performance: 0.963
boot: 0.913
network: 0.876
peripherals: 0.839
device: 0.826
architecture: 0.776
virtual: 0.680
graphic: 0.652
kernel: 0.586
mistranslation: 0.585
vnc: 0.546
arm: 0.474
semantic: 0.473
user-level: 0.449
debug: 0.417
socket: 0.411
permissions: 0.390
register: 0.359
risc-v: 0.351
hypervisor: 0.329
VMM: 0.316
PID: 0.301
i386: 0.297
ppc: 0.283
x86: 0.277
assembly: 0.221
files: 0.208
TCG: 0.156
KVM: 0.127

Boot with OVMF extremely slow to bootloader

I have used Arch Linux in the past with the same version (2.5.0), the exact same OVMF code and vars, and the exact same VM settings with no issues. Now with Ubuntu, I am having the issue where boot up until Windows takes about 10x longer. Every CPU thread/core allocated gets used 100% while this is happening. After that, everything operates as normal. There is no abnormal logs produced by qemu, or I don't know how to debug.

Here are my settings:

Host:
Ubuntu 16.04
Qemu 2.5.0
Relevant configs attached

Guest:
Windows 10
VirtIO raw disk image
VirtIO network
Typical VGA passthrough setup, everything operating normally



I've solved the problem by using the ovmf package in apt instead of the firmware I've had before. Apparently, the older firmware was only compatible with an older kernel, and a newer kernel with the older firmware would cause the issue.