EFI version of DBVM

[buraktamturk]

Hello,

Is there any compiled version of EFI DBVM loader? Or is there any instructuons about how can I compile it? Does it support loading Windows after it is loaded by EFI?

Thank you,

[cheat-engine]

It's been a while that i worked on it and will likely need some fixes to work with the new LoadedOS struct
But basically you just need a bootloader that can load the dbvm.efi and afterwards launch the windows efi
i used to use the open source efi loader 'rEFInd' to do that

[buraktamturk]

Thank you so much for your response.

I am volunteer to update the loadedos struct. Can you point out where to find dbvm.efi (if it is compiled somewhere)? And how to compile it? (the tooling: gnu make? cmake? gcc? visual studio?)

Thank you,

[cheat-engine]

I found an old DBVMUEFI.EFI file in my worksystem from end 2017 (so that should say how old it is)
DBVMUEFI.zip

It will need a version of vmdisk.img in the rootpath or efi path (not sure which one, best do both lol)

As for compiling, I use eclipse with the CDT package(for C/C++ support), and have added the EFI header files to my system(gnu-efi package)

Oh yes, I see eclipse swapped out the compilers and linkers with the default when you open them
for compiler use clang (not gcc)
for linker use ld (not gcc)
for assembler use nasm (with additional parameter -f elf64 -g)

And second, there 'may' be a change in the way the paging system is setup for DBVM when it loads so that needs to be adjusted as well.
But to make it easier: Look at how it's done for windows. It's basically the same thing: https://github.com/cheat-engine/cheat-engine/blob/master/DBKKernel/vmxoffload.c

[cheat-engine]

Just updating that the current github project will work with the latest DBVM

[cheat-engine]

Here's the contents of my EFI bootdisk
dbvmefi.zip

[buraktamturk]

Thanks! I am closing the issue as anyone interested on the file can access it via GitHub issues search.