run linux in xvisor

[Gao-xt]

Hi,I encountered the following issue when attempting to run Linux on XVisor:

XVisor# guest kick guest0
guest0: Kicked
XVisor# cpu_vcpu_stage2_map: guest_phys=0x000127170AA04000 size=0x4096 map failed
do_error: CPU0: VCPU=guest0/vcpu0 page fault failed (error -1)
zero=0x0000000000000000 ra=0x0000000000000000
sp=0x0000000000000000 gp=0x0000000000000000
tp=0x0000000000000000 s0=0x0000000000000000
s1=0x0000000000000000 a0=0x0000000000000000
a1=0x0000000000000000 a2=0x0000000000000000
a3=0x0000000000000000 a4=0x000127170AA04C63
a5=0x0000000000000000 a6=0x0000000000000000
a7=0x000127170AA04C63 s2=0x0000000000000000
s3=0x0000000000000000 s4=0x0000000000000000
s5=0x0000000000000000 s6=0x0000000000000000
s7=0x0000000000000000 s8=0x0000000000000000
s9=0x0000000000000000 s10=0x0000000000000000
s11=0x0000000000000000 t0=0x0000000000000000
t1=0x0000000000000000 t2=0x0000000000000000
t3=0x0000000000000000 t4=0x0000000000000000
t5=0x0000000000000000 t6=0x0000000000000000
sepc=0x0000000000000026 sstatus=0x0000000200004120
hstatus=0x00000002002001C0 sp_exec=0x0000000010A41000
scause=0x0000000000000017 stval=0x000127170AA04C63
htval=0x000049C5C2A81318 htinst=0x0000000001103023

When I mount "disk.img," I identified the issue in "build/tests/riscv/virt64/basic/firmware.bin." How can I resolve the compilation error for "firmware.bin"?

--ubuntu22.04
--met the same issue in both xvisor and xvisor-next
--qemu latest

[avpatel]

Strange, I don't see compilation issue with basic firmware.

Can you share the compile error log ?

Regards,
Anup

[Gao-xt]

I rebuilt the disk.img using another firmware.bin generated in a CentOS environment, and didn't encounter this issue. Subsequently, following the solution provided by #175, I upgraded Ubuntu to 23.04 and riscv64-unknown-linux-gnu-gcc to version 12. However, when compiling both Xvisor and Xvisor-next again, the following issue arose:

Assembler messages:
Fatal error: -march=rv64imafdc_zicsr_zifencei: Invalid or unknown z ISA extension: 'zifencei'
make: *** [Makefile:430: /home/armin/workspace-xvisor/xvisor-next/build/arch/riscv/cpu/generic/cpu_entry.o] Error 1

same issue in #150

[avpatel]

Are you trying latest Xvisor repo ?

[Gao-xt]

It's peculiar that I remake the toolchain then somehow it works.：）
Thank you for your time and patience.