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  Limiting Memory assigned to Xen
Posted by: terryoneal3 - 08-09-2016, 06:00 PM - Forum: Public Support - Replies (5)

I'm trying to get Xen to leave 1MB or so at the top of memory that can be used outside of Xen, Dom0, or guests. Think R5 or or a PL master that needs some memory to use independent of the rest of the system.  How can this be accomplished?

I see the mem= command line option, but when I specify that to be 2047M, xl info still shows a full 2GB of memory listed in "total_memory" - I would expect total_memory to be 2047 instead of 2048. 


Here is the output of xl info:



root@Xilinx-ZCU102-2016_1:~# xl info
host                   : Xilinx-ZCU102-2016_1
release                : 4.4.0
version                : #2 SMP Thu Aug 4 16:07:59 EDT 2016
machine                : aarch64
nr_cpus                : 4
max_cpu_id             : 127
nr_nodes               : 1
cores_per_socket       : 1
threads_per_core       : 1
cpu_mhz                : 100
hw_caps                : 00000000:00000000:00000000:00000000:00000000:00000000:00000000:00000000
virt_caps              :
total_memory           : 2048
free_memory            : 1506
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 7
xen_extra              : -unstable
xen_version            : 4.7-unstable
xen_caps               : xen-3.0-aarch64 xen-3.0-armv7l
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0x200000
xen_changeset          :
xen_commandline        : console=dtuart dtuart=serial0 mem=2047M dom0_mem=512M bootscrub=0 maxcpus=1 timer_slop=0 dom0_vcpus_pin dom0_max_vcpus=1
cc_compiler            : aarch64-linux-gnu-gcc (crosstool-NG linaro-1.13.1-4.9-2014.09 -
cc_compile_by          : xilinxfae
cc_compile_domain      :
cc_compile_date        : Thu Aug  4 15:52:32 EDT 2016
xend_config_format     : 4
root@Xilinx-ZCU102-2016_1:~#



Does anyone see what I'm doing wrong, or is this command line option not supported?


Thanks, 
Terry

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  Xentrace/Xenalyze Guide
Posted by: ben_sanda - 07-11-2016, 05:13 PM - Forum: Knowledge Base - No Replies

Here is a guide on how to use the patched Xentrace/Xenalyze tools on XZD.

-Ben Sanda



Attached Files
.pdf   Xen Zynq Distribution (XZD) Xentrace How To Guide.pdf (Size: 91.06 KB / Downloads: 39)
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  XZD_20160701-RC2 Release
Posted by: jarvis_roach - 07-07-2016, 07:45 PM - Forum: Knowledge Base - No Replies

DornerWorks is pleased to announce the XZD_20160701-RC2  release of XZD!

XZD Package:  http://dornerworks.com/wp-content/upload...01-RC2.tgz
User's Manual:  http://dornerworks.com/wp-content/upload...Manual.pdf


New Features
Support for Petalinux v2016.1
Instructions for setting up shared memory between guests.
XenTop enabled and instructions provided for use.
SD card booting instructions and inclusion of pre-built images.
Inclusion of GPIO IRQ latency native and batemetal guests.

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  FreeRTOS Guest
Posted by: salerio - 05-18-2016, 07:47 PM - Forum: Public Support - Replies (2)

Hi, any updates as to when a FreeRTOS Guest may be available? Thanks Peter

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  Problem with accessing root file system on SD card
Posted by: salerio - 05-03-2016, 09:14 AM - Forum: Public Support - Replies (6)

Hi, I have just started to work with UltraScale+ MPSoC and have a Rev C.1 ZCU102 supplied by Xilinx. I am starting out with Xen and trying to follow the latest User Manual (v0.6 March 31 2016) together with the latest BETA (XenZynqDist-Beta_02_19_2016) of the Xen distribution. I have followed the instructions and can boot the ZCU102 via JTAG, the kernel however panics when it tries to access the root file system on the SD Card (I have copied Dom0.img to my 8Gb SD Card). I noticied that there has been another thread (from 2015) about this issue. Has any progress been made to solve this issue?

I have attached the console output of the boot.

