i.MX ProcessorsのトピックXen implementation on Imx8quadmax

Xen implementation on Imx8quadmax

Naresh123 — Wed, 04 Mar 2026 12:45:39 GMT

Technical Support Request: Xen Hypervisor / Dom0 Boot Issues

1. Hardware Environment:

Module: Apalis iMX8 QuadMax 4GB (V1.1)
Carrier Board: Ixora V1.3A
Serial Connection: Using UART_A (Serial Debug Console) via RS232-to-USB converter.

2. Software Environment (Validated via Bitbake):

BSP Version: 6.4.0-devel (Kirkstone)
Kernel Version: 5.15.129-6.4.0
Xen Version: 4.16

3. Issue Description:

Issue A (Serial Console): The serial output is consistently garbled/unreadable even when set to 115200 baud, 8-N-1. I have checked my baud rate settings and physical wiring.
Issue B (Xen/Dom0): The system is not booting into the Xen Hypervisor. Commands like xl info fail with "cannot init xl context," and uname -r shows the standard Linux kernel running on bare metal.

4. Observations:

The Xen binary (xen-apalis-imx8) is present in the deploy folder but does not appear to be loaded by U-Boot.
Standard Linux boots successfully, but virtualization features are inaccessible.

5. Request:

Please provide the correct U-Boot environment settings for the Ixora 1.3A board to properly load the Xen hypervisor binary before the Dom0 kernel.
Guidance on why the serial console output remains garbled despite using standard 115200 settings.

Re: Xen implementation on Imx8quadmax

Zhiming_Liu — Fri, 06 Mar 2026 01:10:25 GMT

Hi @Naresh123

Due to differences between Toradex's BSP and NXP's BSP, we are unable to provide precise assistance. Please seek help on the Toradex community.

Best Regards,
Zhiming

Re: Xen implementation on Imx8quadmax

Naresh123 — Fri, 06 Mar 2026 05:59:31 GMT

Hello @Zhiming_Liu

To clarify, I am using the official Toradex BSP 6.4.0 (Kirkstone), not the stock NXP release. This environment was built using the toradex minimal image layers. Since this is a standard Toradex software/hardware combination (Apalis iMX8 on Ixora), I am looking for the specific U-Boot command sequence required by this BSP version to boot Xen.

Re: Xen implementation on Imx8quadmax

Zhiming_Liu — Mon, 09 Mar 2026 02:58:34 GMT

Hi @Naresh123

If you are using Toradex BSP 6.4.0, we don't know the command you need on this BSP. It's not released from NXP.

Best Regards,
Zhiming

Re: Xen implementation on Imx8quadmax

Shivu_Guru_24 — Mon, 09 Mar 2026 10:15:13 GMT

hi @Naresh123 how you are enabling xen hypervisor ? can you share me the documnets

Re: Xen implementation on Imx8quadmax

Naresh123 — Mon, 09 Mar 2026 11:19:19 GMT

Hi @Shivu_Guru_24

I have added the xen in my yocto image and after the build , I have flash to my imx8 and for checking in serial port , with command xl info , it was showing no such directlory found.

Re: Xen implementation on Imx8quadmax

Shivu_Guru_24 — Mon, 09 Mar 2026 11:29:27 GMT

@Naresh123 I need to enable the xen support on latest Android kernel?

Can you please support how to enable documentation?

Re: Xen implementation on Imx8quadmax

Naresh123 — Mon, 09 Mar 2026 11:35:03 GMT

@Shivu_Guru_24

Did you build the yocto with added xen?

Are you able to see Dom0 and DomU?

Are you able to make partitions?

Re: Xen implementation on Imx8quadmax

Shivu_Guru_24 — Mon, 09 Mar 2026 11:41:32 GMT

@Naresh123 i have some questions

i need to run Android and Freertos as guest vm on top of hypervisor i am just exploring before starting

which yocto is having added xen

we need to enable xen manually, right?

I did not sync Yoto code if i sync latest Yocto how to enable xen?

after enabling it Linux acts as dom0 right?

we can run Android and freertos as guest (DOmU)