users February 2021

users@lists.genode.org

19 participants
24 discussions

General Improvements for Sculpt
by Edoardo Mantovani 24 Mar '21

24 Mar '21

Hello everyone, Sorry for the late general reply, but I needed some days to elaborate on some of my ideas for Sculpt os. In those days I've tested almost every package available on depot, I must say some things referred for falkon browser: it is nice and probably the most interesting software in the entire distribution, but I think that disabling JS by default could be a really nice step for a more lightweight approach (which follows sculpt "style"), I've tested the frames and the browser speed through online tests and lichess duels, seems to go quite well, only small downside: sometimes it tends to stuck or stop the internet connection but is often a temporary problem, not persistent. PS I don't know why but when I've done the browser fingerprint, I found that the browser is effectively installed on Genode, have you set any identificative User Agent (or similar) for that? I don't know if "Chocolate Doom" is the homonymous video game, but unfortunately I wasn't able to play it cause an infinite "I_init: setting up machine state", the audio driver was the bsd_audio_drv while the wm was the themed_wm (internet connection under nic_router), do you know if I am doing anything wrong? I am not big fans of video games, but I would like to try it! Another few general considerations: the learning curve of Sculpt is pretty fast, I don't know why, but after few days I increased the feeling with the OS, the documentation played a fundamental role in it, Have you thought to implement also a touch screen mode for Sculpt? may be extremely interesting for smartphones. One good point is the "inspect" shell, fast and portable, I like it, only one problem: too few tools under /bin are available, apart vim, there is not many things you can do with it, my idea for fixing that could be to add few more useful tool: one idea could be the microsed implementation, it is around 25kb and permits to modify files through Regexp, only downside for this implementation: still many commands crashes (-e is an example). (sorry for the zip of the last time, I had not the idea of how peoples are suspicious on compressed files haha), the files are sed.h, sedcomp.c, sedexec.c and the relative Makefile; Another hint: upgrade the md5sum (maybe in the future) to something more secure, I don't know if Sculpt uses it for more complex (and security related) tasks but is strongly discouraged. I started to test the Xoroshiro PRNG you use for the OS internals, in general is quite secure, it is interesting to see its generation with a "0" seed. I'll search for some weakness on it in those days. Final suggestion: One day I tried to install as much software as I can on Sculpt, the result was quite strange, I wasn't able to scroll down the Leitz. enviroment, do you know if is possible to do it? { the photo is 5ECB60B5-C98C-496D-9A9D-ECB617AD6809 } Now I have more technical questions: Josef, I started yesterday studying how Genode handles wifi connections, it is almost identical to Linux, for the software stack (mac80211 and cfg80211) but I haven't understood why in firmware.cc ( the text file you linked to me ), in Fw_list struct some firmware images have NULL as available name while others have their correspondent name? Are still unimplemented some models ? I would like to start writing a software stack for BLE, any hints? Bluez could be a good starting point but honestly, I have no idea of how to port it on A non Unix system. Martin, I've finished the Wikipedia page translation, is the Wikipedia_it file, I've chosen to write it in Markdown language, let me know if is good. I've tried to adjust it as much as I can, let me know (I don't know if the format is legible by any Markdown interpreter). Norman, As the first thing, I've started to port a working Italian layout keyboard, the current version is in the email attachment (file: it_IT.chargen), only problem, certain letters are unavailable (like è, ò, à, ù, § and £), could you try to fix it? the big works for upper keys is already done and tested, (everything works well). Another few things to ask: Do you confirm that Sculpt, for now, has NO API or syscall available? it would be pretty useful for me to write tools in C with a nice syscall system, my idea could be to implement a programming language designed only for this OS which offers both high and low-level capabilities, (like Inferno's os Limbo programming language), I've started thinking on it, if you agree, in the next days I can try to design the main body of it (in PURE c, the best by test). Replaying the Bluetooth part: I agree with you, the big advantage you could gain by Bluetooth depot system consists on the practicality: think that the latest version of Bluetooth (5.0.X) can trace a device distance measurement by triangulation and, if we join this to the OBEX protocol, I think that a secure (and maybe native) application which show the nearest device which could act as depot server could be an interesting point, also think on the possible growth of a 24h connected (similar)"peer to peer" network system for discovering near possible Genode applications. [ Yes, not every device support BLE nor Bluetooth 5.0.X but for an incoming future could be a great idea] Let me know what you think, Regards, Edoardo Mantovani, 2021 -- Edoardo Mantovani Independent security researcher email: Baseband(a)cpan.org Urbino, Italy

