return entry & mask;
+	uint64_t pte;
+
+	pte = pa & GENMASK(47, vm->page_shift);
+	if (vm->page_shift == 16)
+		pte |= FIELD_GET(GENMASK(51, 48), pa) << 12;
+	pte |= attrs;
+
+	return pte;
+}
+
+static uint64_t pte_addr(struct kvm_vm *vm, uint64_t pte)
+{
+	uint64_t pa;
+
+	pa = pte & GENMASK(47, vm->page_shift);
+	if (vm->page_shift == 16)
+		pa |= FIELD_GET(GENMASK(15, 12), pte) << 48;
+
+	return pa;
 }
 
 static uint64_t ptrs_per_pgd(struct kvm_vm *vm)
@@ -110,18 +127,18 @@ static void _virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
 
 	ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, vaddr) * 8;
 	if (!*ptep)
-		*ptep = vm_alloc_page_table(vm) | 3;
+		*ptep = addr_pte(vm, vm_alloc_page_table(vm), 3);
 
 	switch (vm->pgtable_levels) {
 	case 4:
 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, vaddr) * 8;
 		if (!*ptep)
-			*ptep = vm_alloc_page_table(vm) | 3;
+			*ptep = addr_pte(vm, vm_alloc_page_table(vm), 3);
 		/* fall through */
 	case 3:
 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, vaddr) * 8;
 		if (!*ptep)
-			*ptep = vm_alloc_page_table(vm) | 3;
+			*ptep = addr_pte(vm, vm_alloc_page_table(vm), 3);
 		/* fall through */
 	case 2:
 		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, vaddr) * 8;
@@ -130,8 +147,7 @@ static void _virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
 		TEST_FAIL("Page table levels must be 2, 3, or 4");
 	}
 
-	*ptep = paddr | 3;
-	*ptep |= (attr_idx << 2) | (1 << 10) /* Access Flag */;
+	*ptep = addr_pte(vm, paddr, (attr_idx << 2) | (1 << 10) | 3);  /* AF */
 }
 
 void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
@@ -226,7 +242,7 @@ void aarch64_vcpu_setup(struct kvm_vcpu *vcpu, struct kvm_vcpu_init *init)
 {
 	struct kvm_vcpu_init default_init = { .target = -1, };
 	struct kvm_vm *vm = vcpu->vm;
-	uint64_t sctlr_el1, tcr_el1;
+	uint64_t sctlr_el1, tcr_el1, ttbr0_el1;
 
 	if (!init)
 		init = &default_init;
@@ -277,10 +293,13 @@ void aarch64_vcpu_setup(struct kvm_vcpu *vcpu, struct kvm_vcpu_init *init)
 		TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode);
 	}
 
+	ttbr0_el1 = vm->pgd & GENMASK(47, vm->page_shift);
+
 	/* Configure output size */
 	switch (vm->mode) {
 	case VM_MODE_P52V48_64K:
 		tcr_el1 |= 6ul << 32; /* IPS = 52 bits */
+		ttbr0_el1 |= FIELD_GET(GENMASK(51, 48), vm->pgd) << 2;
 		break;
 	case VM_MODE_P48V48_4K:
 	case VM_MODE_P48V48_16K:
@@ -310,7 +329,7 @@ void aarch64_vcpu_setup(struct kvm_vcpu *vcpu, struct kvm_vcpu_init *init)
 	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_SCTLR_EL1), sctlr_el1);
 	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TCR_EL1), tcr_el1);
 	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_MAIR_EL1), DEFAULT_MAIR_EL1);
-	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TTBR0_EL1), vm->pgd);
+	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TTBR0_EL1), ttbr0_el1);
 	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TPIDR_EL1), vcpu->id);
 }
 
@@ -508,29 +527,43 @@ void aarch64_get_supported_page_sizes(uint32_t ipa,
 	close(kvm_fd);
 }
 
