Why the initrd_flash can encrypt the disk without SBKPKC mode

Hi,
Would need your help to share steps so that we can replicate the issue and check with our teams. It is possible some cases are not tested and covered in our test cases so that you see the mismatch. We would need to replicate it on Xavier developer kit and check further. Please help share the steps so that we can set up and test on Xavier developer kit.

Hi
First thing we want to know if the disk encryption must need the SBKPKC be fused

Disk encryption does not need SDKPKC to be fused

Does it same to internal emmc and external nvme ?

1.We run the command :sudo ROOTFS_ENC=1 ./flash.sh -i ekb.key jetson-xavier mmcblk0p1 . with no SBKPKC mode
2022-05-17 16-55-02 的屏幕截图
. And it can be flashed successfully but cant boot.
the log shows:


here the minicom debug_log

[0000.667] I> oem authentication of eks header done
[0000.668] I> eks binary done read from storage
[0000.668] I> eks: Authentication init Done
[0000.669] I> eks: Authentication Finalize Done
[0000.673] I> EKB detected (length: 0x410) @ VA:0x52700400
��NOTICE:  BL31: v1.3(release):b5eeb33f7
NOTICE:  BL31: Built : 08:55:29, Feb 19 2022
ipc-unittest-main: 1519: Welcome to IPC unittest!!!
ipc-unittest-main: 1531: waiting forever
ipc-unittest-srv: 329: Init unittest services!!!
hwkey-agent: 41: hwkey-agent is running!!
hwkey-agent: 347: key_mgnt_processing .......
hwkey-agent: 162: ekb_verification: EKB_CMAC verification is not match.
hwkey-agent: 400: key_mgnt_processing: failed (-7)
hwkey-agent: 45: main: Failed to verify or extract EKB (-7).
exit called, thread 0xffffffffea8a4d58, name trusty_app_2_92b92883-f96a-4177
luks-srv: 40: luks-srv is running!!
platform_bootstrap_epilog: trusty bootstrap complete

