Basic framework of virtualization by jinwjinl · Pull Request #409 · vivoblueos/kernel

jinwjinl · 2026-05-08T03:44:28Z

Providing basic virtualization support for booting Linux. Add function "arch::aarch64::virt::virt_boot_linux()" and use

qemu-system-aarch64  -M virt,virtualization=on,gic-version=3 -cpu cortex-a53 -smp 8 -m 512M -chardev stdio,id=con,mux=on -serial chardev:con -global virtio-mmio.force-legacy=false -device virtio-rng-device,bus=virtio-mmio-bus.1 -mon chardev=con,mode=readline -drive file=/home/qiu_1189187/Project/blueos-dev/out/shell_test_qemu_virt64_aarch64/gen/apps/shell/shell_block.img,if=none,format=raw,id=hd -device virtio-blk-device,bus=virtio-mmio-bus.3,drive=hd -netdev user,id=u1,hostfwd=tcp:127.0.0.1:10024-10.0.2.15:23,hostfwd=tcp:127.0.0.1:15002-10.0.2.15:5001 -device virtio-net-device,netdev=u1,bus=virtio-mmio-bus.2 -kernel /home/qiu_1189187/Project/blueos-dev/out/shell_test_qemu_virt64_aarch64/bin/shell -nographic -semihosting -device loader,file=Image,addr=0x44000000 -device loader,file=guest.dtb,addr=0x4E000000

we can see:

