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2019-07-09Merge tag 'docs-5.3' of git://git.lwn.net/linuxLinus Torvalds1-1/+1
Pull Documentation updates from Jonathan Corbet: "It's been a relatively busy cycle for docs: - A fair pile of RST conversions, many from Mauro. These create more than the usual number of simple but annoying merge conflicts with other trees, unfortunately. He has a lot more of these waiting on the wings that, I think, will go to you directly later on. - A new document on how to use merges and rebases in kernel repos, and one on Spectre vulnerabilities. - Various improvements to the build system, including automatic markup of function() references because some people, for reasons I will never understand, were of the opinion that :c:func:``function()`` is unattractive and not fun to type. - We now recommend using sphinx 1.7, but still support back to 1.4. - Lots of smaller improvements, warning fixes, typo fixes, etc" * tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits) docs: automarkup.py: ignore exceptions when seeking for xrefs docs: Move binderfs to admin-guide Disable Sphinx SmartyPants in HTML output doc: RCU callback locks need only _bh, not necessarily _irq docs: format kernel-parameters -- as code Doc : doc-guide : Fix a typo platform: x86: get rid of a non-existent document Add the RCU docs to the core-api manual Documentation: RCU: Add TOC tree hooks Documentation: RCU: Rename txt files to rst Documentation: RCU: Convert RCU UP systems to reST Documentation: RCU: Convert RCU linked list to reST Documentation: RCU: Convert RCU basic concepts to reST docs: filesystems: Remove uneeded .rst extension on toctables scripts/sphinx-pre-install: fix out-of-tree build docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/ Documentation: PGP: update for newer HW devices Documentation: Add section about CPU vulnerabilities for Spectre Documentation: platform: Delete x86-laptop-drivers.txt docs: Note that :c:func: should no longer be used ...
2019-07-09Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds16-55/+104
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The changes in this cycle are: - RCU flavor consolidation cleanups and optmizations - Documentation updates - Miscellaneous fixes - SRCU updates - RCU-sync flavor consolidation - Torture-test updates - Linux-kernel memory-consistency-model updates, most notably the addition of plain C-language accesses" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (61 commits) tools/memory-model: Improve data-race detection tools/memory-model: Change definition of rcu-fence tools/memory-model: Expand definition of barrier tools/memory-model: Do not use "herd" to refer to "herd7" tools/memory-model: Fix comment in MP+poonceonces.litmus Documentation: atomic_t.txt: Explain ordering provided by smp_mb__{before,after}_atomic() rcu: Don't return a value from rcu_assign_pointer() rcu: Force inlining of rcu_read_lock() rcu: Fix irritating whitespace error in rcu_assign_pointer() rcu: Upgrade sync_exp_work_done() to smp_mb() rcutorture: Upper case solves the case of the vanishing NULL pointer torture: Suppress propagating trace_printk() warning rcutorture: Dump trace buffer for callback pipe drain failures torture: Add --trust-make to suppress "make clean" torture: Make --cpus override idleness calculations torture: Run kernel build in source directory torture: Add function graph-tracing cheat sheet torture: Capture qemu output rcutorture: Tweak kvm options rcutorture: Add trivial RCU implementation ...
2019-07-08Merge branch 'x86-cpu-for-linus' of ↵Linus Torvalds3-29/+311
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 CPU feature updates from Thomas Gleixner: "Updates for x86 CPU features: - Support for UMWAIT/UMONITOR, which allows to use MWAIT and MONITOR instructions in user space to save power e.g. in HPC workloads which spin wait on synchronization points. The maximum time a MWAIT can halt in userspace is controlled by the kernel and can be adjusted by the sysadmin. - Speed up the MTRR handling code on CPUs which support cache self-snooping correctly. On those CPUs the wbinvd() invocations can be omitted which speeds up the MTRR setup by a factor of 50. - Support for the new x86 vendor Zhaoxin who develops processors based on the VIA Centaur technology. - Prevent 'cat /proc/cpuinfo' from affecting isolated NOHZ_FULL CPUs by sending IPIs to retrieve the CPU frequency and use the cached values instead. - The addition and late revert of the FSGSBASE support. The revert was required as it turned out that the code still has hard to diagnose issues. Yet another engineering trainwreck... - Small fixes, cleanups, improvements and the usual new Intel CPU family/model addons" * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits) x86/fsgsbase: Revert FSGSBASE support selftests/x86/fsgsbase: Fix some test case bugs x86/entry/64: Fix and clean up paranoid_exit x86/entry/64: Don't compile ignore_sysret if 32-bit emulation is enabled selftests/x86: Test SYSCALL and SYSENTER manually with TF set x86/mtrr: Skip cache flushes on CPUs with cache self-snooping x86/cpu/intel: Clear cache self-snoop capability in CPUs with known errata Documentation/ABI: Document umwait control sysfs interfaces x86/umwait: Add sysfs interface to control umwait maximum time x86/umwait: Add sysfs interface to control umwait C0.2 state x86/umwait: Initialize umwait control values x86/cpufeatures: Enumerate user wait instructions x86/cpu: Disable frequency requests via aperfmperf IPI for nohz_full CPUs x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3 ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC x86/cpu: Create Zhaoxin processors architecture support file x86/cpu: Split Tremont based Atoms from the rest Documentation/x86/64: Add documentation for GS/FS addressing mode x86/elf: Enumerate kernel FSGSBASE capability in AT_HWCAP2 x86/cpu: Enable FSGSBASE on 64bit by default and add a chicken bit ...
