IGVT-g: Difference between revisions

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Intel GVT-g is a full GPU virtualization solution with mediated pass-through which allows host and multiple guests to share same Intel integrated videocard. Guest gets a near-native graphics peformance.

Win7-32 / Win7-64 / Win8.1-64 /Win10-RS1-64 are validated~~. Install recent Intel driver into the guest~~.

Win7-32 / Win7-64 / Win8.1-64 /Win10-RS1-64 are validated.

== Hardware Requirements ==

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== Configure KVM ==

Support for local display is present in Qemu 2.12~~. Only BIOS (SeaBIOS) machine is supported, UEFI (OVMF) is not supported~~.

Support for local display is present in Qemu 2.12.

=== Bare Qemu ===

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Finally use sudo virt-viewer --attach win10

== ~~Issues with libvirtd~~ ==

== FAQ ==

* No video output

~~Change main adapter type from QXL to say Cirrus~~

Possible solutions

* Still no video output

(libvirtd) Change main adapter type from QXL to say Cirrus

~~Ensure that mdev's hostdev device~~ is ~~the first or bump device.hostdev0 index~~

use BIOS (SeaBIOS) machine, UEFI (OVMF) is not supported

* "Element domain has extra content: qemu:commandline" error after editing via virsh

ensure that the recent Intel graphics driver is installed in the guest

~~You forgot to add <nowiki>xmlns~~:qemu~~='http~~:~~//libvirt.org/schemas/domain/qemu/1.0'</nowiki>~~

* (libvirtd) "Element domain has extra content: qemu:commandline" error after editing via virsh

* no drm render node available

you forgot to add <nowiki>xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'</nowiki>

in virt-manager change ~~spice~~ display render node from auto to available one

* (libvirtd) "no drm render node available" error in virt-manager

in virt-manager change SPICE display render node from auto to available one

* "write_loop: No space left on device" error when creating mdev device

check dmesg output for gvt related error, most likely there is not enough VRAM

== Used sources ==

* [https://www.kraxel.org/blog/2018/04/vgpu-display-support-finally-merged-upstream/ <em>vgpu display support</em> on a contributor (kraxel)'s blog] - this guide misses info that Windows ~~guests do require~~ x-igd-opregion=on parameter and also that QXL ~~goes~~ into conflict

* [https://www.kraxel.org/blog/2018/04/vgpu-display-support-finally-merged-upstream/ <em>vgpu display support</em> on a contributor (kraxel)'s blog] - this guide misses info that Windows guest requires x-igd-opregion=on parameter and also that QXL may go into conflict

* https://github.com/intel/gvt-linux/wiki/GVTg_Setup_Guide - obsoleted guide, but some parts are useful

* https://github.com/intel/gvt-linux/wiki/Dma_Buf_User_Guide - obsoleted guide, but some parts are useful

@@ Line 1: / Line 1: @@
 Intel GVT-g is a full GPU virtualization solution with mediated pass-through which allows host and multiple guests to share same Intel integrated videocard. Guest gets a near-native graphics peformance.
-Win7-32 / Win7-64 / Win8.1-64 /Win10-RS1-64 are validated. Install recent Intel driver into the guest.
+Win7-32 / Win7-64 / Win8.1-64 /Win10-RS1-64 are validated.
 == Hardware Requirements ==
@@ Line 57: / Line 57: @@
 == Configure KVM ==
-Support for local display is present in Qemu 2.12. Only BIOS (SeaBIOS) machine is supported, UEFI (OVMF) is not supported.
+Support for local display is present in Qemu 2.12.
 === Bare Qemu ===
@@ Line 97: / Line 97: @@
 Finally use sudo virt-viewer --attach win10
-== Issues with libvirtd ==
+== FAQ ==
 * No video output
-Change main adapter type from QXL to say Cirrus
+Possible solutions
-* Still no video output
+(libvirtd) Change main adapter type from QXL to say Cirrus
-Ensure that mdev's hostdev device is the first or bump device.hostdev0 index
+use BIOS (SeaBIOS) machine, UEFI (OVMF) is not supported
-* "Element domain has extra content: qemu:commandline" error after editing via virsh
+ensure that the recent Intel graphics driver is installed in the guest
-You forgot to add <nowiki>xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'</nowiki>
+* (libvirtd) "Element domain has extra content: qemu:commandline" error after editing via virsh
-* no drm render node available
+you forgot to add <nowiki>xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'</nowiki>
-in virt-manager change spice display render node from auto to available one
+* (libvirtd) "no drm render node available" error in virt-manager
+in virt-manager change SPICE display render node from auto to available one
+* "write_loop: No space left on device" error when creating mdev device
+check dmesg output for gvt related error, most likely there is not enough VRAM
 == Used sources ==
-* [https://www.kraxel.org/blog/2018/04/vgpu-display-support-finally-merged-upstream/ <em>vgpu display support</em> on a contributor (kraxel)'s blog] - this guide misses info that Windows guests do require x-igd-opregion=on parameter and also that QXL goes into conflict
+* [https://www.kraxel.org/blog/2018/04/vgpu-display-support-finally-merged-upstream/ <em>vgpu display support</em> on a contributor (kraxel)'s blog] - this guide misses info that Windows guest requires x-igd-opregion=on parameter and also that QXL may go into conflict
 * https://github.com/intel/gvt-linux/wiki/GVTg_Setup_Guide - obsoleted guide, but some parts are useful
 * https://github.com/intel/gvt-linux/wiki/Dma_Buf_User_Guide - obsoleted guide, but some parts are useful