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

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

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?

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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