I stand corrected, the freeze happens when i do not set
JAILHOUSE_CELL_PASSIVE_COMMREG in the inmate
Il giorno martedì 9 gennaio 2024 alle 17:26:57 UTC+1 Michele Pescapè ha
scritto:
> Hi, thank you for replying.
>
> ttyS0 is indeed whitelisted in the inmate and the number of pio_regions is
> set accordingly.
>
> As for the crash after disable/shutdown, I think it was related to the PCI
> device, after commenting that and the corresponding regions out I no longer
> get that freeze. CONFIG_JAILHOUSE_GUEST and
> CONFIG_JAILHOUSE_DBCON were already set in the kernel configuration I'm
> using for the non root linux; still, I recompiled it just in case.
>
> Michele
>
> Il giorno martedì 9 gennaio 2024 alle 14:14:33 UTC+1 Ralf Ramsauer ha
> scritto:
>
> Hi,
>
> On 08/01/2024 23:56, Michele Pescapè wrote:
> > Hi all,
> >
> > I have an AMD Ryzen 2600 on a b450 motherboard. My goal is to run two
> > non root linux cells, however, as of right now, I'm not able to start
> > any non root linux cells.
> > First of all I don't receive an output from the cell (I do get output
> > from the apic-demo though), therefore I don't really know if they're
> > even crashing or not; this is the output I get from the hypervisor after
> > enabling the root cell and issuing the following command:
> >
> > sudo jailhouse cell linux configs/x86/linux_guest1.cell
> > ../buildroot-2023.11/output/images/bzImage -i
> > ../buildroot-2023.11/output/images/rootfs.cpio
>
> for the first few tries, simply don't load a ramdisk. Try to get the
> kernel booting. It will crash with "cannot mount rootfs". If we get so
> far, then you can continue specifying the ramdisk. But first, we have to
> get that far.
>
> >
> > Adding PCI device ff:1f.7 to cell "linux-x86-demo"
> > Created cell "linux-x86-demo"
> > Page pool usage after cell creation: mem 336/32211, remap 16392/131072
> > Cell "linux-x86-demo" can be loaded
> > CPU 4 received SIPI, vector 100
> > CPU 3 received SIPI, vector 100
> > Started cell "linux-x86-demo"
> >
> > After this the cell appears to be running in cell list, however I can't
> > seem to get any output to confirm that (I even set
> > JAILHOUSE_CELL_VIRTUAL_CONSOLE_ACTIVE, but nothing appears on the vrtual
> > console accessed via "jailhouse console -f"). I also tried adding -c
> > "console=ttyS0,115200".
>
> ttyS0, i.e., x86 Port 0x3f8 is whitelisted in the cell configuration?
> Actually, your cmdline is correct.
>
> > At this point if I try to disable/shutdown the cell, the system freezes
> > requiring a hard reset.
>
> Okay, is the guest Linux compiled with Jailhouse guest support? Please
> ensure that non-root Linux is compiled with CONFIG_JAILHOUSE_GUEST and
> CONFIG_JAILHOUSE_DBCON. The first one is mandatory for x86 Linux guests.
>
> >
> > Also, there seems to be a mismatch between the PCI bdf value in the log
> > above and the one in the cell's configuration. In both root and non root
> > cells i set .bdf = (0x0f << 3) for the IVSHMEM net device and the Root
> > cell correctly reports that ("Adding virtual PCI device 00:0f.0 to cell
> > "RootCell"").
>
> First things first. Let's try to get Linux kicked off before diving into
> PCI. Comment it out for the moment, let's do that later.
>
> Ralf
>
> >
> > If I understood correctly, once the cell works properly I won't need to
> > set the console anymore as I can assign an ip (-c "ip x.x.x.x" in the
> > cell linux command) and ssh to the cell, right?
> >
> > I attach the root and non root cells' configurations in case they're
> > needed. I can provide both the root and non root cell's kernel .conf and
> > the buildroot configuration I used if needed.
> >
> > Thank you for your time,
> > Michele
> >
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