BMC/Intel-BMC/linux.git/tools/testing/selftests/x86/Makefile, branch master

selftests: x86: override clean in lib.mk to fix warnings

2017-04-27T14:05:23+00:00

Add override with EXTRA_CLEAN for lib.mk clean to fix the following warnings from clean target run. Makefile:44: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan

Merge tag 'kvm-4.11-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2017-03-04T19:36:19+00:00

Pull more KVM updates from Radim Krčmář: "Second batch of KVM changes for the 4.11 merge window: PPC: - correct assumption about ASDR on POWER9 - fix MMIO emulation on POWER9 x86: - add a simple test for ioperm - cleanup TSS (going through KVM tree as the whole undertaking was caused by VMX's use of TSS) - fix nVMX interrupt delivery - fix some performance counters in the guest ... and two cleanup patches" * tag 'kvm-4.11-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: nVMX: Fix pending events injection x86/kvm/vmx: remove unused variable in segment_base() selftests/x86: Add a basic selftest for ioperm x86/asm: Tidy up TSS limit code kvm: convert kvm.users_count from atomic_t to refcount_t KVM: x86: never specify a sample period for virtualized in_tx_cp counters KVM: PPC: Book3S HV: Don't use ASDR for real-mode HPT faults on POWER9 KVM: PPC: Book3S HV: Fix software walk of guest process page tables

selftests/x86: Add a basic selftest for ioperm

2017-03-01T16:03:23+00:00

This doesn't fully exercise the interaction between KVM and ioperm(), but it does test basic functionality. Signed-off-by: Andy Lutomirski Signed-off-by: Radim Krčmář

Merge tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2017-02-25T23:32:53+00:00

Pull Kselftest update from Shuah Khan: "This update consists of: - fixes to several existing tests from Stafford Horne - cpufreq tests from Viresh Kumar - Selftest build and install fixes from Bamvor Jian Zhang and Michael Ellerman - Fixes to protection-keys tests from Dave Hansen - Warning fixes from Shuah Khan" * tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (28 commits) selftests/powerpc: Fix remaining fallout from recent changes selftests/powerpc: Fix the clean rule since recent changes selftests: Fix the .S and .S -> .o rules selftests: Fix the .c linking rule selftests: Fix selftests build to just build, not run tests selftests, x86, protection_keys: fix wrong offset in siginfo selftests, x86, protection_keys: fix uninitialized variable warning selftest: cpufreq: Update MAINTAINERS file selftest: cpufreq: Add special tests selftest: cpufreq: Add support to test cpufreq modules selftest: cpufreq: Add suspend/resume/hibernate support selftest: cpufreq: Add support for cpufreq tests selftests: Add intel_pstate to TARGETS selftests/intel_pstate: Update makefile to match new style selftests/intel_pstate: Fix warning on loop index overflow cpupower: Restore format of frequency-info limit selftests/futex: Add headers to makefile dependencies selftests/futex: Add stdio used for logging selftests: x86 protection_keys remove dead code selftests: x86 protection_keys fix unused variable compile warnings ...

Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-02-20T23:57:19+00:00

Pull x86 mm updates from Ingo Molnar: "A laundry list of changes: KASAN improvements/fixes for ptdump, a self-test fix, PAT cleanup and wbinvd() avoidance, removal of stale code and documentation updates" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/ptdump: Add address marker for KASAN shadow region x86/mm/ptdump: Optimize check for W+X mappings for CONFIG_KASAN=y x86/mm/pat: Use rb_entry() x86/mpx: Re-add MPX to selftests Makefile x86/mm: Remove CONFIG_DEBUG_NX_TEST x86/mm/cpa: Avoid wbinvd() for PREEMPT x86/mm: Improve documentation for low-level device I/O functions

x86/mpx: Re-add MPX to selftests Makefile

2017-02-02T07:09:18+00:00

Ingo pointed out that the MPX tests were no longer in the selftests Makefile. It appears that I shot myself in the foot on this one and accidentally removed them when I added the pkeys tests, probably from bungling a merge conflict. Reported-by: Ingo Molnar Signed-off-by: Dave Hansen Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Fixes: 5f23f6d082a9 ("x86/pkeys: Add self-tests") Link: http://lkml.kernel.org/r/20170201225629.C3070852@viggo.jf.intel.com Signed-off-by: Ingo Molnar

