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本机环境 ARM A53 CPU

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[root@rk3528-openeuler22 ~]# lscpu
Architecture:                aarch64
  CPU op-mode(s):            32-bit, 64-bit
  Byte Order:                Little Endian
CPU(s):                      4
  On-line CPU(s) list:       0-3
Vendor ID:                   ARM
  Model name:                Cortex-A53
    Model:                   4
    Thread(s) per core:      1
    Core(s) per cluster:     4
    Socket(s):               -
    Cluster(s):              1
    Stepping:                r0p4
    CPU max MHz:             2016.0000
    CPU min MHz:             408.0000
    BogoMIPS:                48.00
    Flags:                   fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
Vulnerabilities:
  Gather data sampling:      Not affected
  Indirect target selection: Not affected
  Itlb multihit:             Not affected
  L1tf:                      Not affected
  Mds:                       Not affected
  Meltdown:                  Not affected
  Mmio stale data:           Not affected
  Reg file data sampling:    Not affected
  Retbleed:                  Not affected
  Spec rstack overflow:      Not affected
  Spec store bypass:         Not affected
  Spectre v1:                Mitigation; __user pointer sanitization
  Spectre v2:                Not affected
  Srbds:                     Not affected
  Tsx async abort:           Not affected
[root@rk3528-openeuler22 ~]#


[root@rk3528-openeuler22 ~]# cat /proc/cpuinfo
processor       : 0
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 1
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 2
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 3
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

Serial          : 0000000000000000
[root@rk3528-openeuler22 ~]#


[root@rk3528-openeuler22 ~]# cat /sys/devices/system/cpu/cpu0/regs/identification/midr_el1
0x00000000410fd034
[root@rk3528-openeuler22 ~]#

沙盒的进入与退出 演示

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[root@rk3528-openeuler22 ~]# ./enable_kunpeng920
[kp920] enter: 0x00000000481fd010
[kp920] CONAN_HOME: /root/.conan2_kunpeng920
conan remote disable


Welcome to 6.1.141-rk35xx-ophub

System information as of time:  Mon May 25 08:21:19 CST 2026

System load:    0.02
Memory used:    41.4%
Swap used:      5.6%
Usage On:       25%
IP address:     192.168.1.1
IP address:     192.168.10.34
Users online:   10


[root@rk3528-openeuler22 ~]# cat /sys/devices/system/cpu/cpu0/regs/identification/midr_el1
0x00000000481fd010
[root@rk3528-openeuler22 ~]# exit
[kp920] exit
[root@rk3528-openeuler22 ~]# cat /sys/devices/system/cpu/cpu0/regs/identification/midr_el1
0x00000000410fd034
[root@rk3528-openeuler22 ~]#

开始搭建 沙盒

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[root@rk3528-openeuler22 ~]# cat /tmp/fake_midr_el1
0x00000000481fd010
[root@rk3528-openeuler22 ~]# cat /tmp/fake_cpuinfo
processor       : 0
BogoMIPS        : 200.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop sha3 sm3 sm4 asimddp sha512 asimdfhm dit uscat ilrcpc flagm ssbs sb paca pacg dcpodp flagm2 frint
CPU implementer : 0x48
CPU architecture: 8
CPU variant     : 0x1
CPU part        : 0xd01
CPU revision    : 0
[root@rk3528-openeuler22 ~]# cat enable_kunpeng920
#!/bin/bash
unshare --mount --uts --propagation private bash -c '
    hostname kunpeng920-dev
    MIDR=/sys/devices/system/cpu/cpu0/regs/identification/midr_el1
    set -e
    mount --bind /home/kunpeng920/fake_midr_el1 "$MIDR"
    mount --bind /home/kunpeng920/fake_cpuinfo  /proc/cpuinfo
    set +e
    export CONAN_HOME=~/.conan2_kunpeng920
    echo "[kp920] enter: $(cat $MIDR)"
    echo "[kp920] hostname: $(hostname)"
    echo "[kp920] CONAN_HOME: $CONAN_HOME"
    mkdir -p /root/source_kp920
    cd /root/source_kp920
    bash
    umount "$MIDR"
    umount /proc/cpuinfo
    echo "[kp920] exit"
'
[root@rk3528-openeuler22 ~]#

