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* EDAC, ghes: Remove unused argument to ghes_edac_report_mem_error()Alexandru Gagniuc2018-05-121-1/+1
| | | | | | | | | | | | The use of the @ghes argument was removed in a previous commit, but function signature was not updated to reflect this. Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Acked-by: "Rafael J. Wysocki" <rafael@kernel.org> Cc: linux-acpi@vger.kernel.org Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/20180430213358.8319-1-mr.nuke.me@gmail.com Signed-off-by: Borislav Petkov <bp@suse.de>
* ghes, EDAC: Fix ghes_edac registrationBorislav Petkov2018-05-021-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Tony reported seeing "Internal error: Can't find EDAC structure" when injecting correctable errors due to the fact that ghes_edac would still load even if the whitelist won't hit. Drop the pr_err() in ghes_edac_report_mem_error() for now due to the hacky way how ghes_edac depends on ghes.c. While at it, make ghes_edac_register() return an error if it doesn't hit in the whitelist as it is the only sensible thing to do in that situation. Furthermore, move the call to it to happen last in ghes_probe() so that GHES initializing properly does not depend on ghes_edac init at all as latter is only reporting errors and not required for GHES's proper functioning. Reviewed-by: Toshi Kani <toshi.kani@hpe.com> Tested-by: Sughosh Ganu <sughosh.ganu@arm.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Tony Luck <tony.luck@intel.com> Link: https://lkml.kernel.org/r/20180420182015.zao3olss4tvvlxki@agluck-desk
* Merge branch 'siginfo-linus' of ↵Linus Torvalds2018-01-301-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull siginfo cleanups from Eric Biederman: "Long ago when 2.4 was just a testing release copy_siginfo_to_user was made to copy individual fields to userspace, possibly for efficiency and to ensure initialized values were not copied to userspace. Unfortunately the design was complex, it's assumptions unstated, and humans are fallible and so while it worked much of the time that design failed to ensure unitialized memory is not copied to userspace. This set of changes is part of a new design to clean up siginfo and simplify things, and hopefully make the siginfo handling robust enough that a simple inspection of the code can be made to ensure we don't copy any unitializied fields to userspace. The design is to unify struct siginfo and struct compat_siginfo into a single definition that is shared between all architectures so that anyone adding to the set of information shared with struct siginfo can see the whole picture. Hopefully ensuring all future si_code assignments are arch independent. The design is to unify copy_siginfo_to_user32 and copy_siginfo_from_user32 so that those function are complete and cope with all of the different cases documented in signinfo_layout. I don't think there was a single implementation of either of those functions that was complete and correct before my changes unified them. The design is to introduce a series of helpers including force_siginfo_fault that take the values that are needed in struct siginfo and build the siginfo structure for their callers. Ensuring struct siginfo is built correctly. The remaining work for 4.17 (unless someone thinks it is post -rc1 material) is to push usage of those helpers down into the architectures so that architecture specific code will not need to deal with the fiddly work of intializing struct siginfo, and then when struct siginfo is guaranteed to be fully initialized change copy siginfo_to_user into a simple wrapper around copy_to_user. Further there is work in progress on the issues that have been documented requires arch specific knowledge to sort out. The changes below fix or at least document all of the issues that have been found with siginfo generation. Then proceed to unify struct siginfo the 32 bit helpers that copy siginfo to and from userspace, and generally clean up anything that is not arch specific with regards to siginfo generation. It is a lot but with the unification you can of siginfo you can already see the code reduction in the kernel" * 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (45 commits) signal/memory-failure: Use force_sig_mceerr and send_sig_mceerr mm/memory_failure: Remove unused trapno from memory_failure signal/ptrace: Add force_sig_ptrace_errno_trap and use it where needed signal/powerpc: Remove unnecessary signal_code parameter of do_send_trap signal: Helpers for faults with specialized siginfo layouts signal: Add send_sig_fault and force_sig_fault signal: Replace memset(info,...) with clear_siginfo for clarity signal: Don't use structure initializers for struct siginfo signal/arm64: Better isolate the COMPAT_TASK portion of ptrace_hbptriggered ptrace: Use copy_siginfo in setsiginfo and getsiginfo signal: Unify and correct copy_siginfo_to_user32 signal: Remove the code to clear siginfo before calling copy_siginfo_from_user32 signal: Unify and correct copy_siginfo_from_user32 signal/blackfin: Remove pointless UID16_SIGINFO_COMPAT_NEEDED signal/blackfin: Move the blackfin specific si_codes to asm-generic/siginfo.h signal/tile: Move the tile specific si_codes to asm-generic/siginfo.h signal/frv: Move the frv specific si_codes to asm-generic/siginfo.h signal/ia64: Move the ia64 specific si_codes to asm-generic/siginfo.h signal/powerpc: Remove redefinition of NSIGTRAP on powerpc signal: Move addr_lsb into the _sigfault union for clarity ...
