A problem with live migration of UEFI virtual machines


"wuchenye1995
 

Hi all,
We found a problem with live migration of UEFI virtual machines due to size of OVMF.fd changes.
Specifically, the size of OVMF.fd in edk with low version such as edk-2.0-25 is *2MB* while the size of it in higher version such as edk-2.0-30 is *4MB*.
When we migrate a UEFI virtual machine from the host with low version of edk2 to the host with higher one, qemu component will report an error in function *qemu_ram_resize* while
checking size of ovmf_pcbios: *Length mismatch: pc.bios: 0x200000 in != 0x400000: Invalid argument.*
** We want to know how to solve this problem after updating the version of edk2.
Thank you.

Chenye Wu                                                                                                                                                                                                                                                             2020.2.12

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