楼主尝试在orangepi rv2上运行xv6，通过在u-boot加载bin文件到指定内核指定地址，然后再运行go命令，使其在指定地址上开始运行。当程序运行到写入分页硬件satp寄存器时，CPU似乎停止了工作，不再有任何输出。通过gdb调试发现此时内核出现异常，并跳转到kernelvec函数，然而它只会一直停留在第一条指令，不会继续往下运行。
作为对比，我在QEMU上运行一样的程序时，并没有发现相同的错误。
我怀疑可能对于K1芯片来说，写入分页硬件需要进行额外的操作。如果有朋友遇到类似的问题，希望不吝赐教。不胜感激！
GDB
(gdb) target remote localhost:3333
Remote debugging using localhost:3333
wait_debugger () at kernel/entry.S:30
30 bnez t0, wait_debugger
(gdb) info threads
Id Target Id Frame
* 1 Thread 1 "k1.cpu.0" (Name: k1.cpu.0, state: debug-request) wait_debugger ()
at kernel/entry.S:30
(gdb) break vm.c:106
Breakpoint 1 at 0x8000d5c: file kernel/vm.c, line 106.
(gdb) set $t0=0
(gdb) continue
Continuing.
Disabling abstract command writes to CSRs.
Breakpoint 1, kvminithart () at kernel/vm.c:106
106 sbi_console_puts("kvminithart: make satp\n");
(gdb) info registers mstatus stvec
mstatus 0x8000000a00006680 SD:1 VM:00 MXR:0 PUM:0 MPRV:0 XS:0 FS:3 MPP:0 HPP:3 SPP:0 MPIE:1 HPIE:0 SPIE:0 UPIE:0 MIE:0 HIE:0 SIE:0 UIE:0
stvec 0x80052c0 134238912
(gdb) next
[k1.cpu.0] Found 8 triggers
108 w_satp(satp_value);
(gdb) si
109 sbi_console_puts("kvminithart: write satp\n");
(gdb) si
kernelvec () at kernel/kernelvec.S:18
18 addi sp, sp, -256
(gdb) info registers mstatus
mstatus 0x8000000a00006780 SD:1 VM:00 MXR:0 PUM:0 MPRV:0 XS:0 FS:3 MPP:0 HPP:3 SPP:1 MPIE:1 HPIE:0 SPIE:0 UPIE:0 MIE:0 HIE:0 SIE:0 UIE:0
(gdb) info registers scause
scause 0xc 12
(gdb) si
18 addi sp, sp, -256
(gdb) si
18 addi sp, sp, -256
(gdb) si
18 addi sp, sp, -256
(gdb) info registers all
zero 0x0 0
ra 0x8000d68 0x8000d68 <kvminithart+54>
sp 0x8009af0 0x8009af0 <stack0+8112>
gp 0x7de9cd50 0x7de9cd50
tp 0x1 0x1
t0 0x2000 8192
t1 0x9000001 150994945
t2 0x80028c0 134228160
fp 0x8009b10 0x8009b10 <stack0+8144>
s1 0x800000000000ffff -9223372036854710273
a0 0x0 0
a1 0x0 0
a2 0x0 0
a3 0x0 0
a4 0x6 6
a5 0x8000000000000000 -9223372036854775808
a6 0x0 0
a7 0x1 1
s2 0x7dfbbf20 2113650464
s3 0x2 2
s4 0x7dfbbf20 2113650464
s5 0x7efe420c 2130592268
s6 0x0 0
s7 0x0 0
s8 0x0 0
s9 0x7dfbb0d0 2113646800
s10 0x0 0
s11 0x0 0
t3 0x0 0
t4 0x0 0
t5 0x8004af6 134236918
t6 0x7de938d0 2112436432
pc 0x80052c0 0x80052c0 <kernelvec>
QEMU
OpenSBI v1.5.1
____ _____ ____ _____
/ __ \ / ____| _ \_ _|
| | | |_ __ ___ _ __ | (___ | |_) || |
| | | | '_ \ / _ \ '_ \ \___ \| _ < | |
| |__| | |_) | __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
| |
|_|
Platform Name : riscv-virtio,qemu
Platform Features : medeleg
Platform HART Count : 3
Platform IPI Device : aclint-mswi
Platform Timer Device : aclint-mtimer @ 10000000Hz
Platform Console Device : uart8250
Platform HSM Device : ---
Platform PMU Device : ---
Platform Reboot Device : syscon-reboot
Platform Shutdown Device : syscon-poweroff
Platform Suspend Device : ---
Platform CPPC Device : ---
Firmware Base : 0x80000000
Firmware Size : 347 KB
Firmware RW Offset : 0x40000
Firmware RW Size : 91 KB
Firmware Heap Offset : 0x4d000
Firmware Heap Size : 39 KB (total), 2 KB (reserved), 11 KB (used), 25 KB (free)
Firmware Scratch Size : 4096 B (total), 416 B (used), 3680 B (free)
Runtime SBI Version : 2.0
Domain0 Name : root
Domain0 Boot HART : 0
Domain0 HARTs : 0*,1*,2*
Domain0 Region00 : 0x0000000000100000-0x0000000000100fff M: (I,R,W) S/U: (R,W)
Domain0 Region01 : 0x0000000010000000-0x0000000010000fff M: (I,R,W) S/U: (R,W)
Domain0 Region02 : 0x0000000002000000-0x000000000200ffff M: (I,R,W) S/U: ()
Domain0 Region03 : 0x0000000080040000-0x000000008005ffff M: (R,W) S/U: ()
Domain0 Region04 : 0x0000000080000000-0x000000008003ffff M: (R,X) S/U: ()
Domain0 Region05 : 0x000000000c400000-0x000000000c5fffff M: (I,R,W) S/U: (R,W)
Domain0 Region06 : 0x000000000c000000-0x000000000c3fffff M: (I,R,W) S/U: (R,W)
Domain0 Region07 : 0x0000000000000000-0xffffffffffffffff M: () S/U: (R,W,X)
Domain0 Next Address : 0x0000000080200000
Domain0 Next Arg1 : 0x0000000087e00000
Domain0 Next Mode : S-mode
Domain0 SysReset : yes
Domain0 SysSuspend : yes
Boot HART ID : 0
Boot HART Domain : root
Boot HART Priv Version : v1.12
Boot HART Base ISA : rv64imafdch
Boot HART ISA Extensions : sstc,zicntr,zihpm,zicboz,zicbom,sdtrig,svadu
Boot HART PMP Count : 16
Boot HART PMP Granularity : 2 bits
Boot HART PMP Address Bits: 54
Boot HART MHPM Info : 16 (0x0007fff8)
Boot HART Debug Triggers : 2 triggers
Boot HART MIDELEG : 0x0000000000001666
Boot HART MEDELEG : 0x0000000000f0b509
hart0
xv6 kernel is booting
freerange
kinit done
kvminit done
kvminithart done