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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [Intel-gfx] [Announcement] 2015-Q4 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 (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 >>>>>> _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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