imx8qxp display passthru

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imx8qxp display passthru

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minskey_guo
Contributor II

Hi, 

    imx8qxp has two LDBs and only one GPU.  Is it possible to allocate the GPU and one LDB to a VM (via drm/dri  driver),  and the other LDB to the second VM (via framebuffer driver ??).  so that both of the virtual machines have display output ?

thanks,

-minskey

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Minskey

seems this is possible using resource partitioning through SCU and XRDC infrastructure.

For example almost every module description of i.MX8QXP Reference Manual has reference:

"Each of the peripherals, and local peripheral clock controls, and each
of the DMA channels can be uniquely assigned to different resource domains, security
domains, and virtual machines (VMs).
NOTE
The XRDC2 itself is only accessed by the System Controller via the DSC."

May be useful to look at presentation for resource partitioning on i.MX 8 Family

i.MX 8 Product Overview 

Best regards
igor
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