| * mm/memory_failure: Remove unused trapno from memory_failureEric W. Biederman2018-01-231-1/+1
| | | | | | | | | | | | | | | | | | Today 4 architectures set ARCH_SUPPORTS_MEMORY_FAILURE (arm64, parisc, powerpc, and x86), while 4 other architectures set __ARCH_SI_TRAPNO (alpha, metag, sparc, and tile). These two sets of architectures do not interesect so remove the trapno paramater to remove confusion. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
* | Merge back APEI material for v4.16.Rafael J. Wysocki2017-12-211-33/+46
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| * ACPI / APEI: remove redundant variables len and node_lenColin Ian King2017-12-051-3/+0
| | | | | | | | | | | | | | | | | | Variables len and node_len are redundant and can be removed. Cleans up clang warning: node_len = GHES_ESTATUS_NODE_LEN(len); Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * ACPI: APEI: call into AER handling regardless of severityTyler Baicar2017-12-051-5/+17
| | | | | | | | | | | | | | | | | | | | | | | | Currently the GHES code only calls into the AER driver for recoverable type errors. This is incorrect because errors of other severities do not get logged by the AER driver and do not get exposed to user space via the AER trace event. So, call into the AER driver for PCIe errors regardless of the severity Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * ACPI: APEI: handle PCIe AER errors in separate functionTyler Baicar2017-12-051-30/+34
| | | | | | | | | | | | | | | | Move PCIe AER error handling code into a separate function. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | ACPI: APEI / ERST: Fix missing error handling in erst_reader()Takashi Iwai2017-12-181-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit f6f828513290 ("pstore: pass allocated memory region back to caller") changed the check of the return value from erst_read() in erst_reader() in the following way: if (len == -ENOENT) goto skip; - else if (len < 0) { - rc = -1; + else if (len < sizeof(*rcd)) { + rc = -EIO; goto out; This introduced another bug: since the comparison with sizeof() is cast to unsigned, a negative len value doesn't hit any longer. As a result, when an error is returned from erst_read(), the code falls through, and it may eventually lead to some weird thing like memory corruption. This patch adds the negative error value check more explicitly for addressing the issue. Fixes: f6f828513290 (pstore: pass allocated memory region back to caller) Cc: All applicable <stable@vger.kernel.org> Tested-by: Jerry Tang <jtang@suse.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by: Kees Cook <keescook@chromium.org> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'acpi-4.15-rc1' of ↵Linus Torvalds2017-11-132-96/+23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These update ACPICA to upstream revision 20170831, fix APEI to use the fixmap instead of ioremap_page_range(), add an operation region driver for TI PMIC TPS68470, add support for PCC subspace IDs to the ACPI CPPC driver, fix a few assorted issues and clean up some code. Specifics: - Update the ACPICA code to upstream revision 20170831 including * PDTT table header support (Bob Moore). * Cleanup and extension of internal string-to-integer conversion functions (Bob Moore). * Support for 64-bit hardware accesses (Lv Zheng). * ACPI PM Timer code adjustment to deal with 64-bit return values of acpi_hw_read() (Bob Moore). * Support for deferred table verification in acpiexec (Lv Zheng). - Fix APEI to use the fixmap instead of ioremap_page_range() which cannot work correctly the way the code in there attempted to use it and drop some code that's not necessary any more after that change (James Morse). - Clean up the APEI support code and make it use 64-bit timestamps (Arnd Bergmann, Dongjiu Geng, Jan Beulich). - Add operation region driver for TI PMIC TPS68470 (Rajmohan Mani). - Add support for PCC subspace IDs to the ACPI CPPC driver (George Cherian). - Fix an ACPI EC driver regression related to the handling of EC events during the "noirq" phases of system suspend/resume (Lv Zheng). - Delay the initialization of the lid state in the ACPI button driver to fix issues appearing on some systems (Hans de Goede). - Extend the KIOX000A "device always present" quirk to cover all affected BIOS versions (Hans de Goede). - Clean up some code in the ACPI core and drivers (Colin Ian King, Gustavo Silva)" * tag 'acpi-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits) ACPI: Mark expected switch fall-throughs ACPI / LPSS: Remove redundant initialization of clk ACPI / CPPC: Make CPPC ACPI driver aware of PCC subspace IDs mailbox: PCC: Move the MAX_PCC_SUBSPACES definition to header file ACPI / sysfs: Make function param_set_trace_method_name() static ACPI / button: Delay acpi_lid_initialize_state() until first user space open ACPI / EC: Fix regression related to triggering source of EC event handling APEI / ERST: use 64-bit timestamps ACPI / APEI: Remove arch_apei_flush_tlb_one() arm64: mm: Remove arch_apei_flush_tlb_one() ACPI / APEI: Remove ghes_ioremap_area ACPI / APEI: Replace ioremap_page_range() with fixmap ACPI / APEI: remove the unused dead-code for SEA/NMI notification type ACPI / x86: Extend KIOX000A quirk to cover all affected BIOS versions ACPI / APEI: adjust a local variable type in ghes_ioremap_pfn_irq() ACPICA: Update version to 20170831 ACPICA: Update acpi_get_timer for 64-bit interface to acpi_hw_read ACPICA: String conversions: Update to add new behaviors ACPICA: String conversions: Cleanup/format comments. No functional changes ACPICA: Restructure/cleanup all string-to-integer conversion functions ...