2019-07-08Merge branch 'x86-entry-for-linus' of ↵Linus Torvalds1-25/+95
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 vsyscall updates from Thomas Gleixner: "Further hardening of the legacy vsyscall by providing support for execute only mode and switching the default to it. This prevents a certain class of attacks which rely on the vsyscall page being accessible at a fixed address in the canonical kernel address space" * 'x86-entry-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/x86: Add a test for process_vm_readv() on the vsyscall page x86/vsyscall: Add __ro_after_init to global variables x86/vsyscall: Change the default vsyscall mode to xonly selftests/x86/vsyscall: Verify that vsyscall=none blocks execution x86/vsyscall: Document odd SIGSEGV error code for vsyscalls x86/vsyscall: Show something useful on a read fault x86/vsyscall: Add a new vsyscall=xonly mode Documentation/admin: Remove the vsyscall=native documentation
2019-07-08Merge branch 'timers-core-for-linus' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "The timer and timekeeping departement delivers: Core: - The consolidation of the VDSO code into a generic library including the conversion of x86 and ARM64. Conversion of ARM and MIPS are en route through the relevant maintainer trees and should end up in 5.4. This gets rid of the unnecessary different copies of the same code and brings all architectures on the same level of VDSO functionality. - Make the NTP user space interface more robust by restricting the TAI offset to prevent undefined behaviour. Includes a selftest. - Validate user input in the compat settimeofday() syscall to catch invalid values which would be turned into valid values by a multiplication overflow - Consolidate the time accessors - Small fixes, improvements and cleanups all over the place Drivers: - Support for the NXP system counter, TI davinci timer - Move the Microsoft HyperV clocksource/events code into the drivers/clocksource directory so it can be shared between x86 and ARM64. - Overhaul of the Tegra driver - Delay timer support for IXP4xx - Small fixes, improvements and cleanups as usual" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits) time: Validate user input in compat_settimeofday() timer: Document TIMER_PINNED clocksource/drivers: Continue making Hyper-V clocksource ISA agnostic clocksource/drivers: Make Hyper-V clocksource ISA agnostic MAINTAINERS: Fix Andy's surname and the directory entries of VDSO hrtimer: Use a bullet for the returns bullet list arm64: vdso: Fix compilation with clang older than 8 arm64: compat: Fix __arch_get_hw_counter() implementation arm64: Fix __arch_get_hw_counter() implementation lib/vdso: Make delta calculation work correctly MAINTAINERS: Add entry for the generic VDSO library arm64: compat: No need for pre-ARMv7 barriers on an ARMv8 system arm64: vdso: Remove unnecessary asm-offsets.c definitions vdso: Remove superfluous #ifdef __KERNEL__ in vdso/datapage.h clocksource/drivers/davinci: Add support for clocksource clocksource/drivers/davinci: Add support for clockevents clocksource/drivers/tegra: Set up maximum-ticks limit properly clocksource/drivers/tegra: Cycles can't be 0 clocksource/drivers/tegra: Restore base address before cleanup clocksource/drivers/tegra: Add verbose definition for 1MHz constant ...
2019-07-03selftests/x86/fsgsbase: Fix some test case bugsAndy Lutomirski1-34/+40
This refactors do_unexpected_base() to clean up some code. It also fixes the following bugs in test_ptrace_write_gsbase(): - Incorrect printf() format string caused crashes. - Hardcoded 0x7 for the gs selector was not reliably correct. It also documents the fact that the test is expected to fail on old kernels. Fixes: a87730cc3acc ("selftests/x86/fsgsbase: Test ptracer-induced GSBASE write with FSGSBASE") Fixes: 1b6858d5a2eb ("selftests/x86/fsgsbase: Test ptracer-induced GSBASE write") Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: "BaeChang Seok" <chang.seok.bae@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: "BaeChang Seok" <chang.seok.bae@intel.com> Link: https://lkml.kernel.org/r/bab29c84f2475e2c30ddb00f1b877fcd7f4f96a8.1562125333.git.luto@kernel.org
2019-07-03Merge branch 'timers/vdso' into timers/coreThomas Gleixner51-173/+1146
so the hyper-v clocksource update can be applied.
