更新: 新
pmon固件已支持efi_stub, 详情查看 10.1节
1. 查看设备 #
PMON> devls
syn0
wd0
usb0
sync0, igb0, em0 等字样,表示网络设备, 即网卡
wd0, nvme0, usb0, cd0等字样表示存储设备, 即硬盘, U盘等.
2. 查看pci信息 #
PMON> pciscan
>> BUS 0 <<
Dev Fun Device description
--------------------------
0 0 vendor/product: 0x0014/0x7a00 (bridge, host, interface: 0x00, revision: 0x00)
0x00000000:0x00000000 mem @0x00000000, 0 bytes
0 1 vendor/product: 0x0014/0x7a10 (bridge, host, interface: 0x00, revision: 0x01)
0x00000000:0x00000000 mem @0x00000000, 0 bytes
0 2 vendor/product: 0x0014/0x7a20 (bridge, host, interface: 0x00, revision: 0x01)
0x00000000:0x00000000 mem @0x00000000, 0 bytes
0 3 vendor/product: 0x0014/0x7a30 (bridge, host, interface: 0x00, revision: 0x00)
0x00000000:0x00000000 mem @0x00000000, 0 bytes
4 0 vendor/product: 0x0014/0x7a24 (serialbus, USB, interface: 0x10, revision: 0x02)
64-bit mem,low address
0x59648004:0xffff8004 mem @0x59648000, 32768 bytes
0x00000000:0x00000000 mem @0x00000000, 0 bytes
......
......
3. 产看固件版本信息 #
PMON> vers
PMON: PMON 5.0.3-Release (loongson) #233: Wed Oct 18 15:09:40 CST 2023 commit d044be8f495e97082c8905b131d525ef31ade0b9 Author: Xiangdong Meng <mengxiangdong@loongson.cn> Date: Wed Sep 6 15:15:31 2023 +0800
4. 查看寄存器信息 #
PMON> d8 0x800000001fe00020 2
800000001fe00020 : 0000303030364133 0000000000000000 3A6000..........
5. 查看磁盘信息 #
这里fdisk命令后面的设备名是在第一节中devls命令列出来的.
PMON支持GPT和MBR分区
PMON暂不支持设备热插拔.
MBR:
PMON> fdisk usb0
Device Boot Start End Sectors Id System
usb0a 2048 122880000 122877952 83 Linux
GPT:
PMON> fdisk usb0
Device Boot Start End Sectors Id System
usb0a 2048 122877951 122875904 0FC63DAF Linux filesystem
6. 查看磁盘中的文件 #
/dev/fs/后的字符是fdisk usb0命令中, Device一列中显示的内容.
PMON只支持Fat, Ext2/3/4, ISO9660等分区
PMON在查看文件时, 通常不用指定文件系统类型.
比如加载一个fat分区的内容: load /dev/fs/usb0/和load /dev/fs/fat@usb0/的效果是一样的
Fat分区:
PMON> load /dev/fs/usb0/
gz.mxd <FILE> 993222
boot.cfg <FILE> 403
vm.mxd <FILE> 95024056
/dev/fs/fat@usb0/: Is a directory
ext2/ext3/ext4分区:
PMON> load /dev/fs/usb1a/
|./ ../ lost+found/ gz.mxd boot.cfg
/dev/fs/ext4@usb1a/: Undefined error: 0
7. 加载内核 #
PMON> load /dev/fs/usb0a/vm.mxd
\Loading file: /dev/fs/fat@usb0a/vm.mxd (elf)
(elf)
0x9000000000200000/20053784 + 0x151ff18/922672(z) + 31926 syms|
Entry address is 00c01000
8. 加载initrd #
PMON> initrd /dev/fs/usb0a/initrd.img-4.19.0-19-loongson-3
Loading initrd image /dev/fs/usb0a/initrd.img-4.19.0-19-loongson--dl_offset 9000000090000000 addr 9000000090000000
(bin)
9. 启动内核 #
必须要在加载内核之后执行:
PMON> g console=ttyS0,115200 earlycon=uart,mmio,0x1fe001e0 root=/dev/sda3
Warning! NVRAM checksum fail. Reset!
Reached finished_ap_limit=7 in a5 microseconds
BootCore ID: 0 Collect AP: 7 Total Core: 8
ACPI: ACPI tables init.
VBIOS crc check is wrong,use default setting!
GMEM: Get vbios from ls3a spi done!