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Genode at virtual FOSDEM 2021
by Norman Feske 08 Mar '21

08 Mar '21

Hello everyone, the annual FOSDEM in Brussels and the microkernel developer room in particular is almost a mandatory date for us. Instead of gathering in Brussels, this year, crowds of Free-Software and Open-Source enthusiasts will hold a virtual event. The FOSDEM organizers are restless with setting up virtual counterparts of important FOSDEM features like developer rooms and even hallway meetings. FOSDEM is free for everyone. FOSDEM 2021, February 6 and 7 https://fosdem.org/2021/ The microkernel developer room is shepherded by Martin Decky of the HelenOS project, who announced a call for participation in November. You may have noticed his posting on this mailing list. It goes without saying that we at Genode Labs urged to contribute. In the meantime, the schedule of the developer room has been decided. https://fosdem.org/2021/schedule/track/microkernel/ The topic of our contribution is the presentation and demo of our recent developments of pluggable device drivers, which will be the basis for on-the-fly driver updates, self-healing, and power management. Saturday, February 2, 13:05 "Pluggable device drivers for Genode" Norman Feske https://fosdem.org/2021/schedule/event/microkernel_pluggable_device_drivers… The developer room will close with a panel discussion among several participating projects including Genode and moderated by Martin Decky. Saturday, February 2, 15:05 "State of Microkernels in 2021" https://fosdem.org/2021/schedule/event/microkernel_state_in_2021/ See you at virtual FOSDEM 2021! Norman -- Dr.-Ing. Norman Feske Genode Labs https://www.genode-labs.com · https://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth

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bootm on imx8
by Michael Grunditz 27 Feb '21

27 Feb '21

Hi, I am trying to boot a genode uImage (tftp,bootm) but gets ATAG not compiled in. Do I need to patch out that error from u-boot , or is there another workaround? Br Michael Grunditz

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Sporadic Invalid_clear exception in init
by Pirmin Duss 26 Feb '21