2019-07-02KVM: nVMX: Change KVM_STATE_NESTED_EVMCS to signal vmcs12 is copied from eVMCSLiran Alon1-0/+1
Currently KVM_STATE_NESTED_EVMCS is used to signal that eVMCS capability is enabled on vCPU. As indicated by vmx->nested.enlightened_vmcs_enabled. This is quite bizarre as userspace VMM should make sure to expose same vCPU with same CPUID values in both source and destination. In case vCPU is exposed with eVMCS support on CPUID, it is also expected to enable KVM_CAP_HYPERV_ENLIGHTENED_VMCS capability. Therefore, KVM_STATE_NESTED_EVMCS is redundant. KVM_STATE_NESTED_EVMCS is currently used on restore path (vmx_set_nested_state()) only to enable eVMCS capability in KVM and to signal need_vmcs12_sync such that on next VMEntry to guest nested_sync_from_vmcs12() will be called to sync vmcs12 content into eVMCS in guest memory. However, because restore nested-state is rare enough, we could have just modified vmx_set_nested_state() to always signal need_vmcs12_sync. From all the above, it seems that we could have just removed the usage of KVM_STATE_NESTED_EVMCS. However, in order to preserve backwards migration compatibility, we cannot do that. (vmx_get_nested_state() needs to signal flag when migrating from new kernel to old kernel). Returning KVM_STATE_NESTED_EVMCS when just vCPU have eVMCS enabled have a bad side-effect of userspace VMM having to send nested-state from source to destination as part of migration stream. Even if guest have never used eVMCS as it doesn't even run a nested hypervisor workload. This requires destination userspace VMM and KVM to support setting nested-state. Which make it more difficult to migrate from new host to older host. To avoid this, change KVM_STATE_NESTED_EVMCS to signal eVMCS is not only enabled but also active. i.e. Guest have made some eVMCS active via an enlightened VMEntry. i.e. vmcs12 is copied from eVMCS and therefore should be restored into eVMCS resident in memory (by copy_vmcs12_to_enlightened()). Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by: Maran Wilson <maran.wilson@oracle.com> Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-07-02selftests/x86: Test SYSCALL and SYSENTER manually with TF setAndy Lutomirski2-7/+110
Make sure that both variants of the nasty TF-in-compat-syscall are exercised regardless of what vendor's CPU is running the tests. Also change the intentional signal after SYSCALL to use ud2, which is a lot more comprehensible. This crashes the kernel due to an FSGSBASE bug right now. This test *also* detects a bug in KVM when run on an Intel host. KVM people, feel free to use it to help debug. There's a bunch of code in this test to warn instead of going into an infinite looping when the bug gets triggered. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: "BaeChang Seok" <chang.seok.bae@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Cc: "Bae, Chang Seok" <chang.seok.bae@intel.com> Link: https://lkml.kernel.org/r/5f5de10441ab2e3005538b4c33be9b1965d1bb63.1562035429.git.luto@kernel.org
2019-06-28Merge branch 'for-mingo' of ↵Ingo Molnar16-55/+104
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull rcu/next + tools/memory-model changes from Paul E. McKenney: - RCU flavor consolidation cleanups and optmizations - Documentation updates - Miscellaneous fixes - SRCU updates - RCU-sync flavor consolidation - Torture-test updates - Linux-kernel memory-consistency-model updates, most notably the addition of plain C-language accesses Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-28selftests/x86: Add a test for process_vm_readv() on the vsyscall pageAndy Lutomirski1-0/+35
get_gate_page() is a piece of somewhat alarming code to make get_user_pages() work on the vsyscall page. Test it via process_vm_readv(). Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Florian Weimer <fweimer@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Kernel Hardening <kernel-hardening@lists.openwall.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/0fe34229a9330e8f9de9765967939cc4f1cf26b1.1561610354.git.luto@kernel.org
2019-06-28selftests/x86/vsyscall: Verify that vsyscall=none blocks executionAndy Lutomirski1-24/+52
If vsyscall=none accidentally still allowed vsyscalls, the test wouldn't fail. Fix it. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Florian Weimer <fweimer@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Kernel Hardening <kernel-hardening@lists.openwall.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/b413397c804265f8865f3e70b14b09485ea7c314.1561610354.git.luto@kernel.org
