Hi,
On 09/01/2024 13:33, wheatfox wrote:
Here is my current linux inmate cell configuration for my OK8MP
board(imx8mp CPU, 2G RAM + 16G eMMC version), I didn't change the
imx8mp.c for now.
I don't understand what you're trying to tell.
I edited the RAM region as:
/* RAM */ {
/*
* We could not use 0x80000000 which conflicts with
* COMM_REGION_BASE
And I don't understand this comment.
*/
.phys_start = 0x60000000,
.virt_start = 0x60000000,
For non-root cells, host physical and guest physical memory doesn't
necessarily have to be identity mapped.
Ralf
.size = 0x10000000,
.flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
JAILHOUSE_MEM_EXECUTE | JAILHOUSE_MEM_DMA |
JAILHOUSE_MEM_LOADABLE,
},
On Tuesday, January 9, 2024 at 8:19:59 PM UTC+8 wheatfox wrote:
Thanks for your instruction! I tried to edit the linux inmate cell
configuration file (imx8mp-linux-demo.c) and I finally get the linux
inmate to boot, so I think it was mainly a memory region
misconfiguration problem. (However, the boot progress failed due to
VFS fatal error, which I will investigate later...)
The current full output log is attached as attachment.
On Monday, January 8, 2024 at 7:12:46 PM UTC+8 Ralf Ramsauer wrote:
Hi,
On 08/01/2024 09:26, wheatfox wrote:
> I'm using OK8MP board with i.MX8MP CPU. I have already
started jailhouse
> with imx8mp.cell configuration, and the example gic-demo
works fine.
> However, when I try to start a linux inmate using
> imx8mp-linux-demo.cell, the jailhouse's load progress seems
stuck.
>
> After adding some debug print in jailhouse's python script,
firmware
> code and kernel module code, I found out that the
*copy_from_user* call
> in *load_image* function (driver/cell.c) doesn't return and
halt forever: >
> jailhouse commands:
> ./tools/jailhouse enable ./imx8mp.cell
> ./tools/jailhouse cell linux \
> ./imx8mp-linux-demo.cell \
> ./kernel/Image \
> -i ./kernel/ramdisk.img \
For testing, try to not load the ramdisk. The kernel should at
least
boot and crash. If that works, we know that there's something
odd with
the ramdisk.
Second, double and triple check addresses where things get loaded.
What's in your non-root cell configuration, and where does the
linux-loader try to load stuff? Does that match?
Thanks,
Ralf
> -d ./kernel/imx8mp-evk-inmate-wheatfox.dtb \
> -c "clk_ignore_unused console=ttymxc1,0x30890000,115200
> earlycon=ec_imx6q,0x30890000,115200"
>
> start linux cell output(with the string 'wheatfox' means it's
my custom
> debug print):
> root@OK8MP:/mnt# ./start-linux.sh
> [wheatfox|python] Jailhouse Linux Cell Boot Helper
> [wheatfox|python] linux_loader=/m[ 129.965933] [wheatfox]
> (jailhouse_ioctl) ioctl=0x5401 arg=281474720244744
> nt/tools/../inmates/tools/arm64/l[ 129.975611] [wheatfox]
> (jailhouse_ioctl) ioctl=0x5401 arg=281474720244728
> inux-loader.bin
> [ 129.988033] [wheatfox] (jailhouse_ioctl) ioctl=0x40100002
> arg=281474720244800
> [ 129.995192] [wheatfox] (jailhouse_ioctl)
JAILHOUSE_CELL_CREATE
> [ 130.001072] [wheatfox] (jailhouse_cmd_cell_create) start
> [ 130.006404] [wheatfox] (jailhouse_cmd_cell_create)
copy_from_user done
> [ 130.012960] [wheatfox] (jailhouse_cmd_cell_create)
