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Re: [Xen-devel] [Intel-gfx] [Announcement] 2016-Q1 release of XenGT - a Mediated Graphics Passthrough Solution from Intel



Hi all,

We are pleased to announce another update of Intel GVT-g for Xen.

Intel GVT-g is a full GPU virtualization solution with mediated pass-through, 
starting from 4th generation Intel Core(TM) processors with Intel Graphics 
processors. A virtual GPU instance is maintained for each VM, with part of 
performance critical resources directly assigned. The capability of running 
native graphics driver inside a VM, without hypervisor intervention in 
performance critical paths, achieves a good balance among performance, feature, 
and sharing capability. Xen is currently supported on Intel Processor Graphics 
(a.k.a. XenGT).


Repositories
-------------------------

Kernel: https://github.com/01org/igvtg-kernel (2016q1-4.3.0 branch)
Xen: https://github.com/01org/igvtg-xen (2016q1-4.6 branch)
Qemu: https://github.com/01org/igvtg-qemu (2016q1-2.3.0 branch)

This update consists of:
-    Windows 10 guest is preliminarily supported in this release. 
-    Implemented vgtbuffer(Indirect display) feature on SKL platform.
-    Backward compatibility support 5th generation (Broadwell)
-    Increased VGT stability on SKL platform
-    Kernel updated from drm-intel 4.2.0 to drm-intel 4.3.0
-    Xen updated from Xen 4.5.0 to Xen 4.6.0
-    Qemu updated from 1.6 to 2.3

Known issues:
-    At least 2GB memory is suggested for VM(win7-32/64, win8.1 64) to run most 
3D workloads.
-    Windows 7 GFX driver upgrading only works on Safe mode.
-    Some media decode can't work well (will be resolved in the next version 
Windows GFX driver). 
-    Windows8 and later Windows fast boot is not supported, whose workaround is 
to disable power S3/S4 in HVM file by adding "acpi_s3=0, acpi_s4=0"
-    Sometimes when dom0 and guest have heavy workload, i915 in dom0 will 
trigger a false graphics reset. The workaround is to disable dom0 hangcheck in 
dom0 grub file by adding "i915.enable_hangcheck=0"

Next update will be around early July, 2016.

GVT-g project portal:
        https://01.org/igvt-g

Please subscribe the mailing list:
        https://lists.01.org/mailman/listinfo/igvt-g


More information about background, architecture and others about Intel GVT-g, 
can be found at:

    https://01.org/igvt-g
    https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
    
http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
    
http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-REWRITE%203RD%20v4.pdf
    https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt


Note: The XenGT project should be considered a work in progress. As such it is 
not a complete product nor should it be considered one. Extra care should be 
taken when testing and configuring a system to use the XenGT project.