selftests: enable O and KBUILD_OUTPUT

2017-01-05T20:42:22+00:00

Enable O and KBUILD_OUTPUT for kselftest. User could compile kselftest to another directory by passing O or KBUILD_OUTPUT. And O is high priority than KBUILD_OUTPUT. Signed-off-by: Bamvor Jian Zhang Signed-off-by: Shuah Khan

selftests/x86: Add a selftest for SYSRET to noncanonical addresses

2017-01-05T08:20:02+00:00

SYSRET to a noncanonical address will blow up on Intel CPUs. Linux needs to prevent this from happening in two major cases, and the criteria will become more complicated when support for larger virtual address spaces is added. A fast-path SYSCALL will fall through to the following instruction using SYSRET without any particular checking. To prevent fall-through to a noncanonical address, Linux prevents the highest canonical page from being mapped. This test case checks a variety of possible maximum addresses to make sure that either we can't map code there or that SYSCALL fall-through works. A slow-path system call can return anywhere. Linux needs to make sure that, if the return address is non-canonical, it won't use SYSRET. This test cases causes sigreturn() to return to a variety of addresses (with RCX == RIP) and makes sure that nothing explodes. Some of this code comes from Kirill Shutemov. Kirill reported the following output with 5-level paging enabled: [RUN] sigreturn to 0x800000000000 [OK] Got SIGSEGV at RIP=0x800000000000 [RUN] sigreturn to 0x1000000000000 [OK] Got SIGSEGV at RIP=0x1000000000000 [RUN] sigreturn to 0x2000000000000 [OK] Got SIGSEGV at RIP=0x2000000000000 [RUN] sigreturn to 0x4000000000000 [OK] Got SIGSEGV at RIP=0x4000000000000 [RUN] sigreturn to 0x8000000000000 [OK] Got SIGSEGV at RIP=0x8000000000000 [RUN] sigreturn to 0x10000000000000 [OK] Got SIGSEGV at RIP=0x10000000000000 [RUN] sigreturn to 0x20000000000000 [OK] Got SIGSEGV at RIP=0x20000000000000 [RUN] sigreturn to 0x40000000000000 [OK] Got SIGSEGV at RIP=0x40000000000000 [RUN] sigreturn to 0x80000000000000 [OK] Got SIGSEGV at RIP=0x80000000000000 [RUN] sigreturn to 0x100000000000000 [OK] Got SIGSEGV at RIP=0x100000000000000 [RUN] sigreturn to 0x200000000000000 [OK] Got SIGSEGV at RIP=0x200000000000000 [RUN] sigreturn to 0x400000000000000 [OK] Got SIGSEGV at RIP=0x400000000000000 [RUN] sigreturn to 0x800000000000000 [OK] Got SIGSEGV at RIP=0x800000000000000 [RUN] sigreturn to 0x1000000000000000 [OK] Got SIGSEGV at RIP=0x1000000000000000 [RUN] sigreturn to 0x2000000000000000 [OK] Got SIGSEGV at RIP=0x2000000000000000 [RUN] sigreturn to 0x4000000000000000 [OK] Got SIGSEGV at RIP=0x4000000000000000 [RUN] sigreturn to 0x8000000000000000 [OK] Got SIGSEGV at RIP=0x8000000000000000 [RUN] Trying a SYSCALL that falls through to 0x7fffffffe000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x7ffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x800000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0xfffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x1000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x1fffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x2000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x3fffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x4000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x7fffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x8000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0xffffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x10000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x1ffffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x20000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x3ffffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x40000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x7ffffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x80000000000000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0xfffffffffff000 [OK] We survived [RUN] Trying a SYSCALL that falls through to 0x100000000000000 [OK] mremap to 0xfffffffffff000 failed [RUN] Trying a SYSCALL that falls through to 0x1fffffffffff000 [OK] mremap to 0x1ffffffffffe000 failed [RUN] Trying a SYSCALL that falls through to 0x200000000000000 [OK] mremap to 0x1fffffffffff000 failed [RUN] Trying a SYSCALL that falls through to 0x3fffffffffff000 [OK] mremap to 0x3ffffffffffe000 failed [RUN] Trying a SYSCALL that falls through to 0x400000000000000 [OK] mremap to 0x3fffffffffff000 failed [RUN] Trying a SYSCALL that falls through to 0x7fffffffffff000 [OK] mremap to 0x7ffffffffffe000 failed [RUN] Trying a SYSCALL that falls through to 0x800000000000000 [OK] mremap to 0x7fffffffffff000 failed [RUN] Trying a SYSCALL that falls through to 0xffffffffffff000 [OK] mremap to 0xfffffffffffe000 failed [RUN] Trying a SYSCALL that falls through to 0x1000000000000000 [OK] mremap to 0xffffffffffff000 failed [RUN] Trying a SYSCALL that falls through to 0x1ffffffffffff000 [OK] mremap to 0x1fffffffffffe000 failed [RUN] Trying a SYSCALL that falls through to 0x2000000000000000 [OK] mremap to 0x1ffffffffffff000 failed [RUN] Trying a SYSCALL that falls through to 0x3ffffffffffff000 [OK] mremap to 0x3fffffffffffe000 failed [RUN] Trying a SYSCALL that falls through to 0x4000000000000000 [OK] mremap to 0x3ffffffffffff000 failed [RUN] Trying a SYSCALL that falls through to 0x7ffffffffffff000 [OK] mremap to 0x7fffffffffffe000 failed [RUN] Trying a SYSCALL that falls through to 0x8000000000000000 [OK] mremap to 0x7ffffffffffff000 failed Signed-off-by: Andy Lutomirski Acked-by: Kirill A. Shutemov Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Shuah Khan Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/e70bd9a3f90657ba47b755100a20475d038fa26b.1482808435.git.luto@kernel.org Signed-off-by: Ingo Molnar

