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2022-10-10KVM: arm64: selftests: Fix multiple versions of GIC creationZenghui Yu1-2/+2
Commit 98f94ce42ac6 ("KVM: selftests: Move KVM_CREATE_DEVICE_TEST code to separate helper") wrongly converted a "real" GIC device creation to __kvm_test_create_device() and caused the test failure on my D05 (which supports v2 emulation). Fix it. Fixes: 98f94ce42ac6 ("KVM: selftests: Move KVM_CREATE_DEVICE_TEST code to separate helper") Signed-off-by: Zenghui Yu <[email protected]> Reviewed-by: Oliver Upton <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-10-09Merge tag 'powerpc-6.1-1' of ↵Linus Torvalds5-3/+248
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Remove our now never-true definitions for pgd_huge() and p4d_leaf(). - Add pte_needs_flush() and huge_pmd_needs_flush() for 64-bit. - Add support for syscall wrappers. - Add support for KFENCE on 64-bit. - Update 64-bit HV KVM to use the new guest state entry/exit accounting API. - Support execute-only memory when using the Radix MMU (P9 or later). - Implement CONFIG_PARAVIRT_TIME_ACCOUNTING for pseries guests. - Updates to our linker script to move more data into read-only sections. - Allow the VDSO to be randomised on 32-bit. - Many other small features and fixes. Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Christophe Leroy, David Hildenbrand, Disha Goel, Fabiano Rosas, Gaosheng Cui, Gustavo A. R. Silva, Haren Myneni, Hari Bathini, Jilin Yuan, Joel Stanley, Kajol Jain, Kees Cook, Krzysztof Kozlowski, Laurent Dufour, Liang He, Li Huafei, Lukas Bulwahn, Madhavan Srinivasan, Nathan Chancellor, Nathan Lynch, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Rohan McLure, Russell Currey, Sachin Sant, Segher Boessenkool, Shrikanth Hegde, Tyrel Datwyler, Wolfram Sang, ye xingchen, and Zheng Yongjun. * tag 'powerpc-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (214 commits) KVM: PPC: Book3S HV: Fix stack frame regs marker powerpc: Don't add __powerpc_ prefix to syscall entry points powerpc/64s/interrupt: Fix stack frame regs marker powerpc/64: Fix msr_check_and_set/clear MSR[EE] race powerpc/64s/interrupt: Change must-hard-mask interrupt check from BUG to WARN powerpc/pseries: Add firmware details to the hardware description powerpc/powernv: Add opal details to the hardware description powerpc: Add device-tree model to the hardware description powerpc/64: Add logical PVR to the hardware description powerpc: Add PVR & CPU name to hardware description powerpc: Add hardware description string powerpc/configs: Enable PPC_UV in powernv_defconfig powerpc/configs: Update config files for removed/renamed symbols powerpc/mm: Fix UBSAN warning reported on hugetlb powerpc/mm: Always update max/min_low_pfn in mem_topology_setup() powerpc/mm/book3s/hash: Rename flush_tlb_pmd_range powerpc: Drops STABS_DEBUG from linker scripts powerpc/64s: Remove lost/old comment powerpc/64s: Remove old STAB comment powerpc: remove orphan systbl_chk.sh ...
2022-10-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds7-75/+351
Pull kvm updates from Paolo Bonzini: "The first batch of KVM patches, mostly covering x86. ARM: - Account stage2 page table allocations in memory stats x86: - Account EPT/NPT arm64 page table allocations in memory stats - Tracepoint cleanups/fixes for nested VM-Enter and emulated MSR accesses - Drop eVMCS controls filtering for KVM on Hyper-V, all known versions of Hyper-V now support eVMCS fields associated with features that are enumerated to the guest - Use KVM's sanitized VMCS config as the basis for the values of nested VMX capabilities MSRs - A myriad event/exception fixes and cleanups. Most notably, pending exceptions morph into VM-Exits earlier, as soon as the exception is queued, instead of waiting until the next vmentry. This fixed a longstanding issue where the exceptions would incorrecly become double-faults instead of triggering a vmexit; the common case of page-fault vmexits had a special workaround, but now it's fixed for good - A handful of fixes for memory leaks in error paths - Cleanups for VMREAD trampoline and VMX's VM-Exit assembly flow - Never write to memory from non-sleepable kvm_vcpu_check_block() - Selftests refinements and cleanups - Misc typo cleanups Generic: - remove KVM_REQ_UNHALT" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (94 commits) KVM: remove KVM_REQ_UNHALT KVM: mips, x86: do not rely on KVM_REQ_UNHALT KVM: x86: never write to memory from kvm_vcpu_check_block() KVM: x86: Don't snapshot pending INIT/SIPI prior to checking nested events KVM: nVMX: Make event request on VMXOFF iff INIT/SIPI is pending KVM: nVMX: Make an event request if INIT or SIPI is pending on VM-Enter KVM: SVM: Make an event request if INIT or SIPI is pending when GIF is set KVM: x86: lapic does not have to process INIT if it is blocked KVM: x86: Rename kvm_apic_has_events() to make it INIT/SIPI specific KVM: x86: Rename and expose helper to detect if INIT/SIPI are allowed KVM: nVMX: Make an event request when pending an MTF nested VM-Exit KVM: x86: make vendor code check for all nested events mailmap: Update Oliver's email address KVM: x86: Allow force_emulation_prefix to be written without a reload KVM: selftests: Add an x86-only test to verify nested exception queueing KVM: selftests: Use uapi header to get VMX and SVM exit reasons/codes KVM: x86: Rename inject_pending_events() to kvm_check_and_inject_events() KVM: VMX: Update MTF and ICEBP comments to document KVM's subtle behavior KVM: x86: Treat pending TRIPLE_FAULT requests as pending exceptions KVM: x86: Morph pending exceptions to pending VM-Exits at queue time ...