源码编译 DPDK
[root@rk3528-openeuler22 ~]# wget https://fast.dpdk.org/rel/dpdk-22.11.11.tar.xz
[root@rk3528-openeuler22 ~]# tar xf dpdk-22.11.11.tar.xz && cd dpdk-stable-22.11.11
[root@rk3528-openeuler22 dpdk]# meson setup build --buildtype=release -Dplatform=native
[root@rk3528-openeuler22 dpdk]# grep -i "tsv110\|machine\|cpu" build/build.ninja | head -5
[root@rk3528-openeuler22 dpdk]# #可以看到 -march=armv8.2-a+crypto -mtune=tsv110
[root@rk3528-openeuler22 dpdk]# ninja -C build

在 ARM A53 上跑会直接 SIGILL。
[root@rk3528-openeuler22 dpdk]# ./build/app/dpdk-testpmd
Illegal instruction (core dumped)
[root@rk3528-openeuler22 dpdk]#

LSE 指令确认存在，鲲鹏920 版本编译成功。
ldadd 和 swpal 都是 ARMv8.1 LSE 专属指令
[root@rk3528-openeuler22 dpdk]# objdump -d build/app/dpdk-testpmd | grep -E "\bldadd\b|\bcasal\b|\bswpal\b|\bstadd\b"
  5b375c:       f8210086        ldadd   x1, x6, [x4]
  5b48b8:       f8210064        ldadd   x1, x4, [x3]
  5b57c8:       b8230021        ldadd   w3, w1, [x1]
  5bd14c:       f8ff8001        swpal   xzr, x1, [x0]
  5cbd38:       f8e08020        swpal   x0, x0, [x1]

其他SHELL 不受影响，CPU标志 维持原样

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Welcome to 6.1.141-rk35xx-ophub

System information as of time:  Mon May 25 08:08:44 AM CST 2026

System load:    0.58
Memory used:    41.5%
Swap used:      5.6%
Usage On:       25%
IP address:     192.168.1.1
IP address:     192.168.10.34
Users online:   10


conan remote disable
[root@rk3528-openeuler22 ~]# lscpu
Architecture:                aarch64
  CPU op-mode(s):            32-bit, 64-bit
  Byte Order:                Little Endian
CPU(s):                      4
  On-line CPU(s) list:       0-3
Vendor ID:                   ARM
  Model name:                Cortex-A53
    Model:                   4
    Thread(s) per core:      1
    Core(s) per cluster:     4
    Socket(s):               -
    Cluster(s):              1
    Stepping:                r0p4
    CPU max MHz:             2016.0000
    CPU min MHz:             408.0000
    BogoMIPS:                48.00
    Flags:                   fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
Vulnerabilities:
  Gather data sampling:      Not affected
  Indirect target selection: Not affected
  Itlb multihit:             Not affected
  L1tf:                      Not affected
  Mds:                       Not affected
  Meltdown:                  Not affected
  Mmio stale data:           Not affected
  Reg file data sampling:    Not affected
  Retbleed:                  Not affected
  Spec rstack overflow:      Not affected
  Spec store bypass:         Not affected
  Spectre v1:                Mitigation; __user pointer sanitization
  Spectre v2:                Not affected
  Srbds:                     Not affected
  Tsx async abort:           Not affected
[root@rk3528-openeuler22 ~]# cat /sys/devices/system/cpu/cpu0/regs/identification/midr_el1
0x00000000410fd034
[root@rk3528-openeuler22 ~]# cat /proc/cpuinfo
processor       : 0
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 1
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 2
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

processor       : 3
BogoMIPS        : 48.00
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

Serial          : 0000000000000000
[root@rk3528-openeuler22 ~]#