I have built the environment using provided Dockerfile on a Ubuntu 16.04 machine without errors. The image is on dockerhub: ml2558/gunyah:gunyah. However, when I follow the rest process building the hypervisor, resource manger and c runtime and pack them into single hypvm.elf binary and try to run them using qemu, it does not have any output. Is it normal?

Edit: here is what it looks like:

(gunyah-venv) root@a12fdfadd046:/home/gunyah-hypervisor# qemu-system-aarch64 -machine virt,virtualization=on,gic-version=3,highmem=off \

-cpu max -m size=2G -smp cpus=8 -nographic
-kernel /home/hypvm.elf
-device loader,file=$OUTPUT_DIR/Image,addr=$LINUX_BASE
-device loader,file=$OUTPUT_DIR/virt.dtb,addr=$DT_BASE
-device loader,file=$OUTPUT_DIR/initrd.img,addr=$INITRD_BASE

after entering the above command, the terminal just hangs (no errors, crashes, etc).

Following the Guide, I can successfully run gunyah and the VM, but I want do some more study about it, so, I want to add A Test App( A image) into the VM, then I can run some test. But I failed. I tried the below two ways:

1. add the image as the qemu-system-aarch64 with "--drive " option like below:

qemu-system-aarch64 \
-machine virt,virtualization=on,gic-version=3,highmem=off \
-cpu max -m size=2G -smp cpus=8 -nographic \
-kernel ../gunyah/gunyah-hypervisor/hypvm.elf \
-device loader,file=/usr/local/src/out/Image,addr=0x41080000 \
-device loader,file=/usr/local/src/out/virt.dtb,addr=0x44200000 \
-device loader,file=/usr/local/src/out/initrd.img,addr=0x44400000 \
**-drive  format=raw,index=0,file=../gunyah/myAPP.squashfs**

The command runs successfully without error, but after login to VM OS, there nothing can be seen in any folders in the VM OS

2. Try add my APP into the initram disk image, and got error below: [ 36.559017] Initramfs unpacking failed: read error ....... ..... [ 55.419495] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) [ 55.435487] CPU: 5 PID: 1 Comm: swapper/0 Not tainted 5.14.0-rc1-00199-g45312bd762d3-dirty [ 55.441980] Hardware name: linux,dummy-virt (DT) [ 55.445334] Call trace: [ 55.448231] dump_backtrace+0x0/0x1d4 [ 55.461203] show_stack+0x1c/0x28 [ 55.467446] dump_stack_lvl+0x68/0x80 [ 55.480107] dump_stack+0x18/0x3c [ 55.481206] panic+0x17c/0x36c [ 55.482637] mount_block_root+0x1d4/0x200 [ 55.484015] mount_root+0x60/0x6c [ 55.488445] prepare_namespace+0x11c/0x198 [ 55.489134] kernel_init_freeable+0x154/0x184 [ 55.489837] kernel_init+0x24/0x19c [ 55.490759] ret_from_fork+0x10/0x18 [ 55.494631] SMP: stopping secondary CPUs [ 55.514051] Kernel Offset: 0x4396b0c80000 from 0xffff800010000000 [ 55.517683] PHYS_OFFSET: 0x40000000 [ 55.524732] CPU features: 0x000002d1,6d300c47 [ 55.533291] Memory Limit: none [ 55.552053] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) ]---

Any advice would be greatly appreciated.

Update build.md to specify that the boot image needs to be generated using the stripped version of the Resource Manager and C Runtime output binaries.

