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2018-12-27Merge tag 'powerpc-4.21-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Notable changes: - Mitigations for Spectre v2 on some Freescale (NXP) CPUs. - A large series adding support for pass-through of Nvidia V100 GPUs to guests on Power9. - Another large series to enable hardware assistance for TLB table walk on MPC8xx CPUs. - Some preparatory changes to our DMA code, to make way for further cleanups from Christoph. - Several fixes for our Transactional Memory handling discovered by fuzzing the signal return path. - Support for generating our system call table(s) from a text file like other architectures. - A fix to our page fault handler so that instead of generating a WARN_ON_ONCE, user accesses of kernel addresses instead print a ratelimited and appropriately scary warning. - A cosmetic change to make our unhandled page fault messages more similar to other arches and also more compact and informative. - Freescale updates from Scott: "Highlights include elimination of legacy clock bindings use from dts files, an 83xx watchdog handler, fixes to old dts interrupt errors, and some minor cleanup." And many clean-ups, reworks and minor fixes etc. Thanks to: Alexandre Belloni, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Benjamin Herrenschmidt, Breno Leitao, Christian Lamparter, Christophe Leroy, Christoph Hellwig, Daniel Axtens, Darren Stevens, David Gibson, Diana Craciun, Dmitry V. Levin, Firoz Khan, Geert Uytterhoeven, Greg Kurz, Gustavo Romero, Hari Bathini, Joel Stanley, Kees Cook, Madhavan Srinivasan, Mahesh Salgaonkar, Markus Elfring, Mathieu Malaterre, Michal Suchánek, Naveen N. Rao, Nick Desaulniers, Oliver O'Halloran, Paul Mackerras, Ram Pai, Ravi Bangoria, Rob Herring, Russell Currey, Sabyasachi Gupta, Sam Bobroff, Satheesh Rajendran, Scott Wood, Segher Boessenkool, Stephen Rothwell, Tang Yuantian, Thiago Jung Bauermann, Yangtao Li, Yuantian Tang, Yue Haibing" * tag 'powerpc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (201 commits) Revert "powerpc/fsl_pci: simplify fsl_pci_dma_set_mask" powerpc/zImage: Also check for stdout-path powerpc: Fix HMIs on big-endian with CONFIG_RELOCATABLE=y macintosh: Use of_node_name_{eq, prefix} for node name comparisons ide: Use of_node_name_eq for node name comparisons powerpc: Use of_node_name_eq for node name comparisons powerpc/pseries/pmem: Convert to %pOFn instead of device_node.name powerpc/mm: Remove very old comment in hash-4k.h powerpc/pseries: Fix node leak in update_lmb_associativity_index() powerpc/configs/85xx: Enable CONFIG_DEBUG_KERNEL powerpc/dts/fsl: Fix dtc-flagged interrupt errors clk: qoriq: add more compatibles strings powerpc/fsl: Use new clockgen binding powerpc/83xx: handle machine check caused by watchdog timer powerpc/fsl-rio: fix spelling mistake "reserverd" -> "reserved" powerpc/fsl_pci: simplify fsl_pci_dma_set_mask arch/powerpc/fsl_rmu: Use dma_zalloc_coherent vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver vfio_pci: Allow regions to add own capabilities vfio_pci: Allow mapping extra regions ...
2018-12-26Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "The main changes in this cycle on the kernel side: - rework kprobes blacklist handling (Masami Hiramatsu) - misc cleanups on the tooling side these areas were the main focus: - 'perf trace' enhancements (Arnaldo Carvalho de Melo) - 'perf bench' enhancements (Davidlohr Bueso) - 'perf record' enhancements (Alexey Budankov) - 'perf annotate' enhancements (Jin Yao) - 'perf top' enhancements (Jiri Olsa) - Intel hw tracing enhancements (Adrian Hunter) - ARM hw tracing enhancements (Leo Yan, Mathieu Poirier) - ... plus lots of other enhancements, cleanups and fixes" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (171 commits) tools uapi asm: Update asm-generic/unistd.h copy perf symbols: Relax checks on perf-PID.map ownership perf trace: Wire up the fadvise 'advice' table generator perf beauty: Add generator for fadvise64's 'advice' arg constants tools headers uapi: Grab a copy of fadvise.h perf beauty mmap: Print mmap's 'offset' arg in hexadecimal perf beauty mmap: Print PROT_READ before PROT_EXEC to match strace output perf trace beauty: Beautify arch_prctl()'s arguments perf trace: When showing string prefixes show prefix + ??? for unknown entries perf trace: Move strarrays to beauty.h for further reuse perf beauty: Wire up the x86_arch prctl code table generator perf beauty: Add a string table generator for x86's 'arch_prctl' codes tools include arch: Grab a copy of x86's prctl.h perf trace: Show NULL when syscall pointer args are 0 perf trace: Enclose the errno strings with () perf augmented_raw_syscalls: Copy 'access' arg as well perf trace: Add alignment spaces after the closing parens perf trace beauty: Print O_RDONLY when (flags & O_ACCMODE) == 0 perf trace: Allow asking for not suppressing common string prefixes perf trace: Add a prefix member to the strarray class ...
