1. 04 May, 2018 3 commits
    • James Morse's avatar
      arm64: vgic-v2: Fix proxying of cpuif access · b220244d
      James Morse authored
      Proxying the cpuif accesses at EL2 makes use of vcpu_data_guest_to_host
      and co, which check the endianness, which call into vcpu_read_sys_reg...
      which isn't mapped at EL2 (it was inlined before, and got moved OoL
      with the VHE optimizations).
      
      The result is of course a nice panic. Let's add some specialized
      cruft to keep the broken platforms that require this hack alive.
      
      But, this code used vcpu_data_guest_to_host(), which expected us to
      write the value to host memory, instead we have trapped the guest's
      read or write to an mmio-device, and are about to replay it using the
      host's readl()/writel() which also perform swabbing based on the host
      endianness. This goes wrong when both host and guest are big-endian,
      as readl()/writel() will undo the guest's swabbing, causing the
      big-endian value to be written to device-memory.
      
      What needs doing?
      A big-endian guest will have pre-swabbed data before storing, undo this.
      If its necessary for the host, writel() will re-swab it.
      
      For a read a big-endian guest expects to swab the data after the load.
      The hosts's readl() will correct for host endianness, giving us the
      device-memory's value in the register. For a big-endian guest, swab it
      as if we'd only done the load.
      
      For a little-endian guest, nothing needs doing as readl()/writel() leave
      the correct device-memory value in registers.
      
      Tested on Juno with that rarest of things: a big-endian 64K host.
      Based on a patch from Marc Zyngier.
      Reported-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
      Fixes: bf8feb39 ("arm64: KVM: vgic-v2: Add GICV access from HYP")
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      b220244d
    • Valentin Schneider's avatar
      KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance · c3616a07
      Valentin Schneider authored
      One comment still mentioned process_maintenance operations after
      commit af061499 ("KVM: arm/arm64: vgic: Get rid of unnecessary
      process_maintenance operation")
      
      Update the comment to point to vgic_fold_lr_state instead, which
      is where maintenance interrupts are taken care of.
      Acked-by: default avatarChristoffer Dall <christoffer.dall@arm.com>
      Signed-off-by: default avatarValentin Schneider <valentin.schneider@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      c3616a07
    • James Morse's avatar
      KVM: arm64: Fix order of vcpu_write_sys_reg() arguments · 1975fa56
      James Morse authored
      A typo in kvm_vcpu_set_be()'s call:
      | vcpu_write_sys_reg(vcpu, SCTLR_EL1, sctlr)
      causes us to use the 32bit register value as an index into the sys_reg[]
      array, and sail off the end of the linear map when we try to bring up
      big-endian secondaries.
      
      | Unable to handle kernel paging request at virtual address ffff80098b982c00
      | Mem abort info:
      |  ESR = 0x96000045
      |  Exception class = DABT (current EL), IL = 32 bits
      |   SET = 0, FnV = 0
      |   EA = 0, S1PTW = 0
      | Data abort info:
      |   ISV = 0, ISS = 0x00000045
      |   CM = 0, WnR = 1
      | swapper pgtable: 4k pages, 48-bit VAs, pgdp = 000000002ea0571a
      | [ffff80098b982c00] pgd=00000009ffff8803, pud=0000000000000000
      | Internal error: Oops: 96000045 [#1] PREEMPT SMP
      | Modules linked in:
      | CPU: 2 PID: 1561 Comm: kvm-vcpu-0 Not tainted 4.17.0-rc3-00001-ga912e2261ca6-dirty #1323
      | Hardware name: ARM Juno development board (r1) (DT)
      | pstate: 60000005 (nZCv daif -PAN -UAO)
      | pc : vcpu_write_sys_reg+0x50/0x134
      | lr : vcpu_write_sys_reg+0x50/0x134
      
      | Process kvm-vcpu-0 (pid: 1561, stack limit = 0x000000006df4728b)
      | Call trace:
      |  vcpu_write_sys_reg+0x50/0x134
      |  kvm_psci_vcpu_on+0x14c/0x150
      |  kvm_psci_0_2_call+0x244/0x2a4
      |  kvm_hvc_call_handler+0x1cc/0x258
      |  handle_hvc+0x20/0x3c
      |  handle_exit+0x130/0x1ec
      |  kvm_arch_vcpu_ioctl_run+0x340/0x614
      |  kvm_vcpu_ioctl+0x4d0/0x840
      |  do_vfs_ioctl+0xc8/0x8d0
      |  ksys_ioctl+0x78/0xa8
      |  sys_ioctl+0xc/0x18
      |  el0_svc_naked+0x30/0x34
      | Code: 73620291 604d00b0 00201891 1ab10194 (957a33f8)
      |---[ end trace 4b4a4f9628596602 ]---
      
      Fix the order of the arguments.
      
