[U-Boot] qemu-system-arm segfaults on zynq_zed

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Douglas Rupp]

I'm brand new to Uboot, so hopefully this is just some missing switch.  I
did search the archive, and I was able to build and u-boot a versaatilepb
version, but xilinx-zynq-a9 is the one I really need.

u-boot-2014.10$ make zynq_zed_defconfig
u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi- ARCH=arm
u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M -nographic
-kernel u-boot-dtb.bin
Segmentation fault (core dumped)

What am I doing wrong?

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Jagan Teki]

On 24 November 2014 at 06:03, Douglas Rupp <douglas.b.rupp@gmail.com> wrote:
> I'm brand new to Uboot, so hopefully this is just some missing switch.  I
> did search the archive, and I was able to build and u-boot a versaatilepb
> version, but xilinx-zynq-a9 is the one I really need.
>
> u-boot-2014.10$ make zynq_zed_defconfig
> u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi- ARCH=arm
> u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M -nographic
> -kernel u-boot-dtb.bin
> Segmentation fault (core dumped)

I guess it may be qemu usage issue, is qemu from
https://github.com/Xilinx/qemu ?

+ Peter
Hope, he will give some inputs

>
> What am I doing wrong?

thanks!
-- 
Jagan.

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Douglas Rupp]

It's the version of qemu-system-arm downloaded for Ubuntu 14.04
Version info:
qemu-system-arm --version
QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)

I also tried the three "boot.bin" files in "2014.3-release.tar.gz"
downloaded from the Xilinx website, those in subdirectories zc70x/zc706/
and zc70x/zc702/, and zed/ .  Same command line.  Hangs with no output.

I also tried the version 2.0.0 version of qemu-system-arm from the
open-do.org website that we regular use with xlnx-zynq-a9 bsp for vxworks7,
it boots vxworks without uboot, but hangs with uboot.

You're suggesting that only the qemu-system-arm built from the xilinx repo
is functional with uboot?  I used that version of qemu about a year ago,
and it worked fine for Linux but it was an ancient version of qemu (at that
time).

On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki <jagannadh.teki@gmail.com>
wrote:

> On 24 November 2014 at 06:03, Douglas Rupp <douglas.b.rupp@gmail.com>
> wrote:
> > I'm brand new to Uboot, so hopefully this is just some missing switch.  I
> > did search the archive, and I was able to build and u-boot a versaatilepb
> > version, but xilinx-zynq-a9 is the one I really need.
> >
> > u-boot-2014.10$ make zynq_zed_defconfig
> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi- ARCH=arm
> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M -nographic
> > -kernel u-boot-dtb.bin
> > Segmentation fault (core dumped)
>
> I guess it may be qemu usage issue, is qemu from
> https://github.com/Xilinx/qemu ?
>
> + Peter
> Hope, he will give some inputs
>
> >
> > What am I doing wrong?
>
> thanks!
> --
> Jagan.
>

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Douglas Rupp]

I built qemu-system-arm from the xilinx-master branch.   xilinx-zynq-a9 is
not a supported machine. :(

On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp <douglas.b.rupp@gmail.com>
wrote:

> It's the version of qemu-system-arm downloaded for Ubuntu 14.04
> Version info:
> qemu-system-arm --version
> QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
>
> I also tried the three "boot.bin" files in "2014.3-release.tar.gz"
> downloaded from the Xilinx website, those in subdirectories zc70x/zc706/
> and zc70x/zc702/, and zed/ .  Same command line.  Hangs with no output.
>
> I also tried the version 2.0.0 version of qemu-system-arm from the
> open-do.org website that we regular use with xlnx-zynq-a9 bsp for
> vxworks7, it boots vxworks without uboot, but hangs with uboot.
>
> You're suggesting that only the qemu-system-arm built from the xilinx repo
> is functional with uboot?  I used that version of qemu about a year ago,
> and it worked fine for Linux but it was an ancient version of qemu (at that
> time).
>
> On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki <jagannadh.teki@gmail.com>
> wrote:
>
>> On 24 November 2014 at 06:03, Douglas Rupp <douglas.b.rupp@gmail.com>
>> wrote:
>> > I'm brand new to Uboot, so hopefully this is just some missing switch.
>> I
>> > did search the archive, and I was able to build and u-boot a
>> versaatilepb
>> > version, but xilinx-zynq-a9 is the one I really need.
>> >
>> > u-boot-2014.10$ make zynq_zed_defconfig
>> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi- ARCH=arm
>> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M -nographic
>> > -kernel u-boot-dtb.bin
>> > Segmentation fault (core dumped)
>>
>> I guess it may be qemu usage issue, is qemu from
>> https://github.com/Xilinx/qemu ?
>>
>> + Peter
>> Hope, he will give some inputs
>>
>> >
>> > What am I doing wrong?
>>
>> thanks!
>> --
>> Jagan.
>>
>
>

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Sören Brinkmann]

