问题描述
我正在使用RaspBerry Pi 4，试图在其上添加经过验证的启动。我使用buildroot来构建基本的SD卡映像，并使用mkimage对该映像进行了签名。 我首先在u-boot控制台中通过以下两个选项进行测试：
测试1： 我使用了“ bootm 0x01000000”，然后让u-boot找出FIT映像中的设备树。
In: serial
Out: vidconsole
Err: vidconsole
Net: eth0: ethernet@7d580000
Hit any key to stop autoboot: 0
U-Boot> setenv bootargs console=tty1 console=ttyAMA0,115200 root=/dev/mmcblk0p2 rootwait
U-Boot> printenv bootargs
bootargs=console=tty1 console=ttyAMA0,115200 root=/dev/mmcblk0p2 rootwait
U-Boot> fatload mmc 0:1 0x01000000 Image
15731478 bytes read in 700 ms (21.4 MiB/s)
U-Boot> bootm 0x01000000
## Loading kernel from FIT Image at 01000000 ...
Using 'config-1' configuration
Verifying Hash Integrity ... OK
Trying 'kernel-1' kernel subimage
Description: default kernel
Type: Kernel Image
Compression: uncompressed
Data Start: 0x010000dc
Data Size: 15682048 Bytes = 15 MiB
Architecture: AArch64
OS: Linux
Load Address: 0x00080000
Entry Point: 0x00080000
Hash algo: sha1
Hash value: 1f7b5be7099568611cbc76c0b83202ae5829073a
Verifying Hash Integrity ... sha1+ OK
## Loading fdt from FIT Image at 01000000 ...
Using 'config-1' configuration
Verifying Hash Integrity ... OK
Trying 'fdt-1' fdt subimage
Description: device tree
Type: Flat Device Tree
Compression: uncompressed
Data Start: 0x01ef4bc4
Data Size: 47437 Bytes = 46.3 KiB
Architecture: AArch64
Hash algo: sha1
Hash value: b0ba4b289dbcb0c1571103ca5a013aaddaebb03e
Verifying Hash Integrity ... sha1+ OK
Booting using the fdt blob at 0x1ef4bc4
Loading Kernel Image
Using Device Tree in place at 0000000001ef4bc4,end 0000000001f03510
Starting kernel ...
引导过程停留在此“正在启动内核...”消息上。
测试2： 我使用了“ bootm 0x01000000-0x2eff4000”，并使用$ {fdt_addr}在u-boot位置指定了设备树
In: serial
Out: vidconsole
Err: vidconsole
Net: eth0: ethernet@7d580000
Hit any key to stop autoboot: 2 0
U-Boot> setenv bootargs console=tty1 console=ttyAMA0,115200 root=/dev/mmcblk0p2 rootwait
U-Boot> fatload mmc 0:1 0x01000000 Image
15731478 bytes read in 700 ms (21.4 MiB/s)
U-Boot> bootm 0x01000000 - 0x2eff4000
## Loading kernel from FIT Image at 01000000 ...
Using 'config-1' configuration
Verifying Hash Integrity ... OK
Trying 'kernel-1' kernel subimage
Description: default kernel
Type: Kernel Image
Compression: uncompressed
Data Start: 0x010000dc
Data Size: 15682048 Bytes = 15 MiB
Architecture: AArch64
OS: Linux
Load Address: 0x00080000
Entry Point: 0x00080000
Hash algo: sha1
Hash value: 1f7b5be7099568611cbc76c0b83202ae5829073a
Verifying Hash Integrity ... sha1+ OK
## Flattened Device Tree blob at 2eff4000
Booting using the fdt blob at 0x2eff4000
Loading Kernel Image
Using Device Tree in place at 000000002eff4000,end 000000002f002f79
Starting kernel ...
[ 0.000000] Booting Linux on physical cpu 0x0000000000 [0x410fd083]
[ 0.000000] Linux version 5.4.51-v8 (xiangrong.li@ubuntu) (gcc version 9.3.0 (buildroot 2020.08)) #1 SMP PREEMPT Tue Nov 3 10:06:41 EST 2020
[ 0.000000] Machine model: RaspBerry Pi 4 Model B Rev 1.2
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
u-boot可以正常启动进入内核。
评论：
我的FIT为其文件成像：
/dts-v1/;
/ {
description = "RPi FIT Image";
#address-cells = <2>;
images {
kernel-1 {
description = "default kernel";
data = /incbin/("Image");
type = "kernel";
arch = "arm64";
os = "linux";
compression = "none";
load = <0x00080000>;
entry = <0x00080000>;
hash-1 {
algo = "sha1";
};
};
fdt-1 {
description = "device tree";
data = /incbin/("bcm2711-rpi-4-b.dtb");
type = "flat_dt";
arch = "arm64";
compression = "none";
hash-1 {
algo = "sha1";
};
};
};
configurations {
default = "config-1";
config-1 {
description = "default configuration";
kernel = "kernel-1";
fdt = "fdt-1";
signature-1 {
algo = "sha1,rsa2048";
key-name-hint = "dev";
sign-images = "fdt","kernel";
};
};
};
};
u-boot环境
arch=arm
baudrate=115200
board=rpi
board_name=4 Model B
board_rev=0x11
board_rev_scheme=1
board_revision=0xB03112
boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; source ${scriptaddr}
boot_efi_binary=if fdt addr ${fdt_addr_r}; then bootefi bootmgr ${fdt_addr_r};else bootefi bootmgr ${fdtcontroladdr};fi;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} ${prefix}${boot_syslinux_conf}
boot_prefixes=/ /boot/
boot_script_dhcp=boot.scr.uimg
boot_scripts=boot.scr.uimg boot.scr
boot_syslinux_conf=extlinux/extlinux.conf
boot_targets=mmc0 mmc1 pxe dhcp
bootcmd=run distro_bootcmd
bootcmd_dhcp=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=devnum=0; run mmc_boot
bootcmd_mmc1=devnum=1; run mmc_boot
bootcmd_pxe=dhcp; if pxe get; then pxe boot; fi
bootdelay=2
cpu=armv8
dfu_alt_info=u-boot.bin fat 0 1;uboot.env fat 0 1;config.txt fat 0 1;Image fat 0 1
dhcpuboot=usb start; dhcp u-boot.uimg; bootm
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
efi_dtb_prefixes=/ /dtb/ /dtb/current/
ethaddr=xxxxxxxxxxxxxxxxxxx
fdt_addr=2eff4000
fdt_addr_r=0x02600000
fdt_high=ffffffffffffffff
fdtcontroladdr=39730e00
fdtfile=broadcom/bcm2711-rpi-4-b.dtb
initrd_high=ffffffffffffffff
kernel_addr_r=0x00080000
load_efi_dtb=load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}${efi_fdtfile}
loadaddr=0x00200000
mmc_boot=if mmc dev ${devnum}; then devtype=mmc; run scan_dev_for_boot_part; fi
pxefile_addr_r=0x02500000
ramdisk_addr_r=0x02700000
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 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype; then run scan_dev_for_boot; fi; done; setenv devplist
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} ${prefix}${boot_syslinux_conf}; then echo Found ${prefix}${boot_syslinux_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=0x02400000
serial#=10000000exxxxxxx
soc=bcm283x
stderr=serial,vidconsole
stdin=serial,usbkbd
stdout=serial,vidconsole
usbethaddr=xxxxxxxxxxxxxxx
vendor=raspBerrypi
我对哪里出错有任何想法吗？谢谢。
解决方法
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