2022-10-07selftests/memory-hotplug: Adjust log info for maintainabilityZhao Gongyi1-2/+5
Redirect misleading error message to /dev/null for offline_memory_expect_success(), And, add an output for online->offline test. Signed-off-by: Zhao Gongyi <[email protected]> Acked-by: David Hildenbrand <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-07selftests/memory-hotplug: Restore memory before exitZhao Gongyi1-5/+16
Some momory will be left in offline state when calling offline_memory_expect_fail() failed. Restore it before exit. Signed-off-by: Zhao Gongyi <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-07selftests/memory-hotplug: Add checking after online or offlineZhao Gongyi1-3/+9
Add checking for online_memory_expect_success()/ offline_memory_expect_success()/offline_memory_expect_fail(), or the test would exit 0 although the functions return 1. Signed-off-by: Zhao Gongyi <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-07selftests/ftrace: func_event_triggers: fix typo in user messageRandy Dunlap1-1/+1
Correct typo of "it's" to "it". Signed-off-by: Randy Dunlap <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Shuah Khan <[email protected]> Cc: [email protected] Acked-by: Steven Rostedt (Google) <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-07kunit: tool: Don't download risc-v opensbi firmware with wgetDavid Gow1-11/+7
When running a RISC-V test kernel under QEMU, we need an OpenSBI BIOS file. In the original QEMU support patchset, kunit_tool would optionally download this file from GitHub if it didn't exist, using wget. These days, it can usually be found in the distro's qemu-system-riscv package, and is located in /usr/share/qemu on all the distros I tried (Debian, Arch, OpenSUSE). Use this file, and thereby don't do any downloading in kunit_tool. In addition, we used to shell out to whatever 'wget' was in the path, which could have potentially been used to trick the developer into running another binary. By not using wget at all, we nicely sidestep this issue. Cc: Xu Panda <[email protected]> Fixes: 87c9c1631788 ("kunit: tool: add support for QEMU") Reported-by: Zeal Robot <[email protected]> Signed-off-by: David Gow <[email protected]> Tested-by: Daniel Latypov <[email protected]> Reviewed-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-07Merge tag 'for-6.1/io_uring-2022-10-03' of git://git.kernel.dk/linuxLinus Torvalds1-9/+13
Pull io_uring updates from Jens Axboe: - Add supported for more directly managed task_work running. This is beneficial for real world applications that end up issuing lots of system calls as part of handling work. Normal task_work will always execute as we transition in and out of the kernel, even for "unrelated" system calls. It's more efficient to defer the handling of io_uring's deferred work until the application wants it to be run, generally in batches. As part of ongoing work to write an io_uring network backend for Thrift, this has been shown to greatly improve performance. (Dylan) - Add IOPOLL support for passthrough (Kanchan) - Improvements and fixes to the send zero-copy support (Pavel) - Partial IO handling fixes (Pavel) - CQE ordering fixes around CQ ring overflow (Pavel) - Support sendto() for non-zc as well (Pavel) - Support sendmsg for zerocopy (Pavel) - Networking iov_iter fix (Stefan) - Misc fixes and cleanups (Pavel, me) * tag 'for-6.1/io_uring-2022-10-03' of git://git.kernel.dk/linux: (56 commits) io_uring/net: fix notif cqe reordering io_uring/net: don't update msg_name if not provided io_uring: don't gate task_work run on TIF_NOTIFY_SIGNAL io_uring/rw: defer fsnotify calls to task context io_uring/net: fix fast_iov assignment in io_setup_async_msg() io_uring/net: fix non-zc send with address io_uring/net: don't skip notifs for failed requests io_uring/rw: don't lose short results on io_setup_async_rw() io_uring/rw: fix unexpected link breakage io_uring/net: fix cleanup double free free_iov init io_uring: fix CQE reordering io_uring/net: fix UAF in io_sendrecv_fail() selftest/net: adjust io_uring sendzc notif handling io_uring: ensure local task_work marks task as running io_uring/net: zerocopy sendmsg io_uring/net: combine fail handlers io_uring/net: rename io_sendzc() io_uring/net: support non-zerocopy sendto io_uring/net: refactor io_setup_async_addr io_uring/net: don't lose partial send_zc on fail ...
2022-10-07ipv4: Handle attempt to delete multipath route when fib_info contains an nh ↵David Ahern1-0/+5
reference Gwangun Jung reported a slab-out-of-bounds access in fib_nh_match: fib_nh_match+0xf98/0x1130 linux-6.0-rc7/net/ipv4/fib_semantics.c:961 fib_table_delete+0x5f3/0xa40 linux-6.0-rc7/net/ipv4/fib_trie.c:1753 inet_rtm_delroute+0x2b3/0x380 linux-6.0-rc7/net/ipv4/fib_frontend.c:874 Separate nexthop objects are mutually exclusive with the legacy multipath spec. Fix fib_nh_match to return if the config for the to be deleted route contains a multipath spec while the fib_info is using a nexthop object. Fixes: 493ced1ac47c ("ipv4: Allow routes to use nexthop objects") Fixes: 6bf92d70e690 ("net: ipv4: fix route with nexthop object delete warning") Reported-by: Gwangun Jung <[email protected]> Signed-off-by: David Ahern <[email protected]> Reviewed-by: Ido Schimmel <[email protected]> Tested-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-10-06Merge tag 'linux-kselftest-kunit-6.1-rc1' of ↵Linus Torvalds6-97/+41
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull KUnit updates from Shuah Khan: "Several documentation fixes, UML related cleanups, and a feature to enable/disable KUnit tests This includes the change to rename all_test_uml.config, and use it for '--alltests'. Note: if anyone was using all_tests_uml.config, this change breaks them. This change simplifies the usage and eliminates the need to type: --kunitconfig=tools/testing/kunit/configs/all_tests_uml.config A simple workaround to create a symlink to the new name can solve the problem for anyone using all_tests_uml.config. all_tests_uml.config should work across ~all architectures" * tag 'linux-kselftest-kunit-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: Documentation: Kunit: Use full path to .kunitconfig kunit: tool: rename all_test_uml.config, use it for --alltests kunit: tool: remove UML specific options from all_tests_uml.config lib: stackinit: update reference to kunit-tool lib: overflow: update reference to kunit-tool Documentation: KUnit: update links in the index page Documentation: KUnit: add intro to the getting-started page Documentation: KUnit: Reword start guide for selecting tests Documentation: KUnit: add note about mrproper in start.rst Documentation: KUnit: avoid repeating "kunit.py run" in start.rst Documentation: KUnit: remove duplicated docs for kunit_tool Documentation: Kunit: Add ref for other kinds of tests Documentation: KUnit: Fix non-uml anchor Documentation: Kunit: Fix inconsistent titles Documentation: kunit: fix trivial typo kunit: no longer call module_info(test, "Y") for kunit modules kunit: add kunit.enable to enable/disable KUnit test kunit: tool: make --raw_output=kunit (aka --raw_output) preserve leading spaces
2022-10-06Merge tag 'linux-kselftest-next-6.1-rc1' of ↵Linus Torvalds11-111/+109
