13825 Commits

Author SHA1 Message Date
Xabier Marquiegui
26285e689c ptp: add testptp mask test
Add option to test timestamp event queue mask manipulation in testptp.

Option -F allows the user to specify a single channel that will be
applied on the mask filter via IOCTL.

The test program will maintain the file open until user input is
received.

This allows checking the effect of the IOCTL in debugfs.

eg:

Console 1:
```
Channel 12 exclusively enabled. Check on debugfs.
Press any key to continue
```

Console 2:
```
0x00000000 0x00000001 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000
```

Signed-off-by: Xabier Marquiegui <reibax@gmail.com>
Suggested-by: Richard Cochran <richardcochran@gmail.com>
Suggested-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 20:07:52 +01:00
Xabier Marquiegui
403376ddb4 ptp: add debugfs interface to see applied channel masks
Use debugfs to be able to view channel mask applied to every timestamp
event queue.

Every time the device is opened, a new entry is created in
`$DEBUGFS_MOUNTPOINT/ptpN/$INSTANCE_ADDRESS/mask`.

The mask value can be viewed grouped in 32bit decimal values using cat,
or converted to hexadecimal with the included `ptpchmaskfmt.sh` script.
32 bit values are listed from least significant to most significant.

Signed-off-by: Xabier Marquiegui <reibax@gmail.com>
Suggested-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 20:07:52 +01:00
Aaron Conole
8eff0e0622 selftests: openvswitch: Fix the ct_tuple for v4
The ct_tuple v4 data structure decode / encode routines were using
the v6 IP address decode and relying on default encode. This could
cause exceptions during encode / decode depending on how a ct4
tuple would appear in a netlink message.

Caught during code review.

Fixes: e52b07aa1a54 ("selftests: openvswitch: add flow dump support")
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 20:02:51 +01:00
Aaron Conole
76035fd12c selftests: openvswitch: Skip drop testing on older kernels
Kernels that don't have support for openvswitch drop reasons also
won't have the drop counter reasons, so we should skip the test
completely.  It previously wasn't possible to build a test case
for this without polluting the datapath, so we introduce a mechanism
to clear all the flows from a datapath allowing us to test for
explicit drop actions, and then clear the flows to build the
original test case.

Fixes: 4242029164d6 ("selftests: openvswitch: add explicit drop testcase")
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 20:02:51 +01:00
Aaron Conole
af846afad5 selftests: openvswitch: Catch cases where the tests are killed
In case of fatal signal, or early abort at least cleanup the current
test case.

Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite")
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 20:02:51 +01:00
Aaron Conole
92e37f20f2 selftests: openvswitch: Add version check for pyroute2
Paolo Abeni reports that on some systems the pyroute2 version isn't
new enough to run the test suite.  Ensure that we support a minimum
version of 0.6 for all cases (which does include the existing ones).
The 0.6.1 version was released in May of 2021, so should be
propagated to most installations at this point.

The alternative that Paolo proposed was to only skip when the
add-flow is being run.  This would be okay for most cases, except
if a future test case is added that needs to do flow dump without
an associated add (just guessing).  In that case, it could also be
broken and we would need additional skip logic anyway.  Just draw
a line in the sand now.

Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Closes: https://lore.kernel.org/lkml/8470c431e0930d2ea204a9363a60937289b7fdbe.camel@redhat.com/
Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 20:02:51 +01:00
Paolo Bonzini
2b3f2325e7 KVM selftests fixes for 6.6:
- Play nice with %llx when formatting guest printf and assert statements.
 
  - Clean up stale test metadata.
 
  - Zero-initialize structures in memslot perf test to workaround a suspected
    "may be used uninitialized" false positives from GCC.
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Merge tag 'kvm-x86-selftests-6.6-fixes' of https://github.com/kvm-x86/linux into HEAD

KVM selftests fixes for 6.6:

 - Play nice with %llx when formatting guest printf and assert statements.

 - Clean up stale test metadata.

 - Zero-initialize structures in memslot perf test to workaround a suspected
   "may be used uninitialized" false positives from GCC.
2023-10-15 08:25:18 -04:00
Arseniy Krasnov
8d211285c6 test/vsock: io_uring rx/tx tests
This adds set of tests which use io_uring for rx/tx. This test suite is
implemented as separated util like 'vsock_test' and has the same set of
input arguments as 'vsock_test'. These tests only cover cases of data
transmission (no connect/bind/accept etc).

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 13:19:43 +01:00
Arseniy Krasnov
e846d679ad test/vsock: MSG_ZEROCOPY support for vsock_perf
To use this option pass '--zerocopy' parameter:

./vsock_perf --zerocopy --sender <cid> ...

With this option MSG_ZEROCOPY flag will be passed to the 'send()' call.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 13:19:42 +01:00
Arseniy Krasnov
bc36442ef3 test/vsock: MSG_ZEROCOPY flag tests
This adds three tests for MSG_ZEROCOPY feature:
1) SOCK_STREAM tx with different buffers.
2) SOCK_SEQPACKET tx with different buffers.
3) SOCK_STREAM test to read empty error queue of the socket.

Patch also works as preparation for the next patches for tools in this
patchset: vsock_perf and vsock_uring_test:
1) Adds several new functions to util.c - they will be also used by
   vsock_uring_test.
2) Adds two new functions for MSG_ZEROCOPY handling to a new source
   file - such source will be shared between vsock_test, vsock_perf and
   vsock_uring_test, thus avoiding code copy-pasting.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15 13:19:42 +01:00
Dave Marchevsky
e0e1a7a5fc selftests/bpf: Add tests for open-coded task_vma iter
The open-coded task_vma iter added earlier in this series allows for
natural iteration over a task's vmas using existing open-coded iter
infrastructure, specifically bpf_for_each.

