Re: [PATCH 00/10] Add Allwinner H3 SoC and Orange Pi PC Machine

[Niek Linnenbank <nieklinnenbank@gmail.com>]

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Hi Philippe,

On Tue, Dec 10, 2019 at 9:26 AM Philippe Mathieu-Daudé <philmd@redhat.com>
wrote:

> On 12/9/19 10:37 PM, Niek Linnenbank wrote:
> > Hi Philippe,
> >
> > On Tue, Dec 3, 2019 at 9:47 AM Philippe Mathieu-Daudé <philmd@redhat.com
> > <mailto:philmd@redhat.com>> wrote:
> >
> >     On 12/2/19 10:09 PM, Niek Linnenbank wrote:
> >      > Dear QEMU developers,
> >      >
> >      > Hereby I would like to contribute the following set of patches to
> >     QEMU
> >      > which add support for the Allwinner H3 System on Chip and the
> >      > Orange Pi PC machine. The following features and devices are
> >     supported:
> >      >
> >      >   * SMP (Quad Core Cortex A7)
> >      >   * Generic Interrupt Controller configuration
> >      >   * SRAM mappings
> >      >   * Timer device (re-used from Allwinner A10)
> >      >   * UART
> >      >   * SD/MMC storage controller
> >      >   * EMAC ethernet connectivity
> >      >   * USB 2.0 interfaces
> >      >   * Clock Control Unit
> >      >   * System Control module
> >      >   * Security Identifier device
> >
> >     Awesome!
> >
> >      > Functionality related to graphical output such as HDMI, GPU,
> >      > Display Engine and audio are not included. Recently released
> >      > mainline Linux kernels (4.19 up to latest master) and mainline
> U-Boot
> >      > are known to work. The SD/MMC code is tested using bonnie++ and
> >      > various tools such as fsck, dd and fdisk. The EMAC is verified
> >     with iperf3
> >      > using -netdev socket.
> >      >
> >      > To build a Linux mainline kernel that can be booted by the Orange
> >     Pi PC
> >      > machine, simply configure the kernel using the sunxi_defconfig
> >     configuration:
> >      >   $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make mrproper
> >      >   $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make sunxi_defconfig
> >      >
> >      > To be able to use USB storage, you need to manually enable the
> >     corresponding
> >      > configuration item. Start the kconfig configuration tool:
> >      >   $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make menuconfig
> >      >
> >      > Navigate to the following item, enable it and save your
> >     configuration:
> >      >   Device Drivers > USB support > USB Mass Storage support
> >      >
> >      > Build the Linux kernel with:
> >      >   $ ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make -j5
> >      >
> >      > To boot the newly build linux kernel in QEMU with the Orange Pi
> >     PC machine, use:
> >      >   $ qemu-system-arm -M orangepi -m 512 -nic user -nographic \
> >      >       -kernel /path/to/linux/arch/arm/boot/zImage \
> >      >       -append 'console=ttyS0,115200' \
> >      >       -dtb
> /path/to/linux/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dtb
> >      >
> >      > Note that this kernel does not have a root filesystem. You may
> >     provide it
> >      > with an official Orange Pi PC image [1] either as an SD card or as
> >      > USB mass storage. To boot using the Orange Pi PC Debian image on
> >     SD card,
> >      > simply add the -sd argument and provide the proper root= kernel
> >     parameter:
> >      >   $ qemu-system-arm -M orangepi -m 512 -nic user -nographic \
> >      >       -kernel /path/to/linux/arch/arm/boot/zImage \
> >      >       -append 'console=ttyS0,115200 root=/dev/mmcblk0p2' \
> >      >       -dtb
> >     /path/to/linux/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dtb \
> >      >       -sd OrangePi_pc_debian_stretch_server_linux5.3.5_v1.0.img
> >      >
> >      > Alternatively, you can also choose to build and boot a recent
> >     buildroot [2]
> >      > using the orangepi_pc_defconfig or Armbian image [3] for Orange
> >     Pi PC.
> >
> >     Richard, trying the Armbian image from
> >     https://apt.armbian.com/pool/main/l/linux-4.20.7-sunxi/ I get:
> >
> >     $ arm-softmmu/qemu-system-arm -M orangepi -m 512 -nic user \
> >         -append 'console=ttyS0,115200' \
> >         -kernel boot/vmlinuz-4.20.7-sunxi \
> >         -dtb usr/lib/linux-image-dev-sunxi/sun8i-h3-orangepi-pc.dtb \
> >         -serial stdio -d unimp
> >     Uncompressing Linux... done, booting the kernel.
> >     rtc: unimplemented device write (size 4, value 0x16aa0001, offset
> 0x0)
> >     rtc: unimplemented device read (size 4, offset 0x0)
> >     rtc: unimplemented device read (size 4, offset 0x0)
> >     rtc: unimplemented device read (size 4, offset 0x8)
> >     qemu-system-arm: target/arm/helper.c:11359: cpu_get_tb_cpu_state:
> >     Assertion `flags == rebuild_hflags_internal(env)' failed.
> >     Aborted (core dumped)
> >
> >
> > I'm trying to reproduce the error you reported here with my patch set on
> > latest master,
> > but so far without any result. The host OS I'm using is Ubuntu 18.04.3
> > LTS on x86_64.
> > I ran several times using the same 4.20.7-sunxi kernel and same command
> > line.
> >
> > Some questions that might help:
> > 1) Are there any specific steps you did in order to produce this error?
>
> I build QEMU with:
>
> ./configure --enable-trace-backends=log --extra-cflags=-ggdb --enable-debug
>
> > 2) Could this be a known / existing issue?
> > 3) How many times did you see this error?
>
> Always
>
> > 4) Are you also using Ubuntu 18.04.3 LTS on x86_64, or a different host
> OS?
>
> Host is Fedora 30.
>

OK thanks, I will try again using the info above after I finished reworking
the other patch comments.

Niek


>
> >
> > Regards,
> > Niek
>
>

-- 
Niek Linnenbank

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