26 Feb '21

Hello Genodians We have a complex scenario in which we deploy 6 configs periodically. The configurations are applied in a loop always in the same order. Eventually init throws 'Genode::Bit_array_base::Invalid_clear' and terminates (see the backtrace below). Maybe it is noteworthy that packages with sub inits that have components that use resource saturation are started. Does anybody have an idea on how to proceed with debugging the problem? Best regards, Pirmin ``` #0 0x0000000050086294 in Genode::Bit_array_base::_set (this=0x50137868 <(anonymous namespace)::local_capability_space()::capability_space+229384>, index=<error reading variable: That operation is not available on integers of more than 8 bytes.>, width=1, free=true) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/util/bit_array.h:87 #1 Genode::Bit_array_base::_set (free=true, width=1, index=<error reading variable: That operation is not available on integers of more than 8 bytes.>, this=0x50137868 <(anonymous namespace)::local_capability_space()::capability_space+229384>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/util/bit_array.h:75 #2 Genode::Bit_array_base::clear (width=1, index=<error reading variable: That operation is not available on integers of more than 8 bytes.>, this=0x50137868 <(anonymous namespace)::local_capability_space()::capability_space+229384>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/util/bit_array.h:149 #3 Genode::Bit_allocator<4096u>::free (num_log2=0, bit_start=<error reading variable: That operation is not available on integers of more than 8 bytes.>, this=0x50137860 <(anonymous namespace)::local_capability_space()::capability_space+229376>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/util/bit_allocator.h:118 #4 Genode::Capability_space_tpl<4096u, Genode::Native_capability::Data>::dec_ref (data=..., this=0x500ff860 <(anonymous namespace)::local_capability_space()::capability_space>) at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/include/base/internal/capability_space_tpl.h:196 #5 Genode::Capability_space::dec_ref (data=...) at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/lib/base/capability_space.cc:63 #6 0x000000005002756f in Genode::Native_capability::~Native_capability (this=0x401ff518, __in_chrg=<optimized out>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/native_capability.h:76 #7 Genode::Capability<Genode::Pd_session>::~Capability (this=0x401ff518, __in_chrg=<optimized out>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/capability.h:53 #8 Genode::Quota_transfer<Genode::Pd_session, Genode::Ram_quota>::Remote_account::~Remote_account (this=0x401ff510, __in_chrg=<optimized out>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/quota_transfer.h:86 #9 Genode::Child::_revert_quota_and_destroy (this=<optimized out>, session=...) at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/lib/base/child.cc:392 #10 0x000000005002800a in Genode::Child::session_closed (this=0x7ffff7f9eed0, session=...) at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/lib/base/child.cc:508 #11 0x0000000050029e99 in Genode::Child::<lambda(Genode::Session_state&)>::operator()(Genode::Session_state &) (session=..., __closure=<optimized out>, __closure=<optimized out>) at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/lib/base/child.cc:532 #12 0x000000005002a3d7 in Genode::Id_space<Genode::Parent::Server>::apply<Genode::Session_state, Genode::Child::session_response(Genode::Parent::Server::Id, Genode::Parent::Session_response)::<lambda(Genode::Session_state&)> > (fn=..., id=..., this=0x7ffff7f96088) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/mutex.h:64 #13 Genode::Child::session_response (this=<optimized out>, id=..., response=<optimized out>) at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/lib/base/child.cc:518 #14 0x000000005003e41d in Genode::Meta::call_member<Genode::Meta::Empty, Genode::Parent, Genode::Meta::Pod_tuple<Genode::Id_space<Genode::Parent::Server>::Id, Genode::Meta::Pod_tuple<Genode::Parent::Session_response, Genode::Meta::Empty> > > (func=<optimized out>, args=<synthetic pointer>..., server=...) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/util/meta.h:490 #15 Genode::Parent::Rpc_session_response::serve<Genode::Parent, Genode::Meta::Empty> (args=<synthetic pointer>..., server=...) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/parent/parent.h:325 #16 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_serve<Genode::Parent::Rpc_session_response> (args=<synthetic pointer>..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:146 #17 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:180 #18 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_close, Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:201 #19 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_upgrade, Genode::Parent::Rpc_close, Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:201 #20 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_session_cap, Genode::Parent::Rpc_upgrade, Genode::Parent::Rpc_close, Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:201 #21 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_session, Genode::Parent::Rpc_session_cap, Genode::Parent::Rpc_upgrade, Genode::Parent::Rpc_close, Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (this=this@entry=0x7ffff7f96318, opcode=..., opcode@entry=..., in=..., out=...) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:201 #22 0x000000005003ef50 in Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_session_sigh, Genode::Parent::Rpc_session, Genode::Parent::Rpc_session_cap, Genode::Parent::Rpc_upgrade, Genode::Parent::Rpc_close, Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/util/meta.h:626 #23 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_announce, Genode::Parent::Rpc_session_sigh, Genode::Parent::Rpc_session, Genode::Parent::Rpc_session_cap, Genode::Parent::Rpc_upgrade, Genode::Parent::Rpc_close, Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:201 #24 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::_do_dispatch<Genode::Meta::Type_list<Genode::Parent::Rpc_exit, Genode::Parent::Rpc_announce, Genode::Parent::Rpc_session_sigh, Genode::Parent::Rpc_session, Genode::Parent::Rpc_session_cap, Genode::Parent::Rpc_upgrade, Genode::Parent::Rpc_close, Genode::Parent::Rpc_session_response, Genode::Parent::Rpc_main_thread, Genode::Parent::Rpc_deliver_session_cap, Genode::Parent::Rpc_resource_avail_sigh, Genode::Parent::Rpc_resource_request, Genode::Parent::Rpc_yield_sigh, Genode::Parent::Rpc_yield_request, Genode::Parent::Rpc_yield_response, Genode::Parent::Rpc_heartbeat_sigh, Genode::Parent::Rpc_heartbeat_response> > (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:201 #25 Genode::Rpc_dispatcher<Genode::Parent, Genode::Parent>::dispatch (out=..., in=..., opcode=..., this=0x7ffff7f96318) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:235 #26 Genode::Rpc_object<Genode::Parent, Genode::Parent>::dispatch (this=0x7ffff7f96290, opcode=..., in=..., out=...) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/rpc_server.h:272 #27 0x000000005006b38a in Genode::Rpc_entrypoint::<lambda(Genode::Rpc_object_base*)>::operator() (obj=0x7ffff7f96290, __closure=<synthetic pointer>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/mutex.h:64 #28 Genode::Object_pool<Genode::Rpc_object_base>::apply<Genode::Rpc_entrypoint::entry()::<lambda(Genode::Rpc_object_base*)> > (func=..., capid=<optimized out>, this=0x500fca50 <Genode::bootstrap_component()::startup+528>) at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/object_pool.h:147 #29 Genode::Rpc_entrypoint::entry (this=0x500fc9a8 <Genode::bootstrap_component()::startup+360>) at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/lib/base/rpc_dispatch_loop.cc:68 #30 0x000000005009ec3d in Genode::Thread::_thread_start () at /data/genode/depot/trimpim/api/base/2021-02-23T1255/include/base/output.h:54 #31 0x00000000500b3e3b in thread_start () at /data/genode/depot/trimpim/src/base-linux/2021-02-23T1255/src/lib/syscall/spec/x86_64/lx_clone.S:62 ```