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: "Fixes and new tests: - Add an amd-pstate-ut test module, used by kselftest to unit test amd-pstate functionality - Fixes and cleanups to to cpu-hotplug to delete the fault injection test code - Improvements to vm test to use top_srcdir for builds" * tag 'linux-kselftest-next-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: docs:kselftest: fix kselftest_module.h path of example module cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UT selftests/cpu-hotplug: Add log info when test success selftests/cpu-hotplug: Reserve one cpu online at least selftests/cpu-hotplug: Delete fault injection related code selftests/cpu-hotplug: Use return instead of exit selftests/cpu-hotplug: Correct log info cpufreq: amd-pstate: modify type in argument 2 for filp_open Documentation: amd-pstate: Add unit test introduction selftests: amd-pstate: Add test trigger for amd-pstate driver cpufreq: amd-pstate: Add test module for amd-pstate driver cpufreq: amd-pstate: Expose struct amd_cpudata selftests/vm: use top_srcdir instead of recomputing relative paths
2022-10-06Merge tag 'arm64-upstream' of ↵Linus Torvalds32-168/+1555
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - arm64 perf: DDR PMU driver for Alibaba's T-Head Yitian 710 SoC, SVE vector granule register added to the user regs together with SVE perf extensions documentation. - SVE updates: add HWCAP for SVE EBF16, update the SVE ABI documentation to match the actual kernel behaviour (zeroing the registers on syscall rather than "zeroed or preserved" previously). - More conversions to automatic system registers generation. - vDSO: use self-synchronising virtual counter access in gettimeofday() if the architecture supports it. - arm64 stacktrace cleanups and improvements. - arm64 atomics improvements: always inline assembly, remove LL/SC trampolines. - Improve the reporting of EL1 exceptions: rework BTI and FPAC exception handling, better EL1 undefs reporting. - Cortex-A510 erratum 2658417: remove BF16 support due to incorrect result. - arm64 defconfig updates: build CoreSight as a module, enable options necessary for docker, memory hotplug/hotremove, enable all PMUs provided by Arm. - arm64 ptrace() support for TPIDR2_EL0 (register provided with the SME extensions). - arm64 ftraces updates/fixes: fix module PLTs with mcount, remove unused function. - kselftest updates for arm64: simple HWCAP validation, FP stress test improvements, validation of ZA regs in signal handlers, include larger SVE and SME vector lengths in signal tests, various cleanups. - arm64 alternatives (code patching) improvements to robustness and consistency: replace cpucap static branches with equivalent alternatives, associate callback alternatives with a cpucap. - Miscellaneous updates: optimise kprobe performance of patching single-step slots, simplify uaccess_mask_ptr(), move MTE registers initialisation to C, support huge vmalloc() mappings, run softirqs on the per-CPU IRQ stack, compat (arm32) misalignment fixups for multiword accesses. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (126 commits) arm64: alternatives: Use vdso/bits.h instead of linux/bits.h arm64/kprobe: Optimize the performance of patching single-step slot arm64: defconfig: Add Coresight as module kselftest/arm64: Handle EINTR while reading data from children kselftest/arm64: Flag fp-stress as exiting when we begin finishing up kselftest/arm64: Don't repeat termination handler for fp-stress ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs arm64/mm: fold check for KFENCE into can_set_direct_map() arm64: ftrace: fix module PLTs with mcount arm64: module: Remove unused plt_entry_is_initialized() arm64: module: Make plt_equals_entry() static arm64: fix the build with binutils 2.27 kselftest/arm64: Don't enable v8.5 for MTE selftest builds arm64: uaccess: simplify uaccess_mask_ptr() arm64: asm/perf_regs.h: Avoid C++-style comment in UAPI header kselftest/arm64: Fix typo in hwcap check arm64: mte: move register initialization to C arm64: mm: handle ARM64_KERNEL_USES_PMD_MAPS in vmemmap_populate() arm64: dma: Drop cache invalidation from arch_dma_prep_coherent() arm64/sve: Add Perf extensions documentation ...
2022-10-05cpufreq: amd-pstate: Add explanation for X86_AMD_PSTATE_UTMeng Li1-0/+1
This kernel module is used for testing. It's safe to say M here. It can also be built-in without X86_AMD_PSTATE enabled. Currently, only tests for amd-pstate are supported. If X86_AMD_PSTATE is set disabled, it can tell the users test can only run on amd-pstate driver, please set X86_AMD_PSTATE enabled. In the future, comparison tests will be added. It can set amd-pstate disabled and set acpi-cpufreq enabled to run test cases, then compare the test results. Suggested-by: Shuah Khan <[email protected]> Signed-off-by: Meng Li <[email protected]> Acked-by: Huang Rui <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05selftests/cpu-hotplug: Add log info when test successZhao Gongyi1-1/+1
Add log information when run full test successfully. Signed-off-by: Zhao Gongyi <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05selftests/cpu-hotplug: Reserve one cpu online at leastZhao Gongyi1-18/+22
Considering that we can not offline all cpus in any cases, we need to reserve one cpu online when the test offline all hotpluggable online cpus, otherwise the test will fail forever. Fixes: d89dffa976bc ("fault-injection: add selftests for cpu and memory hotplug") Signed-off-by: Zhao Gongyi <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05selftests/cpu-hotplug: Delete fault injection related codeZhao Gongyi2-82/+6
Delete fault injection related code since the module has been deleted. Signed-off-by: Zhao Gongyi <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05selftests/cpu-hotplug: Use return instead of exitZhao Gongyi1-5/+8
Some cpus will be left in offline state when online function exits in some error conditions. Use return instead of exit to fix it. Signed-off-by: Zhao Gongyi <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05selftests/cpu-hotplug: Correct log infoZhao Gongyi1-1/+1
Correct the log info to match the test. Signed-off-by: Zhao Gongyi <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05selftests: amd-pstate: Add test trigger for amd-pstate driverMeng Li4-0/+66
Add amd-pstate test trigger in kselftest, it will load/unload amd-pstate-ut module to test some cases etc. Signed-off-by: Meng Li <[email protected]> Acked-by: Huang Rui <[email protected]> Reviewed-by: Shuah Khan <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05selftests/vm: use top_srcdir instead of recomputing relative pathsAxel Rasmussen4-5/+5
In various places both in t/t/s/v/Makefile as well as some of the test sources, we were referring to headers or directories using some fairly long relative paths. Since we have a working top_srcdir variable though, which refers to the root of the kernel tree, we can clean up all of these "up and over" relative paths, just relying on the single variable instead. Signed-off-by: Axel Rasmussen <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2022-10-05Merge branch 'for-6.1/sysfs-patched-object' into for-linusPetr Mladek3-1/+122
2022-10-05selftest: tpm2: Add Client.__del__() to close /dev/tpm* handleStefan Berger1-0/+4
The following output can bee seen when the test is executed: test_flush_context (tpm2_tests.SpaceTest) ... \ /usr/lib64/python3.6/unittest/case.py:605: ResourceWarning: \ unclosed file <_io.FileIO name='/dev/tpmrm0' mode='rb+' closefd=True> An instance of Client does not implicitly close /dev/tpm* handle, once it gets destroyed. Close the file handle in the class destructor Client.__del__(). Fixes: 6ea3dfe1e0732 ("selftests: add TPM 2.0 tests") Cc: Shuah Khan <[email protected]> Cc: [email protected] Cc: Jarkko Sakkinen <[email protected]> Signed-off-by: Stefan Berger <[email protected]> Reviewed-by: Jarkko Sakkinen <[email protected]> Signed-off-by: Jarkko Sakkinen <[email protected]>