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.15.202 (qiu_1189187@SZ-11189187) (aarch64-linux-gnu-gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, GNU ld (GNU Binutils for Ubuntu) 2.42) #13 SMP PREEMPT Thu Apr 23 15:14:57 CST 2026
[    0.000000] Machine model: linux,dummy-virt
[    0.000000] earlycon: pl11 at MMIO 0x0000000009000000 (options '')
[    0.000000] printk: bootconsole [pl11] enabled
[    0.000000] efi: UEFI not found.
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem 0x0000000044000000-0x000000004fffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x4ff98c00-0x4ff9afff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000044000000-0x000000004fffffff]
[    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 0x0000000044000000-0x000000004fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000044000000-0x000000004fffffff]
[    0.000000] On node 0, zone DMA: 16384 pages in unavailable ranges
[    0.000000] cma: Reserved 32 MiB at 0x000000004c000000
[    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
[EXIT] HVC#0: Ignored PSCI call: 0x84000006
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] percpu: Embedded 16 pages/cpu s35168 r0 d30368 u65536
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: GIC system register CPU interface
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 48384
[    0.000000] Policy zone: DMA
[    0.000000] Kernel command line: console=ttyAMA0 earlycon=pl011,0x09000000 root=/dev/ram0 rw
[    0.000000] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.000000] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off
[    0.000000] Memory: 140836K/196608K available (9216K kernel code, 902K rwdata, 3964K rodata, 3456K init, 301K bss, 23004K reserved, 32768K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=1.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[EXIT] Data Abort from Guest (Stage-2 Fault)
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[    0.000000] GICv3: 192 SPIs implemented
[    0.000000] GICv3: 0 Extended SPIs implemented
[EXIT] Data Abort from Guest (Stage-2 Fault)
[    0.000000] GICv3: Distributor has no Range Selector support
[    0.000000] Root IRQ handler: gic_handle_irq
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[    0.000000] GICv3: 16 PPIs implemented
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[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x00000000080a0000
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[    0.000000] arch_timer: cp15 timer(s) running at 62.50MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns
[    0.000070] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns
[    0.009121] Console: colour dummy device 80x25
[    0.011748] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=250000)
[    0.012087] pid_max: default: 32768 minimum: 301
[    0.013182] Mount-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.013414] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.041999] rcu: Hierarchical SRCU implementation.
[    0.044026] EFI services will not be available.
[    0.044645] smp: Bringing up secondary CPUs ...
[    0.044857] smp: Brought up 1 node, 1 CPU
[    0.045273] SMP: Total of 1 processors activated.
[    0.045691] CPU features: detected: 32-bit EL0 Support
[    0.045968] CPU features: detected: CRC32 instructions
[    0.109361] CPU: All CPU(s) started at EL1
[    0.109824] alternatives: patching kernel code
[    0.123081] devtmpfs: initialized
[    0.128017] KASLR disabled due to lack of seed
[    0.129423] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.130617] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[    0.133208] pinctrl core: initialized pinctrl subsystem
[    0.142478] DMI not present or invalid.
[    0.149616] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
[    0.150162] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.151106] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.156983] thermal_sys: Registered thermal governor 'step_wise'
[    0.157023] thermal_sys: Registered thermal governor 'power_allocator'
[    0.158309] cpuidle: using governor menu
[    0.188303] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.189933] ASID allocator initialised with 65536 entries
[    0.192574] Serial: AMBA PL011 UART driver
[    0.200357] 9000000.uart: ttyAMA0 at MMIO 0x9000000 (irq = 13, base_baud = 0) is a PL011 rev1
[    0.201382] printk: console [ttyAMA0] enabled
[    0.201382] printk: console [ttyAMA0] enabled
[    0.201689] printk: bootconsole [pl11] disabled
[    0.201689] printk: bootconsole [pl11] disabled
[    0.232194] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.232400] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.232604] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.232715] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    0.984820] cryptd: max_cpu_qlen set to 1000
[    1.066487] DRBG: Continuing without Jitter RNG
[    1.104912] ACPI: Interpreter disabled.
[    1.106489] iommu: Default domain type: Translated
[    1.106716] iommu: DMA domain TLB invalidation policy: strict mode
[    1.107714] vgaarb: loaded
[    1.108903] SCSI subsystem initialized
[    1.110522] pps_core: LinuxPPS API ver. 1 registered
[    1.110728] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    1.111917] EDAC MC: Ver: 3.0.0
[    1.113701] FPGA manager framework
[    1.116366] clocksource: Switched to clocksource arch_sys_counter
[    1.118126] pnp: PnP ACPI: disabled
[    1.132884] PCI: CLS 0 bytes, default 64
[    1.144979] workingset: timestamp_bits=42 max_order=16 bucket_order=0
[    1.158571] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    1.164420] fuse: init (API version 7.34)
[    1.185024] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    1.185383] io scheduler mq-deadline registered
[    1.185555] io scheduler kyber registered
[    1.249750] IPMI message handler: version 39.2
[    1.250044] ipmi device interface
[    1.251150] ipmi_si: IPMI System Interface driver
[    1.251744] ipmi_si: Unable to find any System Interface(s)
[    1.257193] EINJ: ACPI disabled.
[    1.266915] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    1.282461] cacheinfo: Unable to detect cache hierarchy for CPU 0
[    1.307661] loop: module loaded
[    1.309860] megasas: 07.717.02.00-rc1
[    1.310589] mpt3sas version 39.100.00.00 loaded
[    1.317406] VFIO - User Level meta-driver version: 0.3
[    1.320222] i2c_dev: i2c /dev entries driver
[    1.323496] device-mapper: ioctl: 4.45.0-ioctl (2021-03-22) initialised: dm-devel@redhat.com
[    1.328397] SPI driver st-magn-spi has no spi_device_id for st,lis3mdl-magn
[    1.328757] SPI driver st-magn-spi has no spi_device_id for st,lsm303agr-magn
[    1.328950] SPI driver st-magn-spi has no spi_device_id for st,lsm9ds1-magn
[    1.329970] gnss: GNSS driver registered with major 237
[    1.333860] clk: Disabling unused clocks
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[EXIT] Data Abort from Guest (Stage-2 Fault)
[    1.404855] Freeing unused kernel memory: 3456K
[    1.408860] Run /init as init process
~ # poweroff
~ # umount: can't unmount /: Invalid argument
The system is going down NOW!
Sent SIGTERM to all processes
Sent SIGKILL to all processes
Requesting system poweroff
[    9.096015] reboot: Power down
Linux shutdown!!!
Hello, shell!
>

using Linux-5.15.202 and close unrelated configuration.
test device tree:

/dts-v1/;