This patch adds a test demonstrating this pattern and validating
correctness. The vma->vm_start and vma->vm_end addresses of the first
1000 vmas are recorded and compared to /proc/PID/maps output. As
expected, both see the same vmas and addresses - with the exception of
the [vsyscall] vma - which is explained in a comment in the prog_tests
program.

Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231013204426.1074286-5-davemarchevsky@fb.com
2023-10-13 15:48:58 -07:00
Dave Marchevsky
45b38941c8 selftests/bpf: Rename bpf_iter_task_vma.c to bpf_iter_task_vmas.c
Further patches in this series will add a struct bpf_iter_task_vma,
which will result in a name collision with the selftest prog renamed in
this patch. Rename the selftest to avoid the collision.

Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231013204426.1074286-3-davemarchevsky@fb.com
2023-10-13 15:48:58 -07:00
Ido Schimmel
aa13e5241a selftests: fib_tests: Count all trace point invocations
The tests rely on the IPv{4,6} FIB trace points being triggered once for
each forwarded packet. If receive processing is deferred to the
ksoftirqd task these invocations will not be counted and the tests will
fail. Fix by specifying the '-a' flag to avoid perf from filtering on
the mausezahn task.

Before:

 # ./fib_tests.sh -t ipv4_mpath_list

 IPv4 multipath list receive tests
     TEST: Multipath route hit ratio (.68)                               [FAIL]

 # ./fib_tests.sh -t ipv6_mpath_list

 IPv6 multipath list receive tests
     TEST: Multipath route hit ratio (.27)                               [FAIL]

After:

 # ./fib_tests.sh -t ipv4_mpath_list

 IPv4 multipath list receive tests
     TEST: Multipath route hit ratio (1.00)                              [ OK ]

 # ./fib_tests.sh -t ipv6_mpath_list

 IPv6 multipath list receive tests
     TEST: Multipath route hit ratio (.99)                               [ OK ]

Fixes: 8ae9efb859c0 ("selftests: fib_tests: Add multipath list receive tests")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/netdev/202309191658.c00d8b8-oliver.sang@intel.com/
Tested-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Tested-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Link: https://lore.kernel.org/r/20231010132113.3014691-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-13 14:28:22 -07:00
Ido Schimmel
dbb13378ba selftests: fib_tests: Disable RP filter in multipath list receive test
The test relies on the fib:fib_table_lookup trace point being triggered
once for each forwarded packet. If RP filter is not disabled, the trace
point will be triggered twice for each packet (for source validation and
forwarding), potentially masking actual bugs. Fix by explicitly
disabling RP filter.

Before:

 # ./fib_tests.sh -t ipv4_mpath_list

 IPv4 multipath list receive tests
     TEST: Multipath route hit ratio (1.99)                              [ OK ]

After:

 # ./fib_tests.sh -t ipv4_mpath_list

 IPv4 multipath list receive tests
     TEST: Multipath route hit ratio (.99)                               [ OK ]

Fixes: 8ae9efb859c0 ("selftests: fib_tests: Add multipath list receive tests")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/netdev/202309191658.c00d8b8-oliver.sang@intel.com/
Tested-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Tested-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Link: https://lore.kernel.org/r/20231010132113.3014691-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-13 14:28:22 -07:00
Artem Savkov
ba8ea72388 bpf: Change syscall_nr type to int in struct syscall_tp_t
linux-rt-devel tree contains a patch (b1773eac3f29c ("sched: Add support
for lazy preemption")) that adds an extra member to struct trace_entry.
This causes the offset of args field in struct trace_event_raw_sys_enter
be different from the one in struct syscall_trace_enter:

struct trace_event_raw_sys_enter {
        struct trace_entry         ent;                  /*     0    12 */

        /* XXX last struct has 3 bytes of padding */
        /* XXX 4 bytes hole, try to pack */

        long int                   id;                   /*    16     8 */
        long unsigned int          args[6];              /*    24    48 */
        /* --- cacheline 1 boundary (64 bytes) was 8 bytes ago --- */
        char                       __data[];             /*    72     0 */

        /* size: 72, cachelines: 2, members: 4 */
        /* sum members: 68, holes: 1, sum holes: 4 */
        /* paddings: 1, sum paddings: 3 */
        /* last cacheline: 8 bytes */
};

struct syscall_trace_enter {
        struct trace_entry         ent;                  /*     0    12 */

        /* XXX last struct has 3 bytes of padding */

        int                        nr;                   /*    12     4 */
        long unsigned int          args[];               /*    16     0 */

        /* size: 16, cachelines: 1, members: 3 */
        /* paddings: 1, sum paddings: 3 */
        /* last cacheline: 16 bytes */
};

This, in turn, causes perf_event_set_bpf_prog() fail while running bpf
test_profiler testcase because max_ctx_offset is calculated based on the
former struct, while off on the latter:

  10488         if (is_tracepoint || is_syscall_tp) {
  10489                 int off = trace_event_get_offsets(event->tp_event);
  10490
  10491                 if (prog->aux->max_ctx_offset > off)
  10492                         return -EACCES;
  10493         }

What bpf program is actually getting is a pointer to struct
syscall_tp_t, defined in kernel/trace/trace_syscalls.c. This patch fixes
the problem by aligning struct syscall_tp_t with struct
syscall_trace_(enter|exit) and changing the tests to use these structs
to dereference context.

