[Qemu-commits] [qemu/qemu] 93587e: Revert "vfio/pci-quirks.c: Disable stolen memory f...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: 93587e3af3a259deac89c12863d93653d69d22b8
      
https://github.com/qemu/qemu/commit/93587e3af3a259deac89c12863d93653d69d22b8
  Author: Xiong Zhang <address@hidden>
  Date:   2017-03-31 (Fri, 31 Mar 2017)

  Changed paths:
    M hw/vfio/pci-quirks.c

  Log Message:
  -----------
  Revert "vfio/pci-quirks.c: Disable stolen memory for igd VFIO"

This reverts commit c2b2e158cc7b1cb431bd6039824ec13c3184a775.

The original patch intend to prevent linux i915 driver from using
stolen meory. But this patch breaks windows IGD driver loading on
Gen9+, as IGD HW will use stolen memory on Gen9+, once windows IGD
driver see zero size stolen memory, it will unload.
Meanwhile stolen memory will be disabled in 915 when i915 run as
a guest.

Signed-off-by: Xiong Zhang <address@hidden>
[aw: Gen9+ is SkyLake and newer]
Signed-off-by: Alex Williamson <address@hidden>


  Commit: 95b31d709ba343ad237c3630047ee7438bac4065
      
https://github.com/qemu/qemu/commit/95b31d709ba343ad237c3630047ee7438bac4065
  Author: Peter Maydell <address@hidden>
  Date:   2017-03-31 (Fri, 31 Mar 2017)

  Changed paths:
    M hw/vfio/pci-quirks.c

  Log Message:
  -----------
  Merge remote-tracking branch 'remotes/awilliam/tags/vfio-updates-20170331.0' 
into staging

VFIO fixes 2017-03-31

 - We can't disable stolen memory for UPT mode, it breaks Windows
   drivers on Gen9+ IGD (Xiong Zhang)

# gpg: Signature made Fri 31 Mar 2017 17:13:48 BST
# gpg:                using RSA key 0x239B9B6E3BB08B22
# gpg: Good signature from "Alex Williamson <address@hidden>"
# gpg:                 aka "Alex Williamson <address@hidden>"
# gpg:                 aka "Alex Williamson <address@hidden>"
# gpg:                 aka "Alex Williamson <address@hidden>"
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B  8A90 239B 9B6E 3BB0 8B22

* remotes/awilliam/tags/vfio-updates-20170331.0:
  Revert "vfio/pci-quirks.c: Disable stolen memory for igd VFIO"

Signed-off-by: Peter Maydell <address@hidden>


Compare: https://github.com/qemu/qemu/compare/37c4a85cd256...95b31d709ba3