--
Thanks,
Jike

On 01/27/2016 02:21 PM, Jike Song wrote:
> Hi all,
> 
> We are pleased to announce another update of Intel GVT-g for Xen.
> 
> Intel GVT-g is a full GPU virtualization solution with mediated pass-through, 
> starting from 4th generation Intel Core(TM) processors with Intel Graphics 
> processors. A virtual GPU instance is maintained for each VM, with part of 
> performance critical resources directly assigned. The capability of running 
> native graphics driver inside a VM, without hypervisor intervention in 
> performance critical paths, achieves a good balance among performance, 
> feature, and sharing capability. Xen is currently supported on Intel 
> Processor Graphics (a.k.a. XenGT).
> 
> Repositories
> -------------------------
> 
> Kernel: https://github.com/01org/igvtg-kernel (2015q4-4.2.0 branch)
> Xen: https://github.com/01org/igvtg-xen (2015q4-4.5 branch)
> Qemu: https://github.com/01org/igvtg-qemu (xengt_public2015q4 branch)
> 
> This update consists of:
> 
>       - 6th generation Intel Core Processor (code name: Skylake) is 
> preliminarily supported in this release. Users could start run multiple 
> Windows / Linux virtual machines simultaneously, and switch display among 
> them.
>       - Backward compatibility support 4th generation Intel Core Processor 
> (code name: Haswell) and 5th generation Intel Core Processor (code name: 
> Broadwell).
>       - Kernel update from drm-intel 3.18.0 to drm-intel 4.2.0.
> 
> Known issues:
>    - At least 2GB memory is suggested for a VM to run most 3D workloads.
>    - Keymap might be incorrect in guest. Config file may need to explicitly 
> specify "keymap='en-us'". Although it looks like the default value, earlier 
> we saw the problem of wrong keymap code if it is not explicitly set.
>    - Cannot move mouse pointer smoothly in guest by default launched by VNC 
> mode. Configuration file need to explicitly specify "usb=1" to enable a USB 
> bus, and "usbdevice='tablet'" to add pointer device using absolute 
> coordinates.
>    - Running heavy 3D workloads in multiple guests for couple of hours may 
> cause stability issue.
>    - There are still stability issues on Skylake
> 
> 
> Next update will be around early April, 2016.
> 
> GVT-g project portal: https://01.org/igvt-g
> Please subscribe mailing list: https://lists.01.org/mailman/listinfo/igvt-g
> 
> 
> More information about background, architecture and others about Intel GVT-g, 
> can be found at:
> 
>     https://01.org/igvt-g
>     
> https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
>     
> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
>     
> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-REWRITE%203RD%20v4.pdf
>     https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt
> 
> 
> Note: The XenGT project should be considered a work in progress. As such it 
> is not a complete product nor should it be considered one. Extra care should 
> be taken when testing and configuring a system to use the XenGT project.
> 
> 
> --
> Thanks,
> Jike
> 
> On 10/27/2015 05:25 PM, Jike Song wrote:
>> Hi all,
>>
>> We are pleased to announce another update of Intel GVT-g for Xen.
>>
>> Intel GVT-g is a full GPU virtualization solution with mediated 
>> pass-through, starting from 4th generation Intel Core(TM) processors with 
>> Intel Graphics processors. A virtual GPU instance is maintained for each VM, 
>> with part of performance critical resources directly assigned. The 
>> capability of running native graphics driver inside a VM, without hypervisor 
>> intervention in performance critical paths, achieves a good balance among 
>> performance, feature, and sharing capability. Xen is currently supported on 
>> Intel Processor Graphics (a.k.a. XenGT); and the core logic can be easily 
>> ported to other hypervisors.
>>
>>
>> Repositories
>>
>>      Kernel: https://github.com/01org/igvtg-kernel (2015q3-3.18.0 branch)