Could you try whether these instructions work?
http://www.wiki.xilinx.com/QEMU

	S?ren

On Mon, 2014-11-24 at 08:58AM -0800, Douglas Rupp wrote:
> I built qemu-system-arm from the xilinx-master branch.   xilinx-zynq-a9 is
> not a supported machine. :(
> 
> On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp <douglas.b.rupp@gmail.com>
> wrote:
> 
> > It's the version of qemu-system-arm downloaded for Ubuntu 14.04
> > Version info:
> > qemu-system-arm --version
> > QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
> >
> > I also tried the three "boot.bin" files in "2014.3-release.tar.gz"
> > downloaded from the Xilinx website, those in subdirectories zc70x/zc706/
> > and zc70x/zc702/, and zed/ .  Same command line.  Hangs with no output.
> >
> > I also tried the version 2.0.0 version of qemu-system-arm from the
> > open-do.org website that we regular use with xlnx-zynq-a9 bsp for
> > vxworks7, it boots vxworks without uboot, but hangs with uboot.
> >
> > You're suggesting that only the qemu-system-arm built from the xilinx repo
> > is functional with uboot?  I used that version of qemu about a year ago,
> > and it worked fine for Linux but it was an ancient version of qemu (at that
> > time).
> >
> > On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki <jagannadh.teki@gmail.com>
> > wrote:
> >
> >> On 24 November 2014 at 06:03, Douglas Rupp <douglas.b.rupp@gmail.com>
> >> wrote:
> >> > I'm brand new to Uboot, so hopefully this is just some missing switch.
> >> I
> >> > did search the archive, and I was able to build and u-boot a
> >> versaatilepb
> >> > version, but xilinx-zynq-a9 is the one I really need.
> >> >
> >> > u-boot-2014.10$ make zynq_zed_defconfig
> >> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi- ARCH=arm
> >> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M -nographic
> >> > -kernel u-boot-dtb.bin
> >> > Segmentation fault (core dumped)
> >>
> >> I guess it may be qemu usage issue, is qemu from
> >> https://github.com/Xilinx/qemu ?
> >>
> >> + Peter
> >> Hope, he will give some inputs
> >>
> >> >
> >> > What am I doing wrong?
> >>
> >> thanks!
> >> --
> >> Jagan.
> >>
> >
> >

> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Douglas Rupp]

The result is:

arm-softmmu/qemu-system-arm -M arm-generic-fdt -nographic -smp 2 -machine
linux=on -serial mon:stdio -dtb devicetree.dtb -kernel boot.bin
SPI device 0x7f8161521ee0
qemu: fatal: Trying to execute code outside RAM or ROM at 0xfffffff0

then a register dump

The "boot.bin" and "devicetree.dtb" is from xilinx binary release
2014.3-release/zed

I tried removing -smp 2 -machine linux=on, and same error.

On Mon, Nov 24, 2014 at 9:21 AM, S?ren Brinkmann <soren.brinkmann@xilinx.com
> wrote:

> Could you try whether these instructions work?
> http://www.wiki.xilinx.com/QEMU
>
>         S?ren
>
> On Mon, 2014-11-24 at 08:58AM -0800, Douglas Rupp wrote:
> > I built qemu-system-arm from the xilinx-master branch.   xilinx-zynq-a9
> is
> > not a supported machine. :(
> >
> > On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp <douglas.b.rupp@gmail.com>
> > wrote:
> >
> > > It's the version of qemu-system-arm downloaded for Ubuntu 14.04
> > > Version info:
> > > qemu-system-arm --version
> > > QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
> > >
> > > I also tried the three "boot.bin" files in "2014.3-release.tar.gz"
> > > downloaded from the Xilinx website, those in subdirectories
> zc70x/zc706/
> > > and zc70x/zc702/, and zed/ .  Same command line.  Hangs with no output.
> > >
> > > I also tried the version 2.0.0 version of qemu-system-arm from the
> > > open-do.org website that we regular use with xlnx-zynq-a9 bsp for
> > > vxworks7, it boots vxworks without uboot, but hangs with uboot.
> > >
> > > You're suggesting that only the qemu-system-arm built from the xilinx
> repo
> > > is functional with uboot?  I used that version of qemu about a year
> ago,
> > > and it worked fine for Linux but it was an ancient version of qemu (at
> that
> > > time).
> > >
> > > On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki <jagannadh.teki@gmail.com
> >
> > > wrote:
> > >
> > >> On 24 November 2014 at 06:03, Douglas Rupp <douglas.b.rupp@gmail.com>
> > >> wrote:
> > >> > I'm brand new to Uboot, so hopefully this is just some missing
> switch.
> > >> I
> > >> > did search the archive, and I was able to build and u-boot a
> > >> versaatilepb
> > >> > version, but xilinx-zynq-a9 is the one I really need.
> > >> >
> > >> > u-boot-2014.10$ make zynq_zed_defconfig
> > >> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi- ARCH=arm
> > >> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M
> -nographic
> > >> > -kernel u-boot-dtb.bin
> > >> > Segmentation fault (core dumped)
> > >>
> > >> I guess it may be qemu usage issue, is qemu from
> > >> https://github.com/Xilinx/qemu ?
> > >>
> > >> + Peter
> > >> Hope, he will give some inputs
> > >>
> > >> >
> > >> > What am I doing wrong?
> > >>
> > >> thanks!
> > >> --
> > >> Jagan.
> > >>
> > >
> > >
>
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot at lists.denx.de
> > http://lists.denx.de/mailman/listinfo/u-boot
>
>

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Sören Brinkmann]

I don't think boot.bin is a legal "kernel". IIRC, I had issues running
on QEMU, but it was slightly better than what you describe.

