qemu-system-aarch64 -M virt,gic-version=3 -m 1G -cpu cortex-a57 -nographic \
-append 'maxcpus=3' -smp 4 \
-kernel zImage \
-initrd *.rootfs.cpio.gz \
-dtb qemu_mcs.dtb

####qemu中

echo "1 4 1 7" > /proc/sys/kernel/printk
modprobe mcs_km.ko
cat /proc/iomem
rpmsg_main -c 3 -t /lib/firmware/zephyr-image.bin -a 0x7a000000

qemu-aarch64 /home # cd ~
qemu-aarch64 ~ # echo "1 4 1 7" > /proc/sys/kernel/printk
qemu-aarch64 ~ # modprobe mcs_km.ko
qemu-aarch64 ~ # cat /proc/iomem
09000000-09000fff : pl011@9000000
  09000000-09000fff : 9000000.pl011 pl011@9000000
09010000-09010fff : pl031@9010000
  09010000-09010fff : rtc-pl031
09030000-09030fff : pl061@9030000
  09030000-09030fff : 9030000.pl061 pl061@9030000
0a003e00-0a003fff : a003e00.virtio_mmio virtio_mmio@a003e00
10000000-3efeffff : pcie@10000000
  10000000-1003ffff : 0000:00:01.0
  10040000-10040fff : 0000:00:01.0
40000000-6fffffff : System RAM
  40200000-409dffff : Kernel code
  409e0000-40a5ffff : reserved
  40a60000-40c3ffff : Kernel data
  48000000-490b8fff : reserved
  49200000-49209fff : reserved
70000000-700fffff : reserved
70100000-79ffffff : System RAM
7a000000-7dffffff : reserved
  7a000000-7dffffff : mcs_mem
7e000000-7fffffff : System RAM
  7e000000-7effffff : reserved
  7fdd0000-7ff74fff : reserved
  7ff75000-7ffe4fff : reserved
  7ffe7000-7ffe7fff : reserved
  7ffe8000-7ffeafff : reserved
  7ffeb000-7fff7fff : reserved
  7fff8000-7fffffff : reserved
4010000000-401fffffff : PCI ECAM
8000000000-ffffffffff : pcie@10000000
  8000000000-8000003fff : 0000:00:01.0
    8000000000-8000003fff : virtio-pci-modern
qemu-aarch64 ~ # rpmsg_main -c 3 -t /lib/firmware/zephyr-image.bin -a 0x7a000000
cpu:3, ld:7a000000, entry:7a000000, path:/lib/firmware/zephyr-image.bin
mmap failed: sh_mem_addr:0xffffffffffffffff
failed to init reserved mem
openamp init failed: -1

qemu-aarch64 ~ # dmesg
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x411fd070]
[    0.000000] Linux version 5.10.0-openeuler (oe-user@oe-host) (aarch64-openeuler-linux-gnu-gcc (crosstool-NG 1.25.0) 10.3.1, GNU ld (crosstool-NG 1.25.0) 2.37) #1 SMP PREEMPT Thu Sep 14 06:23:19 UTC 2023
[    0.000000] Machine model: linux,dummy-virt
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at 0x0000000070000000, size 1 MiB
[    0.000000] OF: reserved mem: initialized node client_os-dma-memory@70000000, compatible id shared-dma-pool
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000040000000-0x000000007fffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x000000006fffffff]
[    0.000000]   node   0: [mem 0x0000000070000000-0x00000000700fffff]
[    0.000000]   node   0: [mem 0x0000000070100000-0x0000000079ffffff]
[    0.000000]   node   0: [mem 0x000000007a000000-0x000000007dffffff]
[    0.000000]   node   0: [mem 0x000000007e000000-0x000000007fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x000000007fffffff]
[    0.000000] On node 0 totalpages: 262144
[    0.000000]   DMA zone: 4096 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 262144 pages, LIFO batch:63
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv0.2 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: Trusted OS migration not required
[    0.000000] percpu: Embedded 28 pages/cpu s77784 r8192 d28712 u114688
[    0.000000] pcpu-alloc: s77784 r8192 d28712 u114688 alloc=28*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Detected PIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 832075
[    0.000000] CPU features: detected: GIC system register CPU interface
[    0.000000] CPU features: kernel page table isolation disabled by kernel configuration
[    0.000000] CPU features: detected: Spectre-v2
[    0.000000] CPU features: detected: Spectre-v4
[    0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923
[    0.000000] CPU features: detected: Spectre-BHB
[    0.000000] CPU features: detected: ARM erratum 1742098
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 258048
[    0.000000] Kernel command line: maxcpus=3
[    0.000000] printk: log_buf_len individual max cpu contribution: 4096 bytes
[    0.000000] printk: log_buf_len total cpu_extra contributions: 12288 bytes
[    0.000000] printk: log_buf_len min size: 16384 bytes
[    0.000000] printk: log_buf_len: 32768 bytes
[    0.000000] printk: early log buf free: 13848(84%)
[    0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 935748K/1048576K available (5824K kernel code, 800K rwdata, 2120K rodata, 512K init, 1067K bss, 112828K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] kmemleak: Kernel memory leak detector disabled
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: 224 SPIs implemented
[    0.000000] GICv3: 0 Extended SPIs implemented
[    0.000000] GICv3: Distributor has no Range Selector support
[    0.000000] GICv3: 16 PPIs implemented
[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x00000000080a0000
[    0.000000] ITS [mem 0x08080000-0x0809ffff]
[    0.000000] ITS@0x0000000008080000: allocated 8192 Devices @410b0000 (indirect, esz 8, psz 64K, shr 1)
[    0.000000] ITS@0x0000000008080000: allocated 8192 Interrupt Collections @410c0000 (flat, esz 8, psz 64K, shr 1)
[    0.000000] GICv3: using LPI property table @0x00000000410d0000
[    0.000000] GICv3: CPU0: using allocated LPI pending table @0x00000000410e0000
[    0.000000] rcu:     Offload RCU callbacks from CPUs: (none).
