At present, I use telnet (without password), login to microblaze qemu
successfully! :-)
- I compile busy box with the glibc in orginal 'ramfs', so get telnetd:
use new busybox replace the old one, and add symbol link 'telnetd' to
busybox in "/bin".
- configure qemu with network support (device "xlnx.xps-ethernetlite").
yum install libvirt
yum install tunctl
tunctl -b
ip link set tap0 up
brctl addif virbr0 tap0
./microblaze-softmmu/qemu-system-microblaze -M petalogix-s3adsp1800 \
-kernel ../linux-stable.microblaze/arch/microblaze/boot/linux.bin \
-no-reboot -append "console=ttyUL0,115200 doreboot" -nographic \
-net nic,vlan=0,model=xlnx.xps-ethernetlite,macaddr=00:16:35:AF:94:00 \
-net tap,vlan=0,ifname=tap0,script=no,downscript=no
- fix a kernel bug: add "xlnx,xps-ethernetlite-2.00.b" for compatible
with its firmware (can find it under "/sys/firmware..../compatible",
within microblaze qemu bash environments). Related diff:
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 28dbbdc..298fad3 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1236,6 +1236,7 @@ static struct of_device_id xemaclite_of_match[] = {
{ .compatible = "xlnx,opb-ethernetlite-1.01.b", },
{ .compatible = "xlnx,xps-ethernetlite-1.00.a", },
{ .compatible = "xlnx,xps-ethernetlite-2.00.a", },
+ { .compatible = "xlnx,xps-ethernetlite-2.00.b", },
{ .compatible = "xlnx,xps-ethernetlite-2.01.a", },
{ .compatible = "xlnx,xps-ethernetlite-3.00.a", },
{ /* end of list */ },
Next, I shall send related kernel patch for upstream kernel, and continue
for microbaze DejaGNU with microbaze qemu, and sorry again, I did not
finish it within this month.
Thanks.
On 10/30/14 22:04, Chen Gang wrote:
> On 10/29/14 23:58, Chen Gang wrote:
>> On 10/27/14 9:42, Chen Gang wrote:
>>> On 10/27/14 2:22, Michael Eager wrote:
>>>>
>>>> Microblaze-sim provides basic instruction set architecture and memory
>>>> simulation.
>>>> There is no operating system support. (It's also quite old. I'm not sure
>>>> which version of the MB architecture it models, but it is not recent.)
>>>>
>>>> Microblaze-sim is not a full system simulator, like QEMU. To be able to
>>>> run a program which requires glibc, you need to be able to boot a full
>>>> Linux
>>>> image on the simulator, which microblaze-sim cannot do. QEMU models an
>>>> entire processor and can boot a Linux image.
>>>>
>>
>> At present, run upstream qemu 2.1.2 and upstream Linux kernel 3.17-rc7
>> with simple ramfs successfully. Via modify ramfs, can run hello world
>> program with static glibc (built by upstream mc_gcc), successfully.
>>
>
> After copy the ramfs' "/lib" and "/usr/lib" to outside, build the hello
> world program again with the dynamic glibc, then put it to ramfs. The
> hello world program with dynamic glibc can run correctly inside qemu :-)
>
> Next, I need focus on networking (I have found qemu related device, and
> kernel related device, and I also know, it needs telnetd in busy box).
> But sorry, it seems I can not finish within this month :-(
>
> - I wasted much time resources on choosing qemu or sim, next I should
> notice about it (do not waste time, again).
>
> - and another excuse is: I have to do it in my free time (within 2.5
> hours per day, in average). My current job is not related with it
> (at present, it is about Global Platform Java applet for iPhone OS).
>
> Next month:
>
> - I should finish microblaze qemu test under DejaGNU, should finish
> within next month (2014-11-30).
>
> - I also shall start tile cross compiling for gcc/binutils, and use it
> to Linux kernel, and test it with qemu. I shall try to finish them
> within 2 months (finish before 2014-12-31).
>
> - At least, finish 1 patch for gcc, 1 patch for binutils, 1 patch for
> qemu/kvm/xen, 3 patches for kernel, within next month (2014-11-30).
>
>
> Welcome any ideas, suggestions or completions.
>
> Thanks.
>
>> - For ramfs:
>>
>> wget
>> http://www.wiki.xilinx.com/file/view/microblaze_complete.cpio.gz/419243588/microblaze_complete.cpio.gz
>>
>> - Related qemu command:
>>
>> ./microblaze-softmmu/qemu-system-microblaze -M petalogix-s3adsp1800 \
>> -kernel ../linux-stable.microblaze/arch/microblaze/boot/linux.bin \
>> -no-reboot -append "console=ttyUL0,115200 doreboot" -nographic
>>
>> Next, I shall try to let our gdb and DejaGNU work for it:
>>
>> - How to let qemu support network and rsh (ramfs need telnetd, kernel
>> may need related driver, and qemu related hardware need be tested).
>>
>> - Let gdb work for it, then config DejaGNU (need we test the program
>> with dynamic glib, it will be fail now for not match glibc version
>> in ramfs).
>>
>> - At last, run our test.
>>
>> It seems, still many things need trying. Welcome any ideas, suggestions,
>> and completions for it (especially for ramfs network and/or glibc, and
>> DejaGNU configuration ...).
>>
>>
>> Thanks.
>>
>>>
>>> OK, thank you very much, I shall rewind to qemu, and should try my best
>>> to finish within within this month.
>>>
>>>
>>
>>
>> Thanks
>>
>
--
Chen Gang
Open, share, and attitude like air, water, and life which God blessed
