Questions tagged [xen]
XEN is a hypervisor based virtualization technique.
220 questions
0 votes
0 answers
51 views
shared mem synchronization with xen
I use xen with a buildroot on the CPU0 and a baremetal written in C on the CPU1. The arch is ARM64. The shared mem works with 1k of pages (an array of 4096 values). I am trying to send data from the ...
- 61
0 votes
1 answer
700 views
How to create a VM in xcp-ng?
I want to create a VM by using a VM template on xcp-ng 8.2. I was able to do this yesterday but today, the same command isn't working. I'm new to server administration so I want to believe this fix ...
- 1
1 vote
0 answers
47 views
How does Xen validate exception handlers installed by Guest OSes?
I don't understand a part of the paper Xen and the art of Virtualization. On the topic of virtualizing exception handling (section 2.1.2), the paper states that each guest OS can register a table that ...
- 73
3 votes
1 answer
1k views
How to format NVMe drive in Linux suitable for raid 1 and lvm on xen Host
I want to create a software raid on two identical SSDs How do I create partitions and format them optimal? lsblk nvme0n1 259:0 0 953.9G 0 disk nvme1n1 259:1 0 953.9G 0 ...
- 30.6k
1 vote
1 answer
270 views
Install base Linux on KVM virtualized hardware (dom0)
Goal: I would like to install my main Linux distro on top of KVM, equivalent to dom0 in Xen hypervisor parlance. I know that running an OS on top of a hypervisor is not uncommon and that KVM has been ...
- 270
2 votes
1 answer
376 views
How does XEN work without VHE on ARM?
XEN has support for ARM and it is also possible to run it on a cpu without VHE (virtual hardware extension) cap that was introduced with ARMV8.1-A extension. As I understand linux kernel of a guest vm ...
- 83
1 vote
2 answers
424 views
Xen DomO Has Network But DomU Does Not
My server lost power last night so was abruptly shut down. Bringing it back up this morning my xen dom0 can connect to network, but my domU cannot. Tried full reboots of Dom0 and DomU. Only DomU on ...
- 93
1 vote
1 answer
307 views
No keyboard in Xorg in Xen domU
I am using XEN 4.14.5 for Debian Bullseye in dom0, and my domU is Devuan Chimaera (a fork of Debian Bullseye). I connect to the VNC server for the domU, and everything works before starting X11. (...
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