2019-06-28x86/vsyscall: Document odd SIGSEGV error code for vsyscallsAndy Lutomirski1-1/+8
Even if vsyscall=none, user page faults on the vsyscall page are reported as though the PROT bit in the error code was set. Add a comment explaining why this is probably okay and display the value in the test case. While at it, explain why the behavior is correct with respect to PKRU. Modify also the selftest to print the odd error code so that there is a way to demonstrate the odd behaviour. If anyone really cares about more accurate emulation, the behaviour could be changed. But that needs a real good justification. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Florian Weimer <fweimer@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Kernel Hardening <kernel-hardening@lists.openwall.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/75c91855fd850649ace162eec5495a1354221aaa.1561610354.git.luto@kernel.org
2019-06-24Merge tag 'powerpc-5.2-6' of ↵Linus Torvalds3-2/+92
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "One fix for a bug in our context id handling on 64-bit hash CPUs, which can lead to unrelated processes being able to read/write to each other's virtual memory. See the commit for full details. That is the fix for CVE-2019-12817. This also adds a kernel selftest for the bug" * tag 'powerpc-5.2-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: selftests/powerpc: Add test of fork with mapping above 512TB powerpc/mm/64s/hash: Reallocate context ids on fork
2019-06-22selftests/x86/fsgsbase: Test ptracer-induced GSBASE write with FSGSBASEChang S. Bae1-2/+9
This validates that GS and GSBASE are independently preserved in ptracer commands. Suggested-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ravi Shankar <ravi.v.shankar@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Link: https://lkml.kernel.org/r/1557309753-24073-16-git-send-email-chang.seok.bae@intel.com
2019-06-22selftests/x86/fsgsbase: Test RD/WRGSBASEAndy Lutomirski1-3/+99
This validates that GS and GSBASE are independently preserved across context switches. [ chang: Use FSGSBASE instructions directly instead of .byte ] Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Andi Kleen <ak@linux.intel.com> Cc: Ravi Shankar <ravi.v.shankar@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Link: https://lkml.kernel.org/r/1557309753-24073-15-git-send-email-chang.seok.bae@intel.com
2019-06-22selftests/x86/fsgsbase: Test ptracer-induced GSBASE writeChang S. Bae1-0/+70
The test validates that the selector is not changed when a ptracer writes the ptracee's GSBASE. Suggested-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ravi Shankar <ravi.v.shankar@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Link: https://lkml.kernel.org/r/1557309753-24073-3-git-send-email-chang.seok.bae@intel.com
2019-06-22kselftests: timers: freq-step: Update maximum acceptable precision and errorsMiroslav Lichvar1-3/+3
PTI has a significant impact on precision of the MONOTONIC_RAW clock, which prevents a lot of computers from running the freq-step test. Increase the maximum acceptable precision for the test to not be skipped to 500 nanoseconds. After commit 78b98e3c5a66 ("timekeeping/ntp: Determine the multiplier directly from NTP tick length") the frequency and time errors should be much smaller. Reduce the maximum acceptable values for the test to pass to 0.02 ppm and 50 nanoseconds respectively. Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Stephen Boyd <stephen.boyd@linaro.org> Link: https://lkml.kernel.org/r/20190618160612.21957-1-mlichvar@redhat.com
2019-06-21Merge tag 'spdx-5.2-rc6' of ↵Linus Torvalds39-106/+39
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull still more SPDX updates from Greg KH: "Another round of SPDX updates for 5.2-rc6 Here is what I am guessing is going to be the last "big" SPDX update for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates that were "easy" to determine by pattern matching. The ones after this are going to be a bit more difficult and the people on the spdx list will be discussing them on a case-by-case basis now. Another 5000+ files are fixed up, so our overall totals are: Files checked: 64545 Files with SPDX: 45529 Compared to the 5.1 kernel which was: Files checked: 63848 Files with SPDX: 22576 This is a huge improvement. Also, we deleted another 20000 lines of boilerplate license crud, always nice to see in a diffstat" * tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits) treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485 ...