/ {
    interrupt-parent = <&gic>;
    #address-cells = <2>;
    #size-cells = <2>;
    compatible = "linux,dummy-virt";

    cpus {
        #address-cells = <1>;
        #size-cells = <0>;
        cpu@0 {
            device_type = "cpu";
            compatible = "arm,armv8";
            reg = <0x0>;
            enable-method = "psci";
        };
    };

    memory@44000000 {
        device_type = "memory";
        reg = <0x0 0x44000000 0x0 0x0c000000>;
    };

    gic: interrupt-controller@8000000 {
        compatible = "arm,gic-v3";
        #interrupt-cells = <3>;
        interrupt-controller;
        reg = <0x0 0x08000000 0x0 0x00010000>,  /* VGICD */
              <0x0 0x080a0000 0x0 0x00f60000>; /* VGICR */
    };

    timer {
        compatible = "arm,armv8-timer";
        interrupts = <1 13 0xf08>,
                     <1 14 0xf08>,
                     <1 11 0xf08>,
                     <1 10 0xf08>;
    };

    uart0: uart@9000000 {
        compatible = "arm,pl011", "arm,primecell";
        reg = <0x0 0x09000000 0x0 0x1000>;
        interrupts = <0 1 4>;
        clocks = <&clk24m>;
        clock-names = "apb_pclk";
    };

    clk24m: clk24m {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <24000000>;
        clock-output-names = "v2m:clk24m";
    };

    chosen {
        stdout-path = "/uart@9000000";
        bootargs = "console=ttyAMA0 earlycon=pl011,0x09000000 root=/dev/ram0 rw";
    };

    psci {
        compatible = "arm,psci-0.2";
        method = "smc";
        cpu_suspend = <0xC4000001>;
        cpu_off = <0x84000002>;
        cpu_on = <0xC4000003>;
        system_off = <0x84000008>;
        system_reset = <0x84000009>;
    };
};

jinwjinl · 2026-05-08T03:45:01Z

build_prs

github-actions · 2026-05-08T03:46:24Z

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/25535483316.

github-actions · 2026-05-08T03:49:00Z

❌ Job failed. Failed jobs: build_and_check_boards (failure), see https://github.com/vivoblueos/kernel/actions/runs/25535483316.

jinwjinl · 2026-05-08T06:20:46Z

build_prs

github-actions · 2026-05-08T06:22:10Z

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/25540440444.

github-actions · 2026-05-08T06:26:13Z

❌ Job failed. Failed jobs: build_and_check_boards (failure), see https://github.com/vivoblueos/kernel/actions/runs/25540440444.

jinwjinl · 2026-05-08T06:29:27Z

build_prs

github-actions · 2026-05-08T06:30:46Z

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/25540764380.

github-actions · 2026-05-08T06:43:27Z

✅ All jobs completed successfully, see https://github.com/vivoblueos/kernel/actions/runs/25540764380.

han-jiang277 · 2026-05-22T00:42:29Z

Code review

Found 2 issues:

Double ICC_EOIR1_EL1 write in hyper_trap_irq causes architecturally unpredictable GICv3 priority drop — For intid == 27 (vTimer), ICC_EOIR1_EL1 is written inside the else if branch (line 86) and then again unconditionally at line 101. With EOImode=1 (split priority drop / deactivate, set at line 46), the second write performs a priority drop with no matching active interrupt. Similarly, the else branch writes ICC_EOIR1_EL1 at line 95, then hits the unconditional write again. Per ARM IHI 0069H, this is architecturally unpredictable and can corrupt the running priority register state.

kernel/kernel/src/arch/aarch64/virt/mod.rs

Lines 83 to 104 in 9b7f60a

    
               } 
        
               unsafe { 
        
                   core::arch::asm!("msr ICC_EOIR1_EL1, {}", in(reg) iar); 
        
               } 
        
           } else { 
        
               #[cfg(test)] 
        
               semihosting::println!("[EL2] Unhandled Guest IRQ: {}", intid); 
        
               // For uninterruptible/unknown interrupts, 
        
               // we must manually downgrade and deactivate them; 
        
               // otherwise, the interrupt line will be permanently blocked. 
        
               unsafe { 
        
                   core::arch::asm!("msr ICC_EOIR1_EL1, {}", in(reg) iar); 
        
                   core::arch::asm!("msr ICC_DIR_EL1, {}", in(reg) iar); 
        
