[Qemu-devel] [PATCH 0/1] Add support for DRM IOCTLs to QEMU user mode virtualization.

[Aaditya Chandrasekhar Azad]

This patch adds initial user-virtualization support for the DRM (type
'd') IOCTLs in linux. With it and a corresponding architecture chroot
(say aarch64), I am able to successfully run a few 2D and 3D
applications with native graphics acceleration. Some notes/caveats
are:

1. It will only work with open drivers as their IOCTLs are documented.
2. i965+ is only supported. That is any haswell, ivybridge, etc. GPU will work.
3. X doesn't start yet, though this patch eliminates all the visible
unsupported DRM IOCTL calls as observed by setting QEMU_STRACE=1.
4. Intel open drivers components except for Beignet are architecture
independent AFAICT and compile cleanly in foreign architecture
environments.
5. The DRM table provided is current as of linux-3.17-rc2, however,
compiling it with older kernel headers might require conditional
guards that this patch doesn't provide yet.
6. syscalls.c now includes <drm/*.h> files, which should be available
in any valid linux-user build environment.

Using a Debian aarch64 chroot on ubuntu amd64, I have successfully run
nexuiz and
compiled and run qemu-system-i386 with SDL emulation (+ patch for
forcing OpenGL).

Aaditya Chandrasekhar Azad (1):
  Add support for DRM IOCTLs to QEMU user mode virtualization.

 linux-user/ioctls.h        | 137 ++++++++++
 linux-user/syscall.c       |   2 +
 linux-user/syscall_defs.h  | 139 ++++++++++
 linux-user/syscall_types.h | 651 +++++++++++++++++++++++++++++++++++++++++++++
 thunk.c                    |   2 +-
 5 files changed, 930 insertions(+), 1 deletion(-)

-- 
2.1.0.60.g85f0837