0011.708] W> Failed to initialize device 10-5
[0011.712] E> NVME (5) boot failed, err: 0x80800612
[0011.717] I> ########## Fixed storage boot ##########
[0011.722] I> Loading kernel-bootctrl from partition
[0011.727] I> Loading partition kernel-bootctrl at 0xa4ae0000 from device(0x1)
[0011.740] W> tegrabl_get_kernel_bootctrl: magic number(0x00000000) is invalid
[0011.741] W> tegrabl_get_kernel_bootctrl: use default dummy boot control data
[0011.754] I> Already published: 00010003
[0011.754] I> Look for boot partition
[0011.755] I> Fallback: assuming 0th partition is boot partition
[0011.761] I> Detect filesystem
[0011.788] I> Loading extlinux.conf ...
[0011.788] I> Loading extlinux.conf binary from rootfs ...
[0011.788] I> rootfs path: /sdmmc_user/boot/extlinux/extlinux.conf
[0011.843] I> Loading extlinux.conf sig file from rootfs ...
[0011.844] I> rootfs path: /sdmmc_user/boot/extlinux/extlinux.conf.sig
[0011.887] I> Validate extlinux.conf ...
[0011.887] I> T19x: Authenticate extlinux.conf (bin_type: 54), max size 0x2000
[0011.887] I> Encryption fuse is not ON
[0011.888] I> L4T boot options
[0011.888] I> [1]: "primary kernel"
[0011.888] I> Enter choice: 
[0014.889] I> Continuing with default option: 1
[0014.889] I> Loading kernel ...
[0014.889] I> No kernel binary path
[0014.889] I> Continue to load from partition ...
[0014.890] W> No valid slot number is found in scratch register
[0014.890] W> Return default slot: _a
[0014.890] I> A/B: bin_type (37) slot 0
[0014.891] I> Loading kernel from partition
[0014.895] I> Loading partition kernel at 0xa4ae0000 from device(0x1)
[0015.384] I> Validate kernel ...
[0015.384] I> T19x: Authenticate kernel (bin_type: 37), max size 0x5000000
[0015.815] I> Encryption fuse is not ON
[0015.830] I> Checking boot.img header magic ... [0015.830] I> [OK]
[0015.831] I> Loading kernel-dtb ...
[0015.831] I> No kernel-dtb binary path
[0015.831] I> Continue to load from partition ...
[0015.831] W> No valid slot number is found in scratch register
[0015.832] W> Return default slot: _a
[0015.832] I> A/B: bin_type (38) slot 0
[0015.835] I> Loading kernel-dtb from partition
[0015.839] I> Loading partition kernel-dtb at 0x91000000 from device(0x1)
[0015.855] I> Validate kernel-dtb ...
[0015.855] I> T19x: Authenticate kernel-dtb (bin_type: 38), max size 0x400000
[0015.859] I> Encryption fuse is not ON
[0015.861] I> Kernel hdr @0xa4ae0000
[0015.863] I> Kernel dtb @0x90000000
[0015.866] I> decompressor handler not found
[0015.871] I> Copying kernel image (35917832 bytes) from 0xa4ae0800 to 0x80080000 ... [0015.884] I> Done
[0015.884] I> Move ramdisk (len: 11359540) from 0xa6d22000 to 0x92000000
[0015.889] I> Updated bpmp info to DTB
[0015.891] I> Ramdisk: Base: 0x92000000; Size: 0xad5534
[0015.895] I> Updated initrd info to DTB
[0015.898] W> WARN: Fail to override "console=none" in commandline
[0015.904] I> Active rootfs suffix: 
[0015.908] E> tegrabl_linuxboot_add_disp_param, du 1 failed to get display params
[0015.915] E> tegrabl_linuxboot_add_disp_param, du 1 failed to get display params
[0015.922] W> No valid slot number is found in scratch register
[0015.928] W> Return default slot: _a
[0015.931] I> Active slot suffix: 
[0015.934] I> add_boot_slot_suffix: slot_suffix = 
[0015.939] I> Linux Cmdline: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyTCU0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0  
[0015.990] I> Updated bootarg info to DTB
[0015.994] W> MAC addr invalid!
[0015.997] E> Failed to get WIFI MAC address
[0016.001] W> MAC addr invalid!
[0016.004] E> Failed to get Bluetooth MAC address
[0016.008] I> eeprom_get_mac_addr: MAC (type: 2): 48:b0:2d:4d:8c:15
[0016.015] W> "plugin-manager" doesn't exist, creating
[0016.019] I> Adding /chosen/plugin-manager/cvm
[0016.023] W> "chip-id" doesn't exist, creating
[0016.028] I> Adding /chosen/plugin-manager/chip-id
[0016.032] W> "configs" doesn't exist, creating
[0016.036] I> Adding /chosen/plugin-manager/configs
[0016.041] W> "ids" doesn't exist, creating
[0016.045] I> Adding /chosen/plugin-manager/ids
[0016.049] W> "odm-data" doesn't exist, creating
[0016.054] I> Adding /chosen/plugin-manager/odm-data
[0016.061] W> "memory" doesn't exist, creating