               } 
        
           } 
        
           unsafe { 
        
               core::arch::asm!("msr ICC_EOIR1_EL1, {}", in(reg) iar); 
        
           } 
        
           if let Some(vcpu_id) = get_current_vcpu_id() {

SPSR_EL2 bitfield SP and M overlap at bit [0] — SP is defined at OFFSET(0) NUMBITS(1) (line 61) and M at OFFSET(0) NUMBITS(4) (line 67). In the ARM ARM, SPSR_EL2.M[3:0] is a single 4-bit field where bit [0] encodes the stack pointer selection as part of the mode encoding — there is no independent SP bit. Using these overlapping fields together via the tock_registers API (e.g., write(M::EL1t + SP::EL2)) would silently corrupt the M field.

kernel/kernel/src/arch/aarch64/registers/spsr_el2.rs

Lines 57 to 75 in 9b7f60a

    
                   /// Stack Pointer selection. 
        
                   /// 0: Use SP_EL0 
        
                   /// 1: Use SP_EL2 
        
                   SP OFFSET(0) NUMBITS(1) [ 
        
                       EL0 = 0, 
        
                       EL2 = 1 
        
                   ], 
        
                   /// Mode/Execution state. 
        
                   M OFFSET(0) NUMBITS(4) [ 
        
                       EL0t = 0b0000, 
        
                       EL1t = 0b0100, 
        
                       EL1h = 0b0101, 
        
                       EL2t = 0b1000, 
        
                       EL2h = 0b1001 
        
                   ] 
        
               ] 
        
           }

🤖 Generated with Claude Code

…anwhile rebase main branch.

jinwjinl · 2026-05-29T08:17:35Z

build_prs

github-actions · 2026-05-29T08:18:59Z

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/26626368424.

github-actions · 2026-05-29T08:21:23Z

❌ Job failed. Failed jobs: check_format (failure), build_and_check_boards (failure), see https://github.com/vivoblueos/kernel/actions/runs/26626368424.

jinwjinl · 2026-05-29T10:13:03Z

build_prs

github-actions · 2026-05-29T10:14:18Z

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/26631492288.

github-actions · 2026-05-29T10:21:24Z

❌ Job failed. Failed jobs: build_and_check_boards (failure), see https://github.com/vivoblueos/kernel/actions/runs/26631492288.

jinwjinl · 2026-05-29T10:25:32Z

build_prs

github-actions · 2026-05-29T10:26:53Z

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/26632022283.

github-actions · 2026-05-29T10:36:58Z

❌ Job failed. Failed jobs: build_and_check_boards (failure), see https://github.com/vivoblueos/kernel/actions/runs/26632022283.

jinwjinl · 2026-05-29T10:39:38Z

build_prs

github-actions · 2026-05-29T10:40:57Z

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/26632613712.

github-actions · 2026-05-29T10:53:00Z

✅ All jobs completed successfully, see https://github.com/vivoblueos/kernel/actions/runs/26632613712.

jinwjinl · 2026-05-29T10:58:06Z

new dts

/dts-v1/;

/ {
    interrupt-parent = <&gic>;
    #address-cells = <2>;
    #size-cells = <2>;
    compatible = "linux,dummy-virt";

    cpus {
        #address-cells = <1>;
        #size-cells = <0>;
        cpu@0 {
            device_type = "cpu";
            compatible = "arm,armv8";
            reg = <0x0>;
            enable-method = "psci";
        };
    };

    memory@44000000 {
        device_type = "memory";
        reg = <0x0 0x44000000 0x0 0x0c000000>;
    };

    gic: interrupt-controller@8000000 {
        compatible = "arm,gic-v3";
        #interrupt-cells = <3>;
        interrupt-controller;
        reg = <0x0 0x08000000 0x0 0x00010000>,  /* VGICD */
              <0x0 0x080a0000 0x0 0x00f60000>; /* VGICR */
    };

    timer {
        compatible = "arm,armv8-timer";
        interrupts = <1 13 0xf08>,
                     <1 14 0xf08>,
                     <1 11 0xf08>,
                     <1 10 0xf08>;
    };