Signed-off-by: Artem Savkov <asavkov@redhat.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/bpf/20231013054219.172920-1-asavkov@redhat.com
2023-10-13 12:39:36 -07:00
Linus Torvalds
b82fbd8f39 RISC-V Fixes for 6.6-rc6
* A handful of build fixes.
 * A fix to avoid mixing up user/kernel-mode breakpoints, which can
   manifest as a hang when mixing k/uprobes with other breakpoint
   sources.
 * A fix to avoid double-allocting crash kernel memory.
 * A fix for tracefs syscall name mangling, which was causing syscalls
   not to show up in tracefs.
 * A fix to the perf driver to enable the hw events when selected, which
   can trigger a BUG on some userspace access patterns.
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Merge tag 'riscv-for-linus-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A handful of build fixes

 - A fix to avoid mixing up user/kernel-mode breakpoints, which can
   manifest as a hang when mixing k/uprobes with other breakpoint
   sources

 - A fix to avoid double-allocting crash kernel memory

 - A fix for tracefs syscall name mangling, which was causing syscalls
   not to show up in tracefs

 - A fix to the perf driver to enable the hw events when selected, which
   can trigger a BUG on some userspace access patterns

* tag 'riscv-for-linus-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  drivers: perf: Fix panic in riscv SBI mmap support
  riscv: Fix ftrace syscall handling which are now prefixed with __riscv_
  RISC-V: Fix wrong use of CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
  riscv: kdump: fix crashkernel reserving problem on RISC-V
  riscv: Remove duplicate objcopy flag
  riscv: signal: fix sigaltstack frame size checking
  riscv: errata: andes: Makefile: Fix randconfig build issue
  riscv: Only consider swbp/ss handlers for correct privileged mode
  riscv: kselftests: Fix mm build by removing testcases subdirectory
2023-10-13 09:17:48 -07:00
Jiri Pirko
6151ff9c75 selftests: netdevsim: use suitable existing dummy file for flash test
The file name used in flash test was "dummy" because at the time test
was written, drivers were responsible for file request and as netdevsim
didn't do that, name was unused. However, the file load request is
now done in devlink code and therefore the file has to exist.
Use first random file from /lib/firmware for this purpose.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-13 10:43:13 +01:00
Amit Cohen
f826f2a2ee selftests: fdb_flush: Add test cases for FDB flush with bridge device
Extend the test to check flushing with bridge device, test flush by device
and by VID.

Add test case for flushing with "self" and "master" and attributes that are
supported only in one driver, this is unrecommended configuration, check it
to verify that user gets an error.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-13 10:00:32 +01:00
Amit Cohen
96eece6933 selftests: Add test cases for FDB flush with VXLAN device
Test all the supported arguments for FDB flush. The test checks
configuration, not traffic. Note that the flag 'offloaded' is not checked
as it is not relevant when there is no hardware.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-13 10:00:32 +01:00
Jakub Kicinski
0e6bb5b7f4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

kernel/bpf/verifier.c
  829955981c55 ("bpf: Fix verifier log for async callback return values")
  a923819fb2c5 ("bpf: Treat first argument as return value for bpf_throw")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-12 17:07:34 -07:00
Sean Christopherson
87e3ca055c KVM: selftests: Force load all supported XSAVE state in state test
Extend x86's state to forcefully load *all* host-supported xfeatures by
modifying xstate_bv in the saved state.  Stuffing xstate_bv ensures that
the selftest is verifying KVM's full ABI regardless of whether or not the
guest code is successful in getting various xfeatures out of their INIT
state, e.g. see the disaster that is/was MPX.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230928001956.924301-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-10-12 11:08:59 -04:00
Sean Christopherson
7770982078 KVM: selftests: Load XSAVE state into untouched vCPU during state test
Expand x86's state test to load XSAVE state into a "dummy" vCPU prior to
KVM_SET_CPUID2, and again with an empty guest CPUID model.  Except for
off-by-default features, i.e. AMX, KVM's ABI for KVM_SET_XSAVE is that
userspace is allowed to load xfeatures so long as they are supported by
the host.  This is a regression test for a combination of KVM bugs where
the state saved by KVM_GET_XSAVE{2} could not be loaded via KVM_SET_XSAVE
if the saved xstate_bv would load guest-unsupported xfeatures.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230928001956.924301-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-10-12 11:08:59 -04:00
Sean Christopherson
60d351f18f KVM: selftests: Touch relevant XSAVE state in guest for state test
Modify support XSAVE state in the "state test's" guest code so that saving
and loading state via KVM_{G,S}ET_XSAVE actually does something useful,
i.e. so that xstate_bv in XSAVE state isn't empty.

Punt on BNDCSR for now, it's easier to just stuff that xfeature from the
host side.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230928001956.924301-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-10-12 11:08:58 -04:00
Daan De Meyer
82ab6b505e selftests/bpf: Add tests for cgroup unix socket address hooks
These selftests are written in prog_tests style instead of adding
them to the existing test_sock_addr tests. Migrating the existing
sock addr tests to prog_tests style is left for future work. This
commit adds support for testing bind() sockaddr hooks, even though
there's no unix socket sockaddr hook for bind(). We leave this code
intact for when the INET and INET6 tests are migrated in the future
which do support intercepting bind().

