Chapter 2. Host system requirements for real-time virtualization

To host real-time VMs, RHEL 10 systems must meet the following requirements:

Real-time kernel
To configure your RHEL 10 host as a real-time system, you must install the real-time kernel. For instructions, see Installing RHEL for Real Time.
In addition, you must install the tuned-profiles-nfv on the host.
```
dnf install tuned-profiles-nfv
```
```
# dnf install tuned-profiles-nfv
```
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Virtualization
The RHEL 10 virtualization packages must be installed on your host. For instructions, see Enabling virtualization.
BIOS
To successfully deploy and run real-time virtual machines, the system BIOS of your host must be configured for minimum latency. To do so, follow the instructions specific to the hardware model of your host machine. For example:
- For Dell, see Configuring Dell PowerEdge Servers for low latency
- For HP, see Configuring and tuning HPE ProLiant Servers for low-latency applications
Specific low-latency settings vary across different vendors and models, but in general, steps for minimizing latency include the following:
- Disable advanced Hardware Power Management options. These provide more control over various specific power management aspects, but might also cause latency spikes.
- Disable lower CPU power states, such as C-states or C1E.
  Important
  Some low-latency BIOS guides might recommend disabling virtualization. However, this step must be skipped for real-time VMs to work correctly on your host.