Other thing i forgot was that on Ultrascale+ the RAM finishes at 2GB
(0x80000000), so i moved the memory region to 0x60000000, with a different
size to not overlap any other memory region.
/* RAM */ {
.phys_start = 0x60000000,
.virt_start = 0x60000000,
.size = 0x1bef0000, //must be page size aligned
.flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_LOADABLE |
JAILHOUSE_MEM_DMA,
},
But now it gives me the error on ramdisk_address:
Traceback (most recent call last):
File "/usr/local/libexec/jailhouse/jailhouse-cell-linux", line 831, in
<module>
cell.load(args.initrd.read(), arch.ramdisk_address())
File "/usr/local/lib/python2.7/dist-packages/pyjailhouse/cell.py", line
44, in load
fcntl.ioctl(self.dev, self.JAILHOUSE_CELL_LOAD, load)
IOError: [Errno 22] Invalid argument
terça-feira, 30 de Julho de 2019 às 18:00:59 UTC+1, Jan Kiszka escreveu:
>
> On 30.07.19 17:54, João Reis wrote:
> > Ok, so i realized i was declaring, on non root cell, a memory region
> that
> > belonged to non-reserved memory from root cell(3fd00000-5fffffff :
> System RAM).
> > I've changed the memory region to reserved memory (address 0x90000000),
> because
> > on u-boot the memory reservation argument is mem=1536M, which equals to
> top
> > address 0x5fffffff.
> >
> > /* RAM */ {
> > .phys_start = 0x90000000,
> > .virt_start = 0x90000000,
> > .size = 0x20000000,
> > .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
> > JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_LOADABLE |
> > JAILHOUSE_MEM_DMA,
> > },
>
> Do you also still have a small region at guest virtual address 0, to put
> the
> loader there?
>
> >
> > After issuing "jailhouse cell linux ultra96-linux-demo2.cell Image -d
> > inmate-zynqmp.dtb -i rootfs.cpio -c "console=ttyS0, 115200" -k 4"
> >
> > The following error appears:
> >
> > [ 82.987144] Created Jailhouse cell "non-root"
> > Cell "non-root" can be loaded
> >
> > Traceback (most recent call last):
> > File "/usr/local/libexec/jailhouse/jailhouse-cell-linux", line 826, in
> <module>
> > cell.load(open(linux_loader, mode='rb').read(),
> arch.loader_address())
> > File "/usr/local/lib/python2.7/dist-packages/pyjailhouse/cell.py",
> line 44, in
> > load
> > fcntl.ioctl(self.dev, self.JAILHOUSE_CELL_LOAD, load)
> > IOError: [Errno 22] Invalid argument
>
> Does the hypervisor report that "Cell "XXX" can be loaded"? Then the error
> is
> reported by the driver module, load_image(). And I would bet on a missing
> region
> at address 0.
>
> Jan
>
> --
> Siemens AG, Corporate Technology, CT RDA IOT SES-DE
> Corporate Competence Center Embedded Linux
>
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