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[Qemu-devel] [v3][PATCH 0/8] xen: add Intel IGD passthrough support
From: |
Tiejun Chen |
Subject: |
[Qemu-devel] [v3][PATCH 0/8] xen: add Intel IGD passthrough support |
Date: |
Mon, 26 May 2014 17:36:30 +0800 |
v3:
* In this case, as we discussed we will give priority to devices to
reserve a specific devfn by passing
"device_model_args_hvm = ['-device', 'xen-platform,addr=0x3']" and
"vga=none", so withdraw patch #1, #2 and #4.
* Fix some typos.
* Add more comments to make that readable.
* To unmap igd_opregion when call xen_pt_unregister_vga_regions().
* Improve some return paths.
* Force to convert igd_guest/host_opoegion as an unsigned long type
while calling xc_domain_memory_mapping().
* We need to map 3 pages for opregion as hvmloader set.
v2:
* rebase on current qemu tree.
* retrieve VGA bios from sysfs properly.
* redefine some function name.
* introduce bitmap to manage registe/runregister pci dev, and provide
a common way to reserve some specific devfn.
* introduce is_igd_passthrough() to make sure we touch physical host
bridge only in IGD case.
* We should return zero as an invalid address value while calling
igd_read_opregion().
Additionally, now its also not necessary to recompile seabios with some
extra steps like v1.
The following patches are ported partially from Xen Qemu-traditional
branch which are adding Intel IGD passthrough supporting to Qemu upstream.
To pass through IGD to guest, user need to add following lines in Xen config
file:
gfx_passthru=1
pci=['00:02.0 <at> 2']
Now successfully boot Ubuntu 14.04 guests with IGD assigned in Haswell
desktop with Latest Xen + Qemu upstream.
----------------------------------------------------------------
Tiejun Chen (2):
xen, gfx passthrough: create intel isa bridge
xen, gfx passthrough: create host bridge to passthrough
Yang Zhang (3):
xen, gfx passthrough: basic graphics passthrough support
xen, gfx passthrough: support Intel IGD passthrough with VT-D
xen, gfx passthrough: add opregion mapping
hw/pci-host/piix.c | 56 +++++++++++++-
hw/xen/Makefile.objs | 2 +-
hw/xen/xen-host-pci-device.c | 5 ++
hw/xen/xen-host-pci-device.h | 1 +
hw/xen/xen_pt.c | 10 +++
hw/xen/xen_pt.h | 12 ++-
hw/xen/xen_pt_config_init.c | 50 ++++++++++++-
hw/xen/xen_pt_graphics.c | 518
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
qemu-options.hx | 9 +++
vl.c | 11 ++-
10 files changed, 668 insertions(+), 6 deletions(-)
create mode 100644 hw/xen/xen_pt_graphics.c
Thanks
Tiejun
- [Qemu-devel] [v3][PATCH 0/8] xen: add Intel IGD passthrough support,
Tiejun Chen <=
- [Qemu-devel] [v3][PATCH 1/5] xen, gfx passthrough: basic graphics passthrough support, Tiejun Chen, 2014/05/26
- [Qemu-devel] [v3][PATCH 2/5] xen, gfx passthrough: create intel isa bridge, Tiejun Chen, 2014/05/26
- [Qemu-devel] [v3][PATCH 3/5] xen, gfx passthrough: support Intel IGD passthrough with VT-D, Tiejun Chen, 2014/05/26
- [Qemu-devel] [v3][PATCH 4/5] xen, gfx passthrough: create host bridge to passthrough, Tiejun Chen, 2014/05/26
- [Qemu-devel] [v3][PATCH 5/5] xen, gfx passthrough: add opregion mapping, Tiejun Chen, 2014/05/26
- Re: [Qemu-devel] [v3][PATCH 0/8] xen: add Intel IGD passthrough support, Chen, Tiejun, 2014/05/26