2018-12-26Merge branch 'locking-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "The main change in this cycle are initial preparatory bits of dynamic lockdep keys support from Bart Van Assche. There are also misc changes, a comment cleanup and a data structure cleanup" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: Clean up comment in nohz_idle_balance() locking/lockdep: Stop using RCU primitives to access 'all_lock_classes' locking/lockdep: Make concurrent lockdep_reset_lock() calls safe locking/lockdep: Remove a superfluous INIT_LIST_HEAD() statement locking/lockdep: Introduce lock_class_cache_is_registered() locking/lockdep: Inline __lockdep_init_map() locking/lockdep: Declare local symbols static tools/lib/lockdep/tests: Test the lockdep_reset_lock() implementation tools/lib/lockdep: Add dummy print_irqtrace_events() implementation tools/lib/lockdep: Rename "trywlock" into "trywrlock" tools/lib/lockdep/tests: Run lockdep tests a second time under Valgrind tools/lib/lockdep/tests: Improve testing accuracy tools/lib/lockdep/tests: Fix shellcheck warnings tools/lib/lockdep/tests: Display compiler warning and error messages locking/lockdep: Remove ::version from lock_class structure
2018-12-26Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The biggest RCU changes in this cycle were: - Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar. - Replace calls of RCU-bh and RCU-sched update-side functions to their vanilla RCU counterparts. This series is a step towards complete removal of the RCU-bh and RCU-sched update-side functions. ( Note that some of these conversions are going upstream via their respective maintainers. ) - Documentation updates, including a number of flavor-consolidation updates from Joel Fernandes. - Miscellaneous fixes. - Automate generation of the initrd filesystem used for rcutorture testing. - Convert spin_is_locked() assertions to instead use lockdep. ( Note that some of these conversions are going upstream via their respective maintainers. ) - SRCU updates, especially including a fix from Dennis Krein for a bag-on-head-class bug. - RCU torture-test updates" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (112 commits) rcutorture: Don't do busted forward-progress testing rcutorture: Use 100ms buckets for forward-progress callback histograms rcutorture: Recover from OOM during forward-progress tests rcutorture: Print forward-progress test age upon failure rcutorture: Print time since GP end upon forward-progress failure rcutorture: Print histogram of CB invocation at OOM time rcutorture: Print GP age upon forward-progress failure rcu: Print per-CPU callback counts for forward-progress failures rcu: Account for nocb-CPU callback counts in RCU CPU stall warnings rcutorture: Dump grace-period diagnostics upon forward-progress OOM rcutorture: Prepare for asynchronous access to rcu_fwd_startat torture: Remove unnecessary "ret" variables rcutorture: Affinity forward-progress test to avoid housekeeping CPUs rcutorture: Break up too-long rcu_torture_fwd_prog() function rcutorture: Remove cbflood facility torture: Bring any extra CPUs online during kernel startup rcutorture: Add call_rcu() flooding forward-progress tests rcutorture/formal: Replace synchronize_sched() with synchronize_rcu() tools/kernel.h: Replace synchronize_sched() with synchronize_rcu() net/decnet: Replace rcu_barrier_bh() with rcu_barrier() ...
2018-12-26Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Paolo Bonzini: "ARM: - selftests improvements - large PUD support for HugeTLB - single-stepping fixes - improved tracing - various timer and vGIC fixes x86: - Processor Tracing virtualization - STIBP support - some correctness fixes - refactorings and splitting of vmx.c - use the Hyper-V range TLB flush hypercall - reduce order of vcpu struct - WBNOINVD support - do not use -ftrace for __noclone functions - nested guest support for PAUSE filtering on AMD - more Hyper-V enlightenments (direct mode for synthetic timers) PPC: - nested VFIO s390: - bugfixes only this time" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits) KVM: x86: Add CPUID support for new instruction WBNOINVD kvm: selftests: ucall: fix exit mmio address guessing Revert "compiler-gcc: disable -ftracer for __noclone functions" KVM: VMX: Move VM-Enter + VM-Exit handling to non-inline sub-routines KVM: VMX: Explicitly reference RCX as the vmx_vcpu pointer in asm blobs KVM: x86: Use jmp to invoke kvm_spurious_fault() from .fixup MAINTAINERS: Add arch/x86/kvm sub-directories to existing KVM/x86 entry KVM/x86: Use SVM assembly instruction mnemonics instead of .byte streams KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range() KVM/MMU: Flush tlb directly in kvm_set_pte_rmapp() KVM/MMU: Move tlb flush in kvm_set_pte_rmapp() to kvm_mmu_notifier_change_pte() KVM: Make kvm_set_spte_hva() return int KVM: Replace old tlb flush function with new one to flush a specified range. KVM/MMU: Add tlb flush with range helper function KVM/VMX: Add hv tlb range flush support x86/hyper-v: Add HvFlushGuestAddressList hypercall support KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops KVM: x86: Disable Intel PT when VMXON in L1 guest KVM: x86: Set intercept for Intel PT MSRs read/write KVM: x86: Implement Intel PT MSRs read/write emulation ...