+#define __smccc_call(insn, function_id, arg0, arg1, arg2, arg3, arg4, arg5,	\
+		     arg6, res)							\
+	asm volatile("mov   w0, %w[function_id]\n"				\
+		     "mov   x1, %[arg0]\n"					\
+		     "mov   x2, %[arg1]\n"					\
+		     "mov   x3, %[arg2]\n"					\
+		     "mov   x4, %[arg3]\n"					\
+		     "mov   x5, %[arg4]\n"					\
+		     "mov   x6, %[arg5]\n"					\
+		     "mov   x7, %[arg6]\n"					\
+		     #insn  "#0\n"						\
+		     "mov   %[res0], x0\n"					\
+		     "mov   %[res1], x1\n"					\
+		     "mov   %[res2], x2\n"					\
+		     "mov   %[res3], x3\n"					\
+		     : [res0] "=r"(res->a0), [res1] "=r"(res->a1),		\
+		       [res2] "=r"(res->a2), [res3] "=r"(res->a3)		\
+		     : [function_id] "r"(function_id), [arg0] "r"(arg0),	\
+		       [arg1] "r"(arg1), [arg2] "r"(arg2), [arg3] "r"(arg3),	\
+		       [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)	\
+		     : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7")
+
+
 void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
 	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
 	       uint64_t arg6, struct arm_smccc_res *res)
 {
-	asm volatile("mov   w0, %w[function_id]\n"
-		     "mov   x1, %[arg0]\n"
-		     "mov   x2, %[arg1]\n"
-		     "mov   x3, %[arg2]\n"
-		     "mov   x4, %[arg3]\n"
-		     "mov   x5, %[arg4]\n"
-		     "mov   x6, %[arg5]\n"
-		     "mov   x7, %[arg6]\n"
-		     "hvc   #0\n"
-		     "mov   %[res0], x0\n"
-		     "mov   %[res1], x1\n"
-		     "mov   %[res2], x2\n"
-		     "mov   %[res3], x3\n"
-		     : [res0] "=r"(res->a0), [res1] "=r"(res->a1),
-		       [res2] "=r"(res->a2), [res3] "=r"(res->a3)
-		     : [function_id] "r"(function_id), [arg0] "r"(arg0),
-		       [arg1] "r"(arg1), [arg2] "r"(arg2), [arg3] "r"(arg3),
-		       [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)
-		     : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7");
+	__smccc_call(hvc, function_id, arg0, arg1, arg2, arg3, arg4, arg5,
+		     arg6, res);
+}
+
+void smccc_smc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
+	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
+	       uint64_t arg6, struct arm_smccc_res *res)
+{
+	__smccc_call(smc, function_id, arg0, arg1, arg2, arg3, arg4, arg5,
+		     arg6, res);
 }
 
 void kvm_selftest_arch_init(void)
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index f7900e75d230..05400462c779 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -10,12 +10,14 @@ endif
 CLANG_TARGET_FLAGS_arm          := arm-linux-gnueabi
 CLANG_TARGET_FLAGS_arm64        := aarch64-linux-gnu
 CLANG_TARGET_FLAGS_hexagon      := hexagon-linux-musl
+CLANG_TARGET_FLAGS_i386         := i386-linux-gnu
 CLANG_TARGET_FLAGS_m68k         := m68k-linux-gnu
 CLANG_TARGET_FLAGS_mips         := mipsel-linux-gnu
 CLANG_TARGET_FLAGS_powerpc      := powerpc64le-linux-gnu
 CLANG_TARGET_FLAGS_riscv        := riscv64-linux-gnu
 CLANG_TARGET_FLAGS_s390         := s390x-linux-gnu
 CLANG_TARGET_FLAGS_x86          := x86_64-linux-gnu
+CLANG_TARGET_FLAGS_x86_64       := x86_64-linux-gnu
 CLANG_TARGET_FLAGS              := $(CLANG_TARGET_FLAGS_$(ARCH))
 
 ifeq ($(CROSS_COMPILE),)
diff --git a/tools/testing/selftests/mm/mdwe_test.c b/tools/testing/selftests/mm/mdwe_test.c
index f466a099f1bf..bc91bef5d254 100644
--- a/tools/testing/selftests/mm/mdwe_test.c
+++ b/tools/testing/selftests/mm/mdwe_test.c
@@ -163,9 +163,8 @@ TEST_F(mdwe, mprotect_WRITE_EXEC)
 
 TEST_F(mdwe, mmap_FIXED)
 {
-	void *p, *p2;
+	void *p;
 
-	p2 = mmap(NULL, self->size, PROT_READ | PROT_EXEC, self->flags, 0, 0);
 	self->p = mmap(NULL, self->size, PROT_READ, self->flags, 0, 0);
 	ASSERT_NE(self->p, MAP_FAILED);
 
