[Xen-devel] [PATCH 0/2] libxl: try to support IGD passthrough for qemu upstream

[Tiejun Chen <tiejun.chen@xxxxxxxxx>]

When we're working to support IGD GFX passthrough with qemu
upstream, instead of "-gfx_passthru" we'd like to make that
a machine option, "-machine xxx,igd-passthru=on". This need
to bring a change on tool side.

After a discussion with Campbell, we'd like to construct a table to record
all IGD devices we can support. If we hit that table, we should pass that
option. And so we also introduce a new field of type, 'gfx_passthru_kind',
to cooperate with 'gfx_passthru' to cover all scenarios like this,

    gfx_passthru = 0    => sets build_info.u.gfx_passthru to false
    gfx_passthru = 1    => sets build_info.u.gfx_passthru to false and
                           build_info.u.gfx_passthru_kind to DEFAULT
    gfx_passthru = "igd"    => sets build_info.u.gfx_passthru to false
                               and build_info.u.gfx_passthru_kind to IGD

----------------------------------------------------------------
Tiejun Chen (2):
      libxl: introduce libxl__is_igd_vga_passthru
      libxl: introduce gfx_passthru_kind
 
 tools/libxl/libxl_dm.c       |  13 +++++++++++++
 tools/libxl/libxl_internal.h |   2 ++
 tools/libxl/libxl_pci.c      | 124 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 tools/libxl/libxl_types.idl  |   6 ++++++
 tools/libxl/xl_cmdimpl.c     |  19 +++++++++++++++++--
 5 files changed, 162 insertions(+), 2 deletions(-)

Thanks
Tiejun

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