Thanks in advance
Peter Smith
XZD beta_[b]XZD beta_04_01_2016 Release[b]XZD beta_04_01_2016 Release[/b]04_01_2016 Release[/b]



Attached Files
.txt   Xen MMC Problem.txt (Size: 22.33 KB / Downloads: 13)
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  Failed to boot XenZynqDist-Beta_02_19_2016 in QEMU
Posted by: akhil.mv - 04-14-2016, 06:53 AM - Forum: Public Support - Replies (8)

Hi all,
I am trying to boot XenZynqDist-Beta_02_19_2016 pre-built images in QEMU for Xilinx ultrascale+ MPSoC. But system failed to boot properly.
Hangs at boot loader with the following message
scanning bus for devices...
Found 0 device(s).
Net:   Gem.ff0e0000
Hit any key to stop autoboot:  0 
PHY is not detected
Gem.ff0e0000: No link.
ZynqMP> 

Do I need to configure anything in host OS(Ubuntu 14.04) to get the GEM link properly? The command line that I have used  to launch qemu is give below:
qemu-system-aarch64 -L $RELEASE_DIR/petalinux-v2015.4-final/etc/qemu -M arm-generic-fdt -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4 -serial monConfusedtdio -serial /dev/null -display none -device loader,file=$RELEASE_DIR/dist/images/linux/bl31.elf,cpu=0 -device loader,file=$RELEASE_DIR/dist/images/linux/u-boot.elf -gdb tcp::9000 -tftp /tftpboot -drive file=$RELEASE_DIR/dist/images/dom0.img,format=raw,if=sd -redir tcp:2222::22 -net nic,vlan=0 -net user,vlan=0 -net nic,vlan=0 -net nic,vlan=0 -net nic,vlan=0 -hw-dtb $RELEASE_DIR/dist/images/linux/zynqmp-qemu-arm.dtb -pflash $RELEASE_DIR/dist/images/linux/nand0.qcow2


Thanks
Akhil

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  XZD beta_04_01_2016 Release
Posted by: jarvis_roach - 04-01-2016, 06:00 PM - Forum: Knowledge Base - No Replies

DornerWorks is pleased to announce new content for the Xen Zynq Distribution:

User's Manual: http://dornerworks.com/wp-content/upload...Manual.pdf
uC/OS-III Guest: http://xzdforums.dornerworks.com/showthread.php?tid=591
lwIP Echo Server Guest: http://xzdforums.dornerworks.com/showthread.php?tid=590

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Photo uC/OS III Running as a Xen Guest on Zynq MPSoC!
Posted by: joshwhitehead - 03-31-2016, 10:27 PM - Forum: Knowledge Base - Replies (2)

DornerWorks is excited to announce that the Micrium real-time micro-kernel, uC/OS III, has been successfully booted as a guest operating system for the Xen Hypervisor on the Zynq UltraScale+ MPSoC!  This was accomplished on both the ZCU102 development board from Xilinx and the Zynq UltraScale+ MPSoC QEMU model provided by Xilinx.  

Screenshot
Below you can see the output from a couple different runs of uC/OS in the left hand console. Xen was configured to pass through a hardware serial UART device to the uC/OS guest domain that it could then use to display its output.  On the right is the Xen dom0 domain console showing the control commands being made to Xen: 

[Image: y3kvWwd.png]

Available Soon
DornerWorks is currently working with Micrium and Xilinx to provide the appropriate source code, tools, and instructions needed support this guest operating system, and we will update here as soon as these resources are publicly available.  Check back often for updates one when this and other guest operating systems will be supported by XZD.

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  lwIP Echo Server Guest Guide
Posted by: jarvis_roach - 03-31-2016, 04:31 PM - Forum: Knowledge Base - No Replies

Attached is a guide on how to run Xilinx's lwIP Echo Server application as a bare metal guest on Xen along with pre-built binaries and configuration files.

-Jarvis Roach



Attached Files
.zip   baremetal_enet.zip (Size: 143.81 KB / Downloads: 28)
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  Question about Booting ZCU012 using XZD
Posted by: lcc014 - 02-26-2016, 06:46 PM - Forum: Public Support - Replies (32)

Hi,

I am in Section 4.2 (Booting the ZCU012), step 1, sub-step c.  This particular step is to convert/copy dom0,img to SD card via "dd" command.  The whole SD card becomes dom0 file system.  When ZCU102 boots up, it uses SD card as the file system.

We would like to install dom0 in RAM disk instead of SD card.  Any suggestion to achieve that ?

Thanks,

Ching-Ho Cheng

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