2022-10-04Merge tag 'net-next-6.1' of ↵Linus Torvalds262-1590/+21684
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Introduce and use a single page frag cache for allocating small skb heads, clawing back the 10-20% performance regression in UDP flood test from previous fixes. - Run packets which already went thru HW coalescing thru SW GRO. This significantly improves TCP segment coalescing and simplifies deployments as different workloads benefit from HW or SW GRO. - Shrink the size of the base zero-copy send structure. - Move TCP init under a new slow / sleepable version of DO_ONCE(). BPF: - Add BPF-specific, any-context-safe memory allocator. - Add helpers/kfuncs for PKCS#7 signature verification from BPF programs. - Define a new map type and related helpers for user space -> kernel communication over a ring buffer (BPF_MAP_TYPE_USER_RINGBUF). - Allow targeting BPF iterators to loop through resources of one task/thread. - Add ability to call selected destructive functions. Expose crash_kexec() to allow BPF to trigger a kernel dump. Use CAP_SYS_BOOT check on the loading process to judge permissions. - Enable BPF to collect custom hierarchical cgroup stats efficiently by integrating with the rstat framework. - Support struct arguments for trampoline based programs. Only structs with size <= 16B and x86 are supported. - Invoke cgroup/connect{4,6} programs for unprivileged ICMP ping sockets (instead of just TCP and UDP sockets). - Add a helper for accessing CLOCK_TAI for time sensitive network related programs. - Support accessing network tunnel metadata's flags. - Make TCP SYN ACK RTO tunable by BPF programs with TCP Fast Open. - Add support for writing to Netfilter's nf_conn:mark. Protocols: - WiFi: more Extremely High Throughput (EHT) and Multi-Link Operation (MLO) work (802.11be, WiFi 7). - vsock: improve support for SO_RCVLOWAT. - SMC: support SO_REUSEPORT. - Netlink: define and document how to use netlink in a "modern" way. Support reporting missing attributes via extended ACK. - IPSec: support collect metadata mode for xfrm interfaces. - TCPv6: send consistent autoflowlabel in SYN_RECV state and RST packets. - TCP: introduce optional per-netns connection hash table to allow better isolation between namespaces (opt-in, at the cost of memory and cache pressure). - MPTCP: support TCP_FASTOPEN_CONNECT. - Add NEXT-C-SID support in Segment Routing (SRv6) End behavior. - Adjust IP_UNICAST_IF sockopt behavior for connected UDP sockets. - Open vSwitch: - Allow specifying ifindex of new interfaces. - Allow conntrack and metering in non-initial user namespace. - TLS: support the Korean ARIA-GCM crypto algorithm. - Remove DECnet support. Driver API: - Allow selecting the conduit interface used by each port in DSA switches, at runtime. - Ethernet Power Sourcing Equipment and Power Device support. - Add tc-taprio support for queueMaxSDU parameter, i.e. setting per traffic class max frame size for time-based packet schedules. - Support PHY rate matching - adapting between differing host-side and link-side speeds. - Introduce QUSGMII PHY mode and 1000BASE-KX interface mode. - Validate OF (device tree) nodes for DSA shared ports; make phylink-related properties mandatory on DSA and CPU ports. Enforcing more uniformity should allow transitioning to phylink. - Require that flash component name used during update matches one of the components for which version is reported by info_get(). - Remove "weight" argument from driver-facing NAPI API as much as possible. It's one of those magic knobs which seemed like a good idea at the time but is too indirect to use in practice. - Support offload of TLS connections with 256 bit keys. New hardware / drivers: - Ethernet: - Microchip KSZ9896 6-port Gigabit Ethernet Switch - Renesas Ethernet AVB (EtherAVB-IF) Gen4 SoCs - Analog Devices ADIN1110 and ADIN2111 industrial single pair Ethernet (10BASE-T1L) MAC+PHY. - Rockchip RV1126 Gigabit Ethernet (a version of stmmac IP). - Ethernet SFPs / modules: - RollBall / Hilink / Turris 10G copper SFPs - HALNy GPON module - WiFi: - CYW43439 SDIO chipset (brcmfmac) - CYW89459 PCIe chipset (brcmfmac) - BCM4378 on Apple platforms (brcmfmac) Drivers: - CAN: - gs_usb: HW timestamp support - Ethernet PHYs: - lan8814: cable diagnostics - Ethernet NICs: - Intel (100G): - implement control of FCS/CRC stripping - port splitting via devlink - L2TPv3 filtering offload - nVidia/Mellanox: - tunnel offload for sub-functions - MACSec offload, w/ Extended packet number and replay window offload - significantly restructure, and optimize the AF_XDP support, align the behavior with other vendors - Huawei: - configuring DSCP map for traffic class selection - querying standard FEC statistics - querying SerDes lane number via ethtool - Marvell/Cavium: - egress priority flow control - MACSec offload - AMD/SolarFlare: - PTP over IPv6 and raw Ethernet - small / embedded: - ax88772: convert to phylink (to support SFP cages) - altera: tse: convert to phylink - ftgmac100: support fixed link - enetc: standard Ethtool counters - macb: ZynqMP SGMII dynamic configuration support - tsnep: support multi-queue and use page pool - lan743x: Rx IP & TCP checksum offload - igc: add xdp frags support to ndo_xdp_xmit - Ethernet high-speed switches: - Marvell (prestera): - support SPAN port features (traffic mirroring) - nexthop object offloading - Microchip (sparx5): - multicast forwarding offload - QoS queuing offload (tc-mqprio, tc-tbf, tc-ets) - Ethernet embedded switches: - Marvell (mv88e6xxx): - support RGMII cmode - NXP (felix): - standardized ethtool counters - Microchip (lan966x): - QoS queuing offload (tc-mqprio, tc-tbf, tc-cbs, tc-ets) - traffic policing and mirroring - link aggregation / bonding offload - QUSGMII PHY mode support - Qualcomm 802.11ax WiFi (ath11k): - cold boot calibration support on WCN6750 - support to connect to a non-transmit MBSSID AP profile - enable remain-on-channel support on WCN6750 - Wake-on-WLAN support for WCN6750 - support to provide transmit power from firmware via nl80211 - support to get power save duration for each client - spectral scan support for 160 MHz - MediaTek WiFi (mt76): - WiFi-to-Ethernet bridging offload for MT7986 chips - RealTek WiFi (rtw89): - P2P support" * tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1864 commits) eth: pse: add missing static inlines once: rename _SLOW to _SLEEPABLE net: pse-pd: add regulator based PSE driver dt-bindings: net: pse-dt: add bindings for regulator based PoDL PSE controller ethtool: add interface to interact with Ethernet Power Equipment net: mdiobus: search for PSE nodes by parsing PHY nodes. net: mdiobus: fwnode_mdiobus_register_phy() rework error handling net: add framework to support Ethernet PSE and PDs devices dt-bindings: net: phy: add PoDL PSE property net: marvell: prestera: Propagate nh state from hw to kernel net: marvell: prestera: Add neighbour cache accounting net: marvell: prestera: add stub handler neighbour events net: marvell: prestera: Add heplers to interact with fib_notifier_info net: marvell: prestera: Add length macros for prestera_ip_addr net: marvell: prestera: add delayed wq and flush wq on deinit net: marvell: prestera: Add strict cleanup of fib arbiter net: marvell: prestera: Add cleanup of allocated fib_nodes net: marvell: prestera: Add router nexthops ABI eth: octeon: fix build after netif_napi_add() changes net/mlx5: E-Switch, Return EBUSY if can't get mode lock ...