      Fixes: 8d404c4c ("KVM: arm64: Rewrite system register accessors to read/write functions")
      CC: Christoffer Dall <cdall@cs.columbia.edu>
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      1975fa56
  2. 27 Apr, 2018 1 commit
    • Marc Zyngier's avatar
      KVM: arm/arm64: vgic: Fix source vcpu issues for GICv2 SGI · 53692908
      Marc Zyngier authored
      Now that we make sure we don't inject multiple instances of the
      same GICv2 SGI at the same time, we've made another bug more
      obvious:
      
      If we exit with an active SGI, we completely lose track of which
      vcpu it came from. On the next entry, we restore it with 0 as a
      source, and if that wasn't the right one, too bad. While this
      doesn't seem to trouble GIC-400, the architectural model gets
      offended and doesn't deactivate the interrupt on EOI.
      
      Another connected issue is that we will happilly make pending
      an interrupt from another vcpu, overriding the above zero with
      something that is just as inconsistent. Don't do that.
      
      The final issue is that we signal a maintenance interrupt when
      no pending interrupts are present in the LR. Assuming we've fixed
      the two issues above, we end-up in a situation where we keep
      exiting as soon as we've reached the active state, and not be
      able to inject the following pending.
      
      The fix comes in 3 parts:
      - GICv2 SGIs have their source vcpu saved if they are active on
        exit, and restored on entry
      - Multi-SGIs cannot go via the Pending+Active state, as this would
        corrupt the source field
      - Multi-SGIs are converted to using MI on EOI instead of NPIE
      
      Fixes: 16ca6a60 ("KVM: arm/arm64: vgic: Don't populate multiple LRs with the same vintid")
      Reported-by: default avatarMark Rutland <mark.rutland@arm.com>
      Tested-by: default avatarMark Rutland <mark.rutland@arm.com>
      Reviewed-by: default avatarChristoffer Dall <christoffer.dall@arm.com>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      53692908
  3. 20 Apr, 2018 1 commit
    • Marc Zyngier's avatar
      arm/arm64: KVM: Add PSCI version selection API · 85bd0ba1
      Marc Zyngier authored
      Although we've implemented PSCI 0.1, 0.2 and 1.0, we expose either 0.1
      or 1.0 to a guest, defaulting to the latest version of the PSCI
      implementation that is compatible with the requested version. This is
      no different from doing a firmware upgrade on KVM.
      
      But in order to give a chance to hypothetical badly implemented guests
      that would have a fit by discovering something other than PSCI 0.2,
      let's provide a new API that allows userspace to pick one particular
      version of the API.
      
      This is implemented as a new class of "firmware" registers, where
      we expose the PSCI version. This allows the PSCI version to be
      save/restored as part of a guest migration, and also set to
      any supported version if the guest requires it.
      
      Cc: stable@vger.kernel.org #4.16
      Reviewed-by: default avatarChristoffer Dall <cdall@kernel.org>
      Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
      85bd0ba1
  4. 17 Apr, 2018 4 commits
  5. 16 Apr, 2018 5 commits
    • Linus Torvalds's avatar
      Linux 4.17-rc1 · 60cc43fc
      Linus Torvalds authored
      60cc43fc
    • Linus Torvalds's avatar
      Merge tag 'for-4.17-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · e37563bb
      Linus Torvalds authored
      Pull more btrfs updates from David Sterba:
       "We have queued a few more fixes (error handling, log replay,
        softlockup) and the rest is SPDX updates that touche almost all files
        so the diffstat is long"
      
      * tag 'for-4.17-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: Only check first key for committed tree blocks
        btrfs: add SPDX header to Kconfig
        btrfs: replace GPL boilerplate by SPDX -- sources
        btrfs: replace GPL boilerplate by SPDX -- headers
        Btrfs: fix loss of prealloc extents past i_size after fsync log replay
        Btrfs: clean up resources during umount after trans is aborted
        btrfs: Fix possible softlock on single core machines
        Btrfs: bail out on error during replay_dir_deletes
        Btrfs: fix NULL pointer dereference in log_dir_items
      e37563bb
    • Linus Torvalds's avatar
      Merge tag '4.17-rc1SMB3-Fixes' of git://git.samba.org/sfrench/cifs-2.6 · 09c9b0ea
      Linus Torvalds authored
      Pull cifs fixes from Steve French:
       "SMB3 fixes, a few for stable, and some important cleanup work from
        Ronnie of the smb3 transport code"
      
