Hi Simon,
In the normal u-boot, they used extlinux to specify the ramdisk. I was using
bootm to load the ramdisk.
This is the normal boot up terminal logs.
"MMC: no card present
switch to partitions #0, OK
mmc0(part 0) is current device
Scanning mmc 0:1...
Found /boot/extlinux/extlinux.conf
Retrieving file: /boot/extlinux/extlinux.conf
727 bytes read in 105 ms (5.9 KiB/s)
L4T boot options
1: primary kernel
Enter choice: 1: primary kernel
Retrieving file: /boot/initrd
5565090 bytes read in 213 ms (24.9 MiB/s)
Retrieving file: /boot/Image
34179080 bytes read in 857 ms (38 MiB/s)
append: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyS0,115200n8
console=tty0 fbcon=map:0 net.ifnames=0 video=tegrafb no_console_suspend=1
earlycon=uart8250,mmio32,0x3100000 nvdumper_reserved=0x2772e0000 gpt
usbcore.old_scheme_first=1 tegraid=18.1.2.0.0 maxcpus=6 boot.slot_suffix=
boot.ratchetvalues=0.2031647.1 bl_prof_dataptr=0x10000@0x275840000
sdhci_tegra.en_boot_part_access=1
## Flattened Device Tree blob at 80000000
Booting using the fdt blob at 0x80000000
reserving fdt memory region: addr=80000000 size=10000
Using Device Tree in place at 0000000080000000, end 0000000080058f8e
Starting kernel ..."
My sequence with vboot was to set the bootargs first,then the initrd_high and
fdt_high and then load to e-mmc and then call bootm. In the u-boot env, the
following values were there. I am attaching the output of printenv here, if
that could give some clues on what I am doing differently.
kernel_addr_r=80280000
kernel_addr_r_aliases=loadaddr
loadaddr=80280000
ramdisk_addr_r=82a00000
"U-Boot 2016.07-dirty (Oct 16 2019 - 16:12:24 -0700)
TEGRA186
Model: NVIDIA P2771-0000-500
DRAM: 7.8 GiB
MC: Tegra SD/MMC: 0, Tegra SD/MMC: 1
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: eth0: ethernet@2490000
Hit any key to stop autoboot: 0
Tegra186 (P2771-0000-500) # setenv bootargs root=/dev/mmcblk0p1 rw rootwait
rootfstype=ext4 console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0
video=tegrafb no_console_suspend=1 earlycon=uart8250,mmio32,0x3100000
nvdumper_reserved=0x2772e0000 gpt usbcore.old_scheme_first=1 tegraid=18.1.2.0.0
maxcpus=6 boot.slot_suffix= boot.ratchetvalues=0.2031647.1
bl_prof_dataptr=0x10000@0x275840000 sdhci_tegra.en_boot_part_access=1
Tegra186 (P2771-0000-500) # setenv initrd_high 8effffff
Tegra186 (P2771-0000-500) # setenv fdt_high 8effffff
Tegra186 (P2771-0000-500) # ext2load mmc 0 0x90000000 /boot/tegra.fit
40090346 bytes read in 1051 ms (36.4 MiB/s)
Tegra186 (P2771-0000-500) # bootm 0x90000000
## Loading kernel from FIT Image at 90000000 ...
Using 'conf@1' configuration
Verifying Hash Integrity ... sha256,rsa4096:tx2_key+ OK
Trying 'kernel@1' kernel subimage
Description: Linux kernel
Type: Kernel Image
Compression: uncompressed
Data Start: 0x900000c8
Data Size: 34179080 Bytes = 32.6 MiB
Architecture: AArch64
OS: Linux
Load Address: 0x80280000
Entry Point: 0x80280000
Hash algo: sha256
Hash value:
417be59a15deda06283bdfdc2ef08911c27c0fbb3e4581fdf1f94f8ca7ee6193
Verifying Hash Integrity ... sha256+ OK
## Loading ramdisk from FIT Image at 90000000 ...
Using 'conf@1' configuration
Trying 'ramdisk@1' ramdisk subimage
Description: Ramdisk Image for Tegra TX2
Type: RAMDisk Image
Compression: gzip compressed
Data Start: 0x920eca74
Data Size: 5565090 Bytes = 5.3 MiB
Architecture: AArch64
OS: Linux
Load Address: 0x82a00000
Entry Point: 0x82a00000
Hash algo: sha256
Hash value:
b248b753bb8c599756c40fc3f11b9c418e6638872f6af3ee44243af69a4f0b3f
Verifying Hash Integrity ... sha256+ OK
Loading ramdisk from 0x920eca74 to 0x82a00000
## Loading fdt from FIT Image at 90000000 ...
Using 'conf@1' configuration
Trying 'fdt@1' fdt subimage
Description: DTB for Tegra TX2
Type: Flat Device Tree
Compression: uncompressed
Data Start: 0x920989cc
Data Size: 344019 Bytes = 336 KiB
Architecture: AArch64
Hash algo: sha256
Hash value:
f2b4b8ac842eac0acfe25e129e102d9919ad16ce40499b079b4a73eb1f39f059
Verifying Hash Integrity ... sha256+ OK
Booting using the fdt blob at 0x920989cc
Loading Kernel Image ... OK
reserving fdt memory region: addr=80000000 size=10000
Loading Ramdisk to 8eab1000, end 8efffaa2 ... OK
Loading Device Tree to 000000008ea5a000, end 000000008eab0fd2 ... OK
Starting kernel ..."
Thanks again for your time.
- Rayees
-----Original Message-----
From: Simon Glass <s...@chromium.org>
Sent: Monday, October 21, 2019 2:13 PM
To: Rayees Shamsuddin <rayees.shamsud...@intusurg.com>
Cc: u-boot@lists.denx.de
Subject: [EXTERNAL] Re: Need help with verified u-boot on Tegra TX2
Hi Rayees,
On Sat, 19 Oct 2019 at 20:14, Rayees Shamsuddin
<rayees.shamsud...@intusurg.com> wrote:
>
> Simon,
>
> Thanks for all your great and pioneering effort on verified u-boot. I am
> benefiting a lot for your work. I am trying to implement verified u-boot on
> Tegra TX2.
>
> Based on the wonderful documentation that you provided, I was able to
> successfully create a fit image and got the dtb and kernel to boot.
> But I ran into some issues when I incorporated ramdisk into the fit
> image. Initially, it would get stuck on “Starting kernel …”. Then I
> modified the environment as follows setenv initrd_high 8effffff setenv
> fdt_high 8effffff
>
> Initially it was set to
> fdt_high=ffffffffffffffff
> initrd_high=ffffffffffffffff
>
> I haven’t quite understood why this change caused the kernel to load. Is it
> because initrd_high=ffffffffffffffff overwrites the relocatable u-boot code?
>
> Anyway after this change, I got the kernel to boot, but with one caveat – the
> RAMDISK couldn’t be loaded.
>
> Booting using the fdt blob at 0x920989cc
> Loading Kernel Image ... OK
> reserving fdt memory region: addr=80000000 size=10000
> Loading Ramdisk to 8eab1000, end 8efffaa2 ... OK
> Loading Device Tree to 000000008ea5a000, end 000000008eab0fd2 ...
> OK
>
> Starting kernel ...
>
> [ 0.000000] Booting Linux on physical CPU 0x100
>
> However, I saw the message
> [ 5.403174] RAMDISK: Couldn't find valid RAM disk image starting at 0.
>
> I would be grateful if you could provide me some guidance on what might be
> causing this issue or how to go about resolving this.
Are you saying that it works correctly without verified boot?
Normally U-Boot should pass a pointer to the ramdisk to linux. That should not
change with vboot.