2022-10-03Merge tag 'lsm-pr-20221003' of ↵Linus Torvalds2-0/+135
git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm Pull LSM updates from Paul Moore: "Seven patches for the LSM layer and we've got a mix of trivial and significant patches. Highlights below, starting with the smaller bits first so they don't get lost in the discussion of the larger items: - Remove some redundant NULL pointer checks in the common LSM audit code. - Ratelimit the lockdown LSM's access denial messages. With this change there is a chance that the last visible lockdown message on the console is outdated/old, but it does help preserve the initial series of lockdown denials that started the denial message flood and my gut feeling is that these might be the more valuable messages. - Open userfaultfds as readonly instead of read/write. While this code obviously lives outside the LSM, it does have a noticeable impact on the LSMs with Ondrej explaining the situation in the commit description. It is worth noting that this patch languished on the VFS list for over a year without any comments (objections or otherwise) so I took the liberty of pulling it into the LSM tree after giving fair notice. It has been in linux-next since the end of August without any noticeable problems. - Add a LSM hook for user namespace creation, with implementations for both the BPF LSM and SELinux. Even though the changes are fairly small, this is the bulk of the diffstat as we are also including BPF LSM selftests for the new hook. It's also the most contentious of the changes in this pull request with Eric Biederman NACK'ing the LSM hook multiple times during its development and discussion upstream. While I've never taken NACK's lightly, I'm sending these patches to you because it is my belief that they are of good quality, satisfy a long-standing need of users and distros, and are in keeping with the existing nature of the LSM layer and the Linux Kernel as a whole. The patches in implement a LSM hook for user namespace creation that allows for a granular approach, configurable at runtime, which enables both monitoring and control of user namespaces. The general consensus has been that this is far preferable to the other solutions that have been adopted downstream including outright removal from the kernel, disabling via system wide sysctls, or various other out-of-tree mechanisms that users have been forced to adopt since we haven't been able to provide them an upstream solution for their requests. Eric has been steadfast in his objections to this LSM hook, explaining that any restrictions on the user namespace could have significant impact on userspace. While there is the possibility of impacting userspace, it is important to note that this solution only impacts userspace when it is requested based on the runtime configuration supplied by the distro/admin/user. Frederick (the pathset author), the LSM/security community, and myself have tried to work with Eric during development of this patchset to find a mutually acceptable solution, but Eric's approach and unwillingness to engage in a meaningful way have made this impossible. I have CC'd Eric directly on this pull request so he has a chance to provide his side of the story; there have been no objections outside of Eric's" * tag 'lsm-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: lockdown: ratelimit denial messages userfaultfd: open userfaultfds with O_RDONLY selinux: Implement userns_create hook selftests/bpf: Add tests verifying bpf lsm userns_create hook bpf-lsm: Make bpf_lsm_userns_create() sleepable security, lsm: Introduce security_create_user_ns() lsm: clean up redundant NULL pointer check
2022-10-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2-7/+8
Merge in the left-over fixes before the net-next pull-request. Conflicts: drivers/net/ethernet/mediatek/mtk_ppe.c ae3ed15da588 ("net: ethernet: mtk_eth_soc: fix state in __mtk_foe_entry_clear") 9d8cb4c096ab ("net: ethernet: mtk_eth_soc: add foe_entry_size to mtk_eth_soc") https://lore.kernel.org/all/[email protected]/ kernel/bpf/helpers.c 8addbfc7b308 ("bpf: Gate dynptr API behind CAP_BPF") 5679ff2f138f ("bpf: Move bpf_loop and bpf_for_each_map_elem under CAP_BPF") 8a67f2de9b1d ("bpf: expose bpf_strtol and bpf_strtoul to all program types") https://lore.kernel.org/all/[email protected]/ Signed-off-by: Jakub Kicinski <[email protected]>
2022-10-03Merge tag 'hardening-v6.1-rc1' of ↵Linus Torvalds1-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull kernel hardening updates from Kees Cook: "Most of the collected changes here are fixes across the tree for various hardening features (details noted below). The most notable new feature here is the addition of the memcpy() overflow warning (under CONFIG_FORTIFY_SOURCE), which is the next step on the path to killing the common class of "trivially detectable" buffer overflow conditions (i.e. on arrays with sizes known at compile time) that have resulted in many exploitable vulnerabilities over the years (e.g. BleedingTooth). This feature is expected to still have some undiscovered false positives. It's been in -next for a full development cycle and all the reported false positives have been fixed in their respective trees. All the known-bad code patterns we could find with Coccinelle are also either fixed in their respective trees or in flight. The commit message in commit 54d9469bc515 ("fortify: Add run-time WARN for cross-field memcpy()") for the feature has extensive details, but I'll repeat here that this is a warning _only_, and is not intended to actually block overflows (yet). The many patches fixing array sizes and struct members have been landing for several years now, and we're finally able to turn this on to find any remaining stragglers. Summary: Various fixes across several hardening areas: - loadpin: Fix verity target enforcement (Matthias Kaehlcke). - zero-call-used-regs: Add missing clobbers in paravirt (Bill Wendling). - CFI: clean up sparc function pointer type mismatches (Bart Van Assche). - Clang: Adjust compiler flag detection for various Clang changes (Sami Tolvanen, Kees Cook). - fortify: Fix warnings in arch-specific code in sh, ARM, and xen. Improvements to existing features: - testing: improve overflow KUnit test, introduce fortify KUnit test, add more coverage to LKDTM tests (Bart Van Assche, Kees Cook). - overflow: Relax overflow type checking for wider utility. New features: - string: Introduce strtomem() and strtomem_pad() to fill a gap in strncpy() replacement needs. - um: Enable FORTIFY_SOURCE support. - fortify: Enable run-time struct member memcpy() overflow warning" * tag 'hardening-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (27 commits) Makefile.extrawarn: Move -Wcast-function-type-strict to W=1 hardening: Remove Clang's enable flag for -ftrivial-auto-var-init=zero sparc: Unbreak the build x86/paravirt: add extra clobbers with ZERO_CALL_USED_REGS enabled x86/paravirt: clean up typos and grammaros fortify: Convert to struct vs member helpers fortify: Explicitly check bounds are compile-time constants x86/entry: Work around Clang __bdos() bug ARM: decompressor: Include .data.rel.ro.local fortify: Adjust KUnit test for modular build sh: machvec: Use char[] for section boundaries kunit/memcpy: Avoid pathological compile-time string size lib: Improve the is_signed_type() kunit test LoadPin: Require file with verity root digests to have a header dm: verity-loadpin: Only trust verity targets with enforcement LoadPin: Fix Kconfig doc about format of file with verity digests um: Enable FORTIFY_SOURCE lkdtm: Update tests for memcpy() run-time warnings fortify: Add run-time WARN for cross-field memcpy() fortify: Use SIZE_MAX instead of (size_t)-1 ...