| *-. Merge branches 'acpi-pmic', 'acpi-apei' and 'acpi-x86'Rafael J. Wysocki2017-11-132-96/+23
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * acpi-pmic: ACPI / PMIC: Add TI PMIC TPS68470 operation region driver * acpi-apei: APEI / ERST: use 64-bit timestamps ACPI / APEI: Remove arch_apei_flush_tlb_one() arm64: mm: Remove arch_apei_flush_tlb_one() ACPI / APEI: Remove ghes_ioremap_area ACPI / APEI: Replace ioremap_page_range() with fixmap ACPI / APEI: remove the unused dead-code for SEA/NMI notification type ACPI / APEI: adjust a local variable type in ghes_ioremap_pfn_irq() * acpi-x86: ACPI / x86: Extend KIOX000A quirk to cover all affected BIOS versions
| | | * APEI / ERST: use 64-bit timestampsArnd Bergmann2017-11-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 32-bit timestamps are deprecated in the kernel, so we should not use get_seconds(). In this case, the 'struct cper_record_header' structure already contains a 64-bit field, so the only required change is to use the safe ktime_get_real_seconds() interface as a replacement. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | | * ACPI / APEI: Remove ghes_ioremap_areaJames Morse2017-11-071-37/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that nothing is using the ghes_ioremap_area pages, rip them out. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: All applicable <stable@vger.kernel.org>
| | | * ACPI / APEI: Replace ioremap_page_range() with fixmapJames Morse2017-11-071-30/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace ghes_io{re,un}map_pfn_{nmi,irq}()s use of ioremap_page_range() with __set_fixmap() as ioremap_page_range() may sleep to allocate a new level of page-table, even if its passed an existing final-address to use in the mapping. The GHES driver can only be enabled for architectures that select HAVE_ACPI_APEI: Add fixmap entries to both x86 and arm64. clear_fixmap() does the TLB invalidation in __set_fixmap() for arm64 and __set_pte_vaddr() for x86. In each case its the same as the respective arch_apei_flush_tlb_one(). Reported-by: Fengguang Wu <fengguang.wu@intel.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Tested-by: Toshi Kani <toshi.kani@hpe.com> [ For the arm64 bits: ] Acked-by: Will Deacon <will.deacon@arm.com> [ For the x86 bits: ] Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: All applicable <stable@vger.kernel.org>
| | | * ACPI / APEI: remove the unused dead-code for SEA/NMI notification typeDongjiu Geng2017-10-231-28/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the SEA notification, the two functions ghes_sea_add() and ghes_sea_remove() are only called when CONFIG_ACPI_APEI_SEA is defined. If not, it will return errors in the ghes_probe() and not continue. If the probe is failed, the ghes_sea_remove() also has no chance to be called. Hence, remove the unnecessary handling when CONFIG_ACPI_APEI_SEA is not defined. For the NMI notification, it has the same issue as SEA notification, so also remove the unused dead-code for it. Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | | * ACPI / APEI: adjust a local variable type in ghes_ioremap_pfn_irq()Jan Beulich2017-10-111-1/+2
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | Match up with what 7edda0886b ("acpi: apei: handle SEA notification type for ARMv8") did for ghes_ioremap_pfn_nmi(). Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2017-11-131-4/+3
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Thomas Gleixner: "Yet another big pile of changes: - More year 2038 work from Arnd slowly reaching the point where we need to think about the syscalls themself. - A new timer function which allows to conditionally (re)arm a timer only when it's either not running or the new expiry time is sooner than the armed expiry time. This allows to use a single timer for multiple timeout requirements w/o caring about the first expiry time at the call site. - A new NMI safe accessor to clock real time for the printk timestamp work. Can be used by tracing, perf as well if required. - A large number of timer setup conversions from Kees which got collected here because either maintainers requested so or they simply got ignored. As Kees pointed out already there are a few trivial merge conflicts and some redundant commits which was unavoidable due to the size of this conversion effort. - Avoid a redundant iteration in the timer wheel softirq processing. - Provide a mechanism to treat RTC implementations depending on their hardware properties, i.e. don't inflict the write at the 0.5 seconds boundary which originates from the PC CMOS RTC to all RTCs. No functional change as drivers need to be updated separately. - The usual small updates to core code clocksource drivers. Nothing really exciting" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits) timers: Add a function to start/reduce a timer pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday() timer: Prepare to change all DEFINE_TIMER() callbacks netfilter: ipvs: Convert timers to use timer_setup() scsi: qla2xxx: Convert timers to use timer_setup() block/aoe: discover_timer: Convert timers to use timer_setup() ide: Convert timers to use timer_setup() drbd: Convert timers to use timer_setup() mailbox: Convert timers to use timer_setup() crypto: Convert timers to use timer_setup() drivers/pcmcia: omap1: Fix error in automated timer conversion ARM: footbridge: Fix typo in timer conversion drivers/sgi-xp: Convert timers to use timer_setup() drivers/pcmcia: Convert timers to use timer_setup() drivers/memstick: Convert timers to use timer_setup() drivers/macintosh: Convert timers to use timer_setup() hwrng/xgene-rng: Convert timers to use timer_setup() auxdisplay: Convert timers to use timer_setup() sparc/led: Convert timers to use timer_setup() mips: ip22/32: Convert timers to use timer_setup() ...