Regards,
Simon
>
> Thanks and Regards
> Rayees Shamsuddin
> Product Security Engineer
> Intuitive Surgical
>
> Tegra.its
>
> /dts-v1/;
> / {
> description = "fitImage for Tegra TX2";
> #address-cells = <1>;
> images {
> kernel@1 {
> description = "Linux kernel";
> data = /incbin/("Image");
> arch = "arm64";
> os = "linux";
> type = "kernel";
> compression = "none";
> load = <0x80280000>;
> entry = <0x80280000>;
> hash@1 {
> algo = "sha256";
> };
> };
> fdt@1 {
> description = "DTB for Tegra TX2";
> data = /incbin/("tegra186-quill-p3310-1000-c03-00-base.dtb");
> type = "flat_dt";
> arch = "arm64";
> compression = "none";
> hash@1 {
> algo = "sha256";
> };
> };
> ramdisk@1 {
> description = "Ramdisk Image for Tegra TX2";
> data = /incbin/("initrd");
> type = "ramdisk";
> arch = "arm64";
> os = "linux";
> compression = "gzip";
> load = <0x82a00000>;
> entry = <0x82a00000>;
> hash@1 {
> algo = "sha256";
> };
> };
> };
> configurations {
> default = "conf@1";
> conf@1 {
> description = "Boot Linux kernel, FDT blob and ramdisk";
> kernel = "kernel@1";
> fdt = "fdt@1";
> ramdisk = "ramdisk@1";
> signature@1 {
> algo = "sha256,rsa4096";
> key-name-hint = "tx2_key";
> sign-images = "fdt", "kernel", "ramdisk";
> };
> };
> };
> };
>
>
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
NOTE THAT THIS EMAIL ORIGINATED FROM OUTSIDE OF INTUITIVE SURGICAL..
Be alert for fraudulent emails that spoof internal “@intusurg.com” email
addresses. Report these or other security threats to: ithelp...@intusurg.com.
Tegra186 (P2771-0000-500) # printenv
arch=arm
baudrate=115200
board=p2771-0000
board_name=p2771-0000
boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr}
${prefix}${script}; source ${scriptaddr}
boot_efi_binary=load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r}
efi/boot/bootaa64.efi; if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r}
${fdt_addr_r};else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi
boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr}
${prefix}extlinux/extlinux.conf
boot_net_pci_enum=pci enum
boot_net_usb_start=usb start
boot_prefixes=/ /boot/
boot_script_dhcp=boot.scr.uimg
boot_scripts=boot.scr.uimg boot.scr
boot_targets=mmc1 mmc0 usb0 pxe dhcp
bootcmd=run distro_bootcmd
bootcmd_dhcp=run boot_net_usb_start; run boot_net_pci_enum; if dhcp
${scriptaddr} ${boot_script_dhcp}; then source ${scriptaddr}; fi;setenv
efi_fdtfile ${fdtfile}; setenv efi_old_vci ${bootp_vci};setenv efi_old_arch
${bootp_arch};setenv bootp_vci PXEClient:Arch:00011:UNDI:003000;setenv
bootp_arch 0xb;if dhcp ${kernel_addr_r}; then tftpboot ${fdt_addr_r}
dtb/${efi_fdtfile};if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r}
${fdt_addr_r}; else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi;fi;setenv
bootp_vci ${efi_old_vci};setenv bootp_arch ${efi_old_arch};setenv
efi_fdtfile;setenv efi_old_arch;setenv efi_old_vci;
bootcmd_mmc0=setenv devnum 0; run mmc_boot
bootcmd_mmc1=setenv devnum 1; run mmc_boot
bootcmd_pxe=run boot_net_usb_start; run boot_net_pci_enum; dhcp; if pxe get;
then pxe boot; fi
bootcmd_usb0=setenv devnum 0; run usb_boot
bootdelay=2
calculated_vars=kernel_addr_r fdt_addr_r scriptaddr pxefile_addr_r
ramdisk_addr_r
cbootargs=root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4