Hi,

I get the following error while building the resource manager. Any pointers would be very helpful.

cheers, Achin

[50/50] ld build/resource-manager FAILED: build/resource-manager /home/achgup01/work/tools/llvm/llvm-musl-install/bin/clang -target aarch64-linux-gnu -fuse-ld=lld -mcpu=cortex-a75 -static-pie -Wl,--gc-sections -static -fuse-ld=lld --rtlib=compiler-rt -Wl,-z,max-page-size=4096 -Wl,-z,separate-loadable-segments -lfdt -Wl,-Bstatic -L /home/achgup01/work/tools/sysroot/lib --sysroot=/home/achgup01/work/tools/llvm/llvm-musl-install//aarch64-linux-gnu/libc/ build/arch/armv8/obj/src/smc.c .o build/platform/qemu/obj/src/uart_qemu.c.o build/src/obj/dt/dt_overlay.c.o build/src/obj/event/event-isr.c.o build/src/obj/exit/exit.c.o build/src/obj/guest_interface.c.o build/src/obj/hyp/memextent.c.o build/ src/obj/irq_manager/irq_manager.c.o build/src/obj/memparcel/memparcel.c.o build/src/obj/preempt/preempt.c.o build/src/obj/resource-manager.c.o build/src/obj/rpc/rm-rpc-fifo.c.o build/src/obj/rpc/rm-rpc-msgqueue. c.o build/src/obj/rpc/rm-rpc.c.o build/src/obj/uart/uart.c.o build/src/obj/utils/address_range_allocator.c.o build/src/obj/utils/circular_buf.c.o build/src/obj/utils/dict.c.o build/src/obj/utils/vector.c.o build /src/obj/vm_config/dtb_parser.c.o build/src/obj/vm_config/vm_config.c.o build/src/obj/vm_config/vm_config_parser.c.o build/src/obj/vm_config/vm_get_resources.c.o build/src/obj/vm_console/vm_console_simple.c.o bu ild/src/obj/vm_creation/dto_construct.c.o build/src/obj/vm_creation/hlos_vm.c.o build/src/obj/vm_creation/second_vm.c.o build/src/obj/vm_creation/vm_creation.c.o build/src/obj/vm_mgnt/vm_mgnt.c.o -o build/resour ce-manager ld.lld: error: cannot preempt symbol: __init_array_start

defined in referenced by __libc_start_main.c:13 (../src/env/__libc_start_main.c:13) __libc_start_main.o:(.rodata+0x18) in archive /home/achgup01/work/tools/llvm/llvm-musl-install//aarch64-linux-gnu/libc//lib/libc.a

ld.lld: error: cannot preempt symbol: __init_array_end

defined in referenced by __libc_start_main.c:13 (../src/env/__libc_start_main.c:13) __libc_start_main.o:(.rodata+0x20) in archive /home/achgup01/work/tools/llvm/llvm-musl-install//aarch64-linux-gnu/libc//lib/libc.a

ld.lld: error: cannot preempt symbol: _DYNAMIC

defined in referenced by __init_tls.c:80 (../src/env/__init_tls.c:80) __init_tls.o:(.rodata+0x0) in archive /home/achgup01/work/tools/llvm/llvm-musl-install//aarch64-linux-gnu/libc//lib/libc.a

ld.lld: error: cannot preempt symbol: __fini_array_end

defined in referenced by exit.c:15 (../src/exit/exit.c:15) exit.o:(.rodata+0x0) in archive /home/achgup01/work/tools/llvm/llvm-musl-install//aarch64-linux-gnu/libc//lib/libc.a

ld.lld: error: cannot preempt symbol: __fini_array_start

defined in referenced by exit.c:15 (../src/exit/exit.c:15) exit.o:(.rodata+0x8) in archive /home/achgup01/work/tools/llvm/llvm-musl-install//aarch64-linux-gnu/libc//lib/libc.a clang-10: error: linker command failed with exit code 1 (use -v to see invocation) ninja: build stopped: subcommand failed.

I'm teaching a class at UCSD Ext and thinking of using Gunyah for students to play around. Some are Windows users and only have WSL - Windows Subsystem for Linux.

We could not get "docker build -f gunyah/Dockerfile -t user:gunyah ." to complete because the gcc compiler or ninja ran out of memory on WSL.

Is it possible to host a prebuilt docker instance on hub.docker.com? I found a lot of Android and KVM dockers, but no Gunyah docker there.

There are no shared ".githooks" files: .githooks/pre-commit .githooks/commit-msg mentioned in Contribution page (same with C Runtime and Resource Manager)