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docs: update virt/vm

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lukas 2025-06-03 18:45:32 +00:00
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title: Machine definition title: Machine definition
description: Virtual machine hardware description: Virtual machine hardware
published: true published: true
date: 2025-06-03T18:37:54.590Z date: 2025-06-03T18:45:30.585Z
tags: tags:
editor: markdown editor: markdown
dateCreated: 2025-06-01T17:37:29.262Z dateCreated: 2025-06-01T17:37:29.262Z
@ -231,6 +231,8 @@ The *KVM clock* timer has a catchup policy, which means that a paused guest whos
> On non realtime kernel, the KVM clock is updated every 5 minutes for all vCPUs, which may not be enough for accurate timekeeping. For that reason, "[Red Hat recommends running NTP in the virtual machine if accurate timekeeping is required](https://access.redhat.com/solutions/27865)" > On non realtime kernel, the KVM clock is updated every 5 minutes for all vCPUs, which may not be enough for accurate timekeeping. For that reason, "[Red Hat recommends running NTP in the virtual machine if accurate timekeeping is required](https://access.redhat.com/solutions/27865)"
{.is-info} {.is-info}
- [Timekeeping Virtualization for X86-Based Architectures](https://docs.kernel.org/virt/kvm/x86/timekeeping.html) ### Resources
- Linux Kernel documentation: [Timekeeping Virtualization for X86-Based Architectures](https://docs.kernel.org/virt/kvm/x86/timekeeping.html)
- SUSE documentation: [VM Guest clock settings](https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-kvm-managing-clock.html#) - SUSE documentation: [VM Guest clock settings](https://documentation.suse.com/sles/15-SP3/html/SLES-all/sec-kvm-managing-clock.html#)
- [Best practices for accurate timekeeping for Red Hat Enterprise Linux running on Red Hat Virtualization](https://access.redhat.com/solutions/27865) - [Best practices for accurate timekeeping for Red Hat Enterprise Linux running on Red Hat Virtualization](https://access.redhat.com/solutions/27865)