Init acpi table OK!
set coherent
[ 0.000000] Linux version 4.19.190+ (mengxiangdong@5.5) (gcc version 8.3.0 (GCC)) #9 SMP Tue Oct 17 11:14:31 CST 2023
[ 0.000000] 64-bit Loongson Processor probed (LA664 Core)
[ 0.000000] CPU0 revision is: 0014d000 (Loongson-64bit)
[ 0.000000] FPU0 revision is: 00000001
[ 0.000000] efi: SMBIOS=0xfffe000 ACPI 2.0=0xfefe000 NEWMEM=0xb036800
[ 0.000000] earlycon: uart0 at MMIO 0x000000001fe001e0 (options '')
[ 0.000000] bootconsole [uart0] enabled
[ 0.000000] ACPI: Early table checksum verification disabled
[ 0.000000] ACPI: RSDP 0x000000000FEFE000 000024 (v02 LOONGS)
......
......
10. 加载引导文件 #
UEFI通过找到grub.efi, 接着找到grub.cfg, 进而引导内核
而PMON只需要找到boot.cfg文件即可. PMON默认会从/和/boot目录中找boot.cfg
倘若没有找到, 可以手动加载:
PMON> bl /dev/fs/fat@usb0a/boot.cfg
������������������������������������������������Ŀ
� Boot Menu List �
������������������������������������������������Ĵ
� -> 1 Loongnix 20 GNU/Linux 4.19.0-19-loongson-3�
� �
� �
� �
� �
� �
� �
� �
� �
� Please Select Boot Menu [1] �
��������������������������������������������������
Use the UP and DOWN keys to select the entry.
Press ENTER to boot selected OS.
Press 'c' to command-line.
Booting system in [2] second(s)
10.1. 加载grub #
最新pmon固件已经支持efi_stub, 支持像UEFI一样加载grub.efi.
PMON> bootefi /dev/fs/fat@usb0a/EFI/BOOT/BOOTLOONARCH64.efi
11. 查看文件 #
PMON> devcp /dev/fs/fat@usb0a/boot.cfg /dev/tty0
default 0
timeout 3
showmenu 0
title Loongnix 20 GNU/Linux 4.19.0-19-loongson-3
kernel /dev/fs/fat@usb0a/vmlinuz-4.19.0-19-loongson-3
initrd /dev/fs/fat@usb0a/initrd.img-4.19.0-19-loongson-3
args root=/dev/sda3 console=ttyS0,115200 loglevel=8
12. 配置网络 #
PMON> devls
Device name Type
syn0 IFNET
usb0 DISK
PMON> ifconfig syn0 192.168.1.13
synopGMAC_linux_open called
Version = 0xd137
MacAddr = 0x3e 0xd0 0x62 0xf5 0x46 0x94
===phy HALFDUPLEX MODE
DMA status reg = 0x0 before cleared!
DMA status reg = 0x0 after cleared!
register poll interrupt: gmac 0
==arp_ifinit done
===phy FULLDUPLEX MODE
Link is with 1000M Speed
PMON>
13. 加载网络文件 #
PMON支持从网络加载内核, 支持的协议有http和tftp
http:
PMON> load http://192.168.1.4/vm.mxd
\Loading file: http://192.168.1.4/vm.mxd (elf)
(elf)
0x9000000000200000/20053784 + 0x151ff18/922672(z) + 31926 syms|
Entry address is 00c01000
tftp:
PMON> load tftp://192.168.1.4/vm.mxd
\Loading file: tftp://192.168.1.4/vm.mxd (elf)
(elf)
0x9000000000200000/20053784 + 0x151ff18/922672(z) + 31926 syms|
Entry address is 00c01000
14. 更新固件 #
PMON更新固件的命令为fload
与加载内核类似, 可以从硬盘加载, 也可以从网络加载
从硬盘加载:
PMON> fload /dev/fs/usb0a/gz.mxd
Loading file: /dev/fs/fat@usb0a/gz.mxd dl_offset 900000000f800000 addr 900000000f800000
(bin)
-
Loaded 993222 bytes
Programming flash 900000000f800000:f27c6 into 800000001c000000
Erase end!
-Programming end!
从tftp服务器加载:
PMON> fload tftp://192.168.1.4/gz.mxd
Loading file: tftp://192.168.1.4/gz.mxd dl_offset 900000000f800000 addr 900000000f800000
(bin)
-
Loaded 993222 bytes
Programming flash 900000000f800000:f27c6 into 800000001c000000
Erase end!
-Programming end!
从http服务器加载:
PMON> fload http://192.168.1.4/gz.mxd
Loading file: http://192.168.1.4/gz.mxd dl_offset 900000000f800000 addr 900000000f800000
(bin)
-
Loaded 993222 bytes
Programming flash 900000000f800000:f27c6 into 800000001c000000
Erase end!
-Programming end!