	S?ren

On Mon, 2014-11-24 at 09:40AM -0800, Douglas Rupp wrote:
>    The result is:
> 
>    arm-softmmu/qemu-system-arm -M arm-generic-fdt -nographic -smp 2 -machine
>    linux=on -serial mon:stdio -dtb devicetree.dtb -kernel boot.bin
>    SPI device 0x7f8161521ee0
>    qemu: fatal: Trying to execute code outside RAM or ROM at 0xfffffff0
>     
>    then a register dump
> 
>    The "boot.bin" and "devicetree.dtb" is from xilinx binary release
>    2014.3-release/zed
> 
>    I tried removing -smp 2 -machine linux=on, and same error.
>    On Mon, Nov 24, 2014 at 9:21 AM, S?ren Brinkmann
>    <[1]soren.brinkmann@xilinx.com> wrote:
> 
>      Could you try whether these instructions work?
>      [2]http://www.wiki.xilinx.com/QEMU
> 
>              S?ren
>      On Mon, 2014-11-24 at 08:58AM -0800, Douglas Rupp wrote:
>      > I built qemu-system-arm from the xilinx-master branch. 
>       xilinx-zynq-a9 is
>      > not a supported machine. :(
>      >
>      > On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp
>      <[3]douglas.b.rupp@gmail.com>
>      > wrote:
>      >
>      > > It's the version of qemu-system-arm downloaded for Ubuntu 14.04
>      > > Version info:
>      > > qemu-system-arm --version
>      > > QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
>      > >
>      > > I also tried the three "boot.bin" files in "2014.3-release.tar.gz"
>      > > downloaded from the Xilinx website, those in subdirectories
>      zc70x/zc706/
>      > > and zc70x/zc702/, and zed/ .  Same command line.  Hangs with no
>      output.
>      > >
>      > > I also tried the version 2.0.0 version of qemu-system-arm from the
>      > > [4]open-do.org website that we regular use with xlnx-zynq-a9 bsp for
>      > > vxworks7, it boots vxworks without uboot, but hangs with uboot.
>      > >
>      > > You're suggesting that only the qemu-system-arm built from the
>      xilinx repo
>      > > is functional with uboot?  I used that version of qemu about a year
>      ago,
>      > > and it worked fine for Linux but it was an ancient version of qemu
>      (at that
>      > > time).
>      > >
>      > > On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki
>      <[5]jagannadh.teki@gmail.com>
>      > > wrote:
>      > >
>      > >> On 24 November 2014 at 06:03, Douglas Rupp
>      <[6]douglas.b.rupp@gmail.com>
>      > >> wrote:
>      > >> > I'm brand new to Uboot, so hopefully this is just some missing
>      switch.
>      > >> I
>      > >> > did search the archive, and I was able to build and u-boot a
>      > >> versaatilepb
>      > >> > version, but xilinx-zynq-a9 is the one I really need.
>      > >> >
>      > >> > u-boot-2014.10$ make zynq_zed_defconfig
>      > >> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi- ARCH=arm
>      > >> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M
>      -nographic
>      > >> > -kernel u-boot-dtb.bin
>      > >> > Segmentation fault (core dumped)
>      > >>
>      > >> I guess it may be qemu usage issue, is qemu from
>      > >> [7]https://github.com/Xilinx/qemu ?
>      > >>
>      > >> + Peter
>      > >> Hope, he will give some inputs
>      > >>
>      > >> >
>      > >> > What am I doing wrong?
>      > >>
>      > >> thanks!
>      > >> --
>      > >> Jagan.
>      > >>
>      > >
>      > >
> 
>      > _______________________________________________
>      > U-Boot mailing list
>      > [8]U-Boot at lists.denx.de
>      > [9]http://lists.denx.de/mailman/listinfo/u-boot
> 
> Links:
> 1. mailto:soren.brinkmann at xilinx.com/
> 2. http://www.wiki.xilinx.com/QEMU
> 3. mailto:douglas.b.rupp at gmail.com/
> 4. http://open-do.org/
> 5. mailto:jagannadh.teki at gmail.com/
> 6. mailto:douglas.b.rupp at gmail.com/
> 7. https://github.com/Xilinx/qemu
> 8. mailto:U-Boot at lists.denx.de/
> 9. http://lists.denx.de/mailman/listinfo/u-boot

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Douglas Rupp]

For versatilepb arm, there's a blog post that describes a recipe of how to
build and boot "uboot.bin" in qemu.  It works fine, here's the link if
you're interested.
https://balau82.wordpress.com/2010/03/10/u-boot-for-arm-on-qemu/

I assumed that uboot was standardized enough so that it would work the same
for other machine/board emulations. I'd like to understand why it's not
working.

The problem I'm trying to solve is to configure networking in uboot for the
xilinx-zynq-a9 bsp for vxworks7 running under qemu.  Vxworks7 uses uboot
where 6.9 didn't, and the default device tree isn't set correctly for my
network, it just has some random defaults that are expected to be
customized.  The alternative is to use real hardware, which should work
well enough for debugging but in general it's much easier to debug and run
tests in qemu especially when working remotely.

So any ideas you might have on what's special about zynq utboot would be
appreciated.

On Mon, Nov 24, 2014 at 9:45 AM, S?ren Brinkmann <soren.brinkmann@xilinx.com
> wrote:

