R
2018-Jan-04 01:54 UTC
[libvirt-users] Limiting instructions for guest to help with migration to different host
Hello, I am migrating a suspended x86-64 guest (disk & state) across different x86-64 hosts with small differences in the available CPU instructions and when I try to resume the guest on the different host libvirt reports an error like this "CPU feature XXX not found" and fails. My question is, is there a way to limit the instructions that are used on the "origin" host when creating the guest to avoid this error? I am pretty sure there is a set of basic instructions that are available across all hosts which could be used for this purpose. Thank you! /R
R
2018-Jan-15 05:00 UTC
Re: [libvirt-users] Limiting instructions for guest to help with migration to different host
Hello, Does anybody have an answer for the question below? Should I provide any additional information? Thanks! /R On Wed, Jan 3, 2018 at 5:54 PM, R <r@mille4.com> wrote:> Hello, > > I am migrating a suspended x86-64 guest (disk & state) across > different x86-64 hosts with small differences in the available CPU > instructions and when I try to resume the guest on the different host > libvirt reports an error like this "CPU feature XXX not found" and > fails. My question is, is there a way to limit the instructions that > are used on the "origin" host when creating the guest to avoid this > error? I am pretty sure there is a set of basic instructions that are > available across all hosts which could be used for this purpose. > > Thank you! > > /R
Michal Privoznik
2018-Jan-15 14:42 UTC
Re: [libvirt-users] Limiting instructions for guest to help with migration to different host
On 01/04/2018 02:54 AM, R wrote:> Hello, > > I am migrating a suspended x86-64 guest (disk & state) across > different x86-64 hosts with small differences in the available CPU > instructions and when I try to resume the guest on the different host > libvirt reports an error like this "CPU feature XXX not found" and > fails. My question is, is there a way to limit the instructions that > are used on the "origin" host when creating the guest to avoid this > error? I am pretty sure there is a set of basic instructions that are > available across all hosts which could be used for this purpose. > > Thank you! >You want to take a look at specifying the guest CPU: https://libvirt.org/formatdomain.html#elementsCPU Michal