| * | ACPI / APEI: Convert timers to use timer_setup()Kees Cook2017-11-021-4/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Len Brown <lenb@kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Tyler Baicar <tbaicar@codeaurora.org> Cc: Will Deacon <will.deacon@arm.com> Cc: James Morse <james.morse@arm.com> Cc: "Jonathan (Zhixiong) Zhang" <zjzhang@codeaurora.org> Cc: Shiju Jose <shiju.jose@huawei.com> Cc: linux-acpi@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Tyler Baicar <tbaicar@codeaurora.org>
* / License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-023-0/+3
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ACPI / APEI: clear error status before acknowledging the errorTyler Baicar2017-09-271-7/+9
| | | | | | | | | | | | | | | Currently we acknowledge errors before clearing the error status. This could cause a new error to be populated by firmware in-between the error acknowledgment and the error status clearing which would cause the second error's status to be cleared without being handled. So, clear the error status before acknowledging the errors. Also, make sure to acknowledge the error if the error status read fails. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI / APEI: Suppress message if HEST not presentPunit Agrawal2017-08-302-7/+13
| | | | | | | | | | | | | | | | | According to the ACPI specification, firmware is not required to provide the Hardware Error Source Table (HEST). When HEST is not present, the following superfluous message is printed to the kernel boot log - [ 3.460067] GHES: HEST is not enabled! Extend hest_disable variable to track whether the firmware provides this table and if it is not present skip any log output. The existing behaviour is preserved in all other cases. Suggested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI, APEI, EINJ: Subtract any matching Register Region from Trigger resourcesYazen Ghannam2017-08-291-1/+1
| | | | | | | | | | | | | | | | ACPI defines a number of instructions to use for triggering errors. However we are currently removing the address resources from the trigger resources for only the WRITE_REGISTER_VALUE instruction. This leads to a resource conflict for any other valid instruction. Check that the instruction is less than or equal to the WRITE_REGISTER_VALUE instruction. This allows all valid memory access instructions and protects against invalid instructions. Fixes: b4e008dc53a3 (ACPI, APEI, EINJ, Refine the fix of resource conflict) Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: APEI: fix the wrong iteration of generic error status blockgengdongjiu2017-08-241-5/+0
| | | | | | | | | | | | | | | | | | | | | The revision 0x300 generic error data entry is different from the old version, but currently iterating through the GHES estatus blocks does not take into account this difference. This will lead to failure to get the right data entry if GHES has revision 0x300 error data entry. Update the GHES estatus iteration macro to properly increment using acpi_hest_get_next(), and correct the iteration termination condition because the status block data length only includes error data length. Convert the CPER estatus checking and printing iteration logic to use same macro. Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI: APEI: Enable APEI multiple GHES source to share a single external IRQLoc Ho2017-07-311-1/+2
| | | | | | | | | | | | | | X-Gene platforms describe multiple GHES error sources with the same hardware error notification type (external interrupt) and interrupt number. Change the GHES interrupt request to support sharing the same IRQ. This change includs contributions from Tuan Phan <tphan@apm.com>. Signed-off-by: Loc Ho <lho@apm.com> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge tag 'arm64-upstream' of ↵Linus Torvalds2017-07-053-32/+196
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: - RAS reporting via GHES/APEI (ACPI) - Indirect ftrace trampolines for modules - Improvements to kernel fault reporting - Page poisoning - Sigframe cleanups and preparation for SVE context - Core dump fixes - Sparse fixes (mainly relating to endianness) - xgene SoC PMU v3 driver - Misc cleanups and non-critical fixes * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (75 commits) arm64: fix endianness annotation for 'struct jit_ctx' and friends arm64: cpuinfo: constify attribute_group structures. arm64: ptrace: Fix incorrect get_user() use in compat_vfp_set() arm64: ptrace: Remove redundant overrun check from compat_vfp_set() arm64: ptrace: Avoid setting compat FP[SC]R to garbage if get_user fails arm64: fix endianness annotation for __apply_alternatives()/get_alt_insn() arm64: fix endianness annotation in get_kaslr_seed() arm64: add missing conversion to __wsum in ip_fast_csum() arm64: fix endianness annotation in acpi_parking_protocol.c arm64: use readq() instead of readl() to read 64bit entry_point arm64: fix endianness annotation for reloc_insn_movw() & reloc_insn_imm() arm64: fix endianness annotation for aarch64_insn_write() arm64: fix endianness annotation in aarch64_insn_read() arm64: fix endianness annotation in call_undef_hook() arm64: fix endianness annotation for debug-monitors.c ras: mark stub functions as 'inline' arm64: pass endianness info to sparse arm64: ftrace: fix !CONFIG_ARM64_MODULE_PLTS kernels arm64: signal: Allow expansion of the signal frame acpi: apei: check for pending errors when probing GHES entries ...