2019-06-20Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds8-40/+232
Pull kvm fixes from Paolo Bonzini: "Fixes for ARM and x86, plus selftest patches and nicer structs for nested state save/restore" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: nVMX: reorganize initial steps of vmx_set_nested_state KVM: arm/arm64: Fix emulated ptimer irq injection tests: kvm: Check for a kernel warning kvm: tests: Sort tests in the Makefile alphabetically KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT KVM: x86: Modify struct kvm_nested_state to have explicit fields for data KVM: fix typo in documentation KVM: nVMX: use correct clean fields when copying from eVMCS KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST KVM: arm64: Implement vq_present() as a macro
2019-06-20KVM: nVMX: reorganize initial steps of vmx_set_nested_statePaolo Bonzini1-12/+20
Commit 332d079735f5 ("KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state", 2019-05-02) broke evmcs_test because the eVMCS setup must be performed even if there is no VMXON region defined, as long as the eVMCS bit is set in the assist page. While the simplest possible fix would be to add a check on kvm_state->flags & KVM_STATE_NESTED_EVMCS in the initial "if" that covers kvm_state->hdr.vmx.vmxon_pa == -1ull, that is quite ugly. Instead, this patch moves checks earlier in the function and conditionalizes them on kvm_state->hdr.vmx.vmxon_pa, so that vmx_set_nested_state always goes through vmx_leave_nested and nested_enable_evmcs. Fixes: 332d079735f5 ("KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state") Cc: Aaron Lewis <aaronlewis@google.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner10-40/+10
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499Thomas Gleixner1-3/+1
Based on 1 normalized pattern(s): this work is licensed under the terms of the gnu gpl version 2 see the copying file in the top level directory extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 35 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.797835076@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it would be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081204.982710800@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482Thomas Gleixner20-47/+20
Based on 1 normalized pattern(s): this work is licensed under the terms of the gnu gpl version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 48 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081204.624030236@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 481Thomas Gleixner2-2/+2
Based on 1 normalized pattern(s): use of this source code is governed by the gplv2 license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081204.507272547@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 472Thomas Gleixner5-5/+5
Based on 1 normalized pattern(s): released under the terms of the gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081203.398003637@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19tests: kvm: Check for a kernel warningAaron Lewis7-0/+184
When running with /sys/module/kvm_intel/parameters/unrestricted_guest=N, test that a kernel warning does not occur informing us that vcpu->mmio_needed=1. This can happen when KVM_RUN is called after a triple fault. This test was made to detect a bug that was reported by Syzkaller (https://groups.google.com/forum/#!topic/syzkaller/lHfau8E3SOE) and fixed with commit bbeac2830f4de ("KVM: X86: Fix residual mmio emulation request to userspace"). Signed-off-by: Aaron Lewis <aaronlewis@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Reviewed-by: Peter Shier <pshier@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-19kvm: tests: Sort tests in the Makefile alphabeticallyAaron Lewis1-10/+10
Signed-off-by: Aaron Lewis <aaronlewis@google.com> Reviewed-by: Peter Shier <pshier@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-19KVM: x86: Modify struct kvm_nested_state to have explicit fields for dataLiran Alon1-21/+21
Improve the KVM_{GET,SET}_NESTED_STATE structs by detailing the format of VMX nested state data in a struct. In order to avoid changing the ioctl values of KVM_{GET,SET}_NESTED_STATE, there is a need to preserve sizeof(struct kvm_nested_state). This is done by defining the data struct as "data.vmx[0]". It was the most elegant way I found to preserve struct size while still keeping struct readable and easy to maintain. It does have a misfortunate side-effect that now it has to be accessed as "data.vmx[0]" rather than just "data.vmx". Because we are already modifying these structs, I also modified the following: * Define the "format" field values as macros. * Rename vmcs_pa to vmcs12_pa for better readability. Signed-off-by: Liran Alon <liran.alon@oracle.com> [Remove SVM stubs, add KVM_STATE_NESTED_VMX_VMCS12_SIZE. - Paolo] Reviewed-by: Liran Alon <liran.alon@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds9-27/+875
Pull networking fixes from David Miller: "Lots of bug fixes here: 1) Out of bounds access in __bpf_skc_lookup, from Lorenz Bauer. 2) Fix rate reporting in cfg80211_calculate_bitrate_he(), from John Crispin. 3) Use after free in psock backlog workqueue, from John Fastabend. 4) Fix source port matching in fdb peer flow rule of mlx5, from Raed Salem. 5) Use atomic_inc_not_zero() in fl6_sock_lookup(), from Eric Dumazet. 6) Network header needs to be set for packet redirect in nfp, from John Hurley. 7) Fix udp zerocopy refcnt, from Willem de Bruijn. 8) Don't assume linear buffers in vxlan and geneve error handlers, from Stefano Brivio. 9) Fix TOS matching in mlxsw, from Jiri Pirko. 10) More SCTP cookie memory leak fixes, from Neil Horman. 11) Fix VLAN filtering in rtl8366, from Linus Walluij. 12) Various TCP SACK payload size and fragmentation memory limit fixes from Eric Dumazet. 13) Use after free in pneigh_get_next(), also from Eric Dumazet. 14) LAPB control block leak fix from Jeremy Sowden" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (145 commits) lapb: fixed leak of control-blocks. tipc: purge deferredq list for each grp member in tipc_group_delete ax25: fix inconsistent lock state in ax25_destroy_timer neigh: fix use-after-free read in pneigh_get_next tcp: fix compile error if !CONFIG_SYSCTL hv_sock: Suppress bogus "may be used uninitialized" warnings be2net: Fix number of Rx queues used for flow hashing net: handle 802.1P vlan 0 packets properly tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() tcp: add tcp_min_snd_mss sysctl tcp: tcp_fragment() should apply sane memory limits tcp: limit payload size of sacked skbs Revert "net: phylink: set the autoneg state in phylink_phy_change" bpf: fix nested bpf tracepoints with per-cpu data bpf: Fix out of bounds memory access in bpf_sk_storage vsock/virtio: set SOCK_DONE on peer shutdown net: dsa: rtl8366: Fix up VLAN filtering net: phylink: set the autoneg state in phylink_phy_change net: add high_order_alloc_disable sysctl/static key tcp: add tcp_tx_skb_cache sysctl ...
