users September 2014

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24 participants
31 discussions

netperf
by Анна Будкина 07 Jun '16

07 Jun '16

Hello! I'm running netperf TCP_STREAM and TCP_MAERTS tests for lxip stack and i obtained extremely low result - 5x10^6 bits/s while the maximum throughput is 1000 mbit/s . I wonder what could be the reason for that. Anna

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Re: Genode Hack'n Hike 2013
by Norman Feske 23 Mar '15

23 Mar '15

Hello everyone, the date for this year's Genode Hack'n Hike held during 11-16 of September is approaching. Genode's developers will spend those days in the beautiful scenery of the Bohemian Switzerland, relaxing, hiking, and hacking on fun side projects. The Hack'n Hike will be the perfect setting for getting involved with the community, catching up, or just hanging out with the Genode crowd. There is still room for more participants. Genode Labs sponsors the event. So your participation/accommodation is free. If you like to join in, please get in touch by writing to hacknhike@...1... or commenting on https://github.com/genodelabs/genode/issues/793. Cheers Norman On 07/25/2013 02:38 PM, Norman Feske wrote: > Hello, > > let me get back to this year's Genode Hack'n Hike planned for the 11th > to 16th of September. Since I posted the initial announcement (below), > we settled for a beautiful location in the Bohemian Switzerland in Czech > Republic. Check out the following links for wetting your appetite: > > http://goo.gl/maps/TAZc1 > http://www.kristinhradek.cz/en > > The location lends itself to a multitude of leisure activities. For > planning those activities and to discuss topics around the Hack'n Hike > event, there is a dedicated issue in the Genode issue tracker: > > https://github.com/genodelabs/genode/issues/793 > > Please feel welcome to join in, whether to stay the whole time or just > for a short visit. Genode Labs will sponsor the accommodation, but the > available space is limited. If you consider to join this year's Hack'n > Hike, please send a short notice to the following email address to > register your participation: > > hacknhike@...1... > > Cheers > Norman > > On 06/05/2013 12:42 PM, Norman Feske wrote: >> Hello, >> >> I'd like to share the following excerpt of the latest Genode-Labs >> newsletter with you: >> >> >> Join us at Genode's Hack'n Hike event >> ------------------------------------- >> >> In spring of 2012, we held the first instance of the Genode Hack'n >> Hike, which were wonderful days full of hacking, relaxing, brain- >> storming, and enjoying the magnificent nature of the Saxon Switzerland >> together. From the feedback we got from the attendees, it goes >> without saying that this should not stay a singular event, but >> rather be the prelude of a tradition. Hence, we have fixed the date >> for this year's Hack'n Hike: >> >> Begin: Wednesday, September 11 >> End: Monday, September 16 >> >> We extended the duration of the event over that of last year's. >> Whether you'd like to drop by for just a few hours, or you'd like to >> stay for the whole time, you are welcome to join in. Genode Labs >> will sponsor the accommodation. So don't worry too much about the >> costs. >> >> As of now, we haven't finalized the decision about the venue, but >> you can be sure that it will be a beautiful and romantic place, >> presumably in Saxony/Germany or Bohemian Switzerland in Czech >> Republic. If you have particular preferences regarding the >> accommodation or leisure-time activities, then the best time to get >> in touch with us is now. Also, if you plan attending, we'd greatly >> appreciate a short notice, which will help us with planning ahead. >> Please write to: >> >> hacknhike@...1... >> >> We at Genode Labs are looking forward to the gathering of the Genode >> community in autumn and would love to welcome you! >> >> ------ >> >> For the full newsletter, please refer to >> >> http://genode-labs.com/news/newsletter/newsletter-2013-05 >> >> Cheers >> Norman >> > > -- Dr.-Ing. Norman Feske Genode Labs http://www.genode-labs.com · http://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth ------------------------------------------------------------------------------ Introducing Performance Central, a new site from SourceForge and AppDynamics. Performance Central is your source for news, insights, analysis and resources for efficient Application Performance Management. Visit us today! http://pubads.g.doubleclick.net/gampad/clk?id=48897511&iu=/4140/ostg.clktrk _______________________________________________ Genode-announce mailing list Genode-announce(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/genode-announce