| * acpi: apei: check for pending errors when probing GHES entriesTyler Baicar2017-06-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | Check for pending errors when probing GHES entries. It is possible that a fatal error is already pending at this point, so we should handle it as soon as the driver is probed. This also avoids a potential issue if there was an interrupt that was already cleared for an error since the GHES driver wasn't present. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * arm/arm64: KVM: add guest SEA supportTyler Baicar2017-06-221-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently external aborts are unsupported by the guest abort handling. Add handling for SEAs so that the host kernel reports SEAs which occur in the guest kernel. When an SEA occurs in the guest kernel, the guest exits and is routed to kvm_handle_guest_abort(). Prior to this patch, a print message of an unsupported FSC would be printed and nothing else would happen. With this patch, the code gets routed to the APEI handling of SEAs in the host kernel to report the SEA information. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Christoffer Dall <cdall@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * trace, ras: add ARM processor error trace eventTyler Baicar2017-06-221-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently there are trace events for the various RAS errors with the exception of ARM processor type errors. Add a new trace event for such errors so that the user will know when they occur. These trace events are consistent with the ARM processor error section type defined in UEFI 2.6 spec section N.2.4.4. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * ras: acpi / apei: generate trace event for unrecognized CPER sectionTyler Baicar2017-06-221-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The UEFI spec includes non-standard section type support in the Common Platform Error Record. This is defined in section N.2.3 of UEFI version 2.5. Currently if the CPER section's type (UUID) does not match any section type that the kernel knows how to parse, a trace event is not generated. Generate a trace event which contains the raw error data for non-standard section type error records. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Tested-by: Shiju Jose <shiju.jose@huawei.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * acpi: apei: panic OS with fatal error status blockJonathan (Zhixiong) Zhang2017-06-221-15/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even if an error status block's severity is fatal, the kernel does not honor the severity level and panic. With the firmware first model, the platform could inform the OS about a fatal hardware error through the non-NMI GHES notification type. The OS should panic when a hardware error record is received with this severity. Call panic() after CPER data in error status block is printed if severity is fatal, before each error section is handled. Signed-off-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * acpi: apei: handle SEA notification type for ARMv8Tyler Baicar2017-06-222-6/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARM APEI extension proposal added SEA (Synchronous External Abort) notification type for ARMv8. Add a new GHES error source handling function for SEA. If an error source's notification type is SEA, then this function can be registered into the SEA exception handler. That way GHES will parse and report SEA exceptions when they occur. An SEA can interrupt code that had interrupts masked and is treated as an NMI. To aid this the page of address space for mapping APEI buffers while in_nmi() is always reserved, and ghes_ioremap_pfn_nmi() is changed to use the helper methods to find the prot_t to map with in the same way as ghes_ioremap_pfn_irq(). Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Reviewed-by: James Morse <james.morse@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * ras: acpi/apei: cper: add support for generic data v3 structureTyler Baicar2017-06-221-6/+5
| | | | | | | | | | | | | | | | | | | | The ACPI 6.1 spec adds a new revision of the generic error data entry structure. Add support to handle the new structure as well as properly verify and iterate through the generic data entries. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
| * acpi: apei: read ack upon ghes record consumptionTyler Baicar2017-06-222-5/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A RAS (Reliability, Availability, Serviceability) controller may be a separate processor running in parallel with OS execution, and may generate error records for consumption by the OS. If the RAS controller produces multiple error records, then they may be overwritten before the OS has consumed them. The Generic Hardware Error Source (GHES) v2 structure introduces the capability for the OS to acknowledge the consumption of the error record generated by the RAS controller. A RAS controller supporting GHESv2 shall wait for the acknowledgment before writing a new error record, thus eliminating the race condition. Add support for parsing of GHESv2 sub-tables as well. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
* | Merge branch 'ras-core-for-linus' of ↵Linus Torvalds2017-07-031-14/+25