2019-06-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller2-7/+48
Alexei Starovoitov says: ==================== pull-request: bpf 2019-06-15 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) fix stack layout of JITed x64 bpf code, from Alexei. 2) fix out of bounds memory access in bpf_sk_storage, from Arthur. 3) fix lpm trie walk, from Jonathan. 4) fix nested bpf_perf_event_output, from Matt. 5) and several other fixes. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14Merge tag 'v5.2-rc4' into mauroJonathan Corbet244-1032/+1033
We need to pick up post-rc1 changes to various document files so they don't get lost in Mauro's massive RST conversion push.
2019-06-14bpf: fix div64 overflow tests to properly detect errorsNaveen N. Rao1-4/+10
If the result of the division is LLONG_MIN, current tests do not detect the error since the return value is truncated to a 32-bit value and ends up being 0. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-06-13Merge branch 'context-id-fix' into fixesMichael Ellerman3-2/+92
This merges a fix for a bug in our context id handling on 64-bit hash CPUs. The fix was written against v5.1 to ease backporting to stable releases. Here we are merging it up to a v5.2-rc2 base, which involves a bit of manual resolution. It also adds a test case for the bug. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-06-13selftests/powerpc: Add test of fork with mapping above 512TBMichael Ellerman3-2/+92
This tests that when a process with a mapping above 512TB forks we correctly separate the parent and child address spaces. This exercises the bug in the context id handling fixed in the previous commit. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-06-12selftests: tc_flower: Add TOS matching testJiri Pirko1-1/+35
Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-12selftests: mlxsw: Test nexthop offload indicationIdo Schimmel1-0/+47
Test that IPv4 and IPv6 nexthops are correctly marked with offload indication in response to neighbour events. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-11bpf: lpm_trie: check left child of last leftmost node for NULLJonathan Lemon1-3/+38
If the leftmost parent node of the tree has does not have a child on the left side, then trie_get_next_key (and bpftool map dump) will not look at the child on the right. This leads to the traversal missing elements. Lookup is not affected. Update selftest to handle this case. Reproducer: bpftool map create /sys/fs/bpf/lpm type lpm_trie key 6 \ value 1 entries 256 name test_lpm flags 1 bpftool map update pinned /sys/fs/bpf/lpm key 8 0 0 0 0 0 value 1 bpftool map update pinned /sys/fs/bpf/lpm key 16 0 0 0 0 128 value 2 bpftool map dump pinned /sys/fs/bpf/lpm Returns only 1 element. (2 expected) Fixes: b471f2f1de8b ("bpf: implement MAP_GET_NEXT_KEY command for LPM_TRIE") Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-06-08Merge tag 'spdx-5.2-rc4' of ↵Linus Torvalds29-232/+29
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull yet more SPDX updates from Greg KH: "Another round of SPDX header file fixes for 5.2-rc4 These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being added, based on the text in the files. We are slowly chipping away at the 700+ different ways people tried to write the license text. All of these were reviewed on the spdx mailing list by a number of different people. We now have over 60% of the kernel files covered with SPDX tags: $ ./scripts/spdxcheck.py -v 2>&1 | grep Files Files checked: 64533 Files with SPDX: 40392 Files with errors: 0 I think the majority of the "easy" fixups are now done, it's now the start of the longer-tail of crazy variants to wade through" * tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (159 commits) treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 448 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 443 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 442 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 435 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 433 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 431 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 430 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429 ...
