Because I wanna to use serial to communicate with OVMF via QEMU, I tried to search a workable serial port emulator for free

The first choice is com0com but seems the project owner cannot resign its driver for Windows 10 without need to enabling TESTSIGNING mode or disabling SecureBoot, but the both workaround are not accepable. Fortunately, there is a workable signed driver provided by PETE’S BLOG.

Because of a request from our customer, try to study is it possible to support source level debug with Ovmf firmware on QEMU.