RE: How to enable Guest Linux VM on Raspberry PI3?

Thanks Adam & Jakub for your promptly support.

1>  I will experiment L4Linux on my Raspberry PI3 to get guest Linux VM up.
2>  Yes, after I sycned to lastest <kernkonzept> code base and was able to make Linux VM upworking on the QEMU virtual ARM platform.   Was using the source code from https://svn.l4re.org/repos/oc/l4re/.   Seems they are not exactly the same.

Have a great weekend!

Lei 
________________________________________
From: l4-hackers [[email protected]] on behalf of Adam Lackorzynski [[email protected]]
Sent: Friday, June 07, 2019 3:54 PM
To: [email protected]
Subject: Re: How to enable Guest Linux VM on Raspberry PI3?

On Fri Jun 07, 2019 at 18:27:18 +0000, Lei Zhou wrote:
> After I brought up L4Re and Fiasco on Raspberry PI3,  would like to enable guest Linux VM on top of it.
>
> I'm looking at the link https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_kernkonzept_manifest_wiki_LinuxVM&d=DwICAg&c=yzoHOc_ZK-sxl-kfGNSEvlJYanssXN3q-lhj0sp26wE&r=zgPsMwBitHoKyTzLULGKGmtjlsV9d0M7_KqUo-WYeMg&m=VXUaQ18nPG5EFxWsPyMuOEWiVIUJi6NK5XgzyKn7IqM&s=2xhsd-rfRCHenVuPfjY7zmNW0FLbQ0Da6Io2gb_UuD4&e= and hoping I can do the same thing on Raspberry PI3.
>
> The link seems using hardware-assisted virtualization option uvmm based for guest VM.     There seems also L4Linux Paravirtualization option.    Which option should I use for me to enable guest LInux  VM on Raspberry PI3?

You can only use L4Linux as the Raspberries do not support
hardware-assisted virtualization (because they have the wrong interrupt
controller).


Adam

> In addition,  when I followed the link to try on QEMU first,   encounter some "vbus" capability issue.   I followed the guidance exactly as the link says.   However,   when I started the command to spawning the Linux VM as:
>          $make E=uvmm-basic qemu
>
> It failed with following log:
>
> ============================================
> MOE: virtual user address space [0-7fffffffff]
> MOE: rom name space cap -> [C:103000]
> MOE: rwfs name space cap -> [C:105000]
>   BOOTFS: [41100000-411974b8] [C:107000] uvmm
>   BOOTFS: [41198000-411c4e58] [C:109000] l4re
>   BOOTFS: [411c5000-41246770] [C:10b000] ned
>   BOOTFS: [41247000-412475c4] [C:10d000] virt-arm_virt.dtb
>   BOOTFS: [41248000-41430200] [C:10f000] ramdisk-armv8.cpio.gz
>   BOOTFS: [41431000-41431242] [C:111000] uvmm-basic.ned
>   BOOTFS: [41432000-42618a00] [C:113000] Image.gz
> MOE: cmdline: moe rom/uvmm-basic.ned
> MOE: Starting: rom/ned rom/uvmm-basic.ned
> MOE: loading 'rom/ned'
> Ned says: Hi World!
> Ned: loading file: 'rom/uvmm-basic.ned'
> VMM[vmbus]: 'vbus' capability not found. Hardware access not possible for VM.
> VMM[main]: Hello out there.
> VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus
> VMM[vm]: Device creation for virtual device virtio_uart@20000 failed. Disabling device.
> VMM[]: [email protected],virtiocap: capability net is invalid.
> VMM[vm]: Device creation for virtual device virtio_net@10000 failed. Disabling device.
> VMM: FATAL: ERROR: ARM GIC virtualization does not work without passing the virtual GICC via the vbus
> VMM[vm]: Device creation for virtual device interrupt-controller failed. Disabling device.
> VMM: FATAL: Parsing timer interrupt: Argument out of range
> qemu-system-aarch64: terminating on signal 2
> Makefile:6: recipe for target 'do-all-make-goals' failed
> make: *** [do-all-make-goals] Interrupt
> =========================================================================
>
> Any feedbacks are greatly appreciated!
> Lei Zhou
>
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