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
index a6911cae368c..80f06aa62034 100644
--- a/tools/testing/selftests/net/.gitignore
+++ b/tools/testing/selftests/net/.gitignore
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 bind_bhash
 bind_timewait
+bind_wildcard
 csum
 cmsg_sender
 diag_uid
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 6cd8993454d7..80fbfe0330f6 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -80,6 +80,7 @@ TEST_GEN_FILES += sctp_hello
 TEST_GEN_FILES += csum
 TEST_GEN_FILES += nat6to4.o
 TEST_GEN_FILES += ip_local_port_range
+TEST_GEN_FILES += bind_wildcard
 
 TEST_FILES := settings
 
diff --git a/tools/testing/selftests/net/bind_wildcard.c b/tools/testing/selftests/net/bind_wildcard.c
new file mode 100644
index 000000000000..58edfc15d28b
--- /dev/null
+++ b/tools/testing/selftests/net/bind_wildcard.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include "../kselftest_harness.h"
+
+FIXTURE(bind_wildcard)
+{
+	struct sockaddr_in addr4;
+	struct sockaddr_in6 addr6;
+	int expected_errno;
+};
+
+FIXTURE_VARIANT(bind_wildcard)
+{
+	const __u32 addr4_const;
+	const struct in6_addr *addr6_const;
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_any)
+{
+	.addr4_const = INADDR_ANY,
+	.addr6_const = &in6addr_any,
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_local)
+{
+	.addr4_const = INADDR_ANY,
+	.addr6_const = &in6addr_loopback,
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_any)
+{
+	.addr4_const = INADDR_LOOPBACK,
+	.addr6_const = &in6addr_any,
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_local)
+{
+	.addr4_const = INADDR_LOOPBACK,
+	.addr6_const = &in6addr_loopback,
+};
+
+FIXTURE_SETUP(bind_wildcard)
+{
+	self->addr4.sin_family = AF_INET;
+	self->addr4.sin_port = htons(0);
+	self->addr4.sin_addr.s_addr = htonl(variant->addr4_const);
+
+	self->addr6.sin6_family = AF_INET6;
+	self->addr6.sin6_port = htons(0);
+	self->addr6.sin6_addr = *variant->addr6_const;
+
+	if (variant->addr6_const == &in6addr_any)
+		self->expected_errno = EADDRINUSE;
+	else
+		self->expected_errno = 0;
+}
+
+FIXTURE_TEARDOWN(bind_wildcard)
+{
+}
+
+void bind_sockets(struct __test_metadata *_metadata,
+		  FIXTURE_DATA(bind_wildcard) *self,
+		  struct sockaddr *addr1, socklen_t addrlen1,
+		  struct sockaddr *addr2, socklen_t addrlen2)
+{
+	int fd[2];
+	int ret;
+
+	fd[0] = socket(addr1->sa_family, SOCK_STREAM, 0);
+	ASSERT_GT(fd[0], 0);
+
+	ret = bind(fd[0], addr1, addrlen1);
+	ASSERT_EQ(ret, 0);
+
+	ret = getsockname(fd[0], addr1, &addrlen1);
+	ASSERT_EQ(ret, 0);
+
+	((struct sockaddr_in *)addr2)->sin_port = ((struct sockaddr_in *)addr1)->sin_port;
+
+	fd[1] = socket(addr2->sa_family, SOCK_STREAM, 0);
+	ASSERT_GT(fd[1], 0);
+
+	ret = bind(fd[1], addr2, addrlen2);
+	if (self->expected_errno) {
+		ASSERT_EQ(ret, -1);
+		ASSERT_EQ(errno, self->expected_errno);
+	} else {
+		ASSERT_EQ(ret, 0);
+	}
+
+	close(fd[1]);
+	close(fd[0]);
+}
+
+TEST_F(bind_wildcard, v4_v6)
+{
+	bind_sockets(_metadata, self,
+		     (struct sockaddr *)&self->addr4, sizeof(self->addr6),
+		     (struct sockaddr *)&self->addr6, sizeof(self->addr6));
+}
+
+TEST_F(bind_wildcard, v6_v4)
+{
+	bind_sockets(_metadata, self,
+		     (struct sockaddr *)&self->addr6, sizeof(self->addr6),
+		     (struct sockaddr *)&self->addr4, sizeof(self->addr4));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/devlink_port_split.py b/tools/testing/selftests/net/devlink_port_split.py
index 2b5d6ff87373..2d84c7a0be6b 100755
--- a/tools/testing/selftests/net/devlink_port_split.py
+++ b/tools/testing/selftests/net/devlink_port_split.py
@@ -59,6 +59,8 @@ class devlink_ports(object):
         assert stderr == ""
         ports = json.loads(stdout)['port']
 