> I don't think boot.bin is a legal "kernel". IIRC, I had issues running
> on QEMU, but it was slightly better than what you describe.
>
>         S?ren
>
> On Mon, 2014-11-24 at 09:40AM -0800, Douglas Rupp wrote:
> >    The result is:
> >
> >    arm-softmmu/qemu-system-arm -M arm-generic-fdt -nographic -smp 2
> -machine
> >    linux=on -serial mon:stdio -dtb devicetree.dtb -kernel boot.bin
> >    SPI device 0x7f8161521ee0
> >    qemu: fatal: Trying to execute code outside RAM or ROM at 0xfffffff0
> >
> >    then a register dump
> >
> >    The "boot.bin" and "devicetree.dtb" is from xilinx binary release
> >    2014.3-release/zed
> >
> >    I tried removing -smp 2 -machine linux=on, and same error.
> >    On Mon, Nov 24, 2014 at 9:21 AM, S?ren Brinkmann
> >    <[1]soren.brinkmann@xilinx.com> wrote:
> >
> >      Could you try whether these instructions work?
> >      [2]http://www.wiki.xilinx.com/QEMU
> >
> >              S?ren
> >      On Mon, 2014-11-24 at 08:58AM -0800, Douglas Rupp wrote:
> >      > I built qemu-system-arm from the xilinx-master branch.
> >       xilinx-zynq-a9 is
> >      > not a supported machine. :(
> >      >
> >      > On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp
> >      <[3]douglas.b.rupp@gmail.com>
> >      > wrote:
> >      >
> >      > > It's the version of qemu-system-arm downloaded for Ubuntu 14.04
> >      > > Version info:
> >      > > qemu-system-arm --version
> >      > > QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
> >      > >
> >      > > I also tried the three "boot.bin" files in
> "2014.3-release.tar.gz"
> >      > > downloaded from the Xilinx website, those in subdirectories
> >      zc70x/zc706/
> >      > > and zc70x/zc702/, and zed/ .  Same command line.  Hangs with no
> >      output.
> >      > >
> >      > > I also tried the version 2.0.0 version of qemu-system-arm from
> the
> >      > > [4]open-do.org website that we regular use with xlnx-zynq-a9
> bsp for
> >      > > vxworks7, it boots vxworks without uboot, but hangs with uboot.
> >      > >
> >      > > You're suggesting that only the qemu-system-arm built from the
> >      xilinx repo
> >      > > is functional with uboot?  I used that version of qemu about a
> year
> >      ago,
> >      > > and it worked fine for Linux but it was an ancient version of
> qemu
> >      (at that
> >      > > time).
> >      > >
> >      > > On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki
> >      <[5]jagannadh.teki@gmail.com>
> >      > > wrote:
> >      > >
> >      > >> On 24 November 2014 at 06:03, Douglas Rupp
> >      <[6]douglas.b.rupp@gmail.com>
> >      > >> wrote:
> >      > >> > I'm brand new to Uboot, so hopefully this is just some
> missing
> >      switch.
> >      > >> I
> >      > >> > did search the archive, and I was able to build and u-boot a
> >      > >> versaatilepb
> >      > >> > version, but xilinx-zynq-a9 is the one I really need.
> >      > >> >
> >      > >> > u-boot-2014.10$ make zynq_zed_defconfig
> >      > >> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi-
> ARCH=arm
> >      > >> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M
> >      -nographic
> >      > >> > -kernel u-boot-dtb.bin
> >      > >> > Segmentation fault (core dumped)
> >      > >>
> >      > >> I guess it may be qemu usage issue, is qemu from
> >      > >> [7]https://github.com/Xilinx/qemu ?
> >      > >>
> >      > >> + Peter
> >      > >> Hope, he will give some inputs
> >      > >>
> >      > >> >
> >      > >> > What am I doing wrong?
> >      > >>
> >      > >> thanks!
> >      > >> --
> >      > >> Jagan.
> >      > >>
> >      > >
> >      > >
> >
> >      > _______________________________________________
> >      > U-Boot mailing list
> >      > [8]U-Boot at lists.denx.de
> >      > [9]http://lists.denx.de/mailman/listinfo/u-boot
> >
> > Links:
> > 1. mailto:soren.brinkmann at xilinx.com/
> > 2. http://www.wiki.xilinx.com/QEMU
> > 3. mailto:douglas.b.rupp at gmail.com/
> > 4. http://open-do.org/
> > 5. mailto:jagannadh.teki at gmail.com/
> > 6. mailto:douglas.b.rupp at gmail.com/
> > 7. https://github.com/Xilinx/qemu
> > 8. mailto:U-Boot at lists.denx.de/
> > 9. http://lists.denx.de/mailman/listinfo/u-boot
>

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Sören Brinkmann]

I suppose the uboot.bin files you are talking about are binaries that
had been converted with objcopy or similar from ELF to binary. That
probably works well. The Zynq boot.bin is a container file that contains
the Zynq bootloader and (optionally) other things (like U-Boot). I doubt
QEMU is able to parse this Zynq specific file (though, it's all
documented, so it could be implemented I guess). So, you probably want to
pass the u-boot.elf as kernel, but I don't know to what extend that works
currently. For that we need input from Peter.
For more information about the Zynq boot.bin format, please have a look
at section 6.3.2 in the Zynq TRM
(http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf)
and the Zynq SW developer guide
(http://www.xilinx.com/support/documentation/user_guides/ug821-zynq-7000-swdev.pdf).