      * tag '4.17-rc1SMB3-Fixes' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: change validate_buf to validate_iov
        cifs: remove rfc1002 hardcoded constants from cifs_discard_remaining_data()
        cifs: Change SMB2_open to return an iov for the error parameter
        cifs: add resp_buf_size to the mid_q_entry structure
        smb3.11: replace a 4 with server->vals->header_preamble_size
        cifs: replace a 4 with server->vals->header_preamble_size
        cifs: add pdu_size to the TCP_Server_Info structure
        SMB311: Improve checking of negotiate security contexts
        SMB3: Fix length checking of SMB3.11 negotiate request
        CIFS: add ONCE flag for cifs_dbg type
        cifs: Use ULL suffix for 64-bit constant
        SMB3: Log at least once if tree connect fails during reconnect
        cifs: smb2pdu: Fix potential NULL pointer dereference
      09c9b0ea
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · f0d98d85
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "This is a set of minor (and safe changes) that didn't make the initial
        pull request plus some bug fixes.
      
        The status handling code is actually a running regression from the
        previous merge window which had an incomplete fix (now reverted) and
        most of the remaining bug fixes are for problems older than the
        current merge window"
      
      [ Side note: this merge also takes the base kernel git repository to 6+
        million objects for the first time. Technically we hit it a couple of
        merges ago already if you count all the tag objects, but now it
        reaches 6M+ objects reachable from HEAD.
      
        I was joking around that that's when I should switch to 5.0, because
        3.0 happened at the 2M mark, and 4.0 happened at 4M objects. But
        probably not, even if numerology is about as good a reason as any.
      
                                                                    - Linus ]
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: devinfo: Add Microsoft iSCSI target to 1024 sector blacklist
        scsi: cxgb4i: silence overflow warning in t4_uld_rx_handler()
        scsi: dpt_i2o: Use after free in I2ORESETCMD ioctl
        scsi: core: Make scsi_result_to_blk_status() recognize CONDITION MET
        scsi: core: Rename __scsi_error_from_host_byte() into scsi_result_to_blk_status()
        Revert "scsi: core: return BLK_STS_OK for DID_OK in __scsi_error_from_host_byte()"
        scsi: aacraid: Insure command thread is not recursively stopped
        scsi: qla2xxx: Correct setting of SAM_STAT_CHECK_CONDITION
        scsi: qla2xxx: correctly shift host byte
        scsi: qla2xxx: Fix race condition between iocb timeout and initialisation
        scsi: qla2xxx: Avoid double completion of abort command
        scsi: qla2xxx: Fix small memory leak in qla2x00_probe_one on probe failure
        scsi: scsi_dh: Don't look for NULL devices handlers by name
        scsi: core: remove redundant assignment to shost->use_blk_mq
      f0d98d85
    • Linus Torvalds's avatar
      Merge tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild · ca71b3ba
      Linus Torvalds authored
      Pull more Kbuild updates from Masahiro Yamada:
      
       - pass HOSTLDFLAGS when compiling single .c host programs
      
       - build genksyms lexer and parser files instead of using shipped
         versions
      
       - rename *-asn1.[ch] to *.asn1.[ch] for suffix consistency
      
       - let the top .gitignore globally ignore artifacts generated by flex,
         bison, and asn1_compiler
      
       - let the top Makefile globally clean artifacts generated by flex,
         bison, and asn1_compiler
      
       - use safer .SECONDARY marker instead of .PRECIOUS to prevent
         intermediate files from being removed
      
       - support -fmacro-prefix-map option to make __FILE__ a relative path
      
       - fix # escaping to prepare for the future GNU Make release
      
       - clean up deb-pkg by using debian tools instead of handrolled
         source/changes generation
      
       - improve rpm-pkg portability by supporting kernel-install as a
         fallback of new-kernel-pkg
      