Signed-off-by: Daan De Meyer <daan.j.demeyer@gmail.com>
Link: https://lore.kernel.org/r/20231011185113.140426-10-daan.j.demeyer@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-11 17:27:55 -07:00
Daan De Meyer
af2752ed45 selftests/bpf: Make sure mount directory exists
The mount directory for the selftests cgroup tree might
not exist so let's make sure it does exist by creating
it ourselves if it doesn't exist.

Signed-off-by: Daan De Meyer <daan.j.demeyer@gmail.com>
Link: https://lore.kernel.org/r/20231011185113.140426-9-daan.j.demeyer@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-11 17:27:55 -07:00
Daan De Meyer
feba7b634e selftests/bpf: Add missing section name tests for getpeername/getsockname
These were missed when these hooks were first added so add them now
instead to make sure every sockaddr hook has a matching section name
test.

Signed-off-by: Daan De Meyer <daan.j.demeyer@gmail.com>
Link: https://lore.kernel.org/r/20231011185113.140426-2-daan.j.demeyer@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-11 13:24:18 -07:00
Martynas Pumputis
b0f7a8ca11 selftests/bpf: Add BPF_FIB_LOOKUP_SRC tests
This patch extends the existing fib_lookup test suite by adding two test
cases (for each IP family):

* Test source IP selection from the egressing netdev.
* Test source IP selection when an IP route has a preferred src IP addr.

Signed-off-by: Martynas Pumputis <m@lambda.lt>
Link: https://lore.kernel.org/r/20231007081415.33502-3-m@lambda.lt
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-09 16:28:37 -07:00
David Vernet
57ddeb86b3 selftests/bpf: Add testcase for async callback return value failure
A previous commit updated the verifier to print an accurate failure
message for when someone specifies a nonzero return value from an async
callback. This adds a testcase for validating that the verifier emits
the correct message in such a case.

Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20231009161414.235829-2-void@manifault.com
2023-10-09 23:11:17 +02:00
David Vernet
0d7ae06860 selftests/bpf: Test pinning bpf timer to a core
Now that we support pinning a BPF timer to the current core, we should
test it with some selftests. This patch adds two new testcases to the
timer suite, which verifies that a BPF timer both with and without
BPF_F_TIMER_ABS, can be pinned to the calling core with BPF_F_TIMER_CPU_PIN.

Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/bpf/20231004162339.200702-3-void@manifault.com
2023-10-09 16:29:06 +02:00
Daniel Borkmann
37345b8535 selftests/bpf: Make seen_tc* variable tests more robust
Martin reported that on his local dev machine the test_tc_chain_mixed() fails as
"test_tc_chain_mixed:FAIL:seen_tc5 unexpected seen_tc5: actual 1 != expected 0"
and others occasionally, too.

However, when running in a more isolated setup (qemu in particular), it works fine
for him. The reason is that there is a small race-window where seen_tc* could turn
into true for various test cases when there is background traffic, e.g. after the
asserts they often get reset. In such case when subsequent detach takes place,
unrelated background traffic could have already flipped the bool to true beforehand.

Add a small helper tc_skel_reset_all_seen() to reset all bools before we do the ping
test. At this point, everything is set up as expected and therefore no race can occur.
All tc_{opts,links} tests continue to pass after this change.

Reported-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20231006220655.1653-7-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-06 17:11:21 -07:00
Daniel Borkmann
685446b062 selftests/bpf: Test query on empty mprog and pass revision into attach
Add a new test case to query on an empty bpf_mprog and pass the revision
directly into expected_revision for attachment to assert that this does
succeed.

  ./test_progs -t tc_opts
  [    1.406778] tsc: Refined TSC clocksource calibration: 3407.990 MHz
  [    1.408863] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fcaf6eb0, max_idle_ns: 440795321766 ns
  [    1.412419] clocksource: Switched to clocksource tsc
  [    1.428671] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.430260] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  #252     tc_opts_after:OK
  #253     tc_opts_append:OK
  #254     tc_opts_basic:OK
  #255     tc_opts_before:OK
  #256     tc_opts_chain_classic:OK
  #257     tc_opts_chain_mixed:OK
  #258     tc_opts_delete_empty:OK
  #259     tc_opts_demixed:OK
  #260     tc_opts_detach:OK
  #261     tc_opts_detach_after:OK
  #262     tc_opts_detach_before:OK
  #263     tc_opts_dev_cleanup:OK
  #264     tc_opts_invalid:OK
  #265     tc_opts_max:OK
  #266     tc_opts_mixed:OK
  #267     tc_opts_prepend:OK
  #268     tc_opts_query:OK
  #269     tc_opts_query_attach:OK     <--- (new test)
  #270     tc_opts_replace:OK
  #271     tc_opts_revision:OK
  Summary: 20/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20231006220655.1653-6-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-06 17:11:21 -07:00
Daniel Borkmann
b77368269d selftests/bpf: Adapt assert_mprog_count to always expect 0 count
Simplify __assert_mprog_count() to remove the -ENOENT corner case as the
bpf_prog_query() now returns 0 when no bpf_mprog is attached. This also
allows to convert a few test cases from using raw __assert_mprog_count()
over to plain assert_mprog_count() helper.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20231006220655.1653-5-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-06 17:11:21 -07:00
Daniel Borkmann
f9b08790fa selftests/bpf: Test bpf_mprog query API via libbpf and raw syscall
Add a new test case which performs double query of the bpf_mprog through
libbpf API, but also via raw bpf(2) syscall. This is testing to gather
first the count and then in a subsequent probe the full information with
the program array without clearing passed structs in between.

