ACPI requires UEFI on this architecture arm kvm

ACPI (Advanced Configuration and Power Interface) is a standard for power management and configuration of hardware and software in a computer system. UEFI (Unified Extensible Firmware Interface) is a type of firmware that replaces the traditional BIOS (Basic Input/Output System) and provides improved boot and system management capabilities.

On the ARM architecture with KVM virtualization, ACPI requires UEFI to be used as the firmware interface. This is because UEFI provides better support for ACPI and enables better power management and device configuration in virtualized environments.

Therefore, if you are using KVM on an ARM architecture system, it is recommended to use UEFI firmware rather than the traditional BIOS. This will ensure proper ACPI functionality and enable better performance and power management in virtualized environments.