2018-12-25Merge tag 'acpi-4.21-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These update the ACPICA code in the kernel to the 20181213 upstream revision, make it possible to build the ACPI subsystem without PCI support, and a new OEM _OSI string, add a new device support to the ACPI driver for AMD SoCs and fix PM handling in the ACPI driver for Intel SoCs, fix the SPCR table handling and do some assorted fixes and cleanups. Specifics: - Update the ACPICA code in the kernel to the 20181213 upstream revision including: * New Windows _OSI strings (Bob Moore, Jung-uk Kim). * Buffers-to-string conversions update (Bob Moore). * Removal of support for expressions in package elements (Bob Moore). * New option to display method/object evaluation in debug output (Bob Moore). * Compiler improvements (Bob Moore, Erik Schmauss). * Minor debugger fix (Erik Schmauss). * Disassembler improvement (Erik Schmauss). * Assorted cleanups (Bob Moore, Colin Ian King, Erik Schmauss). - Add support for a new OEM _OSI string to indicate special handling of secondary graphics adapters on some systems (Alex Hung). - Make it possible to build the ACPI subystem without PCI support (Sinan Kaya). - Make the SPCR table handling regard baud rate 0 in accordance with the specification of it and make the DSDT override code support DSDT code names generated by recent ACPICA (Andy Shevchenko, Wang Dongsheng, Nathan Chancellor). - Add clock frequency for Hisilicon Hip08 SPI controller to the ACPI driver for AMD SoCs (APD) (Jay Fang). - Fix the PM handling during device init in the ACPI driver for Intel SoCs (LPSS) (Hans de Goede). - Avoid double panic()s by clearing the APEI GHES block_status before panic() (Lenny Szubowicz). - Clean up a function invocation in the ACPI core and get rid of some code duplication by using the DEFINE_SHOW_ATTRIBUTE macro in the APEI support code (Alexey Dobriyan, Yangtao Li)" * tag 'acpi-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (31 commits) ACPI / tables: Add an ifdef around amlcode and dsdt_amlcode ACPI/APEI: Clear GHES block_status before panic() ACPI: Make PCI slot detection driver depend on PCI ACPI/IORT: Stub out ACS functions when CONFIG_PCI is not set arm64: select ACPI PCI code only when both features are enabled PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set ACPICA: Remove PCI bits from ACPICA when CONFIG_PCI is unset ACPI: Allow CONFIG_PCI to be unset for reboot ACPI: Move PCI reset to a separate function ACPI / OSI: Add OEM _OSI string to enable dGPU direct output ACPI / tables: add DSDT AmlCode new declaration name support ACPICA: Update version to 20181213 ACPICA: change coding style to match ACPICA, no functional change ACPICA: Debug output: Add option to display method/object evaluation ACPICA: disassembler: disassemble OEMx tables as AML ACPICA: Add "Windows 2018.2" string in the _OSI support ACPICA: Expressions in package elements are not supported ACPICA: Update buffer-to-string conversions ACPICA: add comments, no functional change ACPICA: Remove defines that use deprecated flag ...