  # ./vmtest.sh -- ./test_progs -t tc_opts
  [...]
  ./test_progs -t tc_opts
  [    1.398818] tsc: Refined TSC clocksource calibration: 3407.999 MHz
  [    1.400263] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fd336761, max_idle_ns: 440795243819 ns
  [    1.402734] clocksource: Switched to clocksource tsc
  [    1.426639] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.428112] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  #252     tc_opts_after:OK
  #253     tc_opts_append:OK
  #254     tc_opts_basic:OK
  #255     tc_opts_before:OK
  #256     tc_opts_chain_classic:OK
  #257     tc_opts_chain_mixed:OK
  #258     tc_opts_delete_empty:OK
  #259     tc_opts_demixed:OK
  #260     tc_opts_detach:OK
  #261     tc_opts_detach_after:OK
  #262     tc_opts_detach_before:OK
  #263     tc_opts_dev_cleanup:OK
  #264     tc_opts_invalid:OK
  #265     tc_opts_max:OK
  #266     tc_opts_mixed:OK
  #267     tc_opts_prepend:OK
  #268     tc_opts_query:OK            <--- (new test)
  #269     tc_opts_replace:OK
  #270     tc_opts_revision:OK
  Summary: 19/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20231006220655.1653-4-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-06 17:11:21 -07:00
Geliang Tang
fdd11c14c3 selftests/bpf: Add pairs_redir_to_connected helper
Extract duplicate code from these four functions

 unix_redir_to_connected()
 udp_redir_to_connected()
 inet_unix_redir_to_connected()
 unix_inet_redir_to_connected()

to generate a new helper pairs_redir_to_connected(). Create the
different socketpairs in these four functions, then pass the
socketpairs info to the new common helper to do the connections.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Link: https://lore.kernel.org/r/54bb28dcf764e7d4227ab160883931d2173f4f3d.1696588133.git.geliang.tang@suse.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-06 11:25:22 -07:00
Andrii Nakryiko
0af3aace5b selftests/bpf: Don't truncate #test/subtest field
We currently expect up to a three-digit number of tests and subtests, so:

  #999/999: some_test/some_subtest: ...

Is the largest test/subtest we can see. If we happen to cross into
1000s, current logic will just truncate everything after 7th character.
This patch fixes this truncate and allows to go way higher (up to 31
characters in total). We still nicely align test numbers:

  #60/66   core_reloc_btfgen/type_based___incompat:OK
  #60/67   core_reloc_btfgen/type_based___fn_wrong_args:OK
  #60/68   core_reloc_btfgen/type_id:OK
  #60/69   core_reloc_btfgen/type_id___missing_targets:OK
  #60/70   core_reloc_btfgen/enumval:OK

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20231006175744.3136675-3-andrii@kernel.org
2023-10-06 20:17:28 +02:00
Andrii Nakryiko
46475cc0dd selftests/bpf: Support building selftests in optimized -O2 mode
Add support for building selftests with -O2 level of optimization, which
allows more compiler warnings detection (like lots of potentially
uninitialized usage), but also is useful to have a faster-running test
for some CPU-intensive tests.

One can build optimized versions of libbpf and selftests by running:

  $ make RELEASE=1

There is a measurable speed up of about 10 seconds for me locally,
though it's mostly capped by non-parallelized serial tests. User CPU
time goes down by total 40 seconds, from 1m10s to 0m28s.

Unoptimized build (-O0)
=======================
Summary: 430/3544 PASSED, 25 SKIPPED, 4 FAILED

real    1m59.937s
user    1m10.877s
sys     3m14.880s

Optimized build (-O2)
=====================
Summary: 425/3543 PASSED, 25 SKIPPED, 9 FAILED

real    1m50.540s
user    0m28.406s
sys     3m13.198s

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20231006175744.3136675-2-andrii@kernel.org
2023-10-06 20:17:28 +02:00
Andrii Nakryiko
925a01577e selftests/bpf: Fix compiler warnings reported in -O2 mode
Fix a bunch of potentially unitialized variable usage warnings that are
reported by GCC in -O2 mode. Also silence overzealous stringop-truncation
class of warnings.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20231006175744.3136675-1-andrii@kernel.org
2023-10-06 20:17:28 +02:00
Geliang Tang
d549854bc5 selftests/bpf: Enable CONFIG_VSOCKETS in config
CONFIG_VSOCKETS is required by BPF selftests, otherwise we get errors
like this:

    ./test_progs:socket_loopback_reuseport:386: socket:
		Address family not supported by protocol
    socket_loopback_reuseport:FAIL:386
    ./test_progs:vsock_unix_redir_connectible:1496:
		vsock_socketpair_connectible() failed
    vsock_unix_redir_connectible:FAIL:1496

So this patch enables it in tools/testing/selftests/bpf/config.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Link: https://lore.kernel.org/r/472e73d285db2ea59aca9bbb95eb5d4048327588.1696490003.git.geliang.tang@suse.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-10-05 21:41:07 -07:00
Sean Christopherson
6313e096db KVM: selftests: Zero-initialize entire test_result in memslot perf test
Zero-initialize the entire test_result structure used by memslot_perf_test
instead of zeroing only the fields used to guard the pr_info() calls.

gcc 13.2.0 is a bit overzealous and incorrectly thinks that rbestslottime's
slot_runtime may be used uninitialized.