[0016.063] I> [0] START: 0x80000000, END: 0xac000000
[0016.067] I> [1] START: 0xac004000, END: 0xf0ad0000
[0016.072] I> [2] START: 0xf0adc000, END: 0xf0ae0000
[0016.077] I> dram_block larger than 80000000
[0016.081] I> [3] START: 0x100000000, END: 0x880000000
[0016.086] I> added [base:0x80000000, size:0x2c000000] to /memory
[0016.092] I> added [base:0xac200000, size:0x44800000] to /memory
[0016.098] I> added [base:0x100000000, size:0x780000000] to /memory
[0016.104] I> Updated memory info to DTB
[0016.108] E> add_disp_param: failed to get display params for du=1
[0016.114] W> "reset" doesn't exist, creating
[0016.118] I> Adding ecid(00000001640912062400000004fe8140) to DT
[0016.124] I> NVG: Logical CPU: 0; MPIDR: 0x80000000
[0016.128] I> NVG: Logical CPU: 1; MPIDR: 0x80000001
[0016.133] I> NVG: Logical CPU: 2; MPIDR: 0x80000100
[0016.137] I> NVG: Logical CPU: 3; MPIDR: 0x80000101
[0016.142] I> NVG: Logical CPU: 4; MPIDR: 0x80000200
[0016.147] I> NVG: Logical CPU: 5; MPIDR: 0x80000201
[0016.152] I> NVG: Logical CPU: 6; MPIDR: 0x80000300
[0016.156] I> NVG: Logical CPU: 7; MPIDR: 0x80000301
[0016.162] W> "misc-data" doesn't exist, creating
[0016.166] I> Boot-device: eMMC
[0016.168] I> Add boot-sdmmc to plugin-manager/misc-data
[0016.174] I> Add storage-sdmmc to plugin-manager/misc-data
[0016.179] W> Unknown storage device
[0016.183] I> Add serial number:1423321101929 as DT property
[0016.189] I> Plugin-manager override starting
[0016.192] W> Failed to find /plugin-manager in DT
[0016.197] I> tegrabl_load_kernel_and_dtb: Done
[0016.218] I> Kernel EP: 0x80080000, DTB: 0x90000000
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.9.253-tegra (root@sunxuehu-Latitude-5421) #2 SMP PREEMPT Wed Apr 27 17:49:52 CST 2022 tztek_version: [product: 
[    0.000000] Boot CPU: AArch64 Processor [4e0f0040]
[    0.000000] OF: fdt:memory scan node memory, reg size 48,
[    0.000000] OF: fdt: - 80000000 ,  2c000000
[    0.000000] OF: fdt: - ac200000 ,  44800000
[    0.000000] OF: fdt: - 100000000 ,  780000000
[    0.000000] earlycon: tegra_comb_uart0 at MMIO32 0x000000000c168000 (options '')
[    0.000000] bootconsole [tegra_comb_uart0] enabled
[    0.000000] Found tegra_fbmem: 00800000@a06ab000
[    0.000000] Found lut_mem: 00002008@a06a6000
[    0.855974] tegra194-pinctrl 2430000.pinmux: function 'shutdown' not supported
[    0.856011] tegra194-pinctrl 2430000.pinmux: invalid function shutdown in map table
[    0.856044] tegra194-pinctrl 2430000.pinmux: Failed to add default setting: -22
��WARNING: clk_get_rate: clk_power_ungate on gated domain 27 for gpcclk
WARNING: pll_d3 has no dyn ramp
��[    4.418416] max98090 7-0010: Failed to reset codec: -121
[    4.418952] max98090 7-0010: Failed to read device revision: -1
[    4.419087] max98090 7-0010: ASoC: failed to probe component -1
[    4.419262] tegra-asoc: sound: ASoC: failed to instantiate card -1
[    4.421936] tegra-asoc: sound: snd_soc_register_card failed (-1)
[    7.392751] ERROR: could not get clock /spi@c260000:osc(2)
[    7.393326] ERROR: could not get clock /spi@c260000:osc(2)
[    7.402860] mcp25xxfd spi1.0: Cannot initialize MCP2517. Wrong wiring?
[    7.403040] mcp25xxfd spi1.0: Probe failed, err=19
[   14.561105] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00
[   14.561105] 
[   14.561330] CPU: 3 PID: 1 Comm: bash Not tainted 4.9.253-tegra #2
[   14.561458] Hardware name: Jetson-AGX (DT)
[   14.561551] Call trace:
[   14.561621] [<ffffff800808ba40>] dump_backtrace+0x0/0x198
[   14.561736] [<ffffff800808c004>] show_stack+0x24/0x30
[   14.561848] [<ffffff800903e8b4>] dump_stack+0xa0/0xc4
[   14.561956] [<ffffff800903b958>] panic+0x12c/0x2a8
[   14.562060] [<ffffff80080b8bd0>] complete_and_exit+0x0/0x30
[   14.562178] [<ffffff80080b8c60>] do_group_exit+0x40/0xa8
[   14.562294] [<ffffff80080b8ce8>] __wake_up_parent+0x0/0x40
[   14.562406] [<ffffff8008083900>] el0_svc_naked+0x34/0x38
[   14.562526] SMP: stopping secondary CPUs
[   14.562620] Kernel Offset: disabled
[   14.562711] Memory Limit: none
[   14.562890] trusty-log panic notifier - trusty version Built: 08:57:16 Feb 19 2022 [   14.571815] Rebooting in 5 seconds..
����Shutdown state requested 1
Rebooting system ...

