> On Sat, Feb 9, 2013 at 4:45 PM, Alexander Spyridakis > <a.spyridakis@xxxxxxxxxxxxxxxxxxxxxx> wrote: >> >> On 9 February 2013 10:04, sanju james <sanjukuttu@xxxxxxxxx> wrote: >>> >>> Can somebody suggest me an idea how to patch this with real prempt patch >>> (can i use latest patch available that is 3.6) and move forward ? Hope >>> someone will reply with proper >> >> >> As already pointed out this is way of topic, so please try to refrain from >> posting unrelated material here. https://www.osadl.org/?id=1507 "Challenges in Virtualizing Real-Time Systems Using KVM/QEMU Solution Manikandan Ramachandran, Infosys Technologies Limited Real-time systems used in media space have to be highly reliable. Historically, product manufacturers provide high reliability solution by providing backup device that covers a primary device. The issue with this solution is that the end customers are forced to invest heavily on both installation and maintenance of backup devices that essentially doesn’t provide quantifiable value to their service. With the advent of hardware-assisted virtualization, and proprietary and open source hypervisor solution, many embedded communication devices started providing high availability solution on a single physical device. This concept saved precious resource for the end customers. KVM/QEMU is one such para-virtualization solution that exploits hardware virtualization feature. Over past few years KVM/QEMU Virtualization solution is growing at a fast rate in enterprise server industry; however, on embedded space the penetration is low. This paper looks at various challenges an embedded architect would face in adapting KVM/QEMU solution. The paper starts by providing various reasons for embedded system architects to look for virtualization solution. Then it lists how KVM/QEMU solution can address architects’ requirement. Further the paper provides a detailed description about various modules that are involved in KVM/QEMU virtualization solution and gives a brief overview about the interaction among these modules. The paper concludes by providing various efforts that were made to implement a high availability concept using KVM/QEMU virtualization solution." https://www.osadl.org/QA-Farm-Realtime.qa-farm-about.0.html#c4712 "Real-time host and kvm virtualization Rationale There are a number of scenarios where is it highly desirable to run a virtualized guest system in a real-time compliant host computer. One scenario is the combination of an industrial control system with an integrated graphical user interface. In such situations, the host and the guest system have very different requirements with respect to real-time, safety and security. In addition, they often require different operating systems, since the graphical user interface is usually written for a proprietary tool chain which makes it impossible to port it to another environment - at least not in the short run. On the other hand, using a single combined computer system instead of two separate computers has a lot of advantages - less prone to hardware failures, easier system management, reduced purchase and service costs to just name a few." On Tue, Feb 12, 2013 at 10:36 PM, sanju james <sanjukuttu@xxxxxxxxx> wrote: > > Hallo, > > I had tried out the idea as you mention but there is some problem to bring > up the configuration. I check out the version of kernel as you told and > compiled, it is ok. Later when i tried to boot up the host , after the fast > models where launched there was no response, infact no terminal was opened > to show the boot up messages. > > Later i tried to change also the device tree to previous version with > commit number d12cc67, this has also made no difference. > > Can you suggest me what could be the problem since boot up messages are not > coming am not able to identify what could be the problem. > > Is there a need to change filesystem ? or it is same always for all the > release. > > > On Sat, Feb 9, 2013 at 4:45 PM, Alexander Spyridakis > <a.spyridakis@xxxxxxxxxxxxxxxxxxxxxx> wrote: >> >> On 9 February 2013 10:04, sanju james <sanjukuttu@xxxxxxxxx> wrote: >>> >>> Can somebody suggest me an idea how to patch this with real prempt patch >>> (can i use latest patch available that is 3.6) and move forward ? Hope >>> someone will reply with proper >> >> >> As already pointed out this is way of topic, so please try to refrain from >> posting unrelated material here. >> >> In any case what you could try to make this easier, is to checkout an >> older KVM on ARM version and try to apply the RT patchset on it. >> >>> git clone git://github.com/virtualopensystems/linux-kvm-arm.git >>> >>> cd linux-kvm-arm >>> >>> git checkout origin/kvm-arm-v12 -b kvm-arm-v12 >> >> >> If successful keep in mind that you need a proper QEMU binary, the latest >> will be incompatible with that old branch. >> >> Regards. >> > > > > _______________________________________________ > kvmarm mailing list > kvmarm@xxxxxxxxxxxxxxxxxxxxx > https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