2018-12-25Merge tag 'pm-4.21-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These add sysadmin documentation for cpuidle, extend the cpuidle subsystem somewhat, improve the handling of performance states in the generic power domains (genpd) and operating performance points (OPP) frameworks, add a new cpufreq driver for Qualcomm SoCs, update some other cpufreq drivers, switch over the runtime PM framework to using high-res timers for device autosuspend, fix a problem with suspend-to-idle on ACPI-based platforms, add system-wide suspend and resume handling to the devfreq framework, do some janitorial cleanups all over and update some utilities. Specifics: - Add sysadmin documentation for cpuidle (Rafael Wysocki). - Make it possible to specify a cpuidle governor from kernel command line, add new cpuidle state sysfs attributes for governor evaluation, and improve the "polling" idle state handling (Rafael Wysocki). - Fix the handling of the "required-opps" DT property in the operating performance points (OPP) framework, improve the integration of it with the generic power domains (genpd) framework, improve the handling of performance states in them and clean up the idle states vs performance states separation in genpd (Viresh Kumar, Ulf Hansson). - Add a cpufreq driver called "qcom-hw" for Qualcomm SoCs using a hardware engine to control CPU frequency transitions along with DT bindings for it (Taniya Das). - Fix an intel_pstate driver issue related to CPU offline and update the documentation of it (Srinivas Pandruvada). - Clean up the imx6q cpufreq driver (Anson Huang). - Add SPDX license IDs to cpufreq schedutil governor files (Daniel Lezcano). - Switch over the runtime PM framework to using high-res timers for device autosuspend to allow the control of it to be more precise (Vincent Guittot). - Disable non-wakeup ACPI GPEs during suspend-to-idle so that they don't prevent the system from reaching the target low-power state and simplify the suspend-to-idle handling on ACPI platforms without full Low-Power S0 Idle (LPS0) support (Rafael Wysocki). - Add system-wide suspend and resume support to the devfreq framework (Lukasz Luba). - Clean up the SmartReflex adaptive voltage scaling (AVS) driver and add an SPDX license ID to it (Nishanth Menon, Uwe Kleine-König, Thomas Meyer). - Get rid of code duplication by using the DEFINE_SHOW_ATTRIBUTE macro in some places, fix some DT node refcount leaks, and do some other janitorial cleanups (Yangtao Li). - Update the cpupower, intel_pstate_tracer and turbosat utilities (Abhishek Goel, Doug Smythies, Len Brown)" * tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits) PM / Domains: remove define_genpd_open_function() and define_genpd_debugfs_fops() PM-runtime: Switch autosuspend over to using hrtimers cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver dt-bindings: cpufreq: Introduce QCOM cpufreq firmware bindings ACPI: PM: Loop in full LPS0 mode only ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle tools/power/x86/intel_pstate_tracer: Fix non root execution for post processing a trace file tools/power turbostat: consolidate duplicate model numbers tools/power turbostat: fix goldmont C-state limit decoding PM / Domains: Propagate performance state updates PM / Domains: Factorize dev_pm_genpd_set_performance_state() PM / Domains: Save OPP table pointer in genpd OPP: Don't return 0 on error from of_get_required_opp_performance_state() OPP: Add dev_pm_opp_xlate_performance_state() helper OPP: Improve _find_table_of_opp_np() PM / Domains: Make genpd performance states orthogonal to the idlestates PM / sleep: convert to DEFINE_SHOW_ATTRIBUTE cpuidle: Add 'above' and 'below' idle state metrics PM / AVS: SmartReflex: Switch to SPDX Licence ID PM / AVS: SmartReflex: NULL check before some freeing functions is not needed ...
2018-12-21tools/testing/nvdimm: add Intel DSM 1.8 support for nfit_testDave Jiang
Adding test support for new Intel DSM from v1.8. The ability of simulating master passphrase update and master secure erase have been added to nfit_test. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-12-21tools/testing/nvdimm: Add overwrite support for nfit_testDave Jiang
With the implementation of Intel NVDIMM DSM overwrite, we are adding unit test to nfit_test for testing of overwrite operation. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-12-21tools/testing/nvdimm: Add test support for Intel nvdimm security DSMsDave Jiang
Add nfit_test support for DSM functions "Get Security State", "Set Passphrase", "Disable Passphrase", "Unlock Unit", "Freeze Lock", and "Secure Erase" for the fake DIMMs. Also adding a sysfs knob in order to put the DIMMs in "locked" state. The order of testing DIMM unlocking would be. 1a. Disable DIMM X. 1b. Set Passphrase to DIMM X. 2. Write to /sys/devices/platform/nfit_test.0/nfit_test_dimm/test_dimmX/lock_dimm 3. Renable DIMM X 4. Check DIMM X state via sysfs "security" attribute for nmemX. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-12-21bpf: fix segfault in test_verifier selftestDaniel Borkmann
Minor fallout from merge resolution, test_verifier was segfaulting because the REJECT result was correct, but errstr was NULL. Properly fix it as in 339bbff2d6e0. Fixes: 339bbff2d6e0 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-21kvm: selftests: ucall: fix exit mmio address guessingAndrew Jones