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Conference "New Directions in Operating Systems" in London
by Norman Feske 03 Nov '14

03 Nov '14

Hello everyone, I was made aware of the following event titled "New Directions in Operating Systems", which takes place on 25 November in London. http://operatingsystems.io The conference is organized by members of the Rump-kernel community. Since Genode is using Rump kernels, e.g., to provide file systems, there is an obvious connection between both projects. I am planning to attend and possibly give a talk. Maybe the conference is of interest to some of you, too? It would be a nice opportunity to catch up. ;-) Cheers Norman -- Dr.-Ing. Norman Feske Genode Labs http://www.genode-labs.com · http://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth

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crypto library
by Tewodrose Kassa 01 Oct '14

01 Oct '14

Hi all, What crypto library is available in the Genode OS? how do we integrate it with our applications? thanks for answers. Cheers

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Re: trustzone and application
by Stefan Kalkowski 29 Sep '14

29 Sep '14

Hi Abhay, I assume you intended to mail to the developer list, therefore I respond there. On 09/29/2014 04:57 AM, Abhay Amala wrote: > Hi Stefan, > > Thank you very much for your reply > > I am new to kernel programing. I am wondering if you could clarify the > implementation of the helper code for 'smc' instruction. is it similar to > kernel module? > > I understand that I can only use registers to transfer arguments during > trap handling. am i right? No, as said you can use the registers, _or_ uncached memory. > How can arguments using the general purpose > registers transferred from the smc instruction and handled in the VMM code? The VMM has a dedicated dataspace (piece of memory) that contains the register set of the TrustZone world. It can be used to bootstrap the VM, handle traps, or inject interrupts. > > Is there any similar work on this scenario? so that I can further refer it. Yes, there is. The most interesting reference for you shall be: http://genode.org/documentation/articles/trustzone including references to a sophisticated example, including the Linux kernel code. Moreover, there are a lot of threads in the archive of this mailing list, which dealt with the topic of TrustZone, tz_vmm, and the i.MX53 platform. Regards Stefan > > > Thank you in advance for time and consideration > > Best regards, > Abhay > > > On Fri, Sep 26, 2014 at 8:31 AM, Stefan Kalkowski < > stefan.kalkowski@...1...> wrote: > >> Hi Abhay, >> >> On 09/26/2014 04:12 AM, Abhay Amala wrote: >>> Hi >>> >>> I use the tz_vmm example and can run Genode in the secure world and >> Linux >>> in the normal world on i.mx53 qsb in parallel. And i can also run an >>> application in the secure side (on top of Genode) using the tz_vmm >>> script. >>> >>> I want to run a program in the normal world(Linux) and the program should >>> get access to a service or data from an application running in secure >> world >>> (Genode). >>> How can applications in different worlds interact among themselves? thank >>> you in advance >> >> You can use the 'smc' instruction to exit the "normal" world, and trap >> to the secure world. This is a privileged instruction, and cannot be >> used in user mode. So you need to place some helper code in the Linux >> kernel. >> The base-hw kernel in Genode will forward the trap to the VMM >> application. You can use all general purpose registers to transfer >> arguments, or if this isn't enough, place it in a portion of _uncached_ >> memory. The cache lines are tagged as non-secure or secure, so when >> using cached memory o either side you won't feel happy. In general, it >> is possible to translate from virtual memory on the secure side to >> physical memory on the non-secure one. However, Genode doesn't provide >> that feature currently. >> To answer the hypercall, the VMM places the answer within the registers, >> or memory, and resumes its execution. >> >> When you want to signal something the other way asound, from the >> "secure" world to the guest VM, you can emulate an interrupt by >> modifying the register set of the VM within the VMM accordingly. >> For doing so, please consult the ARM v7A reference manual B1.8 about the >> exception handling. >> >> Best Regards >> Stefan >> >>> >>> regards, >>> Abhay >>> >>> >>> >>> >> ------------------------------------------------------------------------------ >>> Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer >>> Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports >>> Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper >>> Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer >>> >> http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk >>> >>> >>> >>> _______________________________________________ >>> genode-main mailing list >>> genode-main(a)lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/genode-main >>> >> >> -- >> Stefan Kalkowski >> Genode Labs >> >> http://www.genode-labs.com/ · http://genode.org/ >> >> >> ------------------------------------------------------------------------------ >> Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer >> Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports >> Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper >> Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer >> >> http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk >> _______________________________________________ >> genode-main mailing list >> genode-main(a)lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/genode-main >> > -- Stefan Kalkowski Genode Labs http://www.genode-labs.com/ · http://genode.org/