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS updates from Thomas Gleixner: "The RAS updates for the 4.13 merge window: - Cleanup of the MCE injection facility (Borsilav Petkov) - Rework of the AMD/SMCA handling (Yazen Ghannam) - Enhancements for ACPI/APEI to handle new notitication types (Shiju Jose) - atomic_t to refcount_t conversion (Elena Reshetova) - A few fixes and enhancements all over the place" * 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: RAS/CEC: Check the correct variable in the debugfs error handling x86/mce: Always save severity in machine_check_poll() x86/MCE, xen/mcelog: Make /dev/mcelog registration messages more precise x86/mce: Update bootlog description to reflect behavior on AMD x86/mce: Don't disable MCA banks when offlining a CPU on AMD x86/mce/mce-inject: Preset the MCE injection struct x86/mce: Clean up include files x86/mce: Get rid of register_mce_write_callback() x86/mce: Merge mce_amd_inj into mce-inject x86/mce/AMD: Use saved threshold block info in interrupt handler x86/mce/AMD: Use msr_stat when clearing MCA_STATUS x86/mce/AMD: Carve out SMCA bank configuration x86/mce/AMD: Redo error logging from APIC LVT interrupt handlers x86/mce: Convert threshold_bank.cpus from atomic_t to refcount_t RAS: Make local function parse_ras_param() static ACPI/APEI: Handle GSIV and GPIO notification types
| * ACPI/APEI: Handle GSIV and GPIO notification typesShiju Jose2017-05-211-14/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | System Controller Interrupts are received by ACPI's error device, which in turn notifies the GHES code. The same is true of APEI's GSIV and GPIO notification types. Add support for GSIV and GPIO sharing the SCI register/unregister/notifier code. Rename the list and notifier to show this is no longer just SCI, but anything from the Hardware Error Device. Signed-off-by: Shiju Jose <shiju.jose@huawei.com> [ Rewrite commit log. ] Signed-off-by: James Morse <james.morse@arm.com> [ Some small cleanups ontop. ] Signed-off-by: Borislav Petkov <bp@suse.de> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by: James Morse <james.morse@arm.com> Link: http://lkml.kernel.org/r/86258A5CC0A3704780874CF6004BA8A62E695201@FRAEML521-MBX.china.huawei.com Cc: "Guohanjun (Hanjun Guo)" <guohanjun@huawei.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: "Zhengqiang (turing)" <zhengqiang10@huawei.com> Cc: "fu.wei@linaro.org" <fu.wei@linaro.org> Cc: "xuwei (O)" <xuwei5@hisilicon.com> Cc: Gabriele Paoloni <gabriele.paoloni@huawei.com> Cc: Geliang Tang <geliangtang@gmail.com> Cc: John Garry <john.garry@huawei.com> Cc: Len Brown <lenb@kernel.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: linux-acpi@vger.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | ACPI / APEI: Switch to use new generic UUID APIAndy Shevchenko2017-06-051-4/+4
|/ | | | | | | | | | | There are new types and helpers that are supposed to be used in new code. As a preparation to get rid of legacy types and API functions do the conversion here. Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* treewide: use kv[mz]alloc* rather than opencoded variantsMichal Hocko2017-05-081-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are many code paths opencoding kvmalloc. Let's use the helper instead. The main difference to kvmalloc is that those users are usually not considering all the aspects of the memory allocator. E.g. allocation requests <= 32kB (with 4kB pages) are basically never failing and invoke OOM killer to satisfy the allocation. This sounds too disruptive for something that has a reasonable fallback - the vmalloc. On the other hand those requests might fallback to vmalloc even when the memory allocator would succeed after several more reclaim/compaction attempts previously. There is no guarantee something like that happens though. This patch converts many of those places to kv[mz]alloc* helpers because they are more conservative. Link: http://lkml.kernel.org/r/20170306103327.2766-2-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> # Xen bits Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Andreas Dilger <andreas.dilger@intel.com> # Lustre Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> # KVM/s390 Acked-by: Dan Williams <dan.j.williams@intel.com> # nvdim Acked-by: David Sterba <dsterba@suse.com> # btrfs Acked-by: Ilya Dryomov <idryomov@gmail.com> # Ceph Acked-by: Tariq Toukan <tariqt@mellanox.com> # mlx4 Acked-by: Leon Romanovsky <leonro@mellanox.com> # mlx5 Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Tony Luck <tony.luck@intel.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Santosh Raspatur <santosh@chelsio.com> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Yishai Hadas <yishaih@mellanox.com> Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: "Yan, Zheng" <zyan@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'pstore-v4.12-rc1' of ↵Linus Torvalds2017-05-021-38/+26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull pstore updates from Kees Cook: "This has a large internal refactoring along with several smaller fixes. - constify compression structures; Bhumika Goyal - restore powerpc dumping; Ankit Kumar - fix more bugs in the rarely exercises module unloading logic - reorganize filesystem locking to fix problems noticed by lockdep - refactor internal pstore APIs to make development and review easier: - improve error reporting - add kernel-doc structure and function comments - avoid insane argument passing by using a common record structure" * tag 'pstore-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits) pstore: Solve lockdep warning by moving inode locks pstore: Fix flags to enable dumps on powerpc pstore: Remove unused vmalloc.h in pmsg pstore: simplify write_user_compat() pstore: Remove write_buf() callback pstore: Replace arguments for write_buf_user() API pstore: Replace arguments for write_buf() API pstore: Replace arguments for erase() API pstore: Do not duplicate record metadata pstore: Allocate records on heap instead of stack pstore: Pass record contents instead of copying pstore: Always allocate buffer for decompression pstore: Replace arguments for write() API pstore: Replace arguments for read() API pstore: Switch pstore_mkfile to pass record pstore: Move record decompression to function pstore: Extract common arguments into structure pstore: Add kernel-doc for struct pstore_info pstore: Improve register_pstore() error reporting pstore: Avoid race in module unloading ...