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RPC Interface for I2C Driver
by Jean-Adrien Domage 25 Feb '21

25 Feb '21

Dear Genodians, We would like to introduce an i2c driver for imx8q_evk to Genode. Thanks to the hints from Sebastian, I now have a prototype component that can send/receive data via the i2c bus of the imx8q_evk. The next task is to design the RPC interface for the driver. What would be a good kind of interface? Do you have driver(s)/component(s) to recommend as example? Or any specific guidelines? Cheers, Jean-Adrien Domage Software Engineer gapfruit AG

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Running Genode on a server system
by Joerg-C. Boehme 25 Feb '21

25 Feb '21

Hi everyone, I like to "use" Genode to get more familiar with it. My idea was to run a Genode server with lighttpd like genodians.org I have a small "Cloud Server" or "vServer" from Hetzner. It looks like they use qemu but unfortunately they use the "440FX" as emulation. It is not possible to use a nic_drv on it [1]. My question is, does somebody know who provide servers where I can install/run a Genode ? I assume the genodians.org is installed on its own hardware and "use a colocation" contract. Btw. I think this is the correct site [2] to see on which hardware genode is running, or? Thanks, Jörg [1] See my email on 24. Feb. 2021 15:01:26 CET: "acpi_drv / platform_drv support" [2] https://usr.sysret.de/jws/genode/hcl.html

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acpi_drv / platform_drv support
by Joerg-C. Boehme 25 Feb '21

25 Feb '21

Hi everyone, I have some question about the: acpi_drv and platform_drv. In short: Is acpi_drv and platform_drv are only supporting hardware boards with PCIe ? In detail: I do following: make KERNEL=nova run/lighttpd And start the var/run/lighttpd.iso with qemu-system-x86_64 (without -machine q35 parameter!) qemu-system-x86_64 -no-kvm -display sdl -cpu core2duo -nographic -netdev user,id=net0,hostfwd=tcp::5555-:80,hostfwd=tcp::5556-:443 -net nic,model=e1000,netdev=net0 -serial mon:stdio -m 512 -cdrom var/run/lighttpd.iso It fails with: .... [init -> nic_drv -> acpi_drv] SMBIOS table (entry point: 0x1758f0 structures: 0xf5910) [init -> nic_drv -> platform_drv] Error: ACPI report parsing error. [init -> nic_drv -> platform_drv] Error: Uncaught exception of type 'int' [init -> nic_drv -> platform_drv] Warning: abort called - thread: ep I extendend the "error output" (maybe you would like to have this? I can create a PR?) And I got following: ... [init -> nic_drv -> acpi_drv] Freeing up memory of elements - 3104 bytes [init -> nic_drv -> acpi_drv] SMBIOS table (entry point: 0x1758f0 structures: 0xf5910) [init -> nic_drv -> platform_drv] Error: ACPI report parsing error. Exception type int: 2 [init -> nic_drv -> platform_drv] Error: ACPI ROM: <acpi> [init -> nic_drv -> platform_drv] <root_bridge bdf="0x0"/> [init -> nic_drv -> platform_drv] <irq_override irq="11" gsi="11" flags="0xd"/> [init -> nic_drv -> platform_drv] <irq_override irq="10" gsi="10" flags="0xd"/> [init -> nic_drv -> platform_drv] <irq_override irq="9" gsi="9" flags="0xd"/> [init -> nic_drv -> platform_drv] <irq_override irq="5" gsi="5" flags="0xd"/> [init -> nic_drv -> platform_drv] <irq_override irq="0" gsi="2" flags="0x0"/> [init -> nic_drv -> platform_drv] </acpi> [init -> nic_drv -> platform_drv] [init -> nic_drv -> platform_drv] Error: Uncaught exception of type 'int' [init -> nic_drv -> platform_drv] Warning: abort called - thread: ep I figured out that following is missing: [init -> nic_drv -> platform_drv] <bdf start="0" count="65536" base="0xb0000000"/> The acpi_drv get this from [init -> nic_drv -> acpi_drv] MCFG BASE 0xb0000000 seg 0x0 bus 0x0-0xff MCFG -> PCI Express memory mapped configuration space base address Description Table I also figured out that the qemu parameter -machine q35 is using as chipset a ICH9 and this has PCIe * Can I somehow "manuel" configure the system on 440FX based hardware ? * Is there a reason why platform_drv is not supporting older hardware ? Thanks Jörg