       - extend Kconfig listnewconfig target to provide more information
      
      * tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kconfig: extend output of 'listnewconfig'
        kbuild: rpm-pkg: use kernel-install as a fallback for new-kernel-pkg
        Kbuild: fix # escaping in .cmd files for future Make
        kbuild: deb-pkg: split generating packaging and build
        kbuild: use -fmacro-prefix-map to make __FILE__ a relative path
        kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers
        kbuild: rename *-asn1.[ch] to *.asn1.[ch]
        kbuild: clean up *-asn1.[ch] patterns from top-level Makefile
        .gitignore: move *-asn1.[ch] patterns to the top-level .gitignore
        kbuild: add %.dtb.S and %.dtb to 'targets' automatically
        kbuild: add %.lex.c and %.tab.[ch] to 'targets' automatically
        genksyms: generate lexer and parser during build instead of shipping
        kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile
        .gitignore: move *.lex.c *.tab.[ch] patterns to the top-level .gitignore
        kbuild: use HOSTLDFLAGS for single .c executables
      ca71b3ba
  6. 15 Apr, 2018 8 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9fb71c2f
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A set of fixes and updates for x86:
      
         - Address a swiotlb regression which was caused by the recent DMA
           rework and made driver fail because dma_direct_supported() returned
           false
      
         - Fix a signedness bug in the APIC ID validation which caused invalid
           APIC IDs to be detected as valid thereby bloating the CPU possible
           space.
      
         - Fix inconsisten config dependcy/select magic for the MFD_CS5535
           driver.
      
         - Fix a corruption of the physical address space bits when encryption
           has reduced the address space and late cpuinfo updates overwrite
           the reduced bit information with the original value.
      
         - Dominiks syscall rework which consolidates the architecture
           specific syscall functions so all syscalls can be wrapped with the
           same macros. This allows to switch x86/64 to struct pt_regs based
           syscalls. Extend the clearing of user space controlled registers in
           the entry patch to the lower registers"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/apic: Fix signedness bug in APIC ID validity checks
        x86/cpu: Prevent cpuinfo_x86::x86_phys_bits adjustment corruption
        x86/olpc: Fix inconsistent MFD_CS5535 configuration
        swiotlb: Use dma_direct_supported() for swiotlb_ops
        syscalls/x86: Adapt syscall_wrapper.h to the new syscall stub naming convention
        syscalls/core, syscalls/x86: Rename struct pt_regs-based sys_*() to __x64_sys_*()
        syscalls/core, syscalls/x86: Clean up compat syscall stub naming convention
        syscalls/core, syscalls/x86: Clean up syscall stub naming convention
        syscalls/x86: Extend register clearing on syscall entry to lower registers
        syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64
        syscalls/x86: Use 'struct pt_regs' based syscall calling for IA32_EMULATION and x32
        syscalls/core: Prepare CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y for compat syscalls
        syscalls/x86: Use 'struct pt_regs' based syscall calling convention for 64-bit syscalls
        syscalls/core: Introduce CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
        x86/syscalls: Don't pointlessly reload the system call number
        x86/mm: Fix documentation of module mapping range with 4-level paging
        x86/cpuid: Switch to 'static const' specifier
      9fb71c2f
    • Linus Torvalds's avatar
      Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6b0a02e8
      Linus Torvalds authored
      Pull x86 pti updates from Thomas Gleixner:
       "Another series of PTI related changes:
      
         - Remove the manual stack switch for user entries from the idtentry
           code. This debloats entry by 5k+ bytes of text.
      
         - Use the proper types for the asm/bootparam.h defines to prevent
           user space compile errors.
      
         - Use PAGE_GLOBAL for !PCID systems to gain back performance
      
         - Prevent setting of huge PUD/PMD entries when the entries are not
           leaf entries otherwise the entries to which the PUD/PMD points to
           and are populated get lost"
      
      * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/pgtable: Don't set huge PUD/PMD on non-leaf entries
        x86/pti: Leave kernel text global for !PCID
        x86/pti: Never implicitly clear _PAGE_GLOBAL for kernel image
        x86/pti: Enable global pages for shared areas
        x86/mm: Do not forbid _PAGE_RW before init for __ro_after_init
        x86/mm: Comment _PAGE_GLOBAL mystery
        x86/mm: Remove extra filtering in pageattr code
        x86/mm: Do not auto-massage page protections
        x86/espfix: Document use of _PAGE_GLOBAL
        x86/mm: Introduce "default" kernel PTE mask
        x86/mm: Undo double _PAGE_PSE clearing
        x86/mm: Factor out pageattr _PAGE_GLOBAL setting
        x86/entry/64: Drop idtentry's manual stack switch for user entries
        x86/uapi: Fix asm/bootparam.h userspace compilation errors
      6b0a02e8
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 71b8ebbf
      Linus Torvalds authored
      Pull scheduler fixes from Thomas Gleixner:
       "A few scheduler fixes:
      
         - Prevent a bogus warning vs. runqueue clock update flags in
           do_sched_rt_period_timer()
      
         - Simplify the helper functions which handle requests for skipping
           the runqueue clock updat.
      