| * pstore: Replace arguments for erase() APIKees Cook2017-03-071-5/+3
| | | | | | | | | | | | | | This removes the argument list for the erase() callback and replaces it with a pointer to the backend record details to be removed. Signed-off-by: Kees Cook <keescook@chromium.org>
| * pstore: Replace arguments for write() APIKees Cook2017-03-071-11/+7
| | | | | | | | | | | | | | | | Similar to the pstore_info read() callback, there were too many arguments. This switches to the new struct pstore_record pointer instead. This adds "reason" and "part" to the record structure as well. Signed-off-by: Kees Cook <keescook@chromium.org>
| * pstore: Replace arguments for read() APIKees Cook2017-03-071-22/+16
| | | | | | | | | | | | | | | | The argument list for the pstore_read() interface is unwieldy. This changes passes the new struct pstore_record instead. The erst backend was already doing something similar internally. Signed-off-by: Kees Cook <keescook@chromium.org>
* | Merge branch 'ras-core-for-linus' of ↵Linus Torvalds2017-05-011-3/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS updates from Ingo Molnar: "The main changes in this cycle were: - add the 'Corrected Errors Collector' kernel feature which collect and monitor correctable errors statistics and will preemptively (soft-)offline physical pages that have a suspiciously high error count. - handle MCE errors during kexec() more gracefully - factor out and deprecate the /dev/mcelog driver - ... plus misc fixes and cleanpus" * 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Check MCi_STATUS[MISCV] for usable addr on Intel only ACPI/APEI: Use setup_deferrable_timer() x86/mce: Update notifier priority check x86/mce: Enable PPIN for Knights Landing/Mill x86/mce: Do not register notifiers with invalid prio x86/mce: Factor out and deprecate the /dev/mcelog driver RAS: Add a Corrected Errors Collector x86/mce: Rename mce_log to mce_log_buffer x86/mce: Rename mce_log()'s argument x86/mce: Init some CPU features early x86/mce: Handle broadcasted MCE gracefully with kexec
| * | ACPI/APEI: Use setup_deferrable_timer()Geliang Tang2017-04-191-3/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | Use setup_deferrable_timer() instead of init_timer_deferrable() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Len Brown <lenb@kernel.org> Cc: linux-acpi@vger.kernel.org Link: http://lkml.kernel.org/r/3afa5498142ef68256023257dad37b9f8352e65e.1489060803.git.geliangtang@gmail.com Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* / ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removalJames Morse2017-03-281-0/+1
|/ | | | | | | | | | | | When removing a GHES device notified by SCI, list_del_rcu() is used, ghes_remove() should call synchronize_rcu() before it goes on to call kfree(ghes), otherwise concurrent RCU readers may still hold this list entry after it has been freed. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: "Huang, Ying" <ying.huang@intel.com> Fixes: 81e88fdc432a (ACPI, APEI, Generic Hardware Error Source POLL/IRQ/NMI notification type support) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* Merge branch 'WIP.sched-core-for-linus' of ↵Linus Torvalds2017-03-031-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull sched.h split-up from Ingo Molnar: "The point of these changes is to significantly reduce the <linux/sched.h> header footprint, to speed up the kernel build and to have a cleaner header structure. After these changes the new <linux/sched.h>'s typical preprocessed size goes down from a previous ~0.68 MB (~22K lines) to ~0.45 MB (~15K lines), which is around 40% faster to build on typical configs. Not much changed from the last version (-v2) posted three weeks ago: I eliminated quirks, backmerged fixes plus I rebased it to an upstream SHA1 from yesterday that includes most changes queued up in -next plus all sched.h changes that were pending from Andrew. I've re-tested the series both on x86 and on cross-arch defconfigs, and did a bisectability test at a number of random points. I tried to test as many build configurations as possible, but some build breakage is probably still left - but it should be mostly limited to architectures that have no cross-compiler binaries available on kernel.org, and non-default configurations" * 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (146 commits) sched/headers: Clean up <linux/sched.h> sched/headers: Remove #ifdefs from <linux/sched.h> sched/headers: Remove the <linux/topology.h> include from <linux/sched.h> sched/headers, hrtimer: Remove the <linux/wait.h> include from <linux/hrtimer.h> sched/headers, x86/apic: Remove the <linux/pm.h> header inclusion from <asm/apic.h> sched/headers, timers: Remove the <linux/sysctl.h> include from <linux/timer.h> sched/headers: Remove <linux/magic.h> from <linux/sched/task_stack.h> sched/headers: Remove <linux/sched.h> from <linux/sched/init.h> sched/core: Remove unused prefetch_stack() sched/headers: Remove <linux/rculist.h> from <linux/sched.h> sched/headers: Remove the 'init_pid_ns' prototype from <linux/sched.h> sched/headers: Remove <linux/signal.h> from <linux/sched.h> sched/headers: Remove <linux/rwsem.h> from <linux/sched.h> sched/headers: Remove the runqueue_is_locked() prototype sched/headers: Remove <linux/sched.h> from <linux/sched/hotplug.h> sched/headers: Remove <linux/sched.h> from <linux/sched/debug.h> sched/headers: Remove <linux/sched.h> from <linux/sched/nohz.h> sched/headers: Remove <linux/sched.h> from <linux/sched/stat.h> sched/headers: Remove the <linux/gfp.h> include from <linux/sched.h> sched/headers: Remove <linux/rtmutex.h> from <linux/sched.h> ...
| * sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | <linux/sched/clock.h> We are going to split <linux/sched/clock.h> out of <linux/sched.h>, which will have to be picked up from other headers and .c files. Create a trivial placeholder <linux/sched/clock.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | ACPI: APEI: Fix BERT resources conflict with ACPI NVS areaHuang Ying2017-02-271-8/+12
|/ | | | | | | | | | | | | | | | It was reported that on some machines, there is overlap between ACPI NVS area and BERT address range. This appears reasonable because BERT contents need to be non-volatile across reboot. But this will cause resources conflict in current Linux kernel implementation because the ACPI NVS area is marked as busy. The resource conflict is fixed via excluding the ACPI NVS area when requesting IO resources for BERT. When accessing the BERT contents, the whole BERT address range will be ioremapped and accessed. Reported-and-tested-by: Hans Kristian Rosbach <hansr@raskesider.no> Signed-off-by: Ying Huang <ying.huang@intel.com> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI, APEI, EINJ: fix malformed newline escapeColin Ian King2017-01-311-1/+1
| | | | | | | | | The pr_warn message has a malformed newline escape, add in the missing \ Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI / APEI / ARM64: APEI initial support for ARM64Tomasz Nowicki2016-12-021-3/+10
| | | | | | | | | | | | | | | | | | | | | This patch provides APEI arch-specific bits for ARM64 Meanwhile, (1) Move HEST type (ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) checking to a generic place. (2) Select HAVE_ACPI_APEI when EFI and ACPI is set on ARM64, because arch_apei_get_mem_attribute is using efi_mem_attributes() on ARM64. Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Tested-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Signed-off-by: Fu Wei <fu.wei@linaro.org> [ Fu Wei: improve && upstream ] Acked-by: Hanjun Guo <hanjun.guo@linaro.org> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Acked-by: Will Deacon <will.deacon@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* ACPI / APEI: Fix NMI notification handlingPrarit Bhargava2016-12-021-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When removing and adding cpu 0 on a system with GHES NMI the following stack trace is seen when re-adding the cpu: WARNING: CPU: 0 PID: 0 at arch/x86/kernel/apic/apic.c:1349 setup_local_APIC+ Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 nfs fscache coretemp intel_ra CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.0-rc6+ #2 Call Trace: dump_stack+0x63/0x8e __warn+0xd1/0xf0 warn_slowpath_null+0x1d/0x20 setup_local_APIC+0x275/0x370 apic_ap_setup+0xe/0x20 start_secondary+0x48/0x180 set_init_arg+0x55/0x55 early_idt_handler_array+0x120/0x120 x86_64_start_reservations+0x2a/0x2c x86_64_start_kernel+0x13d/0x14c During the cpu bringup, wakeup_cpu_via_init_nmi() is called and issues an NMI on CPU 0. The GHES NMI handler, ghes_notify_nmi() runs the ghes_proc_irq_work work queue which ends up setting IRQ_WORK_VECTOR (0xf6). The "faulty" IR line set at arch/x86/kernel/apic/apic.c:1349 is also 0xf6 (specifically APIC IRR for irqs 255 to 224 is 0x400000) which confirms that something has set the IRQ_WORK_VECTOR line prior to the APIC being initialized. Commit 2383844d4850 ("GHES: Elliminate double-loop in the NMI handler") incorrectly modified the behavior such that the handler returns NMI_HANDLED only if an error was processed, and incorrectly runs the ghes work queue for every NMI. This patch modifies the ghes_proc_irq_work() to run as it did prior to 2383844d4850 ("GHES: Elliminate double-loop in the NMI handler") by properly returning NMI_HANDLED and only calling the work queue if NMI_HANDLED has been set. Fixes: 2383844d4850 (GHES: Elliminate double-loop in the NMI handler) Signed-off-by: Prarit Bhargava <prarit@redhat.com> Reviewed-by: Borislav Petkov <bp@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-18 15:30:41 +0000