1. 14 Sep, 2016 4 commits
    • Linus Torvalds's avatar
      Merge tag 'pci-v4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 4cea8776
      Linus Torvalds authored
      Pull PCI fixes from Bjorn Helgaas:
       "Here are two changes for v4.8.  The first fixes a "[Firmware Bug]: reg
        0x10: invalid BAR (can't size)" warning on Haswell, and the second
        fixes a problem in some new runtime suspend functionality we merged
        for v4.8.  Summary:
      
        Enumeration:
          Mark Haswell Power Control Unit as having non-compliant BARs (Bjorn Helgaas)
      
        Power management:
          Fix bridge_d3 update on device removal (Lukas Wunner)"
      
      * tag 'pci-v4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        PCI: Fix bridge_d3 update on device removal
        PCI: Mark Haswell Power Control Unit as having non-compliant BARs
      4cea8776
    • Linus Torvalds's avatar
      Merge branch 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 77e5bdf9
      Linus Torvalds authored
      Pull uaccess fixes from Al Viro:
       "Fixes for broken uaccess primitives - mostly lack of proper zeroing
        in copy_from_user()/get_user()/__get_user(), but for several
        architectures there's more (broken clear_user() on frv and
        strncpy_from_user() on hexagon)"
      
      * 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
        avr32: fix copy_from_user()
        microblaze: fix __get_user()
        microblaze: fix copy_from_user()
        m32r: fix __get_user()
        blackfin: fix copy_from_user()
        sparc32: fix copy_from_user()
        sh: fix copy_from_user()
        sh64: failing __get_user() should zero
        score: fix copy_from_user() and friends
        score: fix __get_user/get_user
        s390: get_user() should zero on failure
        ppc32: fix copy_from_user()
        parisc: fix copy_from_user()
        openrisc: fix copy_from_user()
        nios2: fix __get_user()
        nios2: copy_from_user() should zero the tail of destination
        mn10300: copy_from_user() should zero on access_ok() failure...
        mn10300: failing __get_user() and get_user() should zero
        mips: copy_from_user() must zero the destination on access_ok() failure
        ARC: uaccess: get_user to zero out dest in cause of fault
        ...
      77e5bdf9
    • Linus Torvalds's avatar
      Merge tag 'for-linus-4.8b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip · b8f26e88
      Linus Torvalds authored
      Pull xen regression fix from David Vrabel:
       "Fix SMP boot in arm guests"
      
      * tag 'for-linus-4.8b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
        arm/xen: fix SMP guests boot
      b8f26e88
    • Vitaly Kuznetsov's avatar
      arm/xen: fix SMP guests boot · de75abbe
      Vitaly Kuznetsov authored
      Commit 88e957d6 ("xen: introduce xen_vcpu_id mapping") broke SMP
      ARM guests on Xen. When FIFO-based event channels are in use (this is
      the default), evtchn_fifo_alloc_control_block() is called on
      CPU_UP_PREPARE event and this happens before we set up xen_vcpu_id
      mapping in xen_starting_cpu. Temporary fix the issue by setting direct
      Linux CPU id <-> Xen vCPU id mapping for all possible CPUs at boot. We
      don't currently support kexec/kdump on Xen/ARM so these ids always
      match.
      
      In future, we have several ways to solve the issue, e.g.:
      
      - Eliminate all hypercalls from CPU_UP_PREPARE, do them from the
        starting CPU. This can probably be done for both x86 and ARM and, if
        done, will allow us to get Xen's idea of vCPU id from CPUID/MPIDR on
        the starting CPU directly, no messing with ACPI/device tree
        required.
      
      - Save vCPU id information from ACPI/device tree on ARM and use it to
        initialize xen_vcpu_id mapping. This is the same trick we currently
        do on x86.
      Reported-by: default avatarJulien Grall <julien.grall@arm.com>
      Tested-by: default avatarWei Chen <Wei.Chen@arm.com>
      Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Acked-by: default avatarStefano Stabellini <sstabellini@kernel.org>
      Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
      de75abbe
  2. 13 Sep, 2016 34 commits
  3. 12 Sep, 2016 2 commits