[PATCH v3 0/3] refactor the force-nonpriv handler

[Zhao Yan]

Each ring has 12 force_to_nonpriv registers, the registers written to
those registers will be converted to nonprivleged from privileged.

In this patch set, 
1. let NOPID of each ring to be default value of force_to_nonpriv
registers, which is in accord with guest drivers
2. do not return error in the handlers to avoid guest enter into failsafe
mode
3. refactor the cmd handler to cover only LRI cmd case.


v3: remove the patch to expand force_to_nonpriv registers range to cover
all rings. Because currently in guest drivers, force_to_nonpriv
registers (as one implementation of workaround) are only written in RCS
ring, we don't want to add registers in other rings to add burden for
context save restore.  (zhenyu wang)
v2: split a big patch into 4 smaller patches (zhenyu wang)

Zhao Yan (3):
  drm/i915/gvt: let NOPID be the default value of force_to_nonpriv
    registers
  drm/i915/gvt: do not return error on handling force_to_nonpriv
    registers
  drm/i915/gvt: let force_to_nonpriv cmd handler only valid for LRI cmd

 drivers/gpu/drm/i915/gvt/cmd_parser.c | 26 +++++++++++++++++++++-----
 drivers/gpu/drm/i915/gvt/handlers.c   | 24 +++++++++++++++---------
 2 files changed, 36 insertions(+), 14 deletions(-)

-- 
1.9.1