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Para-virtualization support for ARM on Genode
by Praveen B 26 Sep '14

26 Sep '14

Hi We are able to run Genode-14.08 on i.MX6 board. Now I am planning to add support for virtualization for Genode on i.MX6. As the processor is Cortex-A9, it does not have virtualization extensions. So I am planning to implement a hypervisor to run para-virtualized linux, similar to the one proposed in the following paper, http://systems.cs.columbia.edu/archive/pub/2014/03/kvm-arm-the-design-and-i… I am not sure that would work for ARMv7 as they have only tested for ARMv5. Can you suggest any other para-virtualization solutions preferred for the implementation of Genode. I saw L4Linux but it is a port of linux to L4Re and not to the kernel itself. On the other hand, SierraVisor and Xen are bare metal hypervisors. The road map for Genode 14.11 says virtualization support for Cortex-A7. I assume you will be using virtualization extensions and not a para-virtualization solution. Can you suggest which is the best place to start. Should I implement a VMM similar to tz_vmm server or should it be implemented in base-hw as VMM should be in supevisor mode and not user mode. Regards Praveen Srinivas M.Tech 2nd Year, CSE, IIT Madras

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Hack'n'Hike in May 2015
by Norman Feske 26 Sep '14

26 Sep '14

Hello everyone, even though this year's Genode Hack'n'Hike has just passed a few days ago, the planning of the next edition has started already. Let me point you to the following discussion: https://github.com/genodelabs/genode/issues/1256 It goes without saying that we would be delighted about you joining in! Cheers Norman -- Dr.-Ing. Norman Feske Genode Labs http://www.genode-labs.com · http://genode.org Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth

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trustzone and application
by Abhay Amala 26 Sep '14

26 Sep '14

Hi I use the tz_vmm example and can run Genode in the secure world and Linux in the normal world on i.mx53 qsb in parallel. And i can also run an application in the secure side (on top of Genode) using the tz_vmm script. I want to run a program in the normal world(Linux) and the program should get access to a service or data from an application running in secure world (Genode). How can applications in different worlds interact among themselves? thank you in advance regards, Abhay

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ambiguous services of children
by David Goltzsche 25 Sep '14

25 Sep '14

Hi all, in my setup, i have a parent process with multiple children with IDs, lets say the are named child_1 to child_3. the parent recievces messages with an ID and should forward it to the child with the corresponding ID. Therefore all children announce the same service, lets say "child_communcation", to the parent. In order to avoid ambiguities, the parent process would have to reconfigure its route every time a message arrives. that means if message with ID 3 arrives, the route for the service "child_communication" must lead to child_3. this solution seems odd to me, am i missing a mechanism in genode that allows a parent to communicate with its children directly, when they all announced the same service? regards David

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Network example in Raspberry Pi
by Mhamad Hmad 23 Sep '14

23 Sep '14

Hi Norman, Hi All As feed back of my previous effort, i can tell you that i was able to bring IPsec to the LWIP stack and test it with manual configuration and it is work well . Now i would like to test that in RPi , but actually I faild even to run the Demo example by using the release 14.08 of Genode. later, I tried with the release 13.11 and it is working smoothly. Now i would like to test the network example ( libports/run/lwip.run) i tried to run it but i get make[1]: Leaving directory `/home/mohammad/genode-13.11/build.rpi' cp: cannot stat `bin/nic_drv': No such file or directory any one was able to run this test successfully before ? if not , any advices or suggestions to help me to do it . best, Mohammad

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users September 2014