Hi, Your recent patch
https://github.com/qemu/qemu/commit/12e9493df9242a2051701e7eb64175d4e904acba#diff-d98f9b48cc332d226892f0db74a86b87 to the file target/i386/whpx-all.c <https://github.com/qemu/qemu/blob/master/target/i386/whpx-all.c> breaks compilation when WHPX is enabled. Please add #include "hw/boards.h" to the #include section of the above file again to fix it.