copy_from_user done
> [ 130.019507] [wheatfox] (jailhouse_cmd_cell_create)
cell_id.id <http://cell_id.id> = -1
> [ 130.095151] IRQ 6: no longer affine to CPU2
> [ 130.095333] CPU2: shutdown
> [ 130.102251] psci: CPU2 killed (polled 0 ms)
> [ 130.155283] CPU3: shutdown
> [ 130.157999] psci: CPU3 killed (polled 0 ms)
> [wheatfox] in hypercall, code = 1, arg1 = 2955416576, arg2 = 2
> [wheatfox] in hypercall, JAILHOUSE_HC_CELL_CREATE
> Adding virtual PCI device 00:00.0 to cell "linux-inmate-demo"
> Shared memory connection established, peer cells:
> "imx8mp"
> Adding virtual PCI device 00:01.0 to cell "linux-inmate-demo"
> Shared memory connection established, peer cells:
> "imx8mp"
> [wheatfox] in resume_cpu, cpu_id = 2
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [wheatfox] in resume_cpu, cpu_id = 3
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> Created cell "linux-inmate-demo"
> Page pool usage after cell creation: mem 82/992, remap
144/131072
> [wheatfox] in resume_cpu, cpu_id = 0
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [ 130.231800] [wheatfox] (jailhouse_cmd_cell_create) Created
cell
> "linux-inmate-demo"
> [wheatfox|python] cell created,
>
name=b'linux-inmate-demo\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
> [wheatf[ 130.249264] [wheatfox] (jailhouse_ioctl)
ioctl=0x40300003
> arg=281474720245360
> ox|python] trying to load linux_l[ 130.257905] [wheatfox]
> (jailhouse_ioctl) JAILHOUSE_CELL_LOAD
> oader.bin into cell, addr=0x0
> [ 130.266684] [wheatfox] (jailhouse_cmd_cell_load) start
> [ 130.274322] [wheatfox] (jailhouse_cmd_cell_load)
> cell_management_prologue(&cell_load.cell_id, &cell) done
> [wheatfox] in hypercall, code = 3, arg1 = 1, arg2 =
4308871775073466112
> [wheatfox] in hypercall, JAILHOUSE_HC_CELL_SET_LOADABLE
> [wheatfox] in cell_set_loadable, id = 1
> [wheatfox] cell_management_prologue finished
> [wheatfox] in resume_cpu, cpu_id = 2
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [wheatfox] in resume_cpu, cpu_id = 3
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [wheatfox] finished arch_park_cpu
> [wheatfox] cell->loadable = 0
> [wheatfox] not jumped to out_resume
> Cell "linux-inmate-demo" can be loaded
> [wheatfox] in out_resume
> [wheatfox] in resume_cpu, cpu_id = 1
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [ 130.342417] [wheatfox] (jailhouse_cmd_cell_load)
> jailhouse_call_arg1(JAILHOUSE_HC_CELL_SET_LOADABLE, cell->id)
done
> [ 130.353079] [wheatfox] (jailhouse_cmd_cell_load)
> cell_load.num_preload_images = 1
> [ 130.360584] [wheatfox] (jailhouse_cmd_cell_load)
load_image(cell,
> image) start, n = 1
> [ 130.368444] [wheatfox] (load_image) start
> [ 130.372468] [wheatfox] (load_image) copy_from_user done
> [ 130.377712] [wheatfox] (load_image) image.size = 34b0
> [ 130.382776] [wheatfox] (load_image) found suitable memory
region,
> mem->virt_start = 0, mem->size = 10000
> [ 130.392280] [wheatfox] (load_image) image load mem region
found
> [ 130.398228] [wheatfox] (load_image) phys_start = fdb00000
> [ 130.403653] [wheatfox] (load_image) page_offs = 0
> [ 130.408373] [wheatfox] (load_image) image_mem =
0000000079dd6ce3