selftests/x86: Add test_vdso to test getcpu()

2016-11-17T07:31:22+00:00

I'll eventually add tests for more vDSO functions here. Signed-off-by: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Megha Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/945cd29901a62a3cc6ea7d6ee5e389ab1ec1ac0c.1479320367.git.luto@kernel.org Signed-off-by: Ingo Molnar

x86/pkeys: Add self-tests

2016-09-09T11:02:28+00:00

This code should be a good demonstration of how to use the new system calls as well as how to use protection keys in general. This code shows how to: 1. Manipulate the Protection Keys Rights User (PKRU) register 2. Set a protection key on memory 3. Fetch and/or modify PKRU from the signal XSAVE state 4. Read the kernel-provided protection key in the siginfo 5. Set up an execute-only mapping There are currently 13 tests: test_read_of_write_disabled_region test_read_of_access_disabled_region test_write_of_write_disabled_region test_write_of_access_disabled_region test_kernel_write_of_access_disabled_region test_kernel_write_of_write_disabled_region test_kernel_gup_of_access_disabled_region test_kernel_gup_write_to_write_disabled_region test_executing_on_unreadable_memory test_ptrace_of_child test_pkey_syscalls_on_non_allocated_pkey test_pkey_syscalls_bad_args test_pkey_alloc_exhaust Each of the tests is run with plain memory (via mmap(MAP_ANON)), transparent huge pages, and hugetlb. Signed-off-by: Dave Hansen Cc: linux-arch@vger.kernel.org Cc: Dave Hansen Cc: mgorman@techsingularity.net Cc: arnd@arndb.de Cc: linux-api@vger.kernel.org Cc: shuahkh@osg.samsung.com Cc: linux-mm@kvack.org Cc: luto@kernel.org Cc: akpm@linux-foundation.org Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/20160729163024.FC5A0C2D@viggo.jf.intel.com Signed-off-by: Thomas Gleixner