On Fri, Sep 16, 2011 at 12:51 AM, Ali Saidi <sa...@umich.edu> wrote: > > On Sep 15, 2011, at 6:54 PM, Anirudh Sivaraman wrote: > >> On Thu, Sep 15, 2011 at 3:06 PM, Ali Saidi <sa...@umich.edu> wrote: >>> You'll need to create a disk image as outlined in: >>> >>> http://gem5.org/Disk_images >>> >>> and put the android filesystem on it. You should make sure that android is >>> in the name of the disk image so gem5 appends the correct kernel command >>> line. >> >> So I tried what you said. >> >> For the disk: I compiled Android from source, dropped all the relevant >> files from different Android file systems into one big ext2 file >> system mounted at '/'. >> As for the kernel: I followed the instructions here to compile the >> kernel : http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform as >> you told me. >> >> I notice I need to rename the disk image to ael-arm.ext2 and the >> kernel to vmlinux.arm for fs.py to load the kernel and disk image >> correctly. >> After doing so, and changing the M5_PATH to point to the appropriate >> files, I am still unable to boot it in Full System. >> >> Here is what happens: >> >> 1. I first run ARM_FS using the kernel I built from >> http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform ( >> specifically I use the uImage file that the build generates) . The >> file system is generated by compiling Android from source and >> aggregating files. It says vmlinux.arm could not be loaded. I am not >> sure, but probably the kernel image is not expected to be a uImage ( >> which is created from the Linux kernel build) but rather something >> else ? Alternatively, is a separate bootloader file required ? > > No, the kernel is expected to be a vmlinux file (with symbols, not a uImage). > >> >> 2. So I tried copying the ARM_FS full system files from >> http://www.m5sim.org/dist/current/arm/arm-system-2011-08.tar.bz2 and >> tried running that ( after renaming the kernel file in 'binaries' to >> vmlinux.arm and the disk image in 'disks' to ael-arm.ext2). It now >> fails with : >> >> fatal: system.membus has two ports with same range: >> system.bridge-portB >> system.diskmem-port0 >> @ cycle 0 >> [recvStatusChange:build/ARM_FS/mem/bus.cc, line 551] >> Memory Usage: 7391584 KBytes > > Are you using the latest gem5 development repository?
Hi Sorry for the delay in responding. I switched to gem5 development instead of gem5 stable and this BUS problem went away. However, I have new issues. I list them here : 1. When I boot ARM FS with the kernel,bootloader and file images available here : http://www.m5sim.org/Download, it does boot ( I used the smaller 512 MB disk image). However m5term asks me for a login ( saying AEL login) and a password after booting into the system. 2. When I boot ARM_FS with the kernel image and file system I created from the instructions here : http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform I get the error : unrecognized/unsupported machine ID (r1 = 0x0000065a) and it does not boot at all. used the bootloader from the gem5 site. Maybe I am not using the correct format of the kernel file. You mention that I need a vmlinux image and not a bootable image. How does one create that; the instructions on the ARM Android page create a uBoot target ? Also, how do I create a specific Android bootloader or will the same boot.arm that is available on the m5 downloads page for ARM work for this as well ? 3. When I boot ARM_FS with the kernel provided in the GEM5 download page but my own custom Android file system it fails with the following error message: 2244951734500: system.cpu.break_event: break event panic triggered Probably the kernel needs to be compiled to support Android ? This maybe out of the scope of GEM5. 4. I get the following warnings upon boot : warn: The clidr register always reports 0 caches. warn: clidr LoUIS field of 0b001 to match current ARM implementations. warn: The csselr register isn't implemented. warn: The ccsidr register isn't implemented and always reads as 0. warn: instruction 'mcr bpiallis' unimplemented warn: instruction 'mcr icialluis' unimplemented 227304500: system.terminal: attach terminal 0 warn: instruction 'mcr dccimvac' unimplemented warn: instruction 'mcr dccmvau' unimplemented warn: instruction 'mcr icimvau' unimplemented warn: LCD dual screen mode not supported Are they harmless ? 5. How do I configure ARM_FS to accept different names for my kernel, boot and file system images ? It looks like these are hardcoded at places. It would be great if I could get some help on these things, since I feel I am much closer to actually getting it up and running now. Anirudh > >> >> 3. I also tried the Android file system I created with the kernel >> taken from the gem5 site. That fails as well. >> >> Any help on this would be great. >> >> Anirudh >> >>> >>> Ali >>> >>> >>> >>> You should be able to pass the kernel and disk image to gem5 and it should >>> owkr. >>> On Thu, 15 Sep 2011 10:29:11 -0400, Anirudh Sivaraman <sk.anir...@gmail.com> >>> wrote: >>>> >>>> Hi >>>> >>>> I followed the steps given at : >>>> http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform to build the >>>> Android platform and the kernel images for ARM. I have all the >>>> relevant files for the Android platform on my system now. However, I >>>> am not sure how to put all of these into one disk image for GEM5 >>>> simulation. Would I need to separately add a bootloader file as well >>>> to the disk image ? The instructions here : >>>> http://gem5.org/Ubuntu_Disk_Image_for_ARM_Full_System seem specific to >>>> running Ubuntu on ARM, and I am not sure if these extend to Android >>>> directly. >>>> >>>> Anirudh >>>> _______________________________________________ >>>> gem5-users mailing list >>>> gem5-users@gem5.org >>>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>> >>> _______________________________________________ >>> gem5-users mailing list >>> gem5-users@gem5.org >>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >>> >> > > _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