    uart0: uart@8f00000 {
        compatible = "arm,pl011", "arm,primecell";
        reg = <0x0 0x08f00000 0x0 0x1000>;
        // interrupts = <0 1 4>;
        status = "disabled";
        clocks = <&clk24m>;
        clock-names = "apb_pclk";
    };

    virtio_mmio@a000000 {
        compatible = "virtio,mmio";
        reg = <0x0 0x0a000000 0x0 0x200>;
        interrupts = <0 16 4>;
    };

    clk24m: clk24m {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <24000000>;
        clock-output-names = "v2m:clk24m";
    };

    chosen {
        bootargs = "console=hvc0 earlycon=pl011,0x08F00000 root=/dev/ram0 rw";
    };

    psci {
        compatible = "arm,psci-0.2";
        method = "smc";
        cpu_suspend = <0xC4000001>;
        cpu_off = <0x84000002>;
        cpu_on = <0xC4000003>;
        system_off = <0x84000008>;
        system_reset = <0x84000009>;
    };
};

Before synchronzing mmu, we can see:

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.15.202 (qiu_1189187@SZ-11189187) (aarch64-linux-gnu-gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, GNU ld (GNU Binutils for Ubuntu) 2.42) #13 SMP PREEMPT Thu Apr 23 15:14:57 CST 2026
[    0.000000] Machine model: linux,dummy-virt
[    0.000000] earlycon: pl11 at MMIO 0x0000000008f00000 (options '')
[    0.000000] printk: bootconsole [pl11] enabled
[    0.000000] efi: UEFI not found.
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem 0x0000000044000000-0x000000004fffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x4ff98c00-0x4ff9afff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000044000000-0x000000004fffffff]
[    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 0x0000000044000000-0x000000004fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000044000000-0x000000004fffffff]
[    0.000000] On node 0, zone DMA: 16384 pages in unavailable ranges
[    0.000000] cma: Reserved 32 MiB at 0x000000004c000000
[    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 16 pages/cpu s35168 r0 d30368 u65536
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: GIC system register CPU interface
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 48384
[    0.000000] Policy zone: DMA
[    0.000000] Kernel command line: console=hvc0 earlycon=pl011,0x08F00000 root=/dev/ram0 rw
[    0.000000] Dentry cache hash table entries: 32768 (order: 6, 262144 bytes, linear)
[    0.000000] Inode-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off
[    0.000000] Memory: 140832K/196608K available (9216K kernel code, 902K rwdata, 3964K rodata, 3456K init, 301K bss, 23008K reserved, 32768K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=1.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: 192 SPIs implemented
[    0.000000] GICv3: 0 Extended SPIs implemented
[    0.000000] GICv3: Distributor has no Range Selector support
[    0.000000] Root IRQ handler: gic_handle_irq
[    0.000000] GICv3: 16 PPIs implemented
[    0.000000] GICv3: CPU0: found redistributor 0 region 0:0x00000000080a0000
[    0.000000] arch_timer: cp15 timer(s) running at 62.50MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns: 881590405314 ns
[    0.000059] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 4398046511096ns
[    0.012281] Console: colour dummy device 80x25
[    0.016414] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=250000)
[    0.025280] pid_max: default: 32768 minimum: 301
[    0.030021] Mount-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.036073] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.066692] rcu: Hierarchical SRCU implementation.
[    0.071192] EFI services will not be available.
[    0.074218] smp: Bringing up secondary CPUs ...
[    0.076937] smp: Brought up 1 node, 1 CPU
[    0.079923] SMP: Total of 1 processors activated.
[    0.083140] CPU features: detected: 32-bit EL0 Support
[    0.087969] CPU features: detected: CRC32 instructions
[    0.157367] CPU: All CPU(s) started at EL1
[    0.162921] alternatives: patching kernel code
[    0.177948] devtmpfs: initialized
[    0.185778] KASLR disabled due to lack of seed
[    0.189244] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.196254] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[    0.202800] pinctrl core: initialized pinctrl subsystem
[    0.215238] DMI not present or invalid.
