1. 03 Aug, 2016 1 commit
  2. 28 Jul, 2016 2 commits
  3. 27 Jul, 2016 1 commit
    • Dmitry Torokhov's avatar
      Input: i8042 - break load dependency between atkbd/psmouse and i8042 · 40974618
      Dmitry Torokhov authored
      As explained in 1407814240-4275-1-git-send-email-decui@microsoft.com we
      have a hard load dependency between i8042 and atkbd which prevents
      keyboard from working on Gen2 Hyper-V VMs.
      
      > hyperv_keyboard invokes serio_interrupt(), which needs a valid serio
      > driver like atkbd.c.  atkbd.c depends on libps2.c because it invokes
      > ps2_command().  libps2.c depends on i8042.c because it invokes
      > i8042_check_port_owner().  As a result, hyperv_keyboard actually
      > depends on i8042.c.
      >
      > For a Generation 2 Hyper-V VM (meaning no i8042 device emulated), if a
      > Linux VM (like Arch Linux) happens to configure CONFIG_SERIO_I8042=m
      > rather than =y, atkbd.ko can't load because i8042.ko can't load(due to
      > no i8042 device emulated) and finally hyperv_keyboard can't work and
      > the user can't input: https://bugs.archlinux.org/task/39820
      > (Ubuntu/RHEL/SUSE aren't affected since they use CONFIG_SERIO_I8042=y)
      
      To break the dependency we move away from using i8042_check_port_owner()
      and instead allow serio port owner specify a mutex that clients should use
      to serialize PS/2 command stream.
      Reported-by: default avatarMark Laws <mdl@60hz.org>
      Tested-by: default avatarMark Laws <mdl@60hz.org>
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      40974618
  4. 26 Jul, 2016 2 commits
  5. 21 Jul, 2016 1 commit
  6. 19 Jul, 2016 7 commits
  7. 15 Jul, 2016 5 commits
  8. 14 Jul, 2016 9 commits
  9. 29 Jun, 2016 2 commits
  10. 24 Jun, 2016 1 commit
    • Sinclair Yeh's avatar
      Input: vmmouse - remove port reservation · 60842ef8
      Sinclair Yeh authored
      The VMWare EFI BIOS will expose port 0x5658 as an ACPI resource.  This
      causes the port to be reserved by the APCI module as the system comes up,
      making it unavailable to be reserved again by other drivers, thus
      preserving this VMWare port for special use in a VMWare guest.
      
      This port is designed to be shared among multiple VMWare services, such as
      the VMMOUSE.  Because of this, VMMOUSE should not try to reserve this port
      on its own.
      
      The VMWare non-EFI BIOS does not do this to preserve compatibility with
      existing/legacy VMs.  It is known that there is small chance a VM may be
      configured such that these ports get reserved by other non-VMWare devices,
      and if this ever happens, the result is undefined.
      Signed-off-by: default avatarSinclair Yeh <syeh@vmware.com>
      Reviewed-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
      Cc: <stable@vger.kernel.org> # 4.1-
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      60842ef8
  11. 23 Jun, 2016 9 commits