【求问】如何加载Guest VM？

## 【问题】启动守护进程后应该如何操作以启动Guest VM？
以及是否需要将Guest VM的启动镜像装载到rust-shyper自身所使用的磁盘（在我这里是qemu所使用的vm0.img磁盘映像文件）中的特定位置，并在配置文件里指向该位置？

## 【详细描述】
在64位windows平台上编译 rust-shyper，使用`make qemu`指令编译。
所使用的rootfs是自己在WSL中编译得到的vm0.img。
在Windows Powershell中，按照`make run`中的qemu指令来启动rust-shyper，登录后依次执行以下代码
```
insmod tools/shyper.ko
tools/shyper system daemon tools/mediated-cfg.json &

tools/shyper vm config tools/vm1_config_console.json
```
结果最后一步出错。尝试将镜像放到各个位置，无果。

## 【补充信息】
vm0.img中，`/tools/mediated-cfg.json`配置为`/dev/vda`；
所用的vm1_config_console.json`是项目根目录下的那个文件，
仅改动第六行为`"kernel_filename": "/image/Image_vanilla",`；
已经把`Image_vanilla`放在vm0.img的`/image/`下。

## 【命令行输出】
```
(base) PS D:\Documents\OS\rust_shyper-master> qemu-system-aarch64 -machine virt,virtualization=on,gic-version=2 `
>>     -m 8g -cpu cortex-a57 -smp 4 `
>>     -display none `
>>     -global virtio-mmio.force-legacy=false `
>>     -kernel target/aarch64/release/rust_shyper.bin `
>>     -serial mon:stdio  `
>>     -netdev user,id=n0,hostfwd=tcp::5555-:22 `
>>     -device virtio-net-device,bus=virtio-mmio-bus.24,netdev=n0 `
>>     -drive file=vm0.img,if=none,format=raw,id=x0 `
>>     -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.25
Welcome to qemu rust_shyper 0.1.0!
Built at 2025-01-07 04:21:12 +08:00 by QuanQiuTong
Compiler: rustc 1.75.0-nightly (fdaaaf9f9 2023-11-08)
Features: "pl011, qemu"
Commit:
init buddy system, heap start from 412ce000 with size 4 MB
[I]>[core 0, rust_shyper::kernel::mem, src\kernel\mem.rs:52] Memory VM regions: total 1 region, size 7936 MB / 2031616 pages
[I]>[core 0, rust_shyper::kernel::mem, src\kernel\mem.rs:58] Memory VM regions init ok!
[I]>[core 0, rust_shyper::kernel::mem, src\kernel\mem.rs:23] Mem init ok
[I]>[core 0, rust_shyper::device::device_tree, src\device\device_tree.rs:72] fdt 0x48000000 has original size 1048576
[I]>[core 0, rust_shyper::device::device_tree, src\device\device_tree.rs:195] fdt patched size 12288
[W]>[core 0, rust_shyper::kernel::iommu, src\kernel\iommu.rs:23] Platform not support IOMMU
[I]>[core 2, rust_shyper, src\lib.rs:215] secondary core 0x80000002 init
[I]>[core 3, rust_shyper, src\lib.rs:215] secondary core 0x80000003 init
[I]>[core 1, rust_shyper, src\lib.rs:215] secondary core 0x80000001 init
[I]>[core 0, rust_shyper::kernel::cpu, src\kernel\cpu.rs:295] Bring up 4 cores
[I]>[core 0, rust_shyper::kernel::cpu, src\kernel\cpu.rs:296] Cpu init ok
[I]>[core 0, rust_shyper, src\lib.rs:189] cpu init ok
[I]>[core 0, rust_shyper::kernel::interrupt, src\kernel\interrupt.rs:53] Interrupt init ok
[I]>[core 1, rust_shyper, src\lib.rs:218] secondary core 0x80000001 interrupt init
[I]>[core 2, rust_shyper, src\lib.rs:218] secondary core 0x80000002 interrupt init
[I]>[core 0, rust_shyper, src\lib.rs:192] interrupt init ok
[I]>[core 3, rust_shyper, src\lib.rs:218] secondary core 0x80000003 interrupt init
[I]>[core 0, rust_shyper::kernel::timer, src\kernel\timer.rs:41] Timer frequency: 62500000Hz
[I]>[core 1, rust_shyper::kernel::vcpu_array, src\kernel\vcpu_array.rs:98] cpu[1] init Round Robin Scheduler
[I]>[core 3, rust_shyper::kernel::vcpu_array, src\kernel\vcpu_array.rs:98] cpu[3] init Round Robin Scheduler
[I]>[core 2, rust_shyper::kernel::vcpu_array, src\kernel\vcpu_array.rs:98] cpu[2] init Round Robin Scheduler
[I]>[core 0, rust_shyper::kernel::timer, src\kernel\timer.rs:42] Timer init ok
[I]>[core 1, rust_shyper, src\lib.rs:222] [boot] sched init ok at core 0x80000001
[I]>[core 3, rust_shyper, src\lib.rs:222] [boot] sched init ok at core 0x80000003
[I]>[core 2, rust_shyper, src\lib.rs:222] [boot] sched init ok at core 0x80000002
[I]>[core 0, rust_shyper::kernel::vcpu_array, src\kernel\vcpu_array.rs:98] cpu[0] init Round Robin Scheduler
[I]>[core 0, rust_shyper, src\lib.rs:196] sched init ok
[I]>[core 1, rust_shyper::kernel::cpu, src\kernel\cpu.rs:307] [idle] prepare to idle...