+        validate_devlink_output(ports, 'flavour')
+
         for port in ports:
             if dev in port:
                 if ports[port]['flavour'] == 'physical':
@@ -220,6 +222,27 @@ def split_splittable_port(port, k, lanes, dev):
     unsplit(port.bus_info)
 
 
+def validate_devlink_output(devlink_data, target_property=None):
+    """
+    Determine if test should be skipped by checking:
+      1. devlink_data contains values
+      2. The target_property exist in devlink_data
+    """
+    skip_reason = None
+    if any(devlink_data.values()):
+        if target_property:
+            skip_reason = "{} not found in devlink output, test skipped".format(target_property)
+            for key in devlink_data:
+                if target_property in devlink_data[key]:
+                    skip_reason = None
+    else:
+        skip_reason = 'devlink output is empty, test skipped'
+
+    if skip_reason:
+        print(skip_reason)
+        sys.exit(KSFT_SKIP)
+
+
 def make_parser():
     parser = argparse.ArgumentParser(description='A test for port splitting.')
     parser.add_argument('--dev',
@@ -240,12 +263,9 @@ def main(cmdline=None):
         stdout, stderr = run_command(cmd)
         assert stderr == ""
 
+        validate_devlink_output(json.loads(stdout))
         devs = json.loads(stdout)['dev']
-        if devs:
-            dev = list(devs.keys())[0]
-        else:
-            print("no devlink device was found, test skipped")
-            sys.exit(KSFT_SKIP)
+        dev = list(devs.keys())[0]
 
     cmd = "devlink dev show %s" % dev
     stdout, stderr = run_command(cmd)
@@ -255,6 +275,7 @@ def main(cmdline=None):
 
     ports = devlink_ports(dev)
 
+    found_max_lanes = False
     for port in ports.if_names:
         max_lanes = get_max_lanes(port.name)
 
@@ -277,6 +298,11 @@ def main(cmdline=None):
                 split_splittable_port(port, lane, max_lanes, dev)
 
                 lane //= 2
+        found_max_lanes = True
+
+    if not found_max_lanes:
+        print(f"Test not started, no port of device {dev} reports max_lanes")
+        sys.exit(KSFT_SKIP)
 
 
 if __name__ == "__main__":
diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index 66c5be25c13d..48e52f995a98 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -240,7 +240,7 @@ check_expected_one()
 	fi
 
 	stdbuf -o0 -e0 printf "\tExpected value for '%s': '%s', got '%s'.\n" \
-		"${var}" "${!var}" "${!exp}"
+		"${var}" "${!exp}" "${!var}"
 	return 1
 }
 
diff --git a/tools/testing/selftests/x86/amx.c b/tools/testing/selftests/x86/amx.c
index 625e42901237..d884fd69dd51 100644
--- a/tools/testing/selftests/x86/amx.c
+++ b/tools/testing/selftests/x86/amx.c
@@ -14,8 +14,10 @@
 #include <sys/auxv.h>
 #include <sys/mman.h>
 #include <sys/shm.h>
+#include <sys/ptrace.h>
 #include <sys/syscall.h>
 #include <sys/wait.h>
+#include <sys/uio.h>
 