console=ttyS0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0 video=tegrafb
no_console_suspend=1 earlycon=uart8250,mmio32,0x3100000
nvdumper_reserved=0x2772e0000 gpt usbcore.old_scheme_first=1 tegraid=18.1.2.0.0
maxcpus=6 boot.slot_suffix= boot.ratchetvalues=0.2031647.1
bl_prof_dataptr=0x10000@0x275840000 sdhci_tegra.en_boot_part_access=1
cpu=armv8
defaultdevplist=1
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
efi_dtb_prefixes=/ /dtb/ /dtb/current/
ethaddr=00:04:4b:a8:0e:61
fdt_addr=80000000
fdt_addr_r=82400000
fdt_addr_r_align=00200000
fdt_addr_r_offset=00000000
fdt_addr_r_size=00200000
fdt_copy_node_paths=/chosen/plugin-manager:/chosen/reset:/memory@80000000
fdt_copy_prop_paths=/bpmp/carveout-start:/bpmp/carveout-size:/chosen/nvidia,bluetooth-mac:/chosen/nvidia,ether-mac:/chosen/nvidia,wifi-mac:/chosen/ecid:/chosen/linux,initrd-start:/chosen/linux,initrd-end:/serial-number
fdt_copy_src_addr=80000000
fdt_high=ffffffffffffffff
fdtcontroladdr=ffb1fe20
initrd_high=ffffffffffffffff
kernel_addr_r=80280000
kernel_addr_r_aliases=loadaddr
kernel_addr_r_align=00200000
kernel_addr_r_offset=00080000
kernel_addr_r_size=02000000
load_efi_dtb=load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r}
${prefix}${efi_fdtfile}
loadaddr=80280000
mmc_boot=if mmc dev ${devnum}; then setenv devtype mmc; run
scan_dev_for_boot_part; fi
pxefile_addr_r=82800000
pxefile_addr_r_align=00200000
pxefile_addr_r_offset=00000000
pxefile_addr_r_size=00200000
ramdisk_addr_r=82a00000
ramdisk_addr_r_align=00200000
ramdisk_addr_r_offset=00000000
ramdisk_addr_r_size=02000000
scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for
prefix in ${boot_prefixes}; do run scan_dev_for_extlinux; run
scan_dev_for_scripts; done;run scan_dev_for_efi;
scan_dev_for_boot_part=part list ${devtype} ${devnum} -bootable devplist; env
exists devplist || setenv devplist $defaultdevplist; for distro_bootpart in
${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype;
then run scan_dev_for_boot; fi; done
scan_dev_for_efi=setenv efi_fdtfile ${fdtfile}; for prefix in
${efi_dtb_prefixes}; do if test -e ${devtype} ${devnum}:${distro_bootpart}
${prefix}${efi_fdtfile}; then run load_efi_dtb; fi;done;if test -e ${devtype}
${devnum}:${distro_bootpart} efi/boot/bootaa64.efi; then echo Found EFI
removable media binary efi/boot/bootaa64.efi; run boot_efi_binary; echo EFI
LOAD FAILED: continuing...; fi; setenv efi_fdtfile
scan_dev_for_extlinux=if test -e ${devtype} ${devnum}:${distro_bootpart}
${prefix}extlinux/extlinux.conf; then echo Found
${prefix}extlinux/extlinux.conf; run boot_extlinux; echo SCRIPT FAILED:
continuing...; fi
scan_dev_for_scripts=for script in ${boot_scripts}; do if test -e ${devtype}
${devnum}:${distro_bootpart} ${prefix}${script}; then echo Found U-Boot script
${prefix}${script}; run boot_a_script; echo SCRIPT FAILED: continuing...; fi;
done
scriptaddr=82600000
scriptaddr_align=00200000
scriptaddr_offset=00000000
scriptaddr_size=00200000
soc=tegra186
stderr=serial
stdin=serial
stdout=serial
usb_boot=usb start; if usb dev ${devnum}; then setenv devtype usb; run
scan_dev_for_boot_part; fi
vendor=nvidia
Environment size: 5050/8188 bytes_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
