1. 06 Jan, 2014 25 commits
  2. 03 Jan, 2014 2 commits
    • Konrad Rzeszutek Wilk's avatar
      xen/pvhvm: Remove the xen_platform_pci int. · 6f6c15ef
      Konrad Rzeszutek Wilk authored
      Since we have  xen_has_pv_devices,xen_has_pv_disk_devices,
      xen_has_pv_nic_devices, and xen_has_pv_and_legacy_disk_devices
      to figure out the different 'unplug' behaviors - lets
      use those instead of this single int.
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      6f6c15ef
    • Konrad Rzeszutek Wilk's avatar
      xen/pvhvm: If xen_platform_pci=0 is set don't blow up (v4). · 51c71a3b
      Konrad Rzeszutek Wilk authored
      The user has the option of disabling the platform driver:
      00:02.0 Unassigned class [ff80]: XenSource, Inc. Xen Platform Device (rev 01)
      
      which is used to unplug the emulated drivers (IDE, Realtek 8169, etc)
      and allow the PV drivers to take over. If the user wishes
      to disable that they can set:
      
        xen_platform_pci=0
        (in the guest config file)
      
      or
        xen_emul_unplug=never
        (on the Linux command line)
      
      except it does not work properly. The PV drivers still try to
      load and since the Xen platform driver is not run - and it
      has not initialized the grant tables, most of the PV drivers
      stumble upon:
      
      input: Xen Virtual Keyboard as /devices/virtual/input/input5
      input: Xen Virtual Pointer as /devices/virtual/input/input6M
      ------------[ cut here ]------------
      kernel BUG at /home/konrad/ssd/konrad/linux/drivers/xen/grant-table.c:1206!
      invalid opcode: 0000 [#1] SMP
      Modules linked in: xen_kbdfront(+) xenfs xen_privcmd
      CPU: 6 PID: 1389 Comm: modprobe Not tainted 3.13.0-rc1upstream-00021-ga6c892b-dirty #1
      Hardware name: Xen HVM domU, BIOS 4.4-unstable 11/26/2013
      RIP: 0010:[<ffffffff813ddc40>]  [<ffffffff813ddc40>] get_free_entries+0x2e0/0x300
      Call Trace:
       [<ffffffff8150d9a3>] ? evdev_connect+0x1e3/0x240
       [<ffffffff813ddd0e>] gnttab_grant_foreign_access+0x2e/0x70
       [<ffffffffa0010081>] xenkbd_connect_backend+0x41/0x290 [xen_kbdfront]
       [<ffffffffa0010a12>] xenkbd_probe+0x2f2/0x324 [xen_kbdfront]
       [<ffffffff813e5757>] xenbus_dev_probe+0x77/0x130
       [<ffffffff813e7217>] xenbus_frontend_dev_probe+0x47/0x50
       [<ffffffff8145e9a9>] driver_probe_device+0x89/0x230
       [<ffffffff8145ebeb>] __driver_attach+0x9b/0xa0
       [<ffffffff8145eb50>] ? driver_probe_device+0x230/0x230
       [<ffffffff8145eb50>] ? driver_probe_device+0x230/0x230
       [<ffffffff8145cf1c>] bus_for_each_dev+0x8c/0xb0
       [<ffffffff8145e7d9>] driver_attach+0x19/0x20
       [<ffffffff8145e260>] bus_add_driver+0x1a0/0x220
       [<ffffffff8145f1ff>] driver_register+0x5f/0xf0
       [<ffffffff813e55c5>] xenbus_register_driver_common+0x15/0x20
       [<ffffffff813e76b3>] xenbus_register_frontend+0x23/0x40
       [<ffffffffa0015000>] ? 0xffffffffa0014fff
       [<ffffffffa001502b>] xenkbd_init+0x2b/0x1000 [xen_kbdfront]
       [<ffffffff81002049>] do_one_initcall+0x49/0x170
      
      .. snip..
      
      which is hardly nice. This patch fixes this by having each
      PV driver check for:
       - if running in PV, then it is fine to execute (as that is their
         native environment).
       - if running in HVM, check if user wanted 'xen_emul_unplug=never',
         in which case bail out and don't load any PV drivers.
       - if running in HVM, and if PCI device 5853:0001 (xen_platform_pci)
         does not exist, then bail out and not load PV drivers.
       - (v2) if running in HVM, and if the user wanted 'xen_emul_unplug=ide-disks',
         then bail out for all PV devices _except_ the block one.
         Ditto for the network one ('nics').
       - (v2) if running in HVM, and if the user wanted 'xen_emul_unplug=unnecessary'
         then load block PV driver, and also setup the legacy IDE paths.
         In (v3) make it actually load PV drivers.
      