>>      Xen: https://github.com/01org/igvtg-xen (2015q3-4.5 branch)
>>      Qemu: https://github.com/01org/igvtg-qemu (xengt_public2015q3 branch)
>>
>>
>> This update consists of:
>>
>>      - XenGT is now merged with KVMGT in unified repositories(kernel and 
>> qemu), but currently
>>        different branches for qemu.  XenGT and KVMGT share same iGVT-g core 
>> logic.
>>      - fix sysfs/debugfs access seldom crash issue
>>      - fix a BUG in XenGT I/O emulation logic
>>      - improve 3d workload stability
>>
>> Next update will be around early Jan, 2016.
>>
>>
>> Known issues:
>>
>>      - At least 2GB memory is suggested for VM to run most 3D workloads.
>>      - Keymap might be incorrect in guest. Config file may need to 
>> explicitly specify "keymap='en-us'". Although it looks like the default 
>> value, earlier we saw the problem of wrong keymap code if it is not 
>> explicitly set.
>>      - When using three monitors, doing hotplug between Guest pause/unpause 
>> may not be able to lightup all monitors automatically. Some specific monitor 
>> issues.
>>      - Cannot move mouse pointer smoothly in guest by default launched by 
>> VNC mode. Configuration file need to explicitly specify "usb=1" to enable a 
>> USB bus, and "usbdevice='tablet'" to add pointer device using absolute 
>> coordinates.
>>      - Resume dom0 from S3 may cause some error message.
>>      - i915 unload/reload cannot works well with less than 3 vcpu when 
>> upowerd service was running
>>      - Unigen Tropics running in multiple guests will cause dom0 and guests 
>> tdr.
>>
>>
>> Please subscribe the mailing list to report BUGs, discuss, and/or contribute:
>>
>>      https://lists.01.org/mailman/listinfo/igvt-g
>>
>>
>> More information about Intel GVT-g background, architecture, etc can be 
>> found at(may not be up-to-date):
>>
>>      https://01.org/igvt-g
>>      
>> https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
>>      
>> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
>>      
>> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-REWRITE%203RD%20v4.pdf
>>      https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt
>>
>>
>> Note:
>>
>>     The XenGT project should be considered a work in progress. As such it is 
>> not a complete product nor should it be considered one. Extra care should be 
>> taken when testing and configuring a system to use the XenGT project.
>>
>>
>> --
>> Thanks,
>> Jike
>>
>> On 07/07/2015 10:49 AM, Jike Song wrote:
>>> Hi all,
>>>
>>> We're pleased to announce a public update to Intel Graphics Virtualization 
>>> Technology(Intel GVT-g, formerly known as XenGT).
>>>
>>> Intel GVT-g is a full GPU virtualization solution with mediated 
>>> pass-through, starting from 4th generation Intel Core(TM) processors with 
>>> Intel Graphics processors. A virtual GPU instance is maintained for each 
>>> VM, with part of performance critical resources directly assigned. The 
>>> capability of running native graphics driver inside a VM, without 
>>> hypervisor intervention in performance critical paths, achieves a good 
>>> balance among performance, feature, and sharing capability. Xen is 
>>> currently supported on Intel Processor Graphics (a.k.a. XenGT); and the 
>>> core logic can be easily ported to other hypervisors, for example, the 
>>> experimental code has been released to support GVT-g running on a KVM 
>>> hypervisor (a.k.a KVMGT).
>>>
>>> Tip of repositories
>>> -------------------------
>>>
>>>       Kernel: 5b73653d5ca, Branch: master-2015Q2-3.18.0
>>>       Qemu: 2a75bbff62c1, Branch: master
>>>       Xen: 38c36f0f511b1, Branch: master-2015Q2-4.5
>>>
>>> This update consists of:
>>>       - Change time based scheduler timer to be configurable to enhance 
>>> stability
>>>       - Fix stability issues that VM/Dom0 got tdr when hang up at some 
>>> specific instruction on BDW