2019-06-08docs: move protection-keys.rst to the core-api bookMauro Carvalho Chehab1-1/+1
This document is used by multiple architectures: $ echo $(git grep -l pkey_mprotect arch|cut -d'/' -f 2|sort|uniq) alpha arm arm64 ia64 m68k microblaze mips parisc powerpc s390 sh sparc x86 xtensa So, let's move it to the core book and adjust the links to it accordingly. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-08Merge tag 'linux-kselftest-5.2-rc4-2' of ↵Linus Torvalds1-4/+0
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fix from Shuah Khan: "This consists of a single fix for a vm test build failure regression when it is built by itself" * tag 'linux-kselftest-5.2-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: vm: Fix test build failure when built by itself
2019-06-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller5-19/+745
Daniel Borkmann says: ==================== pull-request: bpf 2019-06-07 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) Fix several bugs in riscv64 JIT code emission which forgot to clear high 32-bits for alu32 ops, from Björn and Luke with selftests covering all relevant BPF alu ops from Björn and Jiong. 2) Two fixes for UDP BPF reuseport that avoid calling the program in case of __udp6_lib_err and UDP GRO which broke reuseport_select_sock() assumption that skb->data is pointing to transport header, from Martin. 3) Two fixes for BPF sockmap: a use-after-free from sleep in psock's backlog workqueue, and a missing restore of sk_write_space when psock gets dropped, from Jakub and John. 4) Fix unconnected UDP sendmsg hook API which is insufficient as-is since it breaks standard applications like DNS if reverse NAT is not performed upon receive, from Daniel. 5) Fix an out-of-bounds read in __bpf_skc_lookup which in case of AF_INET6 fails to verify that the length of the tuple is long enough, from Lorenz. 6) Fix libbpf's libbpf__probe_raw_btf to return an fd instead of 0/1 (for {un,}successful probe) as that is expected to be propagated as an fd to load_sk_storage_btf() and thus closing the wrong descriptor otherwise, from Michal. 7) Fix bpftool's JSON output for the case when a lookup fails, from Krzesimir. 8) Minor misc fixes in docs, samples and selftests, from various others. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-1/+4
Pull networking fixes from David Miller: 1) Free AF_PACKET po->rollover properly, from Willem de Bruijn. 2) Read SFP eeprom in max 16 byte increments to avoid problems with some SFP modules, from Russell King. 3) Fix UDP socket lookup wrt. VRF, from Tim Beale. 4) Handle route invalidation properly in s390 qeth driver, from Julian Wiedmann. 5) Memory leak on unload in RDS, from Zhu Yanjun. 6) sctp_process_init leak, from Neil HOrman. 7) Fix fib_rules rule insertion semantic change that broke Android, from Hangbin Liu. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits) pktgen: do not sleep with the thread lock held. net: mvpp2: Use strscpy to handle stat strings net: rds: fix memory leak in rds_ib_flush_mr_pool ipv6: fix EFAULT on sendto with icmpv6 and hdrincl ipv6: use READ_ONCE() for inet->hdrincl as in ipv4 Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied" net: aquantia: fix wol configuration not applied sometimes ethtool: fix potential userspace buffer overflow Fix memory leak in sctp_process_init net: rds: fix memory leak when unload rds_rdma ipv6: fix the check before getting the cookie in rt6_get_cookie ipv4: not do cache for local delivery if bc_forwarding is enabled s390/qeth: handle error when updating TX queue count s390/qeth: fix VLAN attribute in bridge_hostnotify udev event s390/qeth: check dst entry before use s390/qeth: handle limited IPv4 broadcast in L3 TX path net: fix indirect calls helpers for ptype list hooks. net: ipvlan: Fix ipvlan device tso disabled while NETIF_F_IP_CSUM is set udp: only choose unbound UDP socket for multicast when not in a VRF net/tls: replace the sleeping lock around RX resync with a bit lock ...
2019-06-07bpf: expand section tests for test_section_namesDaniel Borkmann1-0/+10
Add cgroup/recvmsg{4,6} to test_section_names as well. Test run output: # ./test_section_names libbpf: failed to guess program type based on ELF section name 'InvAliD' libbpf: supported section(type) names are: [...] libbpf: failed to guess attach type based on ELF section name 'InvAliD' libbpf: attachable section(type) names are: [...] libbpf: failed to guess program type based on ELF section name 'cgroup' libbpf: supported section(type) names are: [...] libbpf: failed to guess attach type based on ELF section name 'cgroup' libbpf: attachable section(type) names are: [...] Summary: 38 PASSED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-06-07bpf: more msg_name rewrite tests to test_sock_addrDaniel Borkmann1-16/+197