  In file included from memslot_perf_test.c:25:
  memslot_perf_test.c: In function ‘main’:
  include/test_util.h:31:22: error: ‘rbestslottime.slot_runtime.tv_nsec’ may be used uninitialized [-Werror=maybe-uninitialized]
     31 | #define pr_info(...) printf(__VA_ARGS__)
        |                      ^~~~~~~~~~~~~~~~~~~
  memslot_perf_test.c:1127:17: note: in expansion of macro ‘pr_info’
   1127 |                 pr_info("Best slot setup time for the whole test area was %ld.%.9lds\n",
        |                 ^~~~~~~
  memslot_perf_test.c:1092:28: note: ‘rbestslottime.slot_runtime.tv_nsec’ was declared here
   1092 |         struct test_result rbestslottime;
        |                            ^~~~~~~~~~~~~
  include/test_util.h:31:22: error: ‘rbestslottime.slot_runtime.tv_sec’ may be used uninitialized [-Werror=maybe-uninitialized]
     31 | #define pr_info(...) printf(__VA_ARGS__)
        |                      ^~~~~~~~~~~~~~~~~~~
  memslot_perf_test.c:1127:17: note: in expansion of macro ‘pr_info’
   1127 |                 pr_info("Best slot setup time for the whole test area was %ld.%.9lds\n",
        |                 ^~~~~~~
  memslot_perf_test.c:1092:28: note: ‘rbestslottime.slot_runtime.tv_sec’ was declared here
   1092 |         struct test_result rbestslottime;
        |                            ^~~~~~~~~~~~~

That can't actually happen, at least not without the "result" structure in
test_loop() also being used uninitialized, which gcc doesn't complain
about, as writes to rbestslottime are all-or-nothing, i.e. slottimens can't
be non-zero without slot_runtime being written.

	if (!data->mem_size &&
	    (!rbestslottime->slottimens ||
	     result.slottimens < rbestslottime->slottimens))
		*rbestslottime = result;

Zero-initialize the structures to make gcc happy even though this is
likely a compiler bug.  The cost to do so is negligible, both in terms of
code and runtime overhead.  The only downside is that the compiler won't
warn about legitimate usage of "uninitialized" data, e.g. the test could
end up consuming zeros instead of useful data.  However, given that the
test is quite mature and unlikely to see substantial changes, the odds of
introducing such bugs are relatively low, whereas being able to compile
KVM selftests with -Werror detects issues on a regular basis.

Reviewed-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20231005002954.2887098-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2023-10-05 19:23:47 -07:00
Jakub Kicinski
2606cf059c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

No conflicts (or adjacent changes of note).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-05 13:16:47 -07:00
Linus Torvalds
f291209eca Including fixes from Bluetooth, netfilter, BPF and WiFi.
I didn't collect precise data but feels like we've got a lot
 of 6.5 fixes here. WiFi fixes are most user-awaited.
 
 Current release - regressions:
 
  - Bluetooth: fix hci_link_tx_to RCU lock usage
 
 Current release - new code bugs:
 
  - bpf: mprog: fix maximum program check on mprog attachment
 
  - eth: ti: icssg-prueth: fix signedness bug in prueth_init_tx_chns()
 
 Previous releases - regressions:
 
  - ipv6: tcp: add a missing nf_reset_ct() in 3WHS handling
 
  - vringh: don't use vringh_kiov_advance() in vringh_iov_xfer(),
    it doesn't handle zero length like we expected
 
  - wifi:
    - cfg80211: fix cqm_config access race, fix crashes with brcmfmac
    - iwlwifi: mvm: handle PS changes in vif_cfg_changed
    - mac80211: fix mesh id corruption on 32 bit systems
    - mt76: mt76x02: fix MT76x0 external LNA gain handling
 
  - Bluetooth: fix handling of HCI_QUIRK_STRICT_DUPLICATE_FILTER
 
  - l2tp: fix handling of transhdrlen in __ip{,6}_append_data()
 
  - dsa: mv88e6xxx: avoid EEPROM timeout when EEPROM is absent
 
  - eth: stmmac: fix the incorrect parameter after refactoring
 
 Previous releases - always broken:
 
  - net: replace calls to sock->ops->connect() with kernel_connect(),
    prevent address rewrite in kernel_bind(); otherwise BPF hooks may
    modify arguments, unexpectedly to the caller
 
  - tcp: fix delayed ACKs when reads and writes align with MSS
 
  - bpf:
    - verifier: unconditionally reset backtrack_state masks on global
      func exit
    - s390: let arch_prepare_bpf_trampoline return program size,
      fix struct_ops offsets
    - sockmap: fix accounting of available bytes in presence of PEEKs
    - sockmap: reject sk_msg egress redirects to non-TCP sockets
 
  - ipv4/fib: send netlink notify when delete source address routes
 
  - ethtool: plca: fix width of reads when parsing netlink commands
 
  - netfilter: nft_payload: rebuild vlan header on h_proto access
 
  - Bluetooth: hci_codec: fix leaking memory of local_codecs
 
  - eth: intel: ice: always add legacy 32byte RXDID in supported_rxdids
 
  - eth: stmmac:
    - dwmac-stm32: fix resume on STM32 MCU
    - remove buggy and unneeded stmmac_poll_controller, depend on NAPI
 
  - ibmveth: always recompute TCP pseudo-header checksum, fix use
    of the driver with Open vSwitch
 
  - wifi:
    - rtw88: rtw8723d: fix MAC address offset in EEPROM
    - mt76: fix lock dependency problem for wed_lock
    - mwifiex: sanity check data reported by the device
    - iwlwifi: ensure ack flag is properly cleared
    - iwlwifi: mvm: fix a memory corruption due to bad pointer arithm
    - iwlwifi: mvm: fix incorrect usage of scan API
 
 Misc:
 
  - wifi: mac80211: work around Cisco AP 9115 VHT MPDU length
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from Bluetooth, netfilter, BPF and WiFi.

