users June 2022

users@lists.genode.org

10 participants
6 discussions

terminal interface for tests
by genode.org＠netorderly.com 30 Jun '22

30 Jun '22

Hello, is it possible to launch and execute commands on a Genode VM completely through a Linux terminal? I tried qemu's '-nographic' option but it doesn't work. The reason I need this is because I want to make some changes to a compiler that has Genode support. I need to make some changes to the Genode specific code generation. I would like to do this as a test workflow on GitHub. Thanks!

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Reboot on ArmV8
by Shashank Anand 30 Jun '22

30 Jun '22

Hi Genodians, On x86, the acipica component enables shutdown and reboot of the device. I was however unable to find any related component in the genode repo for power management on ArmV8 The PSCI functions are a convenient way for power management in ArmV8. The base-hw kernel already provides a PSCI implementation of cpu_on and cpu_off and it is trivial to implement the other PSCI functions as well. I am particularly interested in system reset. I would like to perform a system reset from a user space component, however PSCI requires kernel privileges. Would it be possible to expose the PSCI system reset service to a specific component? How feasible is this modification with respect to the structure of base-hw? Regards, Shashank

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usage of new PC `platform_drv` and `pci_decode`
by Duss Pirmin 28 Jun '22

28 Jun '22

Hello Genodians While debugging https://github.com/genodelabs/genode/issues/4538, I'm having trouble using the new `platfomr_drv` for the PC platform. From the release notes of 22.05, it seems that the new component `pci_decode` should be used to create the list of PCI devices. Searching for this on master and staging I only find the component's source and its mention in the release notes - but not how it's used. I therefore extended my search. In the repository of skalk, I have found the branch `nvme_drv`, which adapts the NVMe driver for the new platform driver. When I execute the run-script from this branch on different platforms (x86_64 qemu, an Intel 8th gen up-xtreme and my Intel 11700), `pci_decode` doesn't report any PCI devices. Are there any further requirements to use the new platform driver on PC? Best regards Pirmin

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Compile error in Foundations book
by Guido Witmond 13 Jun '22

13 Jun '22

Hi Norman, I spotted a compile error in the Foundations book. Page 33 section void _handle_timeout() { log("woke up at ", _timer.elapsed_ms(), " ms"); } /home/user/genode/repos/lab/src/app/hello/main.cc:15:5: error: ‘log’ was not declared in this scope; did you mean ‘Genode::log’? I guess this is an oversight as it is the first example that's worth copy/paste and try out.. Cheers, Guido. PS. I've restarted my Genode experiments, this time with my APU4. I hope to turn it into a simple edge router for my home network... When it works I want to do a genodians blog on it.

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How to use virtio qemu nic?
by Alexander Tormasov 03 Jun '22

03 Jun '22

Good day! I want to compile my network http golang sample using the following command make -C build/arm_v8a/ KERNEL=hw BOARD=virt_qemu run/go_http Where I can find example of usage virtio nic for arm ? I try to use scrcpy sample for universal run file , and add something like below - but it fail: proc binary_nic_drv { } { if {[have_board linux]} { return "linux_nic_drv" } if {[have_board pc]} { return "ipxe_nic_drv" } if {[expr [have_board virt_qemu] && [have_spec arm_64]]} { return "virtio_mmio_nic" } if {[expr [have_board virt_qemu] && [have_spec x86_64]]} { return "virtio_pci_nic" } return "unknown_nic_drv" } … set depot_pkgs "[depot_user]/pkg/[drivers_nic_pkg]" lappend depot_pkgs [depot_user]/src/[binary_nic_drv] if [have_board linux] { lappend depot_pkgs [depot_user]/src/linux_rtc_drv } else { if [have_board pc] { lappend depot_pkgs [depot_user]/src/rtc_drv } else { lappend depot_pkgs [depot_user]/src/dummy_rtc_drv } } puts $depot_pkgs import_from_depot $depot_pkgs (Use binary_nic_drv in config) … lappend_if $use_nic boot_modules [binary_nic_drv] … build_boot_image $boot_modules append qemu_args " -m $mem_size -nographic -smp $num_cpu" append_qemu_nic_args "hostfwd=tcp::5555-:80" run_genode_until forever Fail: Library stdcxx Program test/go_http/go_http make[1]: Leaving directory '/var/services/homes/admin/gen/22.05/build/arm_v8a' genode build completed genodelabs/pkg/drivers_nic-virt_qemu genodelabs/src/virtio_mmio_nic genodelabs/src/dummy_rtc_drv Error: recipe for 'src/virtio_mmio_nic' not found - unable to guess version make: *** [Makefile:421: run/go_http] Error 1 make: Leaving directory '/var/services/homes/admin/gen/22.05/build/arm_v8a'

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Problem in 22.05 compilation of scrcpy from world
by Alexander Tormasov 03 Jun '22

03 Jun '22

Good day! After move to the version 22.05 I found 2 problems in scrcpy app (which I used as a sample for my own) 1. Incorrect fix of run file: --- /var/services/homes/admin/gen/22.05/repos/world/run/scrcpy.run 2022-06-03 12:27:27.438797613 +0300 +++ /var/services/homes/admin/gen/21.11/repos/world/run/scrcpy.run 2021-12-13 16:29:17.534528834 +0300 @@ -201,13 +201,16 @@ <affinity-space width="4"/> <parent-provides> <service name="ROM"/> + <service name="RAM"/> <service name="IRQ"/> <service name="IO_MEM"/> <service name="IO_PORT"/> + <service name="CAP"/> <service name="PD"/> <service name="RM"/> <service name="CPU"/> <service name="LOG"/> + <service name="SIGNAL"/>} append_if $use_trace config { <service name="TRACE"/>} Pay attention that you remove accidentally } 1. After fix of the above I found another problem: Library base Program drivers/nic/virtio/spec/x86/virtio_pci_nic make[1]: Leaving directory '/var/services/homes/admin/gen/22.05/build/x86_64' genode build completed checking configuration syntax CHECK init CHECK init -> nic_router using 'core-nova.a' as 'core.a' error copying "bin/ipxe_nic_drv": no such file or directory while executing "file copy -force $src $dst" (procedure "copy_file" line 2) invoked from within "copy_file bin/[kernel_specific_binary $binary] [run_dir]/genode/$binary" (procedure "copy_genode_binaries_to_run_dir" line 4) invoked from within "copy_genode_binaries_to_run_dir $modules" (procedure "build_core_image" line 12) invoked from within "build_core_image $binaries" (procedure "run_boot_dir" line 26) invoked from within "run_boot_dir $binaries" (procedure "build_boot_image" line 35) invoked from within "build_boot_image $boot_modules" (file "/var/services/homes/admin/gen/22.05/repos/world/run/scrcpy.run" line 584) invoked from within "source $include_name" ("foreach" body line 6) invoked from within "foreach include_name [get_cmd_arg --include ""] { # first check if the include name is absolute if {[string first "/" $include_name] == 0} { puts ..." (file "/var/services/homes/admin/gen/22.05/tool/run/run" line 1155) make: *** [Makefile:421: run/scrcpy] Error 1 make: Leaving directory '/var/services/homes/admin/gen/22.05/build/x86_64' Any idea how to fix?

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users June 2022