[I]>[core 2, rust_shyper::kernel::cpu, src\kernel\cpu.rs:307] [idle] prepare to idle...
[I]>[core 3, rust_shyper::kernel::cpu, src\kernel\cpu.rs:307] [idle] prepare to idle...
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:535]
Successfully add MVM[0] name "supervisor", currently vm_num 1
[I]>[core 0, rust_shyper::vmm::manager, src\vmm\manager.rs:56] vmm_push_vm: add vm 0 on cpu 0
[I]>[core 0, rust_shyper::kernel::vm, src\kernel\vm.rs:207] VM[0] phys_id_list [0]
[I]>[core 0, rust_shyper::kernel::vm, src\kernel\vm.rs:302] VM 0 registers emulated device: id=<0>, name="EmuDeviceTGicd", ipa=<0x8000000>
[I]>[core 0, rust_shyper::kernel::vm, src\kernel\vm.rs:302] VM 0 registers emulated device: id=<1>, name="EmuDeviceTVirtioNet", ipa=<0xa001000>
[I]>[core 0, rust_shyper::kernel::vm, src\kernel\vm.rs:302] VM 0 registers emulated device: id=<2>, name="EmuDeviceTVirtioConsole", ipa=<0xa002000>
[I]>[core 0, rust_shyper::kernel::ivc, src\kernel\ivc.rs:62] vm shyper base ipa 0, len 0
[I]>[core 0, rust_shyper::kernel::vm, src\kernel\vm.rs:302] VM 0 registers emulated device: id=<3>, name="EmuDeviceTShyper", ipa=<0x0>
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:647] VM 0 init cpu: cores=<1>, allocat_bits=<0b1>
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:681] * Core 0 is assigned => vm 0, vcpu 0
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:669] vmm_init_cpu: VM [0] is ready
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:76] VM 0 memory region: ipa=<0x50000000>, pa=<0x50000000>, size=<0x80000000>
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:86] successfully add a region!
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:190] MVM 0 loading Image
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:102] VM 0 loads kernel: ipa=<0x80080000>, pa=<0x80080000>, size=<14180K>
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:555] apply aarch64
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:555] apply aarch64
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:569] fdt add vm_service irq = 64
[I]>[core 0, rust_shyper::vmm::init, src\vmm\init.rs:642] VM 0 id supervisor init ok
[I]>[core 0, rust_shyper, src\lib.rs:202] rust_shyper Hypervisor init ok

Start booting Monitor VM ...

...（省略）...

OK

Welcome to Buildroot
buildroot login: root
Password:
# cd /
# insmod tools/
mediated-cfg.json        shyper.ko                vm1_config_console.json
shyper                   vm1.img
# insmod tools/shyper.ko
[   44.268273] shyper: loading out-of-tree module taints kernel.
[   44.275910] [Shyper MOD INFO] Init shyper service
[   44.277133] [Shyper MOD INFO] major 240 minor 0[   44.279652] [Shyper MOD INFO] VM [0] is installing kernel module
[   44.280632] [Shyper MOD INFO] register irq success, irq_id is 5
[   44.282171] [Shyper MOD INFO] handle_hvc_ivc in kernel module: event is 0x00000000
[   44.285932] [Shyper MOD INFO] [HVC_IVC_UPDATE_MQ] get vmid 0
[   44.287175] [Shyper MOD INFO] start to register misc device for shared mem
[E]>[core 0, rust_shyper::kernel::hvc, src\kernel\hvc.rs:332] not support vm migration and live update
[E]>[core 0, rust_shyper::kernel::hvc, src\kernel\hvc.rs:332] not support vm migration and live update
[E]>[core 0, rust_shyper::kernel::hvc, src\kernel\hvc.rs:332] not support vm migration and live update
[E]>[core 0, rust_shyper::kernel::hvc, src\kernel\hvc.rs:332] not support vm migration and live update
[E]>[core 0, rust_shyper::kernel::hvc, src\kernel\hvc.rs:332] not support vm migration and live update
[E]>[core 0, rust_shyper::kernel::hvc, src\kernel\hvc.rs:332] not support vm migration and live update
# [   78.677775] random: fast init done

# cat > tools/mediated-cfg.json << EOF
> {
>     "mediated": [
>         "/dev/vda"
>     ]
> }
> EOF
# tools/shyper system daemon tools/mediated-cfg.json &
# [1970-01-01T00:01:37Z INFO  shyper_cli_rust::daemon] Start Shyper-cli daemon configure
[1970-01-01T00:01:37Z INFO  shyper_cli_rust::blk] Shyper daemon add blk /dev/vda with 0 sectors
[1970-01-01T00:01:37Z INFO  shyper_cli_rust::daemon] daemon configure 1 mediated disk(s)
[1970-01-01T00:01:37Z INFO  shyper_cli_rust::daemon] daemon configuration finished
[1970-01-01T00:01:37Z INFO  shyper_cli_rust::daemon] VM[0] start to init blk service

