Re: [Xen-devel] [Notes for xen summit 2018 design session] Graphic virtualization

[Lars Kurth <lars.kurth@xxxxxxxxxx>]

On 02/08/2018, 16:27, "Artem Mygaiev" <artem_mygaiev@xxxxxxxx> wrote:

    Hello Julien
    
    On 02.08.18 12:56, Julien Grall wrote:
    > Hi,
    > 
    > Sorry for the late posting. The notes were taken by Stefano Stabellini. 
    > Thank you.
    > 
    > This has some clarifications requested from EPAM regarding PowerVR.
    > 
    > The existing graphics solutions on Xen today are:
    >     - PV DRM:
    >          * Supports multiple displays per VM
    >          * Based on Grant-tables.
    >          * Improvement of Xen FB which is based on foreign mapping
    > 
    Frontend driver will be part of LK starting 4.18
    
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/xen?h=v4.18-rc7
    
    >     - Intel GVT: https://01.org/igvt-g
    >          * Based on IOREQ server infrastructure
    >          * Performance is 70% of direct assigned hardware
    > 
    >     - NVIDIA:
    >          * Much more virtualizable
    >          * Provide mappable chunk of PCI BARs.
    >          * Userspace component emulates PCI config space
    > 
    > Current effort for graphic virtualization on Arm:
    >     - Samsung: They have a PV OpenGL solution. This seems to be fast.
    
    This is interesting. Do you know if there is any open benchmark data?

The presentation and recording is at
https://www.slideshare.net/xen_com_mgr/design-and-implementation-of-automotive-xpdds18-virtualization-based-on-xen-sungmin-lee-samsung-electronics
https://www.youtube.com/watch?v=mBD8o9X32fA&index=14&list=PLYyw7IQjL-zFlQYbY9BgsLhxqp1Ui67W7
  
Lars


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