>>>       - Optimize the emulation of el_status register to enhance stability
>>>       - 2D/3D performance in linux VMs has been improved about 50% on BDW
>>>       - Fix abnormal idle power consumption issue due to wrong forcewake 
>>> policy
>>>       - Fix tdr issue when running 2D/3D/Media workloads in Windows VMs 
>>> simultaneously
>>>       - KVM support is still in a separate branch as prototype work. We 
>>> plan to integrate KVM/Xen support together in the future releases
>>>       - Next update will be around early Oct, 2015
>>>
>>> Notice that this release can support both Intel 4th generation Core 
>>> CPU(code name: Haswell) and Intel 5th generation Core CPU (code name: 
>>> Broadwell), while the limitation of the latter include:
>>>       * 3D conformance may have some failure
>>>       * Under high demand 3D workloads, stability issues are detected
>>>       * Multi-monitor scenario is not fully tested, while single monitor of 
>>> VGA/HDMI/DP/eDP should just work
>>>       * Hotplug DP may cause black screen even on native environment
>>>
>>> Where to get
>>>
>>> kernel: https://github.com/01org/XenGT-Preview-kernel.git
>>> xen: https://github.com/01org/XenGT-Preview-xen.git
>>> qemu: https://github.com/01org/XenGT-Preview-qemu.git
>>>
>>>
>>> We have a mailing list for GVT-g development, bug report and technical 
>>> discussion:
>>>
>>>       https://lists.01.org/mailman/listinfo/igvt-g
>>>
>>> More information about Intel GVT-g background, architecture, etc can be 
>>> found at:
>>>
>>>       
>>> https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
>>>       
>>> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
>>>       https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt
>>>
>>>
>>> Note: The XenGT project should be considered a work in progress. As such it 
>>> is not a complete product nor should it be considered one. Extra care 
>>> should be taken when testing and configuring a system to use the XenGT 
>>> project.
>>>
>>>
>>> --
>>> Thanks,
>>> Jike
>>>
>>> On 04/10/2015 09:23 PM, Jike Song wrote:
>>>> Hi all,
>>>>
>>>> We're pleased to announce a public update to Intel Graphics Virtualization 
>>>> Technology (Intel GVT-g, formerly known as XenGT). Intel GVT-g is a 
>>>> complete vGPU solution with mediated pass-through, supported today on 4th 
>>>> generation Intel Core(TM) processors with Intel Graphics processors. A 
>>>> virtual GPU instance is maintained for each VM, with part of performance 
>>>> critical resources directly assigned. The capability of running native 
>>>> graphics driver inside a VM, without hypervisor intervention in 
>>>> performance critical paths, achieves a good balance among performance, 
>>>> feature, and sharing capability. Though we only support Xen on Intel 
>>>> Processor Graphics so far, the core logic can be easily ported to other 
>>>> hypervisors.
>>>>
>>>> Tip of repositories
>>>> -------------------------
>>>>
>>>>             Kernel: a011c9f953e, Branch: master-2015Q1-3.18.0
>>>>             Qemu: 2a75bbff62c1, Branch: master
>>>>             Xen: 38c36f0f511b1, Branch: master-2015Q1-4.5
>>>>
>>>> Summary this update
>>>> -------------------------
>>>>    - Preliminary Broadwell support.
>>>>    - kernel update from drm-intel 3.17.0 to drm-intel 3.18.0(tag: 
>>>> drm-intel-next-fixes-2014-12-17, notice that i915 driver code is much 
>>>> newer than kernel stable version).
>>>>    - Next update will be around early July, 2015.
>>>>    - KVM support is still in a separate branch as prototype work. We plan 
>>>> to integrate KVM/Xen support together in future releases.
>>>>
>>>> This update consists of:
>>>>    - gvt-g core logic code was moved into i915 driver directory.
>>>>    - Host mediation is used for dom0 i915 driver access, instead of 
>>>> de-privileged dom0.
>>>>    - The Xen-specific code was separated from vgt core logic into a new 
>>>> file "driver/xen/xengt.c".