	S?ren

On Mon, 2014-11-24 at 10:24AM -0800, Douglas Rupp wrote:
> For versatilepb arm, there's a blog post that describes a recipe of how to
> build and boot "uboot.bin" in qemu.  It works fine, here's the link if
> you're interested.
> https://balau82.wordpress.com/2010/03/10/u-boot-for-arm-on-qemu/
> 
> I assumed that uboot was standardized enough so that it would work the same
> for other machine/board emulations. I'd like to understand why it's not
> working.
> 
> The problem I'm trying to solve is to configure networking in uboot for the
> xilinx-zynq-a9 bsp for vxworks7 running under qemu.  Vxworks7 uses uboot
> where 6.9 didn't, and the default device tree isn't set correctly for my
> network, it just has some random defaults that are expected to be
> customized.  The alternative is to use real hardware, which should work
> well enough for debugging but in general it's much easier to debug and run
> tests in qemu especially when working remotely.
> 
> So any ideas you might have on what's special about zynq utboot would be
> appreciated.
> 
> On Mon, Nov 24, 2014 at 9:45 AM, S?ren Brinkmann <soren.brinkmann@xilinx.com
> > wrote:
> 
> > I don't think boot.bin is a legal "kernel". IIRC, I had issues running
> > on QEMU, but it was slightly better than what you describe.
> >
> >         S?ren
> >
> > On Mon, 2014-11-24 at 09:40AM -0800, Douglas Rupp wrote:
> > >    The result is:
> > >
> > >    arm-softmmu/qemu-system-arm -M arm-generic-fdt -nographic -smp 2
> > -machine
> > >    linux=on -serial mon:stdio -dtb devicetree.dtb -kernel boot.bin
> > >    SPI device 0x7f8161521ee0
> > >    qemu: fatal: Trying to execute code outside RAM or ROM at 0xfffffff0
> > >
> > >    then a register dump
> > >
> > >    The "boot.bin" and "devicetree.dtb" is from xilinx binary release
> > >    2014.3-release/zed
> > >
> > >    I tried removing -smp 2 -machine linux=on, and same error.
> > >    On Mon, Nov 24, 2014 at 9:21 AM, S?ren Brinkmann
> > >    <[1]soren.brinkmann@xilinx.com> wrote:
> > >
> > >      Could you try whether these instructions work?
> > >      [2]http://www.wiki.xilinx.com/QEMU
> > >
> > >              S?ren
> > >      On Mon, 2014-11-24 at 08:58AM -0800, Douglas Rupp wrote:
> > >      > I built qemu-system-arm from the xilinx-master branch.
> > >       xilinx-zynq-a9 is
> > >      > not a supported machine. :(
> > >      >
> > >      > On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp
> > >      <[3]douglas.b.rupp@gmail.com>
> > >      > wrote:
> > >      >
> > >      > > It's the version of qemu-system-arm downloaded for Ubuntu 14.04
> > >      > > Version info:
> > >      > > qemu-system-arm --version
> > >      > > QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
> > >      > >
> > >      > > I also tried the three "boot.bin" files in
> > "2014.3-release.tar.gz"
> > >      > > downloaded from the Xilinx website, those in subdirectories
> > >      zc70x/zc706/
> > >      > > and zc70x/zc702/, and zed/ .  Same command line.  Hangs with no
> > >      output.
> > >      > >
> > >      > > I also tried the version 2.0.0 version of qemu-system-arm from
> > the
> > >      > > [4]open-do.org website that we regular use with xlnx-zynq-a9
> > bsp for
> > >      > > vxworks7, it boots vxworks without uboot, but hangs with uboot.
> > >      > >
> > >      > > You're suggesting that only the qemu-system-arm built from the
> > >      xilinx repo
> > >      > > is functional with uboot?  I used that version of qemu about a
> > year
> > >      ago,
> > >      > > and it worked fine for Linux but it was an ancient version of
> > qemu
> > >      (at that
> > >      > > time).
> > >      > >
> > >      > > On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki
> > >      <[5]jagannadh.teki@gmail.com>
> > >      > > wrote:
> > >      > >
> > >      > >> On 24 November 2014 at 06:03, Douglas Rupp
> > >      <[6]douglas.b.rupp@gmail.com>
> > >      > >> wrote:
> > >      > >> > I'm brand new to Uboot, so hopefully this is just some
> > missing
> > >      switch.
> > >      > >> I
> > >      > >> > did search the archive, and I was able to build and u-boot a
> > >      > >> versaatilepb
> > >      > >> > version, but xilinx-zynq-a9 is the one I really need.
> > >      > >> >
> > >      > >> > u-boot-2014.10$ make zynq_zed_defconfig
> > >      > >> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi-
> > ARCH=arm
> > >      > >> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m 1024M
> > >      -nographic
> > >      > >> > -kernel u-boot-dtb.bin
> > >      > >> > Segmentation fault (core dumped)
> > >      > >>
> > >      > >> I guess it may be qemu usage issue, is qemu from
> > >      > >> [7]https://github.com/Xilinx/qemu ?
> > >      > >>
> > >      > >> + Peter
> > >      > >> Hope, he will give some inputs
> > >      > >>
> > >      > >> >
> > >      > >> > What am I doing wrong?
> > >      > >>
> > >      > >> thanks!
> > >      > >> --
> > >      > >> Jagan.
> > >      > >>
> > >      > >
> > >      > >
> > >
> > >      > _______________________________________________
> > >      > U-Boot mailing list
> > >      > [8]U-Boot at lists.denx.de
> > >      > [9]http://lists.denx.de/mailman/listinfo/u-boot
> > >
> > > Links:
> > > 1. mailto:soren.brinkmann at xilinx.com/
> > > 2. http://www.wiki.xilinx.com/QEMU
> > > 3. mailto:douglas.b.rupp at gmail.com/
> > > 4. http://open-do.org/
> > > 5. mailto:jagannadh.teki at gmail.com/
> > > 6. mailto:douglas.b.rupp at gmail.com/
> > > 7. https://github.com/Xilinx/qemu
> > > 8. mailto:U-Boot at lists.denx.de/
> > > 9. http://lists.denx.de/mailman/listinfo/u-boot
> >

> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot

[U-Boot] qemu-system-arm segfaults on zynq_zed

[Douglas Rupp]

I tried with a zed_zynq built u-boot.bin and u-boot.dtb built from
u-boot-2014.10 release, and got slightly different results:

qemu: fatal: Trying to execute code outside RAM or ROM at 0xfffffff0.

Then a register dump.

Oh well, thanks for the pointers in your previous message, will read for
clues.

