On Wed, Jul 01, 2020 at 12:01:08PM +0200, Vitaly Zaitsev via devel wrote:
On 01.07.2020 11:28, Alexey A. wrote:
> Stop using the L-word, please: BIOS is not "legacy", it's just
> alternative way (one of many).
Using BIOS boot on UEFI-compatible systems is a legacy, because it works
under the CSM compatibly layer.
More information about CSM you can find here:
NB, with the OVMF UEFI firmware for KVM, there is *NO* CSM layer
IOW, If KVM is configured for UEFI, the guest OS must use UEFI boot;
if KVM is configured for legacy BIOS, the guest OS must use legacy BIOS.
Just something to be aware of if you're testing OS using KVM - it won't
replicate behaviour of bare metal UEFI setups with CSM.