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Announcement: Genode OS Framework version 21.02 released
by Norman Feske 25 Feb '21

25 Feb '21

I am very happy to announce the release of Genode 21.02, which features the results of three long-term developments. First, it introduces the ability to start, re-start, remove, and update network device drivers at runtime, following the approach we already took for framebuffer and input drivers last year. With this architectural change, the liveliness of network-application stacks no longer depends on the robustness of the used network drivers. Second, the release brings a long anticipated update of VirtualBox. The addition of VirtualBox 6 is not merely an evolutionary update of our aging VirtualBox 5 version. Instead, we repeated the legwork of porting this complex software stack from the ground up, drawing from the many lessons learned since our initial port of VirtualBox 4 in 2014, and refining Genode's virtualization interfaces along the way. The initial version of VirtualBox 6 should nevertheless be regarded as a snapshot of our ongoing development, not as a drop-in replacement of VirtualBox 5, yet. Third, Genode has now became able to use mobile-data connectivity over LTE. The work on the modem stack ranged from device drivers, over the porting of protocol-stack implementations, up to the network-configuration level. It goes without saying that this is an important building block for our ambition to run Genode on the Pinephone by the end of the year. Besides these prominent topics, the new version comes with many further improvements as summarized below. - Pluggable network device drivers - LTE modem stack - VirtualBox 6.1.14 - Improved USB pass-through for VirtualBox 5 - VirtIO block devices for virtual machines on ARM - Power-gating of PCI devices on x86 - Pine-A64-LTS single board computer - RISC-V update to privileged ISA 1.10 - VFS support for named pipes - OpenSSL 1.1.1i, curl 7.70.0 The full story is presented by our detailed release documentation at: https://genode.org/documentation/release-notes/21.02 Cheers Norman -- Dr.-Ing. Norman Feske Genode Labs https://www.genode-labs.com · https://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth

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problem with permanent modification on Sculpt
by Edoardo Mantovani 23 Feb '21

23 Feb '21

Hello Everyone, Some hours ago I've installed Sculpt OS on my HDD through DD tool using ubuntu flashed from bootable USB. Now, the system flashes without any errors and everything seems cool, but there is only one problem: I am not able to apport any permanent modification to the OS, everything seems to live in RAM, I have also followed the section "Making customizations permanent" here[1], but also without clicking into the ram fs filesystem bottoms the /config/ folder resets itself after the reboot. Any Hints? Obviously, I would like to have a desktop OS that isn't volatile. (Sorry for the possibly dumb question but I've never had such types of problems) NOTE: Sculpt perfectly supports the hardware of my computer. [1] https://genode.org/documentation/articles/sculpt-20-02 Regards. Edoardo Mantovani, 2021 --- Edoardo Mantovani Independent security researcher email: Baseband(a)cpan.org Urbino, Italy

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i2c driver on imx8q_evk board
by Jean-Adrien Domage 22 Feb '21

22 Feb '21

Dear Genodians, I am currently working on an i2c driver for the imx8q_evk board. I'm struggling to generate any kind of signal(s) on the i2c bus. First I had a look at os/src/drivers/touch/synaptic_dsx. I tried to run the i2c implementation from this driver on the i2c bus 2. It hang at the first _busy() call in the _start() method, i2c.h l:83. Please note that I skip all gpio and Event related part to make it work. Settings I used for I2c bus 2 -> irq: 68 ([1]) mmio:0x303a0000 ([2]), freq_div: 0x2a (64 for 400kHz) 1. Is this possible that this implementation is specific to the synaptic device? Then not working for others bus? 2. Reading [3], I noticed that _start() does not exactly follow this flowchart, is there any reason? Doing [4] is sufficient? 3. Do you have any other example of driver(s) using i2c like the touch/synaptic_dsx that may help me ? [1] IMX8MDQLQRM.pdf, chapter 7.1.2 A53 Interrupts, table 7-1 page 1023 [2] IMX8MDQLQRM.pdf, chapter 2.1.5 AIPS Memory Maps, table 2-5 page 28 [3] IMX8MDQLQRM.pdf, chapter 16.1 I2C Controller, Figure 16-7, page 6277 [4] IMX8MDQLQRM.pdf, chapter 16.1.5.1 Initialization sequence, page 6270 Thanks for your time. Cheers, Jean-Adrien Domage Software Engineer gapfruit AG

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users February 2021