2022-10-03Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski2-7/+8
Daniel Borkmann says: ==================== pull-request: bpf 2022-10-03 We've added 10 non-merge commits during the last 23 day(s) which contain a total of 14 files changed, 130 insertions(+), 69 deletions(-). The main changes are: 1) Fix dynptr helper API to gate behind CAP_BPF given it was not intended for unprivileged BPF programs, from Kumar Kartikeya Dwivedi. 2) Fix need_wakeup flag inheritance from umem buffer pool for shared xsk sockets, from Jalal Mostafa. 3) Fix truncated last_member_type_id in btf_struct_resolve() which had a wrong storage type, from Lorenz Bauer. 4) Fix xsk back-pressure mechanism on tx when amount of produced descriptors to CQ is lower than what was grabbed from xsk tx ring, from Maciej Fijalkowski. 5) Fix wrong cgroup attach flags being displayed to effective progs, from Pu Lehui. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: xsk: Inherit need_wakeup flag for shared sockets bpf: Gate dynptr API behind CAP_BPF selftests/bpf: Adapt cgroup effective query uapi change bpftool: Fix wrong cgroup attach flags being assigned to effective progs bpf, cgroup: Reject prog_attach_flags array when effective query bpf: Ensure correct locking around vulnerable function find_vpid() bpf: btf: fix truncated last_member_type_id in btf_struct_resolve selftests/xsk: Add missing close() on netns fd xsk: Fix backpressure mechanism on Tx MAINTAINERS: Add include/linux/tnum.h to BPF CORE ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-10-03mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbolJohannes Weiner1-1/+0
Since 2d1c498072de ("mm: memcontrol: make swap tracking an integral part of memory control"), CONFIG_MEMCG_SWAP hasn't been a user-visible config option anymore, it just means CONFIG_MEMCG && CONFIG_SWAP. Update the sites accordingly and drop the symbol. [ While touching the docs, remove two references to CONFIG_MEMCG_KMEM, which hasn't been a user-visible symbol for over half a decade. ] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Johannes Weiner <[email protected]> Acked-by: Shakeel Butt <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Roman Gushchin <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memoryZach O'Keefe2-38/+134
Add :collapse mod to userfaultfd selftest. Currently this mod is only valid for "shmem" test type, but could be used for other test types. When provided, memory allocated by ->allocate_area() will be hugepage-aligned enforced to be hugepage-sized. userfaultf_minor_test, after the UFFD-registered mapping has been populated by UUFD minor fault handler, attempt to MADV_COLLAPSE the UFFD-registered mapping to collapse the memory into a pmd-mapped THP. This test is meant to be a functional test of what occurs during UFFD-driven live migration of VMs backed by huge tmpfs where, after a hugepage-sized region has been successfully migrated (in native page-sized chunks, to avoid latency of fetched a hugepage over the network), we want to reclaim previous VM performance by remapping it at the PMD level. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Zach O'Keefe <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: James Houghton <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Pasha Tatashin <[email protected]> Cc: Peter Xu <[email protected]> Cc: Rongwei Wang <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Song Liu <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Yang Shi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmdZach O'Keefe1-0/+30
This test tests that MADV_COLLAPSE acting on file/shmem memory for which (1) the file extent mapping by the memory is already a huge page in the page cache, and (2) the pmd mapping this memory in the target process is none. In practice, (1)+(2) is the state left over after khugepaged has successfully collapsed file/shmem memory for a target VMA, but the memory has not yet been refaulted. So, this test in-effect tests MADV_COLLAPSE racing with khugepaged to collapse the memory first. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Zach O'Keefe <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: James Houghton <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Pasha Tatashin <[email protected]> Cc: Peter Xu <[email protected]> Cc: Rongwei Wang <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Song Liu <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Yang Shi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftests/vm: add thp collapse shmem testingZach O'Keefe1-2/+55
Add memory operations for shmem (memfd) memory, and reuse existing tests with the new memory operations. Shmem tests can be called with "shmem" mem_type, and shmem tests are ran with "all" mem_type as well. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Zach O'Keefe <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: James Houghton <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Pasha Tatashin <[email protected]> Cc: Peter Xu <[email protected]> Cc: Rongwei Wang <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Song Liu <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Yang Shi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftests/vm: add thp collapse file and tmpfs testingZach O'Keefe3-56/+431
Add memory operations for file-backed and tmpfs memory. Call existing tests with these new memory operations to test collapse functionality of khugepaged and MADV_COLLAPSE on file-backed and tmpfs memory. Not all tests are reusable; for example, collapse_swapin_single_pte() which checks swap usage. Refactor test arguments. Usage is now: Usage: ./khugepaged <test type> [dir] <test type> : <context>:<mem_type> <context> : [all|khugepaged|madvise] <mem_type> : [all|anon|file] "file,all" mem_type requires [dir] argument "file,all" mem_type requires kernel built with CONFIG_READ_ONLY_THP_FOR_FS=y if [dir] is a (sub)directory of a tmpfs mount, tmpfs must be mounted with huge=madvise option for khugepaged tests to work Refactor calling tests to make it clear what collapse context / memory operations they support, but only invoke tests requested by user. Also log what test is being ran, and with what context / memory, to make test logs more human readable. A new test file is created and deleted for every test to ensure no pages remain in the page cache between tests (tests also may attempt to collapse different amount of memory). For file-backed memory where the file is stored on a block device, disable /sys/block/<device>/queue/read_ahead_kb so that pages don't find their way into the page cache without the tests faulting them in. Add file and shmem wrappers to vm_utils check for file and shmem hugepages in smaps. [[email protected]: fix "add thp collapse file and tmpfs testing" for tmpfs] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Zach O'Keefe <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: James Houghton <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Pasha Tatashin <[email protected]> Cc: Peter Xu <[email protected]> Cc: Rongwei Wang <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Song Liu <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Yang Shi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftests/vm: modularize thp collapse memory operationsZach O'Keefe1-166/+207
Modularize operations to setup, cleanup, fault, and check for huge pages, for a given memory type. This allows reusing existing tests with additional memory types by defining new memory operations. Following patches will add file and shmem memory types. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Zach O'Keefe <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: James Houghton <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Pasha Tatashin <[email protected]> Cc: Peter Xu <[email protected]> Cc: Rongwei Wang <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Song Liu <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Yang Shi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftests/vm: dedup THP helpersZach O'Keefe6-76/+32