      Reported-by: Sander Eikelenboom <linux@eikelenboom.it
      Reported-by: default avatarAnthony PERARD <anthony.perard@citrix.com>
      Reported-and-Tested-by: default avatarFabio Fantoni <fabio.fantoni@m2r.biz>
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      [v2: Add extra logic to handle the myrid ways 'xen_emul_unplug'
      can be used per Ian and Stefano suggestion]
      [v3: Make the unnecessary case work properly]
      [v4: s/disks/ide-disks/ spotted by Fabio]
      Reviewed-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
      Acked-by: Bjorn Helgaas <bhelgaas@google.com> [for PCI parts]
      CC: stable@vger.kernel.org
      51c71a3b
  3. 30 Dec, 2013 1 commit
  4. 29 Dec, 2013 3 commits
    • Linus Torvalds's avatar
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · d7ada73c
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "Another smallish batch of fixes, it's been quiet due to the holidays.
        Nothing controversial here, a handful of things across the board"
      
      * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: pxa: fix USB gadget driver compilation regression
        ARM: OMAP2+: Fix LCD panel backlight regression for LDP legacy booting
        ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq data
        ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL
        ARM: shmobile: r8a7790: fix shdi resource sizes
        ARM: shmobile: bockw: fixup DMA mask
        ARM: shmobile: armadillo: Add PWM backlight power supply
      d7ada73c
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 8cf126d9
      Linus Torvalds authored
      Pull x86 fixes from Peter Anvin:
       "There is a small EFI fix and a big power regression fix in this batch.
      
        My queue also had a fix for downing a CPU when there are insufficient
        number of IRQ vectors available, but I'm holding that one for now due
        to recent bug reports"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/efi: Don't select EFI from certain special ACPI drivers
        x86 idle: Repair large-server 50-watt idle-power regression
      8cf126d9
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · bddffa28
      Linus Torvalds authored
      Pull ACPI and power management fixes and new device IDs from Rafael Wysocki:
      
       - Fix for a cpufreq regression causing stale sysfs files to be left
         behind during system resume if cpufreq_add_dev() fails for one or
         more CPUs from Viresh Kumar.
      
       - Fix for a bug in cpufreq causing CONFIG_CPU_FREQ_DEFAULT_* to be
         ignored when the intel_pstate driver is used from Jason Baron.
      
       - System suspend fix for a memory leak in pm_vt_switch_unregister()
         that forgot to release objects after removing them from
         pm_vt_switch_list.  From Masami Ichikawa.
      
       - Intel Valley View device ID and energy unit encoding update for the
         (recently added) Intel RAPL (Running Average Power Limit) driver from
         Jacob Pan.
      
       - Intel Bay Trail SoC GPIO and ACPI device IDs for the Low Power
         Subsystem (LPSS) ACPI driver from Paul Drews.
      
      * tag 'pm+acpi-3.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        powercap / RAPL: add support for ValleyView Soc
        PM / sleep: Fix memory leak in pm_vt_switch_unregister().
        cpufreq: Use CONFIG_CPU_FREQ_DEFAULT_* to set initial policy for setpolicy drivers
        cpufreq: remove sysfs files for CPUs which failed to come back after resume
        ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs
      bddffa28
  5. 28 Dec, 2013 3 commits
  6. 27 Dec, 2013 2 commits
  7. 26 Dec, 2013 4 commits
    • Rafael J. Wysocki's avatar
      Merge branches 'powercap' and 'acpi-lpss' with new device IDs · bfde19c4
      Rafael J. Wysocki authored
      * powercap:
        powercap / RAPL: add support for ValleyView Soc
      
      * acpi-lpss:
        ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs
      bfde19c4
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-cpufreq' and 'pm-sleep' containing PM fixes · 1a672535
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: Use CONFIG_CPU_FREQ_DEFAULT_* to set initial policy for setpolicy drivers
        cpufreq: remove sysfs files for CPUs which failed to come back after resume
      
      * pm-sleep:
        PM / sleep: Fix memory leak in pm_vt_switch_unregister().
      1a672535
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · f41bfc94
      Linus Torvalds authored
      Pull ext4 fixes from Ted Ts'o:
       "A collection of bug fixes destined for stable and some printk cleanups
        and a patch so that instead of BUG'ing we use the ext4_error()
        framework to mark the file system is corrupted"
      
      * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
        ext4: add explicit casts when masking cluster sizes
        ext4: fix deadlock when writing in ENOSPC conditions
        jbd2: rename obsoleted msg JBD->JBD2
        jbd2: revise KERN_EMERG error messages
        jbd2: don't BUG but return ENOSPC if a handle runs out of space
        ext4: Do not reserve clusters when fs doesn't support extents
        ext4: fix del_timer() misuse for ->s_err_report
        ext4: check for overlapping extents in ext4_valid_extent_entries()
        ext4: fix use-after-free in ext4_mb_new_blocks
        ext4: call ext4_error_inode() if jbd2_journal_dirty_metadata() fails
      f41bfc94
    • Suman Anna's avatar
      ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq data · 6d4c8830
      Suman Anna authored
      Commit 7d7e1eba (ARM: OMAP2+: Prepare for irqs.h removal) and commit
      ec2c0825 (ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ)
      updated the way interrupts for OMAP2/3 devices are defined in the
      HWMOD data structures to being an index plus a fixed offset (defined
      by OMAP_INTC_START).
      
      Couple of irqs in the OMAP2/3 hwmod data were misconfigured completely
      as they were missing this OMAP_INTC_START relative offset. Add this
      offset back to fix the incorrect irq data for the following modules:
      	OMAP2 - GPMC, RNG
      	OMAP3 - GPMC, ISP MMU & IVA MMU
      Signed-off-by: default avatarSuman Anna <s-anna@ti.com>
      Fixes: 7d7e1eba ("ARM: OMAP2+: Prepare for irqs.h removal")
      Fixes: ec2c0825 ("ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ")
      Cc: Tony Lindgren <tony@atomide.com>
      Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
      6d4c8830