  I didn't collect precise data but feels like we've got a lot of 6.5
  fixes here. WiFi fixes are most user-awaited.

  Current release - regressions:

   - Bluetooth: fix hci_link_tx_to RCU lock usage

  Current release - new code bugs:

   - bpf: mprog: fix maximum program check on mprog attachment

   - eth: ti: icssg-prueth: fix signedness bug in prueth_init_tx_chns()

  Previous releases - regressions:

   - ipv6: tcp: add a missing nf_reset_ct() in 3WHS handling

   - vringh: don't use vringh_kiov_advance() in vringh_iov_xfer(), it
     doesn't handle zero length like we expected

   - wifi:
      - cfg80211: fix cqm_config access race, fix crashes with brcmfmac
      - iwlwifi: mvm: handle PS changes in vif_cfg_changed
      - mac80211: fix mesh id corruption on 32 bit systems
      - mt76: mt76x02: fix MT76x0 external LNA gain handling

   - Bluetooth: fix handling of HCI_QUIRK_STRICT_DUPLICATE_FILTER

   - l2tp: fix handling of transhdrlen in __ip{,6}_append_data()

   - dsa: mv88e6xxx: avoid EEPROM timeout when EEPROM is absent

   - eth: stmmac: fix the incorrect parameter after refactoring

  Previous releases - always broken:

   - net: replace calls to sock->ops->connect() with kernel_connect(),
     prevent address rewrite in kernel_bind(); otherwise BPF hooks may
     modify arguments, unexpectedly to the caller

   - tcp: fix delayed ACKs when reads and writes align with MSS

   - bpf:
      - verifier: unconditionally reset backtrack_state masks on global
        func exit
      - s390: let arch_prepare_bpf_trampoline return program size, fix
        struct_ops offsets
      - sockmap: fix accounting of available bytes in presence of PEEKs
      - sockmap: reject sk_msg egress redirects to non-TCP sockets

   - ipv4/fib: send netlink notify when delete source address routes

   - ethtool: plca: fix width of reads when parsing netlink commands

   - netfilter: nft_payload: rebuild vlan header on h_proto access

   - Bluetooth: hci_codec: fix leaking memory of local_codecs

   - eth: intel: ice: always add legacy 32byte RXDID in supported_rxdids

   - eth: stmmac:
     - dwmac-stm32: fix resume on STM32 MCU
     - remove buggy and unneeded stmmac_poll_controller, depend on NAPI

   - ibmveth: always recompute TCP pseudo-header checksum, fix use of
     the driver with Open vSwitch

   - wifi:
      - rtw88: rtw8723d: fix MAC address offset in EEPROM
      - mt76: fix lock dependency problem for wed_lock
      - mwifiex: sanity check data reported by the device
      - iwlwifi: ensure ack flag is properly cleared
      - iwlwifi: mvm: fix a memory corruption due to bad pointer arithm
      - iwlwifi: mvm: fix incorrect usage of scan API

  Misc:

   - wifi: mac80211: work around Cisco AP 9115 VHT MPDU length"

* tag 'net-6.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits)
  MAINTAINERS: update Matthieu's email address
  mptcp: userspace pm allow creating id 0 subflow
  mptcp: fix delegated action races
  net: stmmac: remove unneeded stmmac_poll_controller
  net: lan743x: also select PHYLIB
  net: ethernet: mediatek: disable irq before schedule napi
  net: mana: Fix oversized sge0 for GSO packets
  net: mana: Fix the tso_bytes calculation
  net: mana: Fix TX CQE error handling
  netlink: annotate data-races around sk->sk_err
  sctp: update hb timer immediately after users change hb_interval
  sctp: update transport state when processing a dupcook packet
  tcp: fix delayed ACKs for MSS boundary condition
  tcp: fix quick-ack counting to count actual ACKs of new data
  page_pool: fix documentation typos
  tipc: fix a potential deadlock on &tx->lock
  net: stmmac: dwmac-stm32: fix resume on STM32 MCU
  ipv4: Set offload_failed flag in fibmatch results
  netfilter: nf_tables: nft_set_rbtree: fix spurious insertion failure
  netfilter: nf_tables: Deduplicate nft_register_obj audit logs
  ...
2023-10-05 11:29:21 -07:00
Jakub Kicinski
c56e67f3ff netfilter pull request 2023-10-04
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Merge tag 'nf-23-10-04' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Florian Westphal says:

====================
netfilter patches for net

First patch resolves a regression with vlan header matching, this was
broken since 6.5 release.  From myself.

Second patch fixes an ancient problem with sctp connection tracking in
case INIT_ACK packets are delayed.  This comes with a selftest, both
patches from Xin Long.

Patch 4 extends the existing nftables audit selftest, from
Phil Sutter.

Patch 5, also from Phil, avoids a situation where nftables
would emit an audit record twice. This was broken since 5.13 days.

Patch 6, from myself, avoids spurious insertion failure if we encounter an
overlapping but expired range during element insertion with the
'nft_set_rbtree' backend. This problem exists since 6.2.