[    0.000000] arch_timer: cp15 timer(s) running at 62.50MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0x1ffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns
[    0.000489] sched_clock: 57 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns
[    0.019710] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=625000)
[    0.020136] pid_max: default: 32768 minimum: 301
[    0.026639] LSM: Security Framework initializing
[    0.028821] Yama: becoming mindful.
[    0.031267] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.031392] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.118097] /cpus/cpu-map: empty cluster
[    0.140069] rcu: Hierarchical SRCU implementation.
[    0.157202] Platform MSI: its@8080000 domain created
[    0.158370] PCI/MSI: /intc@8000000/its@8080000 domain created
[    0.161489] EFI services will not be available.
[    0.164866] smp: Bringing up secondary CPUs ...
[    0.175698] Detected PIPT I-cache on CPU1
[    0.177339] GICv3: CPU1: found redistributor 1 region 0:0x00000000080c0000
[    0.177677] GICv3: CPU1: using allocated LPI pending table @0x00000000410f0000
[    0.178479] CPU1: Booted secondary processor 0x0000000001 [0x411fd070]
[    0.193398] Detected PIPT I-cache on CPU2
[    0.193548] GICv3: CPU2: found redistributor 2 region 0:0x00000000080e0000
[    0.193843] GICv3: CPU2: using allocated LPI pending table @0x0000000041100000
[    0.194707] CPU2: Booted secondary processor 0x0000000002 [0x411fd070]
[    0.196023] smp: Brought up 1 node, 3 CPUs
[    0.196224] SMP: Total of 3 processors activated.
[    0.196327] CPU features: detected: 32-bit EL0 Support
[    0.196468] CPU features: detected: CRC32 instructions
[    0.208429] CPU: All CPU(s) started at EL1
[    0.209116] alternatives: patching kernel code
[    0.253532] devtmpfs: initialized
[    0.300727] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.301218] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.312561] pinctrl core: initialized pinctrl subsystem
[    0.317989] DMI not present or invalid.
[    0.324817] NET: Registered protocol family 16
[    0.340218] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
[    0.340703] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.341017] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.342106] audit: initializing netlink subsys (disabled)
[    0.346552] kworker/u8:0 (27) used greatest stack depth: 13216 bytes left
[    0.352989] audit: type=2000 audit(0.330:1): state=initialized audit_enabled=0 res=1
[    0.364986] cpuidle: using governor ladder
[    0.366497] cpuidle: using governor menu
[    0.370614] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.372898] ASID allocator initialised with 65536 entries
[    0.374405] Serial: AMBA PL011 UART driver
[    0.472374] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 47, base_baud = 0) is a PL011 rev1
[    0.504700] printk: console [ttyAMA0] enabled
[    0.623812] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.624212] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.624520] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.624820] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    0.678645] NetLabel: Initializing
[    0.678897] NetLabel:  domain hash size = 128
[    0.679146] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.684252] NetLabel:  unlabeled traffic allowed by default
[    0.691752] clocksource: Switched to clocksource arch_sys_counter
[    0.887619] VFS: Disk quotas dquot_6.6.0
[    0.888422] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.908697] NET: Registered protocol family 2
[    0.912539] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.931856] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear)
[    0.932714] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.933672] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear)
[    0.934513] TCP: Hash tables configured (established 8192 bind 8192)
[    0.938851] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.939751] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.943980] NET: Registered protocol family 1
[    0.945885] PCI: CLS 0 bytes, default 64
[    0.956504] Trying to unpack rootfs image as initramfs...