Fix two more bugs in the exit_mmio address guessing. The first bug was that the start and step calculations were wrong since they were dividing the number of address bits instead of the address space. The second other bug was that the guessing algorithm wasn't considering the valid physical and virtual address ranges correctly for an identity map. Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-21perf trace: Do not hardcode the size of the tracepoint common_ fieldsArnaldo Carvalho de Melo
We shouldn't hardcode the size of the tracepoint common_ fields, use the offset of the 'id'/'__syscallnr' field in the sys_enter event instead. This caused the augmented syscalls code to fail on a particular build of a PREEMPT_RT_FULL kernel where these extra 'common_migrate_disable' and 'common_padding' fields were before the syscall id one: # cat /sys/kernel/debug/tracing/events/raw_syscalls/sys_enter/format name: sys_enter ID: 22 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:unsigned short common_migrate_disable; offset:8; size:2; signed:0; field:unsigned short common_padding; offset:10; size:2; signed:0; field:long id; offset:16; size:8; signed:1; field:unsigned long args[6]; offset:24; size:48; signed:0; print fmt: "NR %ld (%lx, %lx, %lx, %lx, %lx, %lx)", REC->id, REC->args[0], REC->args[1], REC->args[2], REC->args[3], REC->args[4], REC->args[5] # All those 'common_' prefixed fields are zeroed when they hit a BPF tracepoint hook, we better just discard those, i.e. somehow pass an offset to the BPF program from the start of the ctx and make adjustments in the 'perf trace' handlers to adjust the offset of the syscall arg offsets obtained from tracefs. Till then, fix it the quick way and add this to the augmented_raw_syscalls.c to bet it to work in such kernels: diff --git a/tools/perf/examples/bpf/augmented_raw_syscalls.c b/tools/perf/examples/bpf/augmented_raw_syscalls.c index 53c233370fae..1f746f931e13 100644 --- a/tools/perf/examples/bpf/augmented_raw_syscalls.c +++ b/tools/perf/examples/bpf/augmented_raw_syscalls.c @@ -38,12 +38,14 @@ struct bpf_map SEC("maps") syscalls = { struct syscall_enter_args { unsigned long long common_tp_fields; + long rt_common_tp_fields; long syscall_nr; unsigned long args[6]; }; struct syscall_exit_args { unsigned long long common_tp_fields; + long rt_common_tp_fields; long syscall_nr; long ret; }; Just to check that this was the case. Fix it properly later, for now remove the hardcoding of the offset in the 'perf trace' side and document the situation with this patch. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-2pqavrktqkliu5b9nzouio21@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-21perf build: Don't unconditionally link the libbfd feature test to -liberty ↵Stanislav Fomichev
and -lz Current libbfd feature test unconditionally links against -liberty and -lz. While it's required on some systems (e.g. opensuse), it's completely unnecessary on the others, where only -lbdf is sufficient (debian). This patch streamlines (and renames) the following feature checks: feature-libbfd - only link against -lbfd (debian), see commit 2cf9040714f3 ("perf tools: Fix bfd dependency libraries detection") feature-libbfd-liberty - link against -lbfd and -liberty feature-libbfd-liberty-z - link against -lbfd, -liberty and -lz (opensuse), see commit 280e7c48c3b8 ("perf tools: fix BFD detection on opensuse") (feature-liberty{,-z} were renamed to feature-libbfd-liberty{,z} for clarity) The main motivation is to fix this feature test for bpftool which is currently broken on debian (libbfd feature shows OFF, but we still unconditionally link against -lbfd and it works). Tested on debian with only -lbfd installed (without -liberty); I'd appreciate if somebody on the other systems can test this new detection method. Signed-off-by: Stanislav Fomichev <sdf@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/4dfc634cfcfb236883971b5107cf3c28ec8a31be.1542328222.git.sdf@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-21perf beauty mmap: PROT_WRITE should come before PROT_EXECArnaldo Carvalho de Melo
To match strace output: # cat mmap.c #include <sys/mman.h> int main(void) { mmap(0, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); return 0; } # strace -e mmap ./mmap |& grep -v ^+++ mmap(NULL, 103484, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f5bae400000 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5bae3fe000 mmap(NULL, 3889792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5bade40000 mmap(0x7f5bae1ec000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0x7f5bae1ec000 mmap(0x7f5bae1f2000, 14976, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5bae1f2000 mmap(NULL, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5bae419000 # trace -e mmap ./mmap |& grep -v ^+++ mmap(NULL, 103484, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f6646c25000 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS) = 0x7f6646c23000 mmap(NULL, 3889792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6646665000 mmap(0x7f6646a11000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0x7f6646a11000 mmap(0x7f6646a17000, 14976, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS) = 0x7f6646a17000 mmap(NULL, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS) = 0x7f6646c3e000 # Reported-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-nt49d6iqle80cw8f529ovaqi@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-21perf trace: Check if the raw_syscalls:sys_{enter,exit} are setup before ↵Arnaldo Carvalho de Melo