>>>>    - Broadwell is preliminarily supported in this release. Users could 
>>>> start multiple linux/windows 64-bit virtual machines simultaneously, and 
>>>> perform display switch among them.
>>>>
>>>> Notice that it is still preliminary release for BDW, which is not yet in 
>>>> the same level of HSW release. Differences include:
>>>>                    * Power/performance tuning on BDW is not yet done.
>>>>     * Stability needs to be improved.
>>>>                    * No 32-bit guest OS support.
>>>>                    * Multi-monitor scenario is not fully tested, while 
>>>> single monitor of VGA/HDMI/DP/eDP should just work.
>>>>
>>>>
>>>> Where to get:
>>>> -----------------
>>>>                    kerenl: 
>>>> https://github.com/01org/XenGT-Preview-kernel.git
>>>>                    Xen: https://github.com/01org/XenGT-Preview-xen.git
>>>>                    Qemu: https://github.com/01org/XenGT-Preview-qemu.git
>>>>
>>>> Please refer to the new setup guide, which provides step-to-step details 
>>>> about building/configuring/running Intel GVT-g:
>>>>     
>>>> https://github.com/01org/XenGT-Preview-kernel/blob/master-2015Q1-3.18.0/XenGT_Setup_Guide_2015Q1.pdf
>>>>
>>>> More information about Intel GVT-g background, architecture, etc can be 
>>>> found at:
>>>>                    
>>>> https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
>>>>                    
>>>> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
>>>>                    
>>>> https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt
>>>>
>>>> The previous update can be found here:
>>>>                   
>>>> http://lists.xen.org/archives/html/xen-devel/2014-12/msg00474.html
>>>>
>>>>
>>>> Note
>>>> ---------------
>>>>    The XenGT project should be considered a work in progress, As such it 
>>>> is not a complete product nor should it be considered one., Extra care 
>>>> should be taken when testing and configuring a system to use the XenGT 
>>>> project.
>>>>
>>>>
>>>> --
>>>> Thanks,
>>>> Jike
>>>>
>>>> On 01/09/2015 04:51 PM, Jike Song wrote:
>>>>> Hi all,
>>>>>
>>>>>       We're pleased to announce a public update to Intel Graphics 
>>>>> Virtualization Technology (Intel GVT-g, formerly known as XenGT). Intel 
>>>>> GVT-g is a complete vGPU solution with mediated pass-through, supported 
>>>>> today on 4th generation Intel Core(TM) processors with Intel Graphics 
>>>>> processors. A virtual GPU instance is maintained for each VM, with part 
>>>>> of performance critical resources directly assigned. The capability of 
>>>>> running native graphics driver inside a VM, without hypervisor 
>>>>> intervention in performance critical paths, achieves a good balance among 
>>>>> performance, feature, and sharing capability. Though we only support Xen 
>>>>> on Intel Processor Graphics so far, the core logic can be easily ported 
>>>>> to other hypervisors.   The XenGT project should be considered a work in 
>>>>> progress, As such it is not a complete product nor should it be 
>>>>> considered one., Extra care should be taken when testing and configuring 
>>>>> a system to use the XenGT project.
>>>>>
>>>>> The news of this update:
>>>>>
>>>>>   - kernel update from 3.14.1 to drm-intel 3.17.0.
>>>>>   - We plan to integrate Intel GVT-g as a feature in i915 driver. That 
>>>>> effort is still under review, not included in this update yet.
>>>>>   - Next update will be around early Apr, 2015.
>>>>>
>>>>> This update consists of:
>>>>>
>>>>>   - Including some bug fixes and stability enhancement.
>>>>>   - Making XenGT device model to be aware of Broadwell. In this version 
>>>>> BDW is not yet functioning.
>>>>>   - Available Fence registers number is changed to 32 from 16 to align 
>>>>> with HSW hardware.
>>>>>   - New cascade interrupt framework for supporting interrupt 
>>>>> virtualization on both Haswell and Broadwell.
>>>>>   - Add back the gem_vgtbuffer. The previous release did not build that 