On Mon, Nov 24, 2014 at 10:34 AM, S?ren Brinkmann <
soren.brinkmann@xilinx.com> wrote:

> I suppose the uboot.bin files you are talking about are binaries that
> had been converted with objcopy or similar from ELF to binary. That
> probably works well. The Zynq boot.bin is a container file that contains
> the Zynq bootloader and (optionally) other things (like U-Boot). I doubt
> QEMU is able to parse this Zynq specific file (though, it's all
> documented, so it could be implemented I guess). So, you probably want to
> pass the u-boot.elf as kernel, but I don't know to what extend that works
> currently. For that we need input from Peter.
> For more information about the Zynq boot.bin format, please have a look
> at section 6.3.2 in the Zynq TRM
> (
> http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
> )
> and the Zynq SW developer guide
> (
> http://www.xilinx.com/support/documentation/user_guides/ug821-zynq-7000-swdev.pdf
> ).
>
>         S?ren
>
> On Mon, 2014-11-24 at 10:24AM -0800, Douglas Rupp wrote:
> > For versatilepb arm, there's a blog post that describes a recipe of how
> to
> > build and boot "uboot.bin" in qemu.  It works fine, here's the link if
> > you're interested.
> > https://balau82.wordpress.com/2010/03/10/u-boot-for-arm-on-qemu/
> >
> > I assumed that uboot was standardized enough so that it would work the
> same
> > for other machine/board emulations. I'd like to understand why it's not
> > working.
> >
> > The problem I'm trying to solve is to configure networking in uboot for
> the
> > xilinx-zynq-a9 bsp for vxworks7 running under qemu.  Vxworks7 uses uboot
> > where 6.9 didn't, and the default device tree isn't set correctly for my
> > network, it just has some random defaults that are expected to be
> > customized.  The alternative is to use real hardware, which should work
> > well enough for debugging but in general it's much easier to debug and
> run
> > tests in qemu especially when working remotely.
> >
> > So any ideas you might have on what's special about zynq utboot would be
> > appreciated.
> >
> > On Mon, Nov 24, 2014 at 9:45 AM, S?ren Brinkmann <
> soren.brinkmann at xilinx.com
> > > wrote:
> >
> > > I don't think boot.bin is a legal "kernel". IIRC, I had issues running
> > > on QEMU, but it was slightly better than what you describe.
> > >
> > >         S?ren
> > >
> > > On Mon, 2014-11-24 at 09:40AM -0800, Douglas Rupp wrote:
> > > >    The result is:
> > > >
> > > >    arm-softmmu/qemu-system-arm -M arm-generic-fdt -nographic -smp 2
> > > -machine
> > > >    linux=on -serial mon:stdio -dtb devicetree.dtb -kernel boot.bin
> > > >    SPI device 0x7f8161521ee0
> > > >    qemu: fatal: Trying to execute code outside RAM or ROM at
> 0xfffffff0
> > > >
> > > >    then a register dump
> > > >
> > > >    The "boot.bin" and "devicetree.dtb" is from xilinx binary release
> > > >    2014.3-release/zed
> > > >
> > > >    I tried removing -smp 2 -machine linux=on, and same error.
> > > >    On Mon, Nov 24, 2014 at 9:21 AM, S?ren Brinkmann
> > > >    <[1]soren.brinkmann@xilinx.com> wrote:
> > > >
> > > >      Could you try whether these instructions work?
> > > >      [2]http://www.wiki.xilinx.com/QEMU
> > > >
> > > >              S?ren
> > > >      On Mon, 2014-11-24 at 08:58AM -0800, Douglas Rupp wrote:
> > > >      > I built qemu-system-arm from the xilinx-master branch.
> > > >       xilinx-zynq-a9 is
> > > >      > not a supported machine. :(
> > > >      >
> > > >      > On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp
> > > >      <[3]douglas.b.rupp@gmail.com>
> > > >      > wrote:
> > > >      >
> > > >      > > It's the version of qemu-system-arm downloaded for Ubuntu
> 14.04
> > > >      > > Version info:
> > > >      > > qemu-system-arm --version
> > > >      > > QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
> > > >      > >
> > > >      > > I also tried the three "boot.bin" files in
> > > "2014.3-release.tar.gz"
> > > >      > > downloaded from the Xilinx website, those in subdirectories
> > > >      zc70x/zc706/
> > > >      > > and zc70x/zc702/, and zed/ .  Same command line.  Hangs
> with no
> > > >      output.
> > > >      > >
> > > >      > > I also tried the version 2.0.0 version of qemu-system-arm
> from
> > > the
> > > >      > > [4]open-do.org website that we regular use with
> xlnx-zynq-a9
> > > bsp for
> > > >      > > vxworks7, it boots vxworks without uboot, but hangs with
> uboot.
> > > >      > >
> > > >      > > You're suggesting that only the qemu-system-arm built from
> the
> > > >      xilinx repo
> > > >      > > is functional with uboot?  I used that version of qemu
> about a
> > > year
> > > >      ago,
> > > >      > > and it worked fine for Linux but it was an ancient version
> of
> > > qemu
> > > >      (at that
> > > >      > > time).
> > > >      > >
> > > >      > > On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki
> > > >      <[5]jagannadh.teki@gmail.com>
> > > >      > > wrote:
> > > >      > >
> > > >      > >> On 24 November 2014 at 06:03, Douglas Rupp
> > > >      <[6]douglas.b.rupp@gmail.com>
> > > >      > >> wrote:
> > > >      > >> > I'm brand new to Uboot, so hopefully this is just some
> > > missing
> > > >      switch.
> > > >      > >> I
> > > >      > >> > did search the archive, and I was able to build and
> u-boot a
> > > >      > >> versaatilepb
> > > >      > >> > version, but xilinx-zynq-a9 is the one I really need.
> > > >      > >> >
> > > >      > >> > u-boot-2014.10$ make zynq_zed_defconfig
> > > >      > >> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi-
> > > ARCH=arm
> > > >      > >> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m
> 1024M
> > > >      -nographic
> > > >      > >> > -kernel u-boot-dtb.bin
> > > >      > >> > Segmentation fault (core dumped)
> > > >      > >>
> > > >      > >> I guess it may be qemu usage issue, is qemu from
> > > >      > >> [7]https://github.com/Xilinx/qemu ?
> > > >      > >>
> > > >      > >> + Peter
> > > >      > >> Hope, he will give some inputs
> > > >      > >>
> > > >      > >> >
> > > >      > >> > What am I doing wrong?
> > > >      > >>
> > > >      > >> thanks!
> > > >      > >> --
> > > >      > >> Jagan.
> > > >      > >>
> > > >      > >
> > > >      > >
> > > >
> > > >      > _______________________________________________
> > > >      > U-Boot mailing list
> > > >      > [8]U-Boot at lists.denx.de
> > > >      > [9]http://lists.denx.de/mailman/listinfo/u-boot
> > > >
> > > > Links:
> > > > 1. mailto:soren.brinkmann at xilinx.com/
> > > > 2. http://www.wiki.xilinx.com/QEMU
> > > > 3. mailto:douglas.b.rupp at gmail.com/
> > > > 4. http://open-do.org/
> > > > 5. mailto:jagannadh.teki at gmail.com/
> > > > 6. mailto:douglas.b.rupp at gmail.com/
> > > > 7. https://github.com/Xilinx/qemu
> > > > 8. mailto:U-Boot at lists.denx.de/
> > > > 9. http://lists.denx.de/mailman/listinfo/u-boot
> > >
>
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot at lists.denx.de
> > http://lists.denx.de/mailman/listinfo/u-boot
>
>