 #include "../kselftest.h" /* For __cpuid_count() */
 
@@ -583,6 +585,13 @@ static void test_dynamic_state(void)
 	_exit(0);
 }
 
+static inline int __compare_tiledata_state(struct xsave_buffer *xbuf1, struct xsave_buffer *xbuf2)
+{
+	return memcmp(&xbuf1->bytes[xtiledata.xbuf_offset],
+		      &xbuf2->bytes[xtiledata.xbuf_offset],
+		      xtiledata.size);
+}
+
 /*
  * Save current register state and compare it to @xbuf1.'
  *
@@ -599,9 +608,7 @@ static inline bool __validate_tiledata_regs(struct xsave_buffer *xbuf1)
 		fatal_error("failed to allocate XSAVE buffer\n");
 
 	xsave(xbuf2, XFEATURE_MASK_XTILEDATA);
-	ret = memcmp(&xbuf1->bytes[xtiledata.xbuf_offset],
-		     &xbuf2->bytes[xtiledata.xbuf_offset],
-		     xtiledata.size);
+	ret = __compare_tiledata_state(xbuf1, xbuf2);
 
 	free(xbuf2);
 
@@ -826,6 +833,99 @@ static void test_context_switch(void)
 	free(finfo);
 }
 
+/* Ptrace test */
+
+/*
+ * Make sure the ptracee has the expanded kernel buffer on the first
+ * use. Then, initialize the state before performing the state
+ * injection from the ptracer.
+ */
+static inline void ptracee_firstuse_tiledata(void)
+{
+	load_rand_tiledata(stashed_xsave);
+	init_xtiledata();
+}
+
+/*
+ * Ptracer injects the randomized tile data state. It also reads
+ * before and after that, which will execute the kernel's state copy
+ * functions. So, the tester is advised to double-check any emitted
+ * kernel messages.
+ */
+static void ptracer_inject_tiledata(pid_t target)
+{
+	struct xsave_buffer *xbuf;
+	struct iovec iov;
+
+	xbuf = alloc_xbuf();
+	if (!xbuf)
+		fatal_error("unable to allocate XSAVE buffer");
+
+	printf("\tRead the init'ed tiledata via ptrace().\n");
+
+	iov.iov_base = xbuf;
+	iov.iov_len = xbuf_size;
+
+	memset(stashed_xsave, 0, xbuf_size);
+
+	if (ptrace(PTRACE_GETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov))
+		fatal_error("PTRACE_GETREGSET");
+
+	if (!__compare_tiledata_state(stashed_xsave, xbuf))
+		printf("[OK]\tThe init'ed tiledata was read from ptracee.\n");
+	else
+		printf("[FAIL]\tThe init'ed tiledata was not read from ptracee.\n");
+
+	printf("\tInject tiledata via ptrace().\n");
+
+	load_rand_tiledata(xbuf);
+
+	memcpy(&stashed_xsave->bytes[xtiledata.xbuf_offset],
+	       &xbuf->bytes[xtiledata.xbuf_offset],
+	       xtiledata.size);
+
+	if (ptrace(PTRACE_SETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov))
+		fatal_error("PTRACE_SETREGSET");
+
+	if (ptrace(PTRACE_GETREGSET, target, (uint32_t)NT_X86_XSTATE, &iov))
+		fatal_error("PTRACE_GETREGSET");
+
+	if (!__compare_tiledata_state(stashed_xsave, xbuf))
+		printf("[OK]\tTiledata was correctly written to ptracee.\n");
+	else
+		printf("[FAIL]\tTiledata was not correctly written to ptracee.\n");
+}
+
+static void test_ptrace(void)
+{
+	pid_t child;
+	int status;
+
+	child = fork();
+	if (child < 0) {
+		err(1, "fork");
+	} else if (!child) {
+		if (ptrace(PTRACE_TRACEME, 0, NULL, NULL))
+			err(1, "PTRACE_TRACEME");
+
+		ptracee_firstuse_tiledata();
+
+		raise(SIGTRAP);
+		_exit(0);
+	}
+
+	do {
+		wait(&status);
+	} while (WSTOPSIG(status) != SIGTRAP);
+
+	ptracer_inject_tiledata(child);
+
+	ptrace(PTRACE_DETACH, child, NULL, NULL);
+	wait(&status);
+	if (!WIFEXITED(status) || WEXITSTATUS(status))
+		err(1, "ptrace test");
+}
+
 int main(void)
 {
 	/* Check hardware availability at first */
@@ -846,6 +946,8 @@ int main(void)
 	ctxtswtest_config.num_threads = 5;
 	test_context_switch();
 
+	test_ptrace();
+
 	clearhandler(SIGILL);
 	free_stashed_xsave();
 
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index 67e9f9df3a8c..3de10dbb50f5 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -860,6 +860,114 @@ static void test_stream_poll_rcvlowat_client(const struct test_opts *opts)
 	close(fd);
 }
 