These files: tools/testing/selftests/vm/vm_util.c tools/testing/selftests/vm/khugepaged.c Both contain logic to: 1) Determine hugepage size on current system 2) Read /proc/self/smaps to determine number of THPs at an address Refactor selftests/vm/khugepaged.c to use the vm_util common helpers and add it as a build dependency. Since selftests/vm/khugepaged.c is the largest user of check_huge(), change the signature of check_huge() to match selftests/vm/khugepaged.c's useage: take an expected number of hugepages, and return a bool indicating if the correct number of hugepages were found. Add a wrapper, check_huge_anon(), in anticipation of checking smaps for file and shmem hugepages. Update existing callsites to use the new pattern / function. Likewise, check_for_pattern() was duplicated, and it's a general enough helper to include in vm_util helpers as well. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Zach O'Keefe <[email protected]> Reviewed-by: Zi Yan <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: James Houghton <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Pasha Tatashin <[email protected]> Cc: Peter Xu <[email protected]> Cc: Rongwei Wang <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Song Liu <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Yang Shi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftests/vm: retry on EAGAIN for MADV_COLLAPSE selftestZach O'Keefe1-1/+22
MADV_COLLAPSE is a best-effort request that will set errno to an actionable value if the request cannot be performed. For example, if pages are not found on the LRU, or if they are currently locked by something else, MADV_COLLAPSE will fail and set errno to EAGAIN to inform callers that they may try again. Since the khugepaged selftest is the first public use of MADV_COLLAPSE, set a best practice of checking errno and retrying on EAGAIN. Link: https://lkml.kernel.org/r/[email protected] Fixes: 9330694de59f ("selftests/vm: add MADV_COLLAPSE collapse context to selftests") Signed-off-by: Zach O'Keefe <[email protected]> Cc: Axel Rasmussen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: James Houghton <[email protected]> Cc: "Kirill A. Shutemov" <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Pasha Tatashin <[email protected]> Cc: Peter Xu <[email protected]> Cc: Rongwei Wang <[email protected]> Cc: SeongJae Park <[email protected]> Cc: Song Liu <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Yang Shi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03selftest/damon: add a test for duplicate context dirs creationSeongJae Park2-0/+28
Patch series "mm/damon: minor fixes and cleanups". This patchset contains minor fixes and cleanups for DAMON including - selftest for a bug we found before (Patch 1), - fix of region holes in vaddr corner case and a kunit test for it (Patches 2 and 3), and - documents/Kconfig updates for title wordsmithing (Patch 4) and more aggressive DAMON debugfs interface deprecation announcement (Patches 5-7). This patch (of 7): Commit d26f60703606 ("mm/damon/dbgfs: avoid duplicate context directory creation") fixes a bug which could result in memory leak and DAMON disablement. This commit adds a selftest for verifying the fix and avoid regression. Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: SeongJae Park <[email protected]> Cc: Brendan Higgins <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Shuah Khan <[email protected]> Cc: Yun Levi <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03memblock tests: add new pageblock related macroKefeng Wang1-0/+2
Add new pageblock_start_pfn() and pageblock_align() macro which are needed by memblock tests. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Kefeng Wang <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: Mike Rapoport <[email protected]> Cc: Oscar Salvador <[email protected]> Cc: Vlastimil Babka <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03mm/hmm/test: use char dev with struct device to get device nodeMika Penttilä1-10/+0
HMM selftests use an in-kernel pseudo device to emulate device memory. The pseudo device registers a major device range for two or four pseudo device instances. User space has a script that reads /proc/devices in order to find the assigned major number, and sends that to mknod(1), once for each node. Change this to properly use cdev and struct device APIs. Delete the /proc/devices parsing from the user-space test script, now that it is unnecessary. Also, delete an unused field in struct dmirror_device: devmem. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Mika Penttilä <[email protected]> Reviewed-by: John Hubbard <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Cc: Alistair Popple <[email protected]> Cc: Ralph Campbell <[email protected]> Cc: Vlastimil Babka <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2022-10-03Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski73-603/+5446
Daniel Borkmann says: ==================== pull-request: bpf-next 2022-10-03 We've added 143 non-merge commits during the last 27 day(s) which contain a total of 151 files changed, 8321 insertions(+), 1402 deletions(-). The main changes are: 1) Add kfuncs for PKCS#7 signature verification from BPF programs, from Roberto Sassu. 2) Add support for struct-based arguments for trampoline based BPF programs, from Yonghong Song. 3) Fix entry IP for kprobe-multi and trampoline probes under IBT enabled, from Jiri Olsa. 4) Batch of improvements to veristat selftest tool in particular to add CSV output, a comparison mode for CSV outputs and filtering, from Andrii Nakryiko. 5) Add preparatory changes needed for the BPF core for upcoming BPF HID support, from Benjamin Tissoires. 6) Support for direct writes to nf_conn's mark field from tc and XDP BPF program types, from Daniel Xu. 7) Initial batch of documentation improvements for BPF insn set spec, from Dave Thaler. 8) Add a new BPF_MAP_TYPE_USER_RINGBUF map which provides single-user-space-producer / single-kernel-consumer semantics for BPF ring buffer, from David Vernet. 9) Follow-up fixes to BPF allocator under RT to always use raw spinlock for the BPF hashtab's bucket lock, from Hou Tao. 10) Allow creating an iterator that loops through only the resources of one task/thread instead of all, from Kui-Feng Lee. 11) Add support for kptrs in the per-CPU arraymap, from Kumar Kartikeya Dwivedi. 12) Add a new kfunc helper for nf to set src/dst NAT IP/port in a newly allocated CT entry which is not yet inserted, from Lorenzo Bianconi. 13) Remove invalid recursion check for struct_ops for TCP congestion control BPF programs, from Martin KaFai Lau. 14) Fix W^X issue with BPF trampoline and BPF dispatcher, from Song Liu. 15) Fix percpu_counter leakage in BPF hashtab allocation error path, from Tetsuo Handa. 16) Various cleanups in BPF selftests to use preferred ASSERT_* macros, from Wang Yufen. 17) Add invocation for cgroup/connect{4,6} BPF programs for ICMP pings, from YiFei Zhu. 18) Lift blinding decision under bpf_jit_harden = 1 to bpf_capable(), from Yauheni Kaliuta. 19) Various libbpf fixes and cleanups including a libbpf NULL pointer deref, from Xin Liu. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (143 commits) net: netfilter: move bpf_ct_set_nat_info kfunc in nf_nat_bpf.c Documentation: bpf: Add implementation notes documentations to table of contents bpf, docs: Delete misformatted table. selftests/xsk: Fix double free bpftool: Fix error message of strerror libbpf: Fix overrun in netlink attribute iteration selftests/bpf: Fix spelling mistake "unpriviledged" -> "unprivileged" samples/bpf: Fix typo in xdp_router_ipv4 sample bpftool: Remove unused struct event_ring_info bpftool: Remove unused struct btf_attach_point bpf, docs: Add TOC and fix formatting. bpf, docs: Add Clang note about BPF_ALU bpf, docs: Move Clang notes to a separate file bpf, docs: Linux byteswap note bpf, docs: Move legacy packet instructions to a separate file selftests/bpf: Check -EBUSY for the recurred bpf_setsockopt(TCP_CONGESTION) bpf: tcp: Stop bpf_setsockopt(TCP_CONGESTION) in init ops to recur itself bpf: Refactor bpf_setsockopt(TCP_CONGESTION) handling into another function bpf: Move the "cdg" tcp-cc check to the common sol_tcp_sockopt() bpf: Add __bpf_prog_{enter,exit}_struct_ops for struct_ops trampoline ... ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-10-03Merge tag 'kvm-riscv-6.1-1' of https://github.com/kvm-riscv/linux into HEADPaolo Bonzini18-191/+448