         - Do not unlock the tunables mutex in the error path of the cpu
           frequency scheduler utils. Its not held.
      
         - Enforce proper alignement for 'struct util_est' in sched_avg to
           prevent a misalignment fault on IA64"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/core: Force proper alignment of 'struct util_est'
        sched/core: Simplify helpers for rq clock update skip requests
        sched/rt: Fix rq->clock_update_flags < RQCF_ACT_SKIP warning
        sched/cpufreq/schedutil: Fix error path mutex unlock
      71b8ebbf
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 174e7194
      Linus Torvalds authored
      Pull more perf updates from Thomas Gleixner:
       "A rather large set of perf updates:
      
        Kernel:
      
         - Fix various initialization issues
      
         - Prevent creating [ku]probes for not CAP_SYS_ADMIN users
      
        Tooling:
      
         - Show only failing syscalls with 'perf trace --failure' (Arnaldo
           Carvalho de Melo)
      
                  e.g: See what 'openat' syscalls are failing:
      
              # perf trace --failure -e openat
               762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory
               <SNIP N /dev/videoN open attempts... sigh, where is that improvised camera lid?!? >
               790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory
              ^C#
      
         - Show information about the event (freq, nr_samples, total
           period/nr_events) in the annotate --tui and --stdio2 'perf
           annotate' output, similar to the first line in the 'perf report
           --tui', but just for the samples for a the annotated symbol
           (Arnaldo Carvalho de Melo)
      
         - Introduce 'perf version --build-options' to show what features were
           linked, aliased as well as a shorter 'perf -vv' (Jin Yao)
      
         - Add a "dso_size" sort order (Kim Phillips)
      
         - Remove redundant ')' in the tracepoint output in 'perf trace'
           (Changbin Du)
      
         - Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo
           Carvalho de Melo)
      
         - Show group details on the title line in the annotate browser and
           'perf annotate --stdio2' output, so that the per-event columns can
           have headers (Arnaldo Carvalho de Melo)
      
         - Fixup vertical line separating metrics from instructions and
           cleaning unused lines at the bottom, both in the annotate TUI
           browser (Arnaldo Carvalho de Melo)
      
         - Remove duplicated 'samples' in lost samples warning in
           'perf report' (Arnaldo Carvalho de Melo)
      
         - Synchronize i915_drm.h, silencing the perf build process,
           automagically adding support for the new DRM_I915_QUERY ioctl
           (Arnaldo Carvalho de Melo)
      
         - Make auxtrace_queues__add_buffer() allocate struct buffer, from a
           patchkit already applied (Adrian Hunter)
      
         - Fix the --stdio2/TUI annotate output to include group details, be
           it for a recorded '{a,b,f}' explicit event group or when forcing
           group display using 'perf report --group' for a set of events not
           recorded as a group (Arnaldo Carvalho de Melo)
      
         - Fix display artifacts in the ui browser (base class for the
           annotate and main report/top TUI browser) related to the extra
           title lines work (Arnaldo Carvalho de Melo)
      
         - perf auxtrace refactorings, leftovers from a previously partially
           processed patchset (Adrian Hunter)
      
         - Fix the builtin clang build (Sandipan Das, Arnaldo Carvalho de
           Melo)
      
         - Synchronize i915_drm.h, silencing a perf build warning and in the
           process automagically adding support for a new ioctl command
           (Arnaldo Carvalho de Melo)
      