>>>>> module for 3.14 kernel. In this release, the module is back and rebased 
>>>>> to 3.17.
>>>>>   - Enable the irq based context switch in vgt driver, which will help 
>>>>> reduce the cpu utilization while doing context switch, it is enabled by 
>>>>> default, and can be turn off by kernel flag irq_based_ctx_switch.
>>>>>
>>>>>
>>>>> Please refer to the new setup guide, which provides step-to-step details 
>>>>> about building/configuring/running Intel GVT-g:
>>>>>
>>>>>   
>>>>> https://github.com/01org/XenGT-Preview-kernel/blob/master/XenGT_Setup_Guide.pdf
>>>>>
>>>>> The new source codes are available at the updated github repos:
>>>>>
>>>>>   Linux: https://github.com/01org/XenGT-Preview-kernel.git
>>>>>   Xen: https://github.com/01org/XenGT-Preview-xen.git
>>>>>   Qemu: https://github.com/01org/XenGT-Preview-qemu.git
>>>>>
>>>>>
>>>>> More information about Intel GVT-g background, architecture, etc can be 
>>>>> found at:
>>>>>
>>>>>
>>>>>   
>>>>> https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
>>>>>   
>>>>> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
>>>>>   https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt
>>>>>
>>>>>
>>>>>
>>>>> The previous update can be found here:
>>>>>
>>>>>
>>>>>   http://lists.xen.org/archives/html/xen-devel/2014-12/msg00474.html
>>>>>
>>>>>
>>>>>
>>>>> Appreciate your comments!
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Thanks,
>>>>> Jike
>>>>>
>>>>>
>>>>> On 12/04/2014 10:45 AM, Jike Song wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> We're pleased to announce a public release to Intel Graphics 
>>>>>> Virtualization Technology (Intel GVT-g, formerly known as XenGT). Intel 
>>>>>> GVT-g is a complete vGPU solution with mediated pass-through, supported 
>>>>>> today on 4th generation Intel Core(TM) processors with Intel Graphics 
>>>>>> processors. A virtual GPU instance is maintained for each VM, with part 
>>>>>> of performance critical resources directly assigned. The capability of 
>>>>>> running native graphics driver inside a VM, without hypervisor 
>>>>>> intervention in performance critical paths, achieves a good balance 
>>>>>> among performance, feature, and sharing capability. Though we only 
>>>>>> support Xen on Intel Processor Graphics so far, the core logic can be 
>>>>>> easily ported to other hypervisors.
>>>>>>
>>>>>>
>>>>>> The news of this update:
>>>>>>
>>>>>>
>>>>>>  - kernel update from 3.11.6 to 3.14.1
>>>>>>
>>>>>>  - We plan to integrate Intel GVT-g as a feature in i915 driver. That 
>>>>>> effort is still under review, not included in this update yet
>>>>>>
>>>>>>  - Next update will be around early Jan, 2015
>>>>>>
>>>>>>
>>>>>> This update consists of:
>>>>>>
>>>>>>  - Windows HVM support with driver version 15.33.3910
>>>>>>
>>>>>>  - Stability fixes, e.g. stabilize GPU, the GPU hang occurrence rate 
>>>>>> becomes rare now
>>>>>>
>>>>>>  - Hardware Media Acceleration for Decoding/Encoding/Transcoding, VC1, 
>>>>>> H264 etc. format supporting
>>>>>>
>>>>>>  - Display enhancements, e.g. DP type is supported for virtual PORT
>>>>>>
>>>>>>  - Display port capability virtualization: with this feature, dom0 
>>>>>> manager could freely assign virtual DDI ports to VM, not necessary to 
>>>>>> check whether the corresponding physical DDI ports are available
>>>>>>
>>>>>>
>>>>>>
>>>>>> Please refer to the new setup guide, which provides step-to-step details 
>>>>>> about building/configuring/running Intel GVT-g:
>>>>>>
>>>>>>
>>>>>>  
>>>>>> https://github.com/01org/XenGT-Preview-kernel/blob/master/XenGT_Setup_Guide.pdf
>>>>>>
>>>>>>
>>>>>>
>>>>>> The new source codes are available at the updated github repos:
>>>>>>
>>>>>>
>>>>>>  Linux: https://github.com/01org/XenGT-Preview-kernel.git
>>>>>>
>>>>>>  Xen: https://github.com/01org/XenGT-Preview-xen.git
>>>>>>
>>>>>>  Qemu: https://github.com/01org/XenGT-Preview-qemu.git
>>>>>>
>>>>>>
