On 19.01.21 09:48, Peng Fan wrote: > All, > >> Subject: RE: [PATCH 00/10] ARM64: boot jailhouse before root cell Linux > > > I wanna restart this topic and hope we could move forward > to land this feature in Jailhouse mainline. > > The initial thread: > https://groups.google.com/g/jailhouse-dev/c/IZEFz-e2lh4 > > Angelo also post a Linux-less RFC mail: > https://groups.google.com/g/jailhouse-dev/c/gctNUieKd8Q/m/ekSKqBa2BQAJ > > I propose a IRC[1] discuss in Germany UTC + 1 (10:00am); China UTC + > 8(17:00pm) > in Jan/22. If you need the other timeslot, please raise, then I try > to find one that make all happy.
I'm already blocked (up to 11:30 local time) on the 22nd. If we are looking for a morning slot in European time: 25th before 11am or 26th before 1pm. Jan > > [1] https://webchat.freenode.net/#jailhouse > > Thanks, > Peng. > >> >>> Subject: Re: [PATCH 00/10] ARM64: boot jailhouse before root cell >>> linux >>> >>> On 07.08.20 05:06, [email protected] wrote: >>>> From: Peng Fan <[email protected]> >>>> >>>> This patchset is to support boot jailhouse before Linux. >>>> The previous RFC patchset: >>>> https://gr >>>> ou >>>> >>> >> ps.google.com%2Fg%2Fjailhouse-dev%2Fc%2FIZEFz-e2lh4%2Fm%2FBBmGI_s >>> pIQAJ >>>> >>> >> &data=02%7C01%7Cpeng.fan%40nxp.com%7Cfd19d34344a04a8e00690 >>> 8d83dca6 >>>> >>> >> d2b%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637327286910 >>> 022610&am >>>> >>> >> p;sdata=LWalmGgc5itX1A9VYPlJHE8zRst1XiL2lSilgI2z%2F4U%3D&reserv >>> ed= >>>> 0 >>>> >>>> Patch 1~6 is to create an new folder libbaremetal to hold files that >>>> could shared between inmates and new bootloader. >>>> >>>> Patch 9 is the central part to boot jailhouse with a baremetal >>>> bootloader, which only support ARM64 + GIC_V3 now. It will use psci >>>> to power up secondary cores, do GIC_V3 dist initialization, Then >>>> kick inmate cell. >>>> >>>> Images/cells loading is done by U-Boot bootm command to boot a fit >> image. >>>> >>>> Patch 10 is to support using jailhouse userspace tool even boot >>>> jailhouse before linux, just do as "insmod jailhouse.ko >>>> early_loader=1", then it will bypass fw loading and etc, but setup >>> information for linux usage. >>>> >>> >>> I'm missing the big picture description here: >>> - how is the memory structure that the boot loader needs to set up? >> >> Nothing special, just put the cells/inmates to the fit file, as 8mm.its. >> >>> - how is the handover between loader and root linux? >> >> Nothing special, the boot args are reserved when U-Boot kick the loader, the >> loader will pass the args to Linux after jailhouse initialization done. >> >>> - how are things configured? >>> >>> From a first glance at the code, it seems a lot of things are still >>> hard-coded, likely imx8-specific. That may mean we need to work on the >>> user story further. >> >> I use bootloader/include/config.h to define some addresses. Since I using Fit >> image, do you think it is good to parse fit image to get out the info? >> This will need porting code from U-Boot or write from scratch. >> >>> >>> Also, a qemu-arm64 target would be good. >> >> Per my understanding, qemu-arm64 to run jailhouse not have U-Boot. >> I need to let U-Boot boot Linux, then could add the feature. >> >> Regards, >> Peng. >> >>> >>> Jan >>> >>> -- >>> Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate >>> Competence Center Embedded Linux >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Jailhouse" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups >> .google.com%2Fd%2Fmsgid%2Fjailhouse-dev%2FAM5PR0402MB275606FED0 >> 1836E49F644C2E88450%2540AM5PR0402MB2756.eurprd04.prod.outlook.co >> m&data=02%7C01%7Cpeng.fan%40nxp.com%7Caa5cbde61bf944b03f45 >> 08d83dcbd646%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637 >> 327292966107007&sdata=C7kgZJYMLzHTCwhP6cCjub7x0K0raYBc%2F3I >> bwqI%2BRZw%3D&reserved=0. -- Siemens AG, T RDA IOT Corporate Competence Center Embedded Linux -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jailhouse-dev/3125cc07-ff98-2427-2c9c-56c94588f97c%40siemens.com.