[U-Boot] qemu-system-arm segfaults on zynq_zed

[James Zhou]

Hi Douglas,

It seems to hit in the follow location:


(gdb) f 3
#3  0x00005555557c6a21 in get_page_addr_code (env1=env1 at entry=0x5555562f6100, addr=addr at entry=4294967280)
    at /xilinx/qemu/cputlb.c:325
325                cpu_abort(cpu, "Trying to execute code outside RAM or ROM at 0x"
(gdb) l 320
315            cpu_ldub_code(env1, addr);
316        }
317        pd = env1->iotlb[mmu_idx][page_index] & ~TARGET_PAGE_MASK;
318        mr = iotlb_to_region(cpu->as, pd);
319        if (memory_region_is_unassigned(mr)) {
320            CPUClass *cc = CPU_GET_CLASS(cpu);
321    
322            if (cc->do_unassigned_access) {
323                cc->do_unassigned_access(cpu, addr, false, true, 0, 4);
324            } else {
(gdb) 
325                cpu_abort(cpu, "Trying to execute code outside RAM or ROM at 0x"
326                          TARGET_FMT_lx "\n", addr);
327            }
328        }
329        p = (void *)((uintptr_t)addr + env1->tlb_table[mmu_idx][page_index].addend);
330        return qemu_ram_addr_from_host_nofail(p);
331    }
332    
333    #define MMUSUFFIX _cmmu
334    #undef GETPC

(gdb) p/x addr
$2 = 0xfffffff0


Might be a qemu issue, but not sure how it is triggered by a quick glance.


Regards,

James



Date: Mon, 24 Nov 2014 11:58:05 -0800
From: douglas.b.rupp@gmail.com
To: soren.brinkmann at xilinx.com
CC: u-boot at lists.denx.de; crosthwaitepeter at gmail.com
Subject: Re: [U-Boot] qemu-system-arm segfaults on zynq_zed

I tried with a zed_zynq built u-boot.bin and u-boot.dtb built from
u-boot-2014.10 release, and got slightly different results:
 
qemu: fatal: Trying to execute code outside RAM or ROM at 0xfffffff0.
 
Then a register dump.
 
Oh well, thanks for the pointers in your previous message, will read for
clues.
 
On Mon, Nov 24, 2014 at 10:34 AM, S?ren Brinkmann <
soren.brinkmann@xilinx.com> wrote:
 