[1970-01-01T00:01:37Z INFO  shyper_cli_rust::blk] Shyper daemon init blk MEDBLK0 with cache size 33554432
[1970-01-01T00:01:37Z INFO  shyper_cli_rust::blk] Shyper daemon init blk MEDBLK0 va 0x400000000000 with cache pa 0xc8000000
[I]>[core 0, rust_shyper::device::virtio::mediated, src\device\virtio\mediated.rs:196] mediated_dev_append: dev_ipa_reg 0xca203000, cache ipa 0xc8000000, cache_pa 0xc8000000, dma_block_max 0x10000
[1970-01-01T00:01:37Z INFO  shyper_cli_rust::blk] Shyper daemon init blk MEDBLK0 success
[1970-01-01T00:01:37Z INFO  shyper_cli_rust::daemon] VM[0] daemon process init success

[   97.313757] random: shyper: uninitialized urandom read (16 bytes read)

# ps aux | grep shyper
 1128 root     tools/shyper system daemon tools/mediated-cfg.json
 1133 root     grep shyper
# tools/shyper vm config tools/vm1_config_console.json
Parse VM config successfully, VM name [guest-os-1]
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:580]

Start to prepare configuration for new VM
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:535]
Successfully add GVM[1] name "guest-os-1", currently vm_num 2
[1970-01-01T00:12:59Z INFO  shyper_cli_rust::config] Send VM [1] config successfully
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:631]
VM[1] vm_cfg_add_mem_region: add region start_ipa 80000000 length 40000000
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:644]
VM[1] vm_cfg_set_cpu: num 1 allocate_bitmap 2 master Some(1)
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:698]
VM[1] vm_cfg_add_emu_dev: ori emu dev num 0
    name "intc@fe600000"
     cfg_list [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
     base ipa fe600000 length 10000 irq_id 0 emu_type 1
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:698]
VM[1] vm_cfg_add_emu_dev: ori emu dev num 1
    name "GICR@fe680000"
     cfg_list [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
     base ipa fe680000 length 100000 irq_id 0 emu_type 11
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:698]
VM[1] vm_cfg_add_emu_dev: ori emu dev num 2
    name "virtio_blk@f0020000"
     cfg_list [0, 8192000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
     base ipa f0020000 length 1000 irq_id 498 emu_type 7
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:698]
VM[1] vm_cfg_add_emu_dev: ori emu dev num 3
    name "virtio_net@f0000000"
     cfg_list [116, 86, 170, 15, 71, 209, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
     base ipa f0000000 length 1000 irq_id 499 emu_type 4
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:698]
VM[1] vm_cfg_add_emu_dev: ori emu dev num 4
    name "virtio_console@f0040000"
     cfg_list [0, 4026597376, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
     base ipa f0040000 length 10000 irq_id 500 emu_type 5
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:758]
VM[1] vm_cfg_add_pt_dev:
     base_ipa feb50000 base_pa feb50000 length 1000
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:773]
VM[1] vm_cfg_add_pt_dev irqs:
     base_ipa ca20fbc0 length 1
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:853]
VM[1] vm_cfg_add_dtb_dev:
     dev_type 1 irq_list_length 0 addr_region_ipa fe600000 addr_region_length 2
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:853]
VM[1] vm_cfg_add_dtb_dev:
     dev_type 3 irq_list_length 0 addr_region_ipa fe680000 addr_region_length 2
[1970-01-01T00:12:59Z ERROR shyper_cli_rust::config] Config VM [1] failed: failed to copy device tree - to memory
[  780.103628] [Shyper MOD INFO] enter hvc_config_delete_vm() vm_id 1
[I]>[core 0, rust_shyper::config::config, src\config\config.rs:622] VM[1] delete config entry
[  780.106474] [Shyper MOD WARNING] failed to find VM[1] kernel image info in list
[  780.109081] [Shyper MOD WARNING] [hvc_fid: 0x00000011, event: 0x00000001]: handle hvc failed[1970-01-01T00:13:00Z ERROR shyper_cli_rust::config] Failed to delete VM[1] config
[1970-01-01T00:13:00Z ERROR shyper_cli_rust] Add vm failed: failed to copy device tree - to memory

【p.s.】
我也尝试过向dev/vda写入镜像文件；
或者将mediated-cfg配置为另一个img，该img内含Image_vanilla；
这两个尝试均失败。

openEuler/rust_shyper

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