By the way the eks.img I used is generated by iv_key kek2_key user_key ekb.key. If I dont use the SBKPKC if the eks.img will effect the disk encryption?
I know I can use the initrd_flash encrypt nvme without SBKPKC,but I dont know if the initrd_flash internal is same as flash.sh. If they are same,it will be starge not need the SBKPKC.
Here I just refer the topic just fuse pkcit seems said that we need the sbkpkc

Hi,
Do you use AGX Xavier or Xavier NX? A bit confusing that it is jetson-xavier in the flash command but the category is Jetson Xavier NX.

And the issue you are facing is you cannot boot if you encrypt the rootfs and flash to a not-enable-PKCSBK device?

Hi
We try encrypt_disk without SBKPKC with NX and AGX .All show the error.
If possible can u show us the way encrypt the disk with no SBKPKC
Thank u very much

And we want know the difference between disk_encryption with SBKPKC and disk_encryption without SBKPKC

Hi,
Let’s focus on disk encryption on no PKCSBK Xavier developer kit, if you plan to use this setup.

Just now,we run the command sudo ROOTFS_ENC=1 ./flash.sh jetson-xavier mmcblk0p1,it can boot now.

It seems I cant use any key but where the encrypt_LUKS key from ?

From the log looks like the eks.img you provide is incorrectly generated.

��NOTICE: BL31: v1.3(release):b5eeb33f7
NOTICE: BL31: Built : 08:55:29, Feb 19 2022
ipc-unittest-main: 1519: Welcome to IPC unittest!!!
ipc-unittest-main: 1531: waiting forever
ipc-unittest-srv: 329: Init unittest services!!!
hwkey-agent: 41: hwkey-agent is running!!
hwkey-agent: 347: key_mgnt_processing …
hwkey-agent: 162: ekb_verification: EKB_CMAC verification is not match.
hwkey-agent: 400: key_mgnt_processing: failed (-7)
hwkey-agent: 45: main: Failed to verify or extract EKB (-7).
exit called, thread 0xffffffffea8a4d58, name trusty_app_2_92b92883-f96a-4177
luks-srv: 40: luks-srv is running!!
platform_bootstrap_epilog: trusty bootstrap complete

Thanks
Hi Ihoang
I replace the default eks.img and run the command “sudo ROOTFS_ENC=1 ./flash.sh jetson-xavier mmcblk0p1” it can boot and get the disk encryption.
Previously,I run the comomand “sudo ROOTFS_ENC=1 ./flash.sh -u rsa_priv.pem -v sbk.key -i ekb.key --user_key usr_flash.key jetson-xavier-nx-devkit-emmc mmcblk0p1” in a devkit with SBKPKC fused . And I found the generated passphrase_rootfs u once gave me cant unlock the encrypted disk.But if I just run the command “sudo ROOTFS_ENC=1 ./flash.sh jetson-xavier mmcblk0p1” with no SBKPKC mode ,the password can work.


As I refer the gen_luks_passphrase.py it means the devkit can use the ekb.key ,ECID,UUID to generate the pass .While the ekb.key was stored in eks.img but I cant generate the eks.img only with ekb.key. Will the kek2.key ,fv,user_key affect the passphrase?

Hi I read the disk_encryption_helper.func ,it seems generate the unique-pass,if we want use the generic-pass how modify the func.
And if it possible to prepare the tow keys for luks_keyslot as I kown the cryptset can set 8 key for one partition does it can do this?
BTW,as u last tell me the ECID can be get through the command :

sudo ./bootloader/tegrarcm_v2 --uid

but why I see the tegrarcm_v2 --help it shows --uid Prints UID of chip

thank u
2022-05-18 11-23-39 的屏幕截图

UID is the ECID.

Can you rewrite/rephrase your question without the typo? I cannot understand the request.

Hi
I want to know the difference of results between running “sudo ROOTFS_ENC=1 ./flash.sh jetson-xavier mmcblk0p1” and “sudo ROOTFS_ENC=1 ./flash.sh -u rsa_priv.pem -v sbk.key -i ekb.key --user_key usr_flash.key jetson-xavier-nx-devkit-emmc mmcblk0p1”
And when I run the command “cryptsetup luksDump /dev/nvme0n1p1” ,only one key_slot here .If we can add the generic-pass in it ?

Hi,
So in your use-case, you will enable PKCSBK on Xavier NX and do disk encryption, but it doesn’t work. Is this correct? Would like to know what the issue you are facing now.

The 1st case is for an unfused board with the zero key inside the EKB blob (the default case).

Currently the EKB stores two keys, one is the kernel encryption key, and another one is the LUKS key for disk encryption support.

The 2nd case, it’s for the fused board. The SBKPKC is for secure boot support, not relevant to the LUSK disk encryption support.

For LUKS disk encryption support with a specific key.

  1. Need to re-generate EKB blob with the key ( the 2nd key is for LUKS)
  1. During the flash process, use the command below to support the key

    sudo ROOTFS_ENC=1 ./flash.sh -i “sym2.key”

'(sym2.key == ekb.key)
Then the LUKS support modules will use the key to generate the per-device unique passphrase.

Thank you so much
Now l know every key was used for what.
Last ,if Nvidia doc has the way to encrypt some specific files ,please give me the link .
Thanks

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