setting tp filter While updating 'perf trace' on an machine with an old precompiled augmented_raw_syscalls.o that didn't setup the syscall map the new 'perf trace' codebase notices the augmented_raw_syscalls.o eBPF event, decides to use it instead of the old raw_syscalls:sys_{enter,exit} method, but then because we don't have the syscall map tries to set the tracepoint filter on the sys_{enter,exit} evsels, that are NULL, segfaulting. Make the code more robust by checking it those tracepoints have their respective evsels in place before trying to set the tp filter. With this we still get everything to work, just not setting up the syscall filters, which is better than a segfault. Now to update the precompiled augmented_raw_syscalls.o and continue development :-) Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-3ft5rjdl05wgz2pwpx2z8btu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-21kvm: selftests: aarch64: dirty_log_test: support greater than 40-bit IPAsAndrew Jones
When KVM has KVM_CAP_ARM_VM_IPA_SIZE we can test with > 40-bit IPAs by using the 'type' field of KVM_CREATE_VM. Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21kvm: selftests: add pa-48/va-48 VM modesAndrew Jones
Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21kvm: selftests: dirty_log_test: improve mode param managementAndrew Jones
Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21kvm: selftests: dirty_log_test: reset guest test phys offsetAndrew Jones
We need to reset the offset for each mode as it will change depending on the number of guest physical address bits. Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21kvm: selftests: dirty_log_test: always use -tAndrew Jones
There's no reason not to always test the topmost physical addresses, and if the user wants to try lower addresses then '-p' (used to be '-o before this patch) can be used. Let's remove the '-t' option and just always do what it did. Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21kvm: selftests: dirty_log_test: don't identity map the test memAndrew Jones
It isn't necessary and can even cause problems when testing high guest physical addresses. This patch leaves the test memory id- mapped by default, but when using '-t' the test memory virtual addresses stay the same even though the physical addresses switch to the topmost valid addresses. Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21kvm: selftests: x86_64: dirty_log_test: fix -tAndrew Jones
Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21selftests: kvm: report failed stage when exit reason is unexpectedVitaly Kuznetsov
When we get a report like ==== Test Assertion Failure ==== x86_64/state_test.c:157: run->exit_reason == KVM_EXIT_IO pid=955 tid=955 - Success 1 0x0000000000401350: main at state_test.c:154 2 0x00007fc31c9e9412: ?? ??:0 3 0x000000000040159d: _start at ??:? Unexpected exit reason: 8 (SHUTDOWN), it is not obvious which particular stage failed. Add the info. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-12-21Merge branch 'acpica'Rafael J. Wysocki
* acpica: ACPICA: Update version to 20181213 ACPICA: change coding style to match ACPICA, no functional change ACPICA: Debug output: Add option to display method/object evaluation ACPICA: disassembler: disassemble OEMx tables as AML ACPICA: Add "Windows 2018.2" string in the _OSI support ACPICA: Expressions in package elements are not supported ACPICA: Update buffer-to-string conversions ACPICA: add comments, no functional change ACPICA: Remove defines that use deprecated flag ACPICA: Add "Windows 2018" string in the _OSI support ACPICA: Update version to 20181031 ACPICA: iASL: Enhance error detection ACPICA: iASL: adding definition and disassembly for TPM2 revision 3 ACPICA: Use %d for signed int print formatting instead of %u ACPICA: Debugger: refactor to fix unused variable warning
2018-12-21selftests/powerpc: Add checks for transactional sigreturnBreno Leitao
This is a new test case that creates a signal and starts a suspended transaction inside the signal handler. It returns from the signal handler with the CPU at suspended state, but without setting user context MSR Transaction State (TS) field. The kernel signal handler code should be able to handle this discrepancy instead of crashing. This code could be compiled and used to test 32 and 64-bits signal handlers. Signed-off-by: Breno Leitao <leitao@debian.org> Signed-off-by: Gustavo Romero <gromero@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-12-20selftests: net: reuseport_addr_any: silence clang warningPeter Oskolkov
Clang does not recognize that calls to error() terminate execution and complains about uninitialized variable use that happens after calls to error(). This noop patchset fixes this. Signed-off-by: Peter Oskolkov <posk@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-12-21 The following pull-request contains BPF updates for your *net-next* tree. There is a merge conflict in test_verifier.c. Result looks as follows: [...] }, { "calls: cross frame pruning", .insns = { [...] .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, .errstr_unpriv = "function calls to other bpf functions are allowed for root only", .result_unpriv = REJECT, .errstr = "!read_ok", .result = REJECT, }, { "jset: functional", .insns = { [...] { "jset: unknown const compare not taken", .insns = { BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32), BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1), BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, .errstr_unpriv = "!read_ok", .result_unpriv = REJECT, .errstr = "!read_ok", .result = REJECT, }, [...] { "jset: range", .insns = { [...] }, .