Hi Douglas,
It seems to hit in the follow location:
(gdb) f 3
#3 0x00005555557c6a21 in get_page_addr_code (env1=env1@entry=0x5555562f6100,
addr=addr@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.r...@gmail.com
To: soren.brinkm...@xilinx.com
CC: u-boot@lists.denx.de; crosthwaitepe...@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, Sören Brinkmann <
soren.brinkm...@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
> ).
>
> Sören
>
> 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, Sören Brinkmann <
> soren.brinkm...@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.
> > >
> > > Sören
> > >
> > > 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, Sören Brinkmann
> > > > <[1]soren.brinkm...@xilinx.com> wrote:
> > > >
> > > > Could you try whether these instructions work?
> > > > [2]http://www.wiki.xilinx.com/QEMU
> > > >
> > > > Sören
> > > > 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.r...@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.t...@gmail.com>
> > > > > > wrote:
> > > > > >
> > > > > >> On 24 November 2014 at 06:03, Douglas Rupp
> > > > <[6]douglas.b.r...@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@lists.denx.de
> > > > > [9]http://lists.denx.de/mailman/listinfo/u-boot
> > > >
> > > > Links:
> > > > 1. mailto:soren.brinkm...@xilinx.com/
> > > > 2. http://www.wiki.xilinx.com/QEMU
> > > > 3. mailto:douglas.b.r...@gmail.com/
> > > > 4. http://open-do.org/
> > > > 5. mailto:jagannadh.t...@gmail.com/
> > > > 6. mailto:douglas.b.r...@gmail.com/
> > > > 7. https://github.com/Xilinx/qemu
> > > > 8. mailto:U-Boot@lists.denx.de/
> > > > 9. http://lists.denx.de/mailman/listinfo/u-boot
> > >
>
> > _______________________________________________
> > U-Boot mailing list
> > U-Boot@lists.denx.de
> > http://lists.denx.de/mailman/listinfo/u-boot
>
>
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