+#define INV_BUF_TEST_DATA_LEN 512
+
+static void test_inv_buf_client(const struct test_opts *opts, bool stream)
+{
+	unsigned char data[INV_BUF_TEST_DATA_LEN] = {0};
+	ssize_t ret;
+	int fd;
+
+	if (stream)
+		fd = vsock_stream_connect(opts->peer_cid, 1234);
+	else
+		fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
+
+	if (fd < 0) {
+		perror("connect");
+		exit(EXIT_FAILURE);
+	}
+
+	control_expectln("SENDDONE");
+
+	/* Use invalid buffer here. */
+	ret = recv(fd, NULL, sizeof(data), 0);
+	if (ret != -1) {
+		fprintf(stderr, "expected recv(2) failure, got %zi\n", ret);
+		exit(EXIT_FAILURE);
+	}
+
+	if (errno != ENOMEM) {
+		fprintf(stderr, "unexpected recv(2) errno %d\n", errno);
+		exit(EXIT_FAILURE);
+	}
+
+	ret = recv(fd, data, sizeof(data), MSG_DONTWAIT);
+
+	if (stream) {
+		/* For SOCK_STREAM we must continue reading. */
+		if (ret != sizeof(data)) {
+			fprintf(stderr, "expected recv(2) success, got %zi\n", ret);
+			exit(EXIT_FAILURE);
+		}
+		/* Don't check errno in case of success. */
+	} else {
+		/* For SOCK_SEQPACKET socket's queue must be empty. */
+		if (ret != -1) {
+			fprintf(stderr, "expected recv(2) failure, got %zi\n", ret);
+			exit(EXIT_FAILURE);
+		}
+
+		if (errno != EAGAIN) {
+			fprintf(stderr, "unexpected recv(2) errno %d\n", errno);
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	control_writeln("DONE");
+
+	close(fd);
+}
+
+static void test_inv_buf_server(const struct test_opts *opts, bool stream)
+{
+	unsigned char data[INV_BUF_TEST_DATA_LEN] = {0};
+	ssize_t res;
+	int fd;
+
+	if (stream)
+		fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
+	else
+		fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
+
+	if (fd < 0) {
+		perror("accept");
+		exit(EXIT_FAILURE);
+	}
+
+	res = send(fd, data, sizeof(data), 0);
+	if (res != sizeof(data)) {
+		fprintf(stderr, "unexpected send(2) result %zi\n", res);
+		exit(EXIT_FAILURE);
+	}
+
+	control_writeln("SENDDONE");
+
+	control_expectln("DONE");
+
+	close(fd);
+}
+
+static void test_stream_inv_buf_client(const struct test_opts *opts)
+{
+	test_inv_buf_client(opts, true);
+}
+
+static void test_stream_inv_buf_server(const struct test_opts *opts)
+{
+	test_inv_buf_server(opts, true);
+}
+
+static void test_seqpacket_inv_buf_client(const struct test_opts *opts)
+{
+	test_inv_buf_client(opts, false);
+}
+
+static void test_seqpacket_inv_buf_server(const struct test_opts *opts)
+{
+	test_inv_buf_server(opts, false);
+}
+
 static struct test_case test_cases[] = {
 	{
 		.name = "SOCK_STREAM connection reset",
@@ -920,6 +1028,16 @@ static struct test_case test_cases[] = {
 		.run_client = test_seqpacket_bigmsg_client,
 		.run_server = test_seqpacket_bigmsg_server,
 	},
+	{
+		.name = "SOCK_STREAM test invalid buffer",
+		.run_client = test_stream_inv_buf_client,
+		.run_server = test_stream_inv_buf_server,
+	},
+	{
+		.name = "SOCK_SEQPACKET test invalid buffer",
+		.run_client = test_seqpacket_inv_buf_client,
+		.run_server = test_seqpacket_inv_buf_server,
+	},
 	{},
 };
 
diff --git a/tools/virtio/.gitignore b/tools/virtio/.gitignore
index 075588c4da08..9934d48d9a55 100644
--- a/tools/virtio/.gitignore
+++ b/tools/virtio/.gitignore
@@ -2,3 +2,4 @@
 *.d
 virtio_test
 vringh_test
+virtio-trace/trace-agent