KVM/riscv changes for 6.1 - Improved instruction encoding infrastructure for instructions not yet supported by binutils - Svinval support for both KVM Host and KVM Guest - Zihintpause support for KVM Guest - Zicbom support for KVM Guest - Record number of signal exits as a VCPU stat - Use generic guest entry infrastructure
2022-10-03Merge tag 'kvmarm-6.1' of ↵Paolo Bonzini7-12/+331
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for v6.1 - Fixes for single-stepping in the presence of an async exception as well as the preservation of PSTATE.SS - Better handling of AArch32 ID registers on AArch64-only systems - Fixes for the dirty-ring API, allowing it to work on architectures with relaxed memory ordering - Advertise the new kvmarm mailing list - Various minor cleanups and spelling fixes
2022-10-03Merge tag 'nolibc.2022.09.30a' of ↵Linus Torvalds3-0/+896
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull nolibc updates from Paul McKenney: "Most notably greatly improved testing. These tests are located in tools/testing/selftests/nolibc. The output of "make help" is as follows: Supported targets under selftests/nolibc: all call the "run" target below help this help sysroot create the nolibc sysroot here (uses $ARCH) nolibc-test build the executable (uses $CC and $CROSS_COMPILE) initramfs prepare the initramfs with nolibc-test defconfig create a fresh new default config (uses $ARCH) kernel (re)build the kernel with the initramfs (uses $ARCH) run runs the kernel in QEMU after building it (uses $ARCH, $TEST) rerun runs a previously prebuilt kernel in QEMU (uses $ARCH, $TEST) clean clean the sysroot, initramfs, build and output files The output file is "run.out". Test ranges may be passed using $TEST. Currently using the following variables: ARCH = x86 CROSS_COMPILE = CC = gcc OUTPUT = /home/git/linux-rcu/tools/testing/selftests/nolibc/ TEST = QEMU_ARCH = x86_64 [determined from $ARCH] IMAGE_NAME = bzImage [determined from $ARCH] The output of a successful x86 "make run" is currently as follows, with kernel build output omitted: $ make run 71 test(s) passed." * tag 'nolibc.2022.09.30a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: selftests/nolibc: Avoid generated files being committed selftests/nolibc: add a "help" target selftests/nolibc: "sysroot" target installs a local copy of the sysroot selftests/nolibc: add a "run" target to start the kernel in QEMU selftests/nolibc: add a "defconfig" target selftests/nolibc: add a "kernel" target to build the kernel with the initramfs selftests/nolibc: support glibc as well selftests/nolibc: condition some tests on /proc existence selftests/nolibc: recreate and populate /dev and /proc if missing selftests/nolibc: on x86, support exiting with isa-debug-exit selftests/nolibc: exit with poweroff on success when getpid() == 1 selftests/nolibc: add a few tests for some libc functions selftests/nolibc: implement a few tests for various syscalls selftests/nolibc: support a test definition format selftests/nolibc: add basic infrastructure to ease creation of nolibc tests tools/nolibc: make sys_mmap() automatically use the right __NR_mmap definition tools/nolibc: fix build warning in sys_mmap() when my_syscall6 is not defined tools/nolibc: make argc 32-bit in riscv startup code
2022-10-03selftests: mptcp: update and extend fastclose test-casesPaolo Abeni2-25/+130
After the previous patches, the MPTCP protocol can generate fast-closes on both ends of the connection. Rework the relevant test-case to carefully trigger the fast-close code-path on a single end at the time, while ensuring than a predictable amount of data is spooled on both ends. Additionally add another test-cases for the passive socket fast-close. Reviewed-by: Matthieu Baerts <[email protected]> Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-10-03Merge branch 'master' of ↵David S. Miller1-59/+45
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== 1) Refactor selftests to use an array of structs in xfrm_fill_key(). From Gautam Menghani. 2) Drop an unused argument from xfrm_policy_match. From Hongbin Wang. 3) Support collect metadata mode for xfrm interfaces. From Eyal Birger. 4) Add netlink extack support to xfrm. From Sabrina Dubroca. Please note, there is a merge conflict in: include/net/dst_metadata.h between commit: 0a28bfd4971f ("net/macsec: Add MACsec skb_metadata_dst Tx Data path support") from the net-next tree and commit: 5182a5d48c3d ("net: allow storing xfrm interface metadata in metadata_dst") from the ipsec-next tree. Can be solved as done in linux-next. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <[email protected]>
2022-10-01Merge branch kvm-arm64/misc-6.1 into kvmarm-master/nextMarc Zyngier1-4/+6
* kvm-arm64/misc-6.1: : . : Misc KVM/arm64 fixes and improvement for v6.1 : : - Simplify the affinity check when moving a GICv3 collection : : - Tone down the shouting when kvm-arm.mode=protected is passed : to a guest : : - Fix various comments : : - Advertise the new [email protected] and deprecate the : old Columbia list : . KVM: arm64: Advertise new kvmarm mailing list KVM: arm64: Fix comment typo in nvhe/switch.c KVM: selftests: Update top-of-file comment in psci_test KVM: arm64: Ignore kvm-arm.mode if !is_hyp_mode_available() KVM: arm64: vgic: Remove duplicate check in update_affinity_collection() Signed-off-by: Marc Zyngier <[email protected]>
2022-10-01Merge branch kvm-arm64/dirty-log-ordered into kvmarm-master/nextMarc Zyngier2-4/+9
* kvm-arm64/dirty-log-ordered: : . : Retrofit some ordering into the existing API dirty-ring by: : : - relying on acquire/release semantics which are the default on x86, : but need to be explicit on arm64 : : - adding a new capability that indicate which flavor is supported, either : with explicit ordering (arm64) or both implicit and explicit (x86), : as suggested by Paolo at KVM Forum : : - documenting the requirements for this new capability on weakly ordered : architectures : : - updating the selftests to do the right thing : . KVM: selftests: dirty-log: Use KVM_CAP_DIRTY_LOG_RING_ACQ_REL if available KVM: selftests: dirty-log: Upgrade flag accesses to acquire/release semantics KVM: Document weakly ordered architecture requirements for dirty ring KVM: x86: Select CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL KVM: Add KVM_CAP_DIRTY_LOG_RING_ACQ_REL capability and config option KVM: Use acquire/release semantics when accessing dirty ring GFN state Signed-off-by: Marc Zyngier <[email protected]>
2022-09-30selftests/tc-testing: update qdisc/cls/action features in configZhengchao Shao1-1/+24
Since three patchsets "add tc-testing test cases", "refactor duplicate codes in the tc cls walk function", and "refactor duplicate codes in the qdisc class walk function" are merged to net-next tree, the list of supported features needs to be updated in config file. Signed-off-by: Zhengchao Shao <[email protected]> Reviewed-by: Victor Nogueira <[email protected]> Acked-by: Jamal Hadi Salim <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2022-09-30Merge tag 'for-linus-6.0' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds7-35/+115
Pull kvm fixes from Paolo Bonzini: "A small fix to the reported set of supported CPUID bits, and selftests fixes: - Skip tests that require EPT when it is not available - Do not hang when a test fails with an empty stack trace - avoid spurious failure when running access_tracking_perf_test in a KVM guest - work around GCC's tendency to optimize loops into mem*() functions, which breaks because the guest code in selftests cannot call into PLTs - fix -Warray-bounds error in fix_hypercall_test" * tag 'for-linus-6.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: selftests: Compare insn opcodes directly in fix_hypercall_test KVM: selftests: Implement memcmp(), memcpy(), and memset() for guest use KVM: x86: Hide IA32_PLATFORM_DCA_CAP[31:0] from the guest KVM: selftests: Gracefully handle empty stack traces KVM: selftests: replace assertion with warning in access_tracking_perf_test KVM: selftests: Skip tests that require EPT when it is not available
2022-09-30selftests/xsk: Fix double freeMagnus Karlsson1-3/+0
Fix a double free at exit of the test suite. Fixes: a693ff3ed561 ("selftests/xsk: Add support for executing tests on physical device") Signed-off-by: Magnus Karlsson <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Maciej Fijalkowski <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]