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, .result_unpriv = ACCEPT, .result = ACCEPT, }, The main changes are: 1) Various BTF related improvements in order to get line info working. Meaning, verifier will now annotate the corresponding BPF C code to the error log, from Martin and Yonghong. 2) Implement support for raw BPF tracepoints in modules, from Matt. 3) Add several improvements to verifier state logic, namely speeding up stacksafe check, optimizations for stack state equivalence test and safety checks for liveness analysis, from Alexei. 4) Teach verifier to make use of BPF_JSET instruction, add several test cases to kselftests and remove nfp specific JSET optimization now that verifier has awareness, from Jakub. 5) Improve BPF verifier's slot_type marking logic in order to allow more stack slot sharing, from Jiong. 6) Add sk_msg->size member for context access and add set of fixes and improvements to make sock_map with kTLS usable with openssl based applications, from John. 7) Several cleanups and documentation updates in bpftool as well as auto-mount of tracefs for "bpftool prog tracelog" command, from Quentin. 8) Include sub-program tags from now on in bpf_prog_info in order to have a reliable way for user space to get all tags of the program e.g. needed for kallsyms correlation, from Song. 9) Add BTF annotations for cgroup_local_storage BPF maps and implement bpf fs pretty print support, from Roman. 10) Fix bpftool in order to allow for cross-compilation, from Ivan. 11) Update of bpftool license to GPLv2-only + BSD-2-Clause in order to be compatible with libbfd and allow for Debian packaging, from Jakub. 12) Remove an obsolete prog->aux sanitation in dump and get rid of version check for prog load, from Daniel. 13) Fix a memory leak in libbpf's line info handling, from Prashant. 14) Fix cpumap's frame alignment for build_skb() so that skb_shared_info does not get unaligned, from Jesper. 15) Fix test_progs kselftest to work with older compilers which are less smart in optimizing (and thus throwing build error), from Stanislav. 16) Cleanup and simplify AF_XDP socket teardown, from Björn. 17) Fix sk lookup in BPF kselftest's test_sock_addr with regards to netns_id argument, from Andrey. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: add txtimestamp kselftestWillem de Bruijn
Run the transmit timestamp tests as part of kselftests. Add a txtimestamp.sh test script that runs most variants: ipv4/ipv6, tcp/udp/raw/raw_ipproto/pf_packet, data/nodata, setsockopt/cmsg. The script runs tests with netem delays. Refine txtimestamp.c to validate results. Take expected netem delays as input and compare against real timestamps. To run without dependencies, add a listener socket to be able to connect in the case of TCP. Add the timestamping directory to the kselftests Makefile. Build all the binaries. Only run verified txtimestamp.sh. Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: expand txtimestamp with ipv6 dgram + raw and pf_packetWillem de Bruijn
Expand the transmit timestamp regression test with support for missing protocols: ipv6 datagram and raw and pf_packet. Also refine resolve_hostname to independently request AF_INET or AF_INET6 addresses. Else, ipv4 addresses may be returned as AF_INET6. Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: expand txtimestamp with cmsg supportWillem de Bruijn
Commit 3dd17e63f513 ("sock: accept SO_TIMESTAMPING flags in socket cmsg") added support for passing tx timestamping options per-call in sendmsg. Expand the txtimestamp test with support for this feature. Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: rtnetlink: Add a test case for multipath route getIdo Schimmel
Without previous patch a warning would be generated upon multipath route get when FIB multipath hash policy is to use a 5-tuple for multipath hash calculation. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: forwarding: Add router test with VID 1Ido Schimmel
Previous patches made it possible to setup VLAN devices with VID 1 over mlxsw ports. Verify this functionality actually works by conducting a simple router test over VID 1. Adding this test as a generic test since it can be run using veth pairs and it can also be useful for other physical devices where VID 1 was considered reserved (knowingly or not). Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: mlxsw: Adjust test regarding VID 1Ido Schimmel
Previous patches made it possible to create VLAN devices with VID 1 over mlxsw ports. Adjust the test to verify such an operation succeeds. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: mlxsw: Add a test case for L3 VNIIdo Schimmel
Previous patch added the ability to offload a VXLAN tunnel used for L3 VNI when it is present in the VLAN-aware bridge before the corresponding VLAN interface is configured. This patch adds a test case to verify that. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20bpf: sk_msg, fix sk_msg_md access past end testJohn Fastabend
Currently, the test to ensure reads past the end of the sk_msg_md data structure fail is incorrectly expecting success. Fix this typo and use correct expected error. Fixes: 945a47d87cee ("bpf: sk_msg, add tests for size field") Reported-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Lots of conflicts, by happily all cases of overlapping changes, parallel adds, things of that nature. Thanks to Stephen Rothwell, Saeed Mahameed, and others for their guidance in these resolutions. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20selftests: bpf: add missing executables to .gitignoreJakub Kicinski