[    0.224597] DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
[    0.229502] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.234754] DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.242850] thermal_sys: Registered thermal governor 'step_wise'
[    0.242897] thermal_sys: Registered thermal governor 'power_allocator'
[    0.249986] cpuidle: using governor menu
[    0.258088] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.264622] ASID allocator initialised with 65536 entries
[    0.269978] Serial: AMBA PL011 UART driver
[    0.299948] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.305696] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.312716] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.319625] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    1.086463] cryptd: max_cpu_qlen set to 1000
[    1.168646] DRBG: Continuing without Jitter RNG
[    1.214712] ACPI: Interpreter disabled.
[    1.217775] iommu: Default domain type: Translated
[    1.221187] iommu: DMA domain TLB invalidation policy: strict mode
[    1.227135] vgaarb: loaded
[    1.229843] SCSI subsystem initialized
[    1.233188] pps_core: LinuxPPS API ver. 1 registered
[    1.237692] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    1.244022] EDAC MC: Ver: 3.0.0
[    1.247810] FPGA manager framework
[    1.254618] clocksource: Switched to clocksource arch_sys_counter
[    1.264551] pnp: PnP ACPI: disabled
[    1.283097] PCI: CLS 0 bytes, default 64
[    1.294971] workingset: timestamp_bits=42 max_order=16 bucket_order=0
[    1.324599] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    1.336292] fuse: init (API version 7.34)
[    1.367336] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    1.378924] io scheduler mq-deadline registered
[    1.381560] io scheduler kyber registered
[    1.416103] IPMI message handler: version 39.2
[    1.422949] ipmi device interface
[    1.431064] ipmi_si: IPMI System Interface driver
[    1.434035] ipmi_si: Unable to find any System Interface(s)
[    1.442272] EINJ: ACPI disabled.
[    1.456192] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    1.477678] printk: console [hvc0] enabled
[    1.481373] printk: bootconsole [pl11] disabled
[    1.489820] cacheinfo: Unable to detect cache hierarchy for CPU 0
[    1.506799] loop: module loaded
[    1.508965] megasas: 07.717.02.00-rc1
[    1.509886] mpt3sas version 39.100.00.00 loaded
[    1.516000] VFIO - User Level meta-driver version: 0.3
[    1.519398] i2c_dev: i2c /dev entries driver
[    1.523346] device-mapper: ioctl: 4.45.0-ioctl (2021-03-22) initialised: dm-devel@redhat.com
[    1.528747] SPI driver st-magn-spi has no spi_device_id for st,lis3mdl-magn
[    1.529474] SPI driver st-magn-spi has no spi_device_id for st,lsm303agr-magn
[    1.530170] SPI driver st-magn-spi has no spi_device_id for st,lsm9ds1-magn
[    1.532076] gnss: GNSS driver registered with major 236
[    1.536994] clk: Disabling unused clocks
[    1.607663] Freeing unused kernel memory: 3456K
[    1.613020] Run /init as init process
~ # poweroff
~ # umount: can't unmount /: Invalid argument
The system is going down NOW!
Sent SIGTERM to all processes
Sent SIGKILL to all processes
Requesting system poweroff
[    6.105665] reboot: Power down
Linux shutdown!!!
Hello, shell!
> ls
dev/
fat/
proc/
> cd fat
> ls
> cd ../proc
> ls
1077388448/
1077395264/
1077435232/
1077439552/
1077443872/
1077448192/
1077452512/
1077456832/
1077461152/
1077465472/
1078871440/
meminfo
stat
>

jinwjinl added 3 commits May 8, 2026 10:39

first verion for virt frame

11c014c

Finish basic framework to boot linux

5b8c3a8

Change for rabase

409913f

Change semihosting to conditional compilation

c707ae9

Change semihosting to conditional compilation

9b7f60a

jinwjinl and others added 6 commits May 22, 2026 14:40

finish basic virtio framework

5f7d5ab

Fix timer bug

f669e6a

Merge branch 'main' into Basic_framework_of_virtualization

a6cc501

change link.x back

ef01f83

add virtio so that we can use BlueOS consle

fcc3d06

Add virtio so that we can use BlueOS console after Linux poweroff. Me…

d039b11

…anwhile rebase main branch.

deleting virt_linux_boot call and using rustfmt

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jinwjinl commented May 8, 2026 •

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