[edk2-devel] A problem with live migration of UEFI virtual machines
Alex Bennée
alex.bennee at linaro.org
Tue Feb 11 17:39:59 UTC 2020
wuchenye1995 <wuchenye1995 at gmail.com> writes:
> 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.
You can only migrate a machine that is identical - so instantiating a
empty machine with a different EDK image is bound to cause a problem
because the machines don't match.
--
Alex Bennée
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