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



On 2015/3/6 23:53, Konrad Rzeszutek Wilk wrote:
On Fri, Mar 06, 2015 at 05:08:21PM +0800, Tiejun Chen wrote:
When we're working to support IGD GFX passthrough with qemu
upstream, instead of "-gfx_passthru" we'd like to make that

Could you also include in the cover letter an URL link to the latest
discussion on this?

Thanks for reminding. I really should do this.

https://lists.nongnu.org/archive/html/qemu-devel/2015-01/msg02050.html

Thanks
Tiejun


Thank you.
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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