> [ 130.414405] [wheatfox] (load_image) copy_from_user params:
> [ 130.419905] [wheatfox] (load_image) to = 0000000079dd6ce3
> [ 130.425329] [wheatfox] (load_image) from = 00000000c239ec71
> [ 130.430915] [wheatfox] (load_image) n = 34b0
> [ 130.435220] [wheatfox] (load_image) copy_from_user start
> [ 130.440563] [wheatfox] (load_image) copy_from_user done
> [ 130.445822] [wheatfox] (load_image) flush_icache_range done
> [ 130.451429] [wheatfox] (jailhouse_cmd_cell_load)
load_image(cell,
> image) done, n = 1
> [ 130.459186] [wheatfox] (jailhouse_cmd_cell_load)
unlock_out done,
> exiting jailhouse_cmd_cell_load
> [wheatfox|python] linux_loader.bin loaded
> [wheatfox|python] trying to load kernel into cell,
addr=0xc0280000
> [ 130.500262] [wheatfox] (jailhouse_ioctl) ioctl=0x40300003
> arg=281474720245360
> [ 130.507454] [wheatfox] (jailhouse_ioctl) JAILHOUSE_CELL_LOAD
> [ 130.513165] [wheatfox] (jailhouse_cmd_cell_load) start
> [ 130.518321] [wheatfox] (jailhouse_cmd_cell_load)
> cell_management_prologue(&cell_load.cell_id, &cell) done
> [wheatfox] in hypercall, code = 3, arg1 = 1, arg2 =
4308871775073466112
> [wheatfox] in hypercall, JAILHOUSE_HC_CELL_SET_LOADABLE
> [wheatfox] in cell_set_loadable, id = 1
> [wheatfox] cell_management_prologue finished
> [wheatfox] in resume_cpu, cpu_id = 2
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [wheatfox] in resume_cpu, cpu_id = 3
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [wheatfox] finished arch_park_cpu
> [wheatfox] cell->loadable = 1
> [wheatfox] in out_resume
> [wheatfox] in resume_cpu, cpu_id = 1
> [wheatfox] in resume_cpu, target_data->cpu_suspended = 1
> [ 130.579626] [wheatfox] (jailhouse_cmd_cell_load)
> jailhouse_call_arg1(JAILHOUSE_HC_CELL_SET_LOADABLE, cell->id)
done
> [ 130.590182] [wheatfox] (jailhouse_cmd_cell_load)
> cell_load.num_preload_images = 1
> [ 130.597678] [wheatfox] (jailhouse_cmd_cell_load)
load_image(cell,
> image) start, n = 1
> [ 130.605532] [wheatfox] (load_image) start
> [ 130.609557] [wheatfox] (load_image) copy_from_user done
> [ 130.614795] [wheatfox] (load_image) image.size = 1ab7200
> [ 130.620131] [wheatfox] (load_image) found suitable memory
region,
> mem->virt_start = c0000000, mem->size = 3d700000
> [ 130.630505] [wheatfox] (load_image) image load mem region
found
> [ 130.636699] [wheatfox] (load_image) phys_start = c0280000
> [ 130.642128] [wheatfox] (load_image) page_offs = 0
> [ 130.646853] [wheatfox] (load_image) image_mem =
000000007135b443
> [ 130.652883] [wheatfox] (load_image) copy_from_user params:
> [ 130.658387] [wheatfox] (load_image) to = 000000007135b443
> [ 130.663808] [wheatfox] (load_image) from = 00000000ebdde5d4
> [ 130.669399] [wheatfox] (load_image) n = 1ab7200
> [ 130.673952] [wheatfox] (load_image) copy_from_user start
>
> then nothing happens after this 'copy_from_user start`, the
source code is:
> printk("[wheatfox] (load_image) copy_from_user start\n");
> if (copy_from_user(image_mem + page_offs,
> (void __user *)(unsigned long)image.source_address,
> image.size))
> err = -EFAULT;
> printk("[wheatfox] (load_image) copy_from_user done\n");
>
>
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