On Wed, Jun 01, 2011 at 15:36, Edgar E. Iglesias wrote: > On Wed, Jun 01, 2011 at 03:03:18PM +0800, Lê Đức Tài wrote: > > On 31.05.2011, at 23:52, Alexander Graf wrote: > > > On 31.05.2011, at 18:05, Lê Đức Tài wrote: > > > > > > > > Hi! > > > > My name is Tai. > > > > Sorry for bother you! > > > > > > > > I have a question about QEMU for powerpc. > > > > Can QEMU emulate the ppc440 on a i386 host? > > > > I mean it is full-system emulation. > > > > Because when I'm trying to run linux ppc440 with qemu on my i386 PC > > > > I alway get the error like that: > > > > > > > > $ qemu-system-ppc -M bamboo -kernel vmlinux > > > > qemu: fatal: Trying to execute code outside RAM or ROM at 0xc0000000 > > > > > > > > NIP c0000000 LR 00000000 CTR 00000000 XER 00000000 > > > > MSR 00000000 HID0 00000300 HF 00000000 idx 0 > > > > Segmentation fault > > > > > > > > $ qemu-system-ppc -M bamboo -kernel arch/powerpc/boot/uImage > > > > Trying to read privileged spr 947 3b3 at 00001014 > > > > Trying to read invalid spr 62 03e at 00000778 > > > > > > > > I using QEMU that configured and built with device tree support > > > > (enable libfdt). > > > > QEMU version 0.14.1 > > > > The kernel image is built for bamboo using powerpc-440 toolchain. > > > > kernel-version 2.6.38.2 > > > > > > PPC440 emulation support has only been added to Qemu very recently > > > (0.14). So far, the only board that is somewhat known to work is the > > > virtex5 ml507 one with a 440x5 xilinx cpu. Please see > > > [1]http://wiki.qemu.org/ChangeLog/0.14#PPC for details. > > > > > > The bamboo board was added to enable KVM support for 440, it hasn't > > > been used with the emulation target yet. > > > > > > What exactly are you trying to emulate? > > > > > > > > > Alex > > > > Thank for your answer. > > I'm trying to emulate the ppc440 on a i386 host. > > My final target: Linux for PPC440 can run on Qemu and drop a shell > > prompt. > > When I try to run this command: > > $ qemu-system-ppc -M ? > > Supported machines are: > > virtex-ml507 Xilinx Virtex ML507 reference design > > mpc8544ds mpc8544ds > > bamboo bamboo (alias of bamboo-0.13) > > bamboo-0.13 bamboo > > bamboo-0.12 bamboo > > ref405ep ref405ep > > taihu taihu > > mac99 Mac99 based PowerMAC > > g3beige Heathrow based PowerMAC (default) > > prep PowerPC PREP platform > > I find two boards that have a PPC440 cpu: virtex-ml507 and bamboo. > > I have checked the bamboo board fist, then I get the result as above. > > Hower, the ml507 board seems not working too. > > I have built kernel image for Virtex ML507 using powerpc-440 toolchain. > > kernel-version: linux-2.6.39 > > config: 44x/virtex5_defconfig > > When I'm trying to run: > > $ qemu-system-ppc -M virtex-ml507 -kernel > > arch/powerpc/boot/simpleImage.virtex440-ml507.elf > > I get the following output: > > Unable to get size of device tree file 'ppc.dtb' > > Warning: vlan 0 with no nics > > Qemu just display a monitor console, it seems not to be loading the > > kernel. > > Could you help me some ideas? > > Could you help me the guide to emulate virtex-ml507 on i368 host? > > Hi, > > I've just uploaded a test image to the wiki's download pages. > See http://wiki.qemu.org/Download. > > You'll need a recent qemu, built with libfdt support. > > I threw in the linux kernelconfig used to build the image. I > used a rather old version (2.6.34) of the kernel provided by > Xilinx at: > git://git.xilinx.com/linux-2.6-xlnx.git > commit: > 91e2c43452914a789a4bebea7c199695bbf888f2 > > My guess is that you should be able to build a kernel directly > from upstream, but I haven't tried. > > One thing to note is that qemu still lacks support for the ll-temac > (ethernet nic) and the kernel hangs when probing for it. The workaround > is to remove it from the device tree file (ppc.dtb). Already done in > the archive with my test image, but good to know if you start rolling > your own stuff. > > Regarding the ll-temac, we've got it running and plan to submit, I just > need to get some time to clean it up etc.. sorry. > > Good luck > Thank you. I've just downloaded the test image from QEMU site. Then I run the qemu-run.sh script, it boot succesful. I get a nice shell. # cat /proc/cpuinfo processor : 0 cpu : 440 in Virtex-5 FXT revision : 25.16 (pvr 7ff2 1910) bogomips : 800.00 timebase : 400000000 platform : Xilinx Virtex440 model : testing Memory : 256 MB
Thank for your support one more. I will get the Xilinx kernel and try to build it. Tai