> I suppose the uboot.bin files you are talking about are binaries that
> had been converted with objcopy or similar from ELF to binary. That
> probably works well. The Zynq boot.bin is a container file that contains
> the Zynq bootloader and (optionally) other things (like U-Boot). I doubt
> QEMU is able to parse this Zynq specific file (though, it's all
> documented, so it could be implemented I guess). So, you probably want to
> pass the u-boot.elf as kernel, but I don't know to what extend that works
> currently. For that we need input from Peter.
> For more information about the Zynq boot.bin format, please have a look
> at section 6.3.2 in the Zynq TRM
> (
> http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
> )
> and the Zynq SW developer guide
> (
> http://www.xilinx.com/support/documentation/user_guides/ug821-zynq-7000-swdev.pdf
> ).
>
>         S?ren
>
> On Mon, 2014-11-24 at 10:24AM -0800, Douglas Rupp wrote:
> > For versatilepb arm, there's a blog post that describes a recipe of how
> to
> > build and boot "uboot.bin" in qemu.  It works fine, here's the link if
> > you're interested.
> > https://balau82.wordpress.com/2010/03/10/u-boot-for-arm-on-qemu/
> >
> > I assumed that uboot was standardized enough so that it would work the
> same
> > for other machine/board emulations. I'd like to understand why it's not
> > working.
> >
> > The problem I'm trying to solve is to configure networking in uboot for
> the
> > xilinx-zynq-a9 bsp for vxworks7 running under qemu.  Vxworks7 uses uboot
> > where 6.9 didn't, and the default device tree isn't set correctly for my
> > network, it just has some random defaults that are expected to be
> > customized.  The alternative is to use real hardware, which should work
> > well enough for debugging but in general it's much easier to debug and
> run
> > tests in qemu especially when working remotely.
> >
> > So any ideas you might have on what's special about zynq utboot would be
> > appreciated.
> >
> > On Mon, Nov 24, 2014 at 9:45 AM, S?ren Brinkmann <
> soren.brinkmann at xilinx.com
> > > wrote:
> >
> > > I don't think boot.bin is a legal "kernel". IIRC, I had issues running
> > > on QEMU, but it was slightly better than what you describe.
> > >
> > >         S?ren
> > >
> > > On Mon, 2014-11-24 at 09:40AM -0800, Douglas Rupp wrote:
> > > >    The result is:
> > > >
> > > >    arm-softmmu/qemu-system-arm -M arm-generic-fdt -nographic -smp 2
> > > -machine
> > > >    linux=on -serial mon:stdio -dtb devicetree.dtb -kernel boot.bin
> > > >    SPI device 0x7f8161521ee0
> > > >    qemu: fatal: Trying to execute code outside RAM or ROM at
> 0xfffffff0
> > > >
> > > >    then a register dump
> > > >
> > > >    The "boot.bin" and "devicetree.dtb" is from xilinx binary release
> > > >    2014.3-release/zed
> > > >
> > > >    I tried removing -smp 2 -machine linux=on, and same error.
> > > >    On Mon, Nov 24, 2014 at 9:21 AM, S?ren Brinkmann
> > > >    <[1]soren.brinkmann@xilinx.com> wrote:
> > > >
> > > >      Could you try whether these instructions work?
> > > >      [2]http://www.wiki.xilinx.com/QEMU
> > > >
> > > >              S?ren
> > > >      On Mon, 2014-11-24 at 08:58AM -0800, Douglas Rupp wrote:
> > > >      > I built qemu-system-arm from the xilinx-master branch.
> > > >       xilinx-zynq-a9 is
> > > >      > not a supported machine. :(
> > > >      >
> > > >      > On Mon, Nov 24, 2014 at 7:02 AM, Douglas Rupp
> > > >      <[3]douglas.b.rupp@gmail.com>
> > > >      > wrote:
> > > >      >
> > > >      > > It's the version of qemu-system-arm downloaded for Ubuntu
> 14.04
> > > >      > > Version info:
> > > >      > > qemu-system-arm --version
> > > >      > > QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.7)
> > > >      > >
> > > >      > > I also tried the three "boot.bin" files in
> > > "2014.3-release.tar.gz"
> > > >      > > downloaded from the Xilinx website, those in subdirectories
> > > >      zc70x/zc706/
> > > >      > > and zc70x/zc702/, and zed/ .  Same command line.  Hangs
> with no
> > > >      output.
> > > >      > >
> > > >      > > I also tried the version 2.0.0 version of qemu-system-arm
> from
> > > the
> > > >      > > [4]open-do.org website that we regular use with
> xlnx-zynq-a9
> > > bsp for
> > > >      > > vxworks7, it boots vxworks without uboot, but hangs with
> uboot.
> > > >      > >
> > > >      > > You're suggesting that only the qemu-system-arm built from
> the
> > > >      xilinx repo
> > > >      > > is functional with uboot?  I used that version of qemu
> about a
> > > year
> > > >      ago,
> > > >      > > and it worked fine for Linux but it was an ancient version
> of
> > > qemu
> > > >      (at that
> > > >      > > time).
> > > >      > >
> > > >      > > On Sun, Nov 23, 2014 at 10:17 PM, Jagan Teki
> > > >      <[5]jagannadh.teki@gmail.com>
> > > >      > > wrote:
> > > >      > >
> > > >      > >> On 24 November 2014 at 06:03, Douglas Rupp
> > > >      <[6]douglas.b.rupp@gmail.com>
> > > >      > >> wrote:
> > > >      > >> > I'm brand new to Uboot, so hopefully this is just some
> > > missing
> > > >      switch.
> > > >      > >> I
> > > >      > >> > did search the archive, and I was able to build and
> u-boot a
> > > >      > >> versaatilepb
> > > >      > >> > version, but xilinx-zynq-a9 is the one I really need.
> > > >      > >> >
> > > >      > >> > u-boot-2014.10$ make zynq_zed_defconfig
> > > >      > >> > u-boot-2014.10$ make all CROSS_COMPILE=arm-none-eabi-
> > > ARCH=arm
> > > >      > >> > u-boot-2014.10$ qemu-system-arm -M xilinx-zynq-a9 -m
> 1024M
> > > >      -nographic
> > > >      > >> > -kernel u-boot-dtb.bin
> > > >      > >> > Segmentation fault (core dumped)
> > > >      > >>
> > > >      > >> I guess it may be qemu usage issue, is qemu from
> > > >      > >> [7]https://github.com/Xilinx/qemu ?
> > > >      > >>
> > > >      > >> + Peter
> > > >      > >> Hope, he will give some inputs
> > > >      > >>
> > > >      > >> >
> > > >      > >> > What am I doing wrong?
> > > >      > >>
> > > >      > >> thanks!
> > > >      > >> --
> > > >      > >> Jagan.
> > > >      > >>
> > > >      > >
> > > >      > >
> > > >
> > > >      > _______________________________________________
> > > >      > U-Boot mailing list
> > > >      > [8]U-Boot at lists.denx.de
> > > >      > [9]http://lists.denx.de/mailman/listinfo/u-boot
> > > >
> > > > Links:
> > > > 1. mailto:soren.brinkmann at xilinx.com/
> > > > 2. http://www.wiki.xilinx.com/QEMU
> > > > 3. mailto:douglas.b.rupp at gmail.com/
> > > > 4. http://open-do.org/
> > > > 5. mailto:jagannadh.teki at gmail.com/
> > > > 6. mailto:douglas.b.rupp at gmail.com/
> > > > 7. https://github.com/Xilinx/qemu
> > > > 8. mailto:U-Boot at lists.denx.de/
> > > > 9. http://lists.denx.de/mailman/listinfo/u-boot
> > >
>
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot at lists.denx.de
> > http://lists.denx.de/mailman/listinfo/u-boot
>
>

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