* tag 'nf-23-10-04' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_tables: nft_set_rbtree: fix spurious insertion failure
  netfilter: nf_tables: Deduplicate nft_register_obj audit logs
  selftests: netfilter: Extend nft_audit.sh
  selftests: netfilter: test for sctp collision processing in nf_conntrack
  netfilter: handle the connecting collision properly in nf_conntrack_proto_sctp
  netfilter: nft_payload: rebuild vlan header on h_proto access
====================

Link: https://lore.kernel.org/r/20231004141405.28749-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-04 14:53:17 -07:00
Jakub Kicinski
07cf7974a2 netfilter pull request 2023-09-28
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Merge tag 'nf-next-23-09-28' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next

Florian Westphal says:

====================
netfilter updates for net-next

First patch, from myself, is a bug fix. The issue (connect timeout) is
ancient, so I think its safe to give this more soak time given the esoteric
conditions needed to trigger this.
Also updates the existing selftest to cover this.

Add netlink extacks when an update references a non-existent
table/chain/set.  This allows userspace to provide much better
errors to the user, from Pablo Neira Ayuso.

Last patch adds more policy checks to nf_tables as a better
alternative to the existing runtime checks, from Phil Sutter.

* tag 'nf-next-23-09-28' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: nf_tables: Utilize NLA_POLICY_NESTED_ARRAY
  netfilter: nf_tables: missing extended netlink error in lookup functions
  selftests: netfilter: test nat source port clash resolution interaction with tcp early demux
  netfilter: nf_nat: undo erroneous tcp edemux lookup after port clash
====================

Link: https://lore.kernel.org/r/20230928144916.18339-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-04 14:25:37 -07:00
Björn Töpel
e096ab9d9f selftests/bpf: Add uprobe_multi to gen_tar target
The uprobe_multi program was not picked up for the gen_tar target. Fix
by adding it to TEST_GEN_FILES.

Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20231004122721.54525-4-bjorn@kernel.org
2023-10-04 13:37:41 -07:00
Björn Töpel
72fae63199 selftests/bpf: Enable lld usage for RISC-V
RISC-V has proper lld support. Use that, similar to what x86 does, for
urandom_read et al.

Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231004122721.54525-3-bjorn@kernel.org
2023-10-04 13:37:41 -07:00
Björn Töpel
97a79e502e selftests/bpf: Add cross-build support for urandom_read et al
Some userland programs in the BPF test suite, e.g. urandom_read, is
missing cross-build support. Add cross-build support for these
programs

Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20231004122721.54525-2-bjorn@kernel.org
2023-10-04 13:36:50 -07:00
Björn Töpel
b55b775f03 selftests/bpf: Define SYS_NANOSLEEP_KPROBE_NAME for riscv
Add missing sys_nanosleep name for RISC-V, which is used by some tests
(e.g. attach_probe).

Fixes: 08d0ce30e0e4 ("riscv: Implement syscall wrappers")
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/bpf/20231004110905.49024-4-bjorn@kernel.org
2023-10-04 13:19:44 -07:00
Björn Töpel
0f2692ee43 selftests/bpf: Define SYS_PREFIX for riscv
SYS_PREFIX was missing for a RISC-V, which made a couple of kprobe
tests fail.

Add missing SYS_PREFIX for RISC-V.

Fixes: 08d0ce30e0e4 ("riscv: Implement syscall wrappers")
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/bpf/20231004110905.49024-3-bjorn@kernel.org
2023-10-04 13:19:39 -07:00
Like Xu
332c4d90a0 KVM: selftests: Remove obsolete and incorrect test case metadata
Delete inaccurate descriptions and obsolete metadata for test cases.
It adds zero value, and has a non-zero chance of becoming stale and
misleading in the future. No functional changes intended.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Like Xu <likexu@tencent.com>
Link: https://lore.kernel.org/r/20230914094803.94661-1-likexu@tencent.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2023-10-04 12:53:05 -07:00
Sean Christopherson
b15e7490a1 KVM: selftests: Treat %llx like %lx when formatting guest printf
Treat %ll* formats the same as %l* formats when processing printfs from
the guest so that using e.g. %llx instead of %lx generates the expected
output.  Ideally, unexpected formats would generate compile-time warnings
or errors, but it's not at all obvious how to actually accomplish that.

Alternatively, guest_vsnprintf() could assert on an unexpected format,
but since the vast majority of printfs are for failed guest asserts,
getting *something* printed is better than nothing.

E.g. before

 ==== Test Assertion Failure ====
  x86_64/private_mem_conversions_test.c:265: mem[i] == 0
  pid=4286 tid=4290 errno=4 - Interrupted system call
     1	0x0000000000401c74: __test_mem_conversions at private_mem_conversions_test.c:336
     2	0x00007f3aae6076da: ?? ??:0
     3	0x00007f3aae32161e: ?? ??:0
  Expected 0x0 at offset 0 (gpa 0x%lx), got 0x0

and after

 ==== Test Assertion Failure ====
  x86_64/private_mem_conversions_test.c:265: mem[i] == 0
  pid=5664 tid=5668 errno=4 - Interrupted system call
     1	0x0000000000401c74: __test_mem_conversions at private_mem_conversions_test.c:336
     2	0x00007fbe180076da: ?? ??:0
     3	0x00007fbe17d2161e: ?? ??:0
  Expected 0x0 at offset 0 (gpa 0x100000000), got 0xcc

Fixes: e5119382499c ("KVM: selftests: Add guest_snprintf() to KVM selftests")
Cc: Aaron Lewis <aaronlewis@google.com>
Link: https://lore.kernel.org/r/20230921171641.3641776-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2023-10-04 12:53:04 -07:00