Re: ARMv8-A Xen runs on FVP/fastmodels

[Bertrand Marquis <Bertrand.Marquis@xxxxxxx>]

Hi Yinhua,


> On 29 Mar 2021, at 02:53, yinhua_chen@xxxxxxxxxxx wrote:
> 
> Hi all,
> 
> I am interested in Xen-on-ARM, and I want to test and modify Xen on ARM 
> platform. For debug purpose, I prefer using simulators.
> 
> I do not want to use QEMU because some other softwares I am using does not 
> support running on QEMU.
> 
> However, I cannot find any Xen-on-FVP blogs or documents published in recent 
> three years, and I met many problems when trying to run Xen on FVP/fast 
> models according to the old blogs/documents.
> 
> If there is anyone who can help me, I appreciate for your help.
> 
> ====================The following is the effort I 
> made=========================================
> 
> There are two blogs/documents I refer to:
> 
> 1. (2015)How to boot Xen on FVP(fast) model using UEFI. 
> https://wiki-archive.linaro.org/LEG/Engineering/Xen_boot_on_FVP_UEFI
> 
> I follow this blog, and reset UEFI-tools, linaro-edk2 to 2015 version, use 
> Linaro-GCC4.8. Error comes out when running the script "tool-build-v8-fvp.sh".
> 
> And I cannot use 2015-version-ATF, since I need the new features of 
> 2019-version-ATF.
> 
> If anyone needs to see the error message, I will reproduce the error message. 
> I need to spend some time to reproduce the error.
> 
> 2. (2020 Oct 13)Xen ARM with Virtualization Extension. 
> https://wiki.xenproject.org/wiki/Xen_ARM_with_Virtualization_Extensions#Building_Xen_on_ARM
> 
> I follow "Building Xen on ARM" instructions:
> 
> 2-1. I clone Xen from https://xenbits.xen.org/git-http/xen.git
> 2-2. I compile Xen by (with Linaro-GCC7.5)
> make dist-xen XEN_TARGET_ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-
> 2-3. About the toolstack, I follow this wiki Xen_on_ARM_and_Yocto.
>         The Xen-image-on-QEMU part seems works fine. However, I cannot find 
> anything about "FVP/fastmodels" in the conf/local.conf file
>         I try to build Xen-image-on-FVP by referencing the 
> Xen-image-on-raspberrypi part in this wiki.
>         However, I cannot find any "FVP/fastmodels" branch in yocto 
> repository.
> 
> ========================================================================================
> 
> If there is anyone who can help me build Xen on FVP/fastmodels, I appreciate 
> for your help.

I would suggest to look into Yocto meta-arm-autonomy layer:
https://git.yoctoproject.org/cgit/cgit.cgi/meta-arm/tree/

There you have several readme in documentation explaining how you can build 
such a system using Yocto.

Regards
Bertrand

> 
> Sincerely,
> Yinhua