[    4.248742] Freeing initrd memory: 17120K
[    4.259922] hw perfevents: enabled with armv8_pmuv3 PMU driver, 5 counters available
[    4.280313] workingset: timestamp_bits=46 max_order=18 bucket_order=0
[    4.348207] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    4.348904] 9p: Installing v9fs 9p2000 file system support
[    4.354830] NET: Registered protocol family 38
[    4.355963] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248)
[    4.374330] pl061_gpio 9030000.pl061: PL061 GPIO chip registered
[    4.380605] pci-host-generic 4010000000.pcie: host bridge /pcie@10000000 ranges:
[    4.383494] pci-host-generic 4010000000.pcie:       IO 0x003eff0000..0x003effffff -> 0x0000000000
[    4.385239] pci-host-generic 4010000000.pcie:      MEM 0x0010000000..0x003efeffff -> 0x0010000000
[    4.385730] pci-host-generic 4010000000.pcie:      MEM 0x8000000000..0xffffffffff -> 0x8000000000
[    4.388377] pci-host-generic 4010000000.pcie: ECAM at [mem 0x4010000000-0x401fffffff] for [bus 00-ff]
[    4.391954] pci-host-generic 4010000000.pcie: PCI host bridge to bus 0000:00
[    4.392826] pci_bus 0000:00: root bus resource [bus 00-ff]
[    4.393361] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    4.393727] pci_bus 0000:00: root bus resource [mem 0x10000000-0x3efeffff]
[    4.394066] pci_bus 0000:00: root bus resource [mem 0x8000000000-0xffffffffff]
[    4.398596] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000
[    4.409093] pci 0000:00:01.0: [1af4:1000] type 00 class 0x020000
[    4.410187] pci 0000:00:01.0: reg 0x10: [io  0x0000-0x001f]
[    4.410531] pci 0000:00:01.0: reg 0x14: [mem 0x00000000-0x00000fff]
[    4.411021] pci 0000:00:01.0: reg 0x20: [mem 0x00000000-0x00003fff 64bit pref]
[    4.411817] pci 0000:00:01.0: reg 0x30: [mem 0x00000000-0x0003ffff pref]
[    4.422759] pci 0000:00:01.0: BAR 6: assigned [mem 0x10000000-0x1003ffff pref]
[    4.423932] pci 0000:00:01.0: BAR 4: assigned [mem 0x8000000000-0x8000003fff 64bit pref]
[    4.424565] pci 0000:00:01.0: BAR 1: assigned [mem 0x10040000-0x10040fff]
[    4.424962] pci 0000:00:01.0: BAR 0: assigned [io  0x1000-0x101f]
[    4.449403] virtio-pci 0000:00:01.0: enabling device (0000 -> 0003)
[    4.459379] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    4.585675] brd: module loaded
[    4.626762] loop: module loaded
[    4.683842] rtc-pl031 9010000.pl031: registered as rtc0
[    4.692972] 9pnet: Installing 9P2000 support
[    4.700430] registered taskstats version 1
[    4.816006] Freeing unused kernel memory: 512K
[    4.820204] Run /init as init process
[    4.820449]   with arguments:
[    4.820513]     /init
[    4.820577]   with environment:
[    4.820632]     HOME=/
[    4.820665]     TERM=linux
[    5.090743] mount (384) used greatest stack depth: 13168 bytes left
[    6.258955] rcS (398) used greatest stack depth: 13056 bytes left
[    6.570294] rcS (400) used greatest stack depth: 13008 bytes left
[   11.414530] 8021q: 802.1Q VLAN Support v1.8
[   11.716916] NET: Registered protocol family 17
[   12.146306] RPC: Registered named UNIX socket transport module.
[   12.146824] RPC: Registered udp transport module.
[   12.147056] RPC: Registered tcp transport module.
[   12.147305] RPC: Registered tcp NFSv4.1 backchannel transport module.
[   12.192937] modprobe (454) used greatest stack depth: 12816 bytes left
[   13.378823] FS-Cache: Loaded
[   14.895222] NET: Registered protocol family 10
[   14.920804] Segment Routing with IPv6
[   14.946526] modprobe (531) used greatest stack depth: 12688 bytes left
[   16.469440] ipip: IPv4 and MPLS over IPv4 tunneling driver
[   16.485102] modprobe (580) used greatest stack depth: 12320 bytes left
[   21.849093] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[   22.789705] SCSI subsystem initialized
[   23.666471] fuse: init (API version 7.33)
[   31.600182] random: dd: uninitialized urandom read (512 bytes read)
[   41.114157] ip (1020) used greatest stack depth: 12240 bytes left
[   42.114071] 8021q: adding VLAN 0 to HW filter on device eth0
[   48.681985] random: crng init done
[  132.561074] mcs_km: loading out-of-tree module taints kernel.
qemu-aarch64 ~ #