Hi, Right now KVM/QEMU relies on hard coded values in Seabios for the reserved area for the TSS pages and the EPT page. I'd like to suggest we change this to pass the value from QEMU via qemu-cfg making it possible to move it around dynamically in the future. Attached is a patch to Seabios for this, which defaults to the current hard coded value if no value is provided by qemu-cfg. We can remove the backwards compatibility later. I'll post the QEMU patches for upstream QEMU and QEMU-KVM in a minute. Comments most welcome! Cheers, Jes