>>>>>> More information about Intel GVT-g background, architecture, etc can be 
>>>>>> found at:
>>>>>>
>>>>>>
>>>>>>  
>>>>>> https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
>>>>>>
>>>>>>  
>>>>>> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
>>>>>>
>>>>>>  https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt
>>>>>>
>>>>>>
>>>>>> The previous update can be found here:
>>>>>>
>>>>>>
>>>>>>  http://lists.xen.org/archives/html/xen-devel/2014-07/msg03248.html
>>>>>>
>>>>>>
>>>>>> Appreciate your comments!
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Thanks,
>>>>>> Jike
>>>>>>
>>>>>> On 07/25/2014 04:31 PM, Jike Song wrote:
>>>>>>> Hi all,
>>>>>>>
>>>>>>> We're pleased to announce an update to Intel Graphics Virtualization 
>>>>>>> Technology (Intel GVT-g, formerly known as XenGT). Intel GVT-g is a 
>>>>>>> complete vGPU solution with mediated pass-through, supported today on 
>>>>>>> 4th generation Intel Core(TM) processors with Intel Graphics 
>>>>>>> processors. A virtual GPU instance is maintained for each VM, with part 
>>>>>>> of performance critical resources directly assigned. The capability of 
>>>>>>> running native graphics driver inside a VM, without hypervisor 
>>>>>>> intervention in performance critical paths, achieves a good balance 
>>>>>>> among performance, feature, and sharing capability. Though we only 
>>>>>>> support Xen on Intel Processor Graphics so far, the core logic can be 
>>>>>>> easily ported to other hypervisors.
>>>>>>>
>>>>>>> The news of this update:
>>>>>>>
>>>>>>>         - Project code name is "XenGT", now official name is Intel 
>>>>>>> Graphics Virtualization Technology (Intel GVT-g)
>>>>>>>         - Currently Intel GVT-g supports Intel Processor Graphics built 
>>>>>>> into 4th generation Intel Core processors - Haswell platform
>>>>>>>         - Moving forward, XenGT will change to quarterly release 
>>>>>>> cadence. Next update will be around early October, 2014.
>>>>>>>
>>>>>>> This update consists of:
>>>>>>>
>>>>>>>         - Stability fixes, e.g. stable DP support
>>>>>>>         - Display enhancements, e.g. virtual monitor support. Users can 
>>>>>>> define a virtual monitor type with customized EDID for virtual 
>>>>>>> machines, not necessarily the same as physical monitors.
>>>>>>>         - Improved support for GPU recovery
>>>>>>>         - Experimental Windows HVM support. To download the 
>>>>>>> experimental version, see setup guide for details
>>>>>>>         - Experimental Hardware Media Acceleration for decoding.
>>>>>>>
>>>>>>>
>>>>>>> Please refer to the new setup guide, which provides step-to-step 
>>>>>>> details about building/configuring/running Intel GVT-g:
>>>>>>>
>>>>>>>         
>>>>>>> https://github.com/01org/XenGT-Preview-kernel/blob/master/XenGT_Setup_Guide.pdf
>>>>>>>
>>>>>>>
>>>>>>> The new source codes are available at the updated github repos:
>>>>>>>
>>>>>>>         Linux: https://github.com/01org/XenGT-Preview-kernel.git
>>>>>>>         Xen: https://github.com/01org/XenGT-Preview-xen.git
>>>>>>>         Qemu: https://github.com/01org/XenGT-Preview-qemu.git
>>>>>>>
>>>>>>>
>>>>>>> More information about Intel GVT-g background, architecture, etc can be 
>>>>>>> found at:
>>>>>>>
>>>>>>>         
>>>>>>> https://www.usenix.org/conference/atc14/technical-sessions/presentation/tian
>>>>>>>         
>>>>>>> http://events.linuxfoundation.org/sites/events/files/slides/XenGT-Xen%20Summit-v7_0.pdf
>>>>>>>         
>>>>>>> https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization-xengt
>>>>>>>
>>>>>>> The previous update can be found here:
>>>>>>>
>>>>>>>         
>>>>>>> http://lists.xen.org/archives/html/xen-devel/2014-02/msg01848.html
>>>>>>>
>>>>>>> Appreciate your comments!
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Thanks,
>>>>>>> Jike
>>>>>>>

_______________________________________________
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