masayuki2009 commented on PR #9297:
URL: https://github.com/apache/nuttx/pull/9297#issuecomment-1619348532
@CV-Bowen
I noticed that qemu-armv8a:netnsh_hv does not work (netnsh_smp_hv as well)
with qemu-7.1 + kvm on raspi3b+.
The latest master
```
ishikawa@raspi3:~$ ./script/start_qemu-hv-blk-net.sh
+ /home/ishikawa/opensource/QEMU/qemu-7.1/build/qemu-system-aarch64 -cpu
host -accel kvm -smp 4 -nographic -machine virt -global
virtio-mmio.force-legacy=false -netdev
user,id=u1,hostfwd=tcp:127.0.0.1:10023-10.0.2.15:23,hostfwd=tcp:127.0.0.1:15001-10.0.2.15:5001
-device virtio-net-device,netdev=u1,bus=virtio-mmio-bus.0 -drive
file=/home/ishikawa/mydisk-1gb.img,if=none,format=raw,id=hd -device
virtio-blk-device,bus=virtio-mmio-bus.1,drive=hd -kernel ./nuttx
telnetd [4:100]
NuttShell (NSH) NuttX-12.0.0
nsh> uname -a
NuttX 12.0.0 cb2849b4ab-dirty Jul 4 2023 10:38:52 arm64 qemu-armv8a
nsh> ps
PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
0 0 0 FIFO Kthread N-- Ready 0000000000000000
008144 000976 11.9% Idle Task
1 1 192 RR Kthread --- Waiting Semaphore 0000000000000000
008096 000960 11.8% hpwork 0x402df9b0
2 2 100 RR Kthread --- Waiting Semaphore 0000000000000000
008096 000960 11.8% lpwork 0x402df980
3 3 100 RR Task --- Running 0000000000000000
008112 002912 35.8% nsh_main
4 4 100 RR Task --- Waiting Semaphore 0000000000020000
008112 001680 20.7% telnetd
nsh> mount -t vfat /dev/virtblk0 /mnt
nsh> df
Block Number
Size Blocks Used Available Mounted on
4096 261628 230 261398 /mnt
0 0 0 0 /proc
nsh> ping 10.0.2.2
PING 10.0.2.2 56 bytes of data
No response from 10.0.2.2: icmp_seq=0 time=1000 ms
56 bytes from 10.0.2.2: icmp_seq=1 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=2 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=3 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=4 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=5 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=6 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=7 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=8 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=9 time=0.0 ms
10 packets transmitted, 9 received, 10% packet loss, time 10130 ms
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
```
This PR
```
ishikawa@raspi3:~$ ./script/start_qemu-hv-blk-net.sh
+ /home/ishikawa/opensource/QEMU/qemu-7.1/build/qemu-system-aarch64 -cpu
host -accel kvm -smp 4 -nographic -machine virt -global
virtio-mmio.force-legacy=false -netdev
user,id=u1,hostfwd=tcp:127.0.0.1:10023-10.0.2.15:23,hostfwd=tcp:127.0.0.1:15001-10.0.2.15:5001
-device virtio-net-device,netdev=u1,bus=virtio-mmio-bus.0 -drive
file=/home/ishikawa/mydisk-1gb.img,if=none,format=raw,id=hd -device
virtio-blk-device,bus=virtio-mmio-bus.1,drive=hd -kernel ./nuttx
error: kvm run failed Function not implemented
PC=00000000402ca2c4 X00=0000000000000048 X01=000000004a309758
X02=0000000040309558 X03=ffffffffc9cf6da8 X04=0000000000000048
X05=000000000a000300 X06=0000000000000148 X07=0000000040301000
X08=00000000403022a8 X09=0000000000000000 X10=0000000000000000
X11=0000000000000000 X12=0000000000000000 X13=0000000000000000
X14=0000000000000000 X15=0000000000000000 X16=00000000402c8150
X17=0000000000000000 X18=0000000000000000 X19=000000004030dde0
X20=000000004030de20 X21=0000000000000000 X22=000000004030ddf8
X23=000000004030dc60 X24=0000000000000000 X25=0000000000000000
X26=0000000000000000 X27=0000000000000000 X28=0000000000000000
X29=0000000000000000 X30=00000000402868d0 SP=0000000040309520
PSTATE=20000005 --C- EL1h
QEMU: Terminated
```
I also noticed that if I remove virtio-blk-device, it woks (of course, the
block device can not be used)
```
ishikawa@raspi3:~$
/home/ishikawa/opensource/QEMU/qemu-7.1/build/qemu-system-aarch64 -cpu host
-accel kvm -smp 4 -nographic -machine virt -global
virtio-mmio.force-legacy=false -netdev
user,id=u1,hostfwd=tcp:127.0.0.1:10023-10.0.2.15:23,hostfwd=tcp:127.0.0.1:15001-10.0.2.15:5001
-device virtio-net-device,netdev=u1,bus=virtio-mmio-bus.0 -drive
file=/home/ishikawa/mydisk-1gb.img,if=none,format=raw,id=hd -kernel ./nuttx
telnetd [4:100]
NuttShell (NSH) NuttX-10.2.0
nsh> uname -a
NuttX 10.2.0 2b32d35b4b Jul 4 2023 10:48:31 arm64 qemu-armv8a
nsh> ps
PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
0 0 0 FIFO Kthread N-- Ready 0000000000000000
008144 000896 11.0% Idle Task
1 1 192 RR Kthread --- Waiting Semaphore 0000000000000000
008096 000960 11.8% hpwork 0x402e19b0
2 2 100 RR Kthread --- Waiting Semaphore 0000000000000000
008096 000960 11.8% lpwork 0x402e1980
3 3 100 RR Task --- Running 0000000000000000
008112 002912 35.8% nsh_main
4 4 100 RR Task --- Waiting Semaphore 0000000000020000
008112 001680 20.7% telnetd
nsh> ping 10.0.2.2
PING 10.0.2.2 56 bytes of data
No response from 10.0.2.2: icmp_seq=0 time=1000 ms
56 bytes from 10.0.2.2: icmp_seq=1 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=2 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=3 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=4 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=5 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=6 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=7 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=8 time=0.0 ms
56 bytes from 10.0.2.2: icmp_seq=9 time=0.0 ms
10 packets transmitted, 9 received, 10% packet loss, time 10130 ms
rtt min/avg/max/mdev = 0.000/0.000/0.000/0.000 ms
```
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