commit 435f90a338ae ("selftests/bpf: add a test case for sock_ops perf-event notification") missed adding new test to gitignore. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-20selftests: bpf: verifier: add tests for JSET interpretationJakub Kicinski
Validate that the verifier reasons correctly about the bounds and removes dead code based on results of JSET instruction. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-20selftests: bpf: add trivial JSET testsJakub Kicinski
We seem to have no JSET instruction test, and LLVM does not generate it at all, so let's add a simple hand-coded test to make sure JIT implementations are correct. v2: - extend test_verifier to handle multiple inputs and add the sample there (Daniel) - add a sign extension case Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-20powerpc/perf: Update perf_regs structure to include SIERMadhavan Srinivasan
On each sample, Sample Instruction Event Register (SIER) content is saved in pt_regs. SIER does not have a entry as-is in the pt_regs but instead, SIER content is saved in the "dar" register of pt_regs. Patch adds another entry to the perf_regs structure to include the "SIER" printing which internally maps to the "dar" of pt_regs. It also check for the SIER availability in the platform and present value accordingly Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-12-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Off by one in netlink parsing of mac802154_hwsim, from Alexander Aring. 2) nf_tables RCU usage fix from Taehee Yoo. 3) Flow dissector needs nhoff and thoff clamping, from Stanislav Fomichev. 4) Missing sin6_flowinfo initialization in SCTP, from Xin Long. 5) Spectrev1 in ipmr and ip6mr, from Gustavo A. R. Silva. 6) Fix r8169 crash when DEBUG_SHIRQ is enabled, from Heiner Kallweit. 7) Fix SKB leak in rtlwifi, from Larry Finger. 8) Fix state pruning in bpf verifier, from Jakub Kicinski. 9) Don't handle completely duplicate fragments as overlapping, from Michal Kubecek. 10) Fix memory corruption with macb and 64-bit DMA, from Anssi Hannula. 11) Fix TCP fallback socket release in smc, from Myungho Jung. 12) gro_cells_destroy needs to napi_disable, from Lorenzo Bianconi. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (130 commits) rds: Fix warning. neighbor: NTF_PROXY is a valid ndm_flag for a dump request net: mvpp2: fix the phylink mode validation net/sched: cls_flower: Remove old entries from rhashtable net/tls: allocate tls context using GFP_ATOMIC iptunnel: make TUNNEL_FLAGS available in uapi gro_cell: add napi_disable in gro_cells_destroy lan743x: Remove MAC Reset from initialization net/mlx5e: Remove the false indication of software timestamping support net/mlx5: Typo fix in del_sw_hw_rule net/mlx5e: RX, Fix wrong early return in receive queue poll ipv6: explicitly initialize udp6_addr in udp_sock_create6() bnxt_en: Fix ethtool self-test loopback. net/rds: remove user triggered WARN_ON in rds_sendmsg net/rds: fix warn in rds_message_alloc_sgs ath10k: skip sending quiet mode cmd for WCN3990 mac80211: free skb fraglist before freeing the skb nl80211: fix memory leak if validate_pae_over_nl80211() fails net/smc: fix TCP fallback socket release vxge: ensure data0 is initialized in when fetching firmware version information ...
2018-12-19selftests: net: refactor reuseport_addr_any testPeter Oskolkov
This patch refactors reuseport_add_any selftest a bit: - makes it more modular (eliminates several copy/pasted blocks); - skips DCCP tests if DCCP is not supported V2: added "Signed-off-by" tag. Signed-off-by: Peter Oskolkov <posk@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-19bpf: Add BPF_LD_IMM64 to the line_info testMartin KaFai Lau
This patch adds a BPF_LD_IMM64 case to the line_info test to ensure the kernel rejects linfo_info.insn_off pointing to the 2nd 8 bytes of the BPF_LD_IMM64. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-12-19virtio: fix test build after uio.h changeMichael S. Tsirkin
Fixes: d38499530e5 ("fs: decouple READ and WRITE from the block layer ops") Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-12-19selftests: rtnetlink.sh: add testcase for neigh getRoopa Prabhu
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Reviewed-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-19tools: bpftool: do not force gcc as CCIvan Babrou
This allows transparent cross-compilation with CROSS_COMPILE by relying on 7ed1c1901fe5 ("tools: fix cross-compile var clobbering"). Signed-off-by: Ivan Babrou <ivan@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-12-19selftests: mlxsw: Add rtnetlink testsIdo Schimmel
Add a new test that is focused on rtnetlink configuration. Its purpose is to test valid and invalid (as deemed by mlxsw) configurations and make sure that they succeed / fail without producing a trace. Some of the test cases are derived from recent fixes in order to make sure that the fixed bugs are not introduced again. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-18selftests: net: Add test_vxlan_fdb_changelink.shPetr Machata
Add a test to exercise the fix from the previous patch. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-19bpf: sk_msg, add tests for size fieldJohn Fastabend
This adds tests to read the size field to test_verifier. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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