         - Fix a strncpy issue in uprobe tracing"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
        perf/core: Need CAP_SYS_ADMIN to create k/uprobe with perf_event_open()
        tracing/uprobe_event: Fix strncpy corner case
        perf/core: Fix perf_uprobe_init()
        perf/core: Fix perf_kprobe_init()
        perf/core: Fix use-after-free in uprobe_perf_close()
        perf tests clang: Fix function name for clang IR test
        perf clang: Add support for recent clang versions
        perf tools: Fix perf builds with clang support
        perf tools: No need to include namespaces.h in util.h
        perf hists browser: Remove leftover from row returned from refresh
        perf hists browser: Show extra_title_lines in the 'D' debug hotkey
        perf auxtrace: Make auxtrace_queues__add_buffer() do CPU filtering
        tools headers uapi: Synchronize i915_drm.h
        perf report: Remove duplicated 'samples' in lost samples warning
        perf ui browser: Fixup cleaning unused lines at the bottom
        perf annotate browser: Fixup vertical line separating metrics from instructions
        perf annotate: Show group details on the title line
        perf auxtrace: Make auxtrace_queues__add_buffer() allocate struct buffer
        perf/x86/intel: Move regs->flags EXACT bit init
        perf trace: Remove redundant ')'
        ...
      174e7194
    • Linus Torvalds's avatar
      Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 19ca90de
      Linus Torvalds authored
      Pull x86 EFI bootup fixlet from Thomas Gleixner:
       "A single fix for an early boot warning caused by invoking
        this_cpu_has() before SMP initialization"
      
      * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mm: Fix bogus warning during EFI bootup, use boot_cpu_has() instead of this_cpu_has() in build_cr3_noflush()
      19ca90de
    • Linus Torvalds's avatar
      Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 68d54d3f
      Linus Torvalds authored
      Pull irq affinity fixes from Thomas Gleixner:
      
        - Fix error path handling in the affinity spreading code
      
        - Make affinity spreading smarter to avoid issues on systems which
          claim to have hotpluggable CPUs while in fact they can't hotplug
          anything.
      
          So instead of trying to spread the vectors (and thereby the
          associated device queues) to all possibe CPUs, spread them on all
          present CPUs first. If there are left over vectors after that first
          step they are spread among the possible, but not present CPUs which
          keeps the code backwards compatible for virtual decives and NVME
          which allocate a queue per possible CPU, but makes the spreading
          smarter for devices which have less queues than possible or present
          CPUs.
      
      * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        genirq/affinity: Spread irq vectors among present CPUs as far as possible
        genirq/affinity: Allow irq spreading from a given starting point
        genirq/affinity: Move actual irq vector spreading into a helper function
        genirq/affinity: Rename *node_to_possible_cpumask as *node_to_cpumask
        genirq/affinity: Don't return with empty affinity masks on error
      68d54d3f
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://github.com/openrisc/linux · 9dceab89
      Linus Torvalds authored
      Pull OpenRISC fixlet from Stafford Horne:
       "Just one small thing here, it came in a while back but I didnt have
        anything in my 4.16 queue, still its the only thing for 4.17 so
        sending it alone.
      
        Small cleanup: remove unused __ARCH_HAVE_MMU define"
      
      * tag 'for-linus' of git://github.com/openrisc/linux:
        openrisc: remove unused __ARCH_HAVE_MMU define
      9dceab89
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · b1cb4f93
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
      
       - Fix crashes when loading modules built with a different
         CONFIG_RELOCATABLE value by adding CONFIG_RELOCATABLE to vermagic.
      
       - Fix busy loops in the OPAL NVRAM driver if we get certain error
         conditions from firmware.
      
       - Remove tlbie trace points from KVM code that's called in real mode,
         because it causes crashes.
      
       - Fix checkstops caused by invalid tlbiel on Power9 Radix.
      
       - Ensure the set of CPU features we "know" are always enabled is
         actually the minimal set when we build with support for firmware
         supplied CPU features.
      
      Thanks to: Aneesh Kumar K.V, Anshuman Khandual, Nicholas Piggin.
      
      * tag 'powerpc-4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/64s: Fix CPU_FTRS_ALWAYS vs DT CPU features
        powerpc/mm/radix: Fix checkstops caused by invalid tlbiel
        KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode
        powerpc/8xx: Fix build with hugetlbfs enabled
        powerpc/powernv: Fix OPAL NVRAM driver OPAL_BUSY loops
        powerpc/powernv: define a standard delay for OPAL_BUSY type retry loops
        powerpc/fscr: Enable interrupts earlier before calling get_user()
        powerpc/64s: Fix section mismatch warnings from setup_rfi_flush()
        powerpc/modules: Fix crashes by adding CONFIG_RELOCATABLE to vermagic
      b1cb4f93
  7. 14 Apr, 2018 18 commits