Extend test_sock_addr for recvmsg test cases, bigger parts of the sendmsg code can be reused for this. Below are the strace view of the recvmsg rewrites; the sendmsg side does not have a BPF prog connected to it for the context of this test: IPv4 test case: [pid 4846] bpf(BPF_PROG_ATTACH, {target_fd=3, attach_bpf_fd=4, attach_type=0x13 /* BPF_??? */, attach_flags=BPF_F_ALLOW_OVERRIDE}, 112) = 0 [pid 4846] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 5 [pid 4846] bind(5, {sa_family=AF_INET, sin_port=htons(4444), sin_addr=inet_addr("127.0.0.1")}, 128) = 0 [pid 4846] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 6 [pid 4846] sendmsg(6, {msg_name={sa_family=AF_INET, sin_port=htons(4444), sin_addr=inet_addr("127.0.0.1")}, msg_namelen=128, msg_iov=[{iov_base="a", iov_len=1}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 1 [pid 4846] select(6, [5], NULL, NULL, {tv_sec=2, tv_usec=0}) = 1 (in [5], left {tv_sec=1, tv_usec=999995}) [pid 4846] recvmsg(5, {msg_name={sa_family=AF_INET, sin_port=htons(4040), sin_addr=inet_addr("192.168.1.254")}, msg_namelen=128->16, msg_iov=[{iov_base="a", iov_len=64}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 1 [pid 4846] close(6) = 0 [pid 4846] close(5) = 0 [pid 4846] bpf(BPF_PROG_DETACH, {target_fd=3, attach_type=0x13 /* BPF_??? */}, 112) = 0 IPv6 test case: [pid 4846] bpf(BPF_PROG_ATTACH, {target_fd=3, attach_bpf_fd=4, attach_type=0x14 /* BPF_??? */, attach_flags=BPF_F_ALLOW_OVERRIDE}, 112) = 0 [pid 4846] socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP) = 5 [pid 4846] bind(5, {sa_family=AF_INET6, sin6_port=htons(6666), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=htonl(0), sin6_scope_id=0}, 128) = 0 [pid 4846] socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP) = 6 [pid 4846] sendmsg(6, {msg_name={sa_family=AF_INET6, sin6_port=htons(6666), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=htonl(0), sin6_scope_id=0}, msg_namelen=128, msg_iov=[{iov_base="a", iov_len=1}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 1 [pid 4846] select(6, [5], NULL, NULL, {tv_sec=2, tv_usec=0}) = 1 (in [5], left {tv_sec=1, tv_usec=999996}) [pid 4846] recvmsg(5, {msg_name={sa_family=AF_INET6, sin6_port=htons(6060), inet_pton(AF_INET6, "face:b00c:1234:5678::abcd", &sin6_addr), sin6_flowinfo=htonl(0), sin6_scope_id=0}, msg_namelen=128->28, msg_iov=[{iov_base="a", iov_len=64}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 1 [pid 4846] close(6) = 0 [pid 4846] close(5) = 0 [pid 4846] bpf(BPF_PROG_DETACH, {target_fd=3, attach_type=0x14 /* BPF_??? */}, 112) = 0 test_sock_addr run w/o strace view: # ./test_sock_addr.sh [...] Test case: recvmsg4: return code ok .. [PASS] Test case: recvmsg4: return code !ok .. [PASS] Test case: recvmsg6: return code ok .. [PASS] Test case: recvmsg6: return code !ok .. [PASS] Test case: recvmsg4: rewrite IP & port (asm) .. [PASS] Test case: recvmsg6: rewrite IP & port (asm) .. [PASS] [...] Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrey Ignatov <rdna@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-06-06selftests: vm: Fix test build failure when built by itselfShuah Khan1-4/+0
vm test build fails when test is built by itself using make -C tools/testing/selftests/vm or cd tools/testing/selftests/vm; make When the test is built invoking its Makefile directly, it defines OUTPUT which conflicts with lib.mk's logic to install headers. make --no-builtin-rules INSTALL_HDR_PATH=$OUTPUT/usr \ ARCH=x86 -C ../../../.. headers_install make[1]: Entering directory '/mnt/data/lkml/linux_5.2' REMOVE shmparam.h rm: cannot remove '/usr/include/asm-generic/shmparam.h': Permission denied scripts/Makefile.headersinst:96: recipe for target '/usr/include/asm-generic/.install' failed make[3]: *** [/usr/include/asm-generic/.install] Error 1 scripts/Makefile.headersinst:32: recipe for target 'asm-generic' failed make[2]: *** [asm-generic] Error 2 Makefile:1199: recipe for target 'headers_install' failed make[1]: *** [headers_install] Error 2 make[1]: Leaving directory '/mnt/data/lkml/linux_5.2' ../lib.mk:52: recipe for target 'khdr' failed make: *** [khdr] Error 2 Fixes: 8ce72dc32578 ("selftests: fix headers_install circular dependency") Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-06-05Merge tag 'linux-kselftest-5.2-rc4' of ↵Linus Torvalds4-2/+13
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fixes from Shuah Khan: - fixes to cgroup tests (Alex Shi) - fix to userfaultfd compiler warning (Alakesh Haloi) - fix to vm install to include test script to run the test (Naresh Kamboju) * tag 'linux-kselftest-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: vm: install test_vmalloc.sh for run_vmtests userfaultfd: selftest: fix compiler warning kselftest/cgroup: fix incorrect test_core skip kselftest/cgroup: fix unexpected testing failure on test_core kselftest/cgroup: fix unexpected testing failure on test_memcontrol
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444Thomas Gleixner1-4/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.780600873@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335Thomas Gleixner2-27/+2
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 111 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>