HyveMind

A bare-metal x86-64 hypervisor using Intel's Virtual Machine Extensions.

To run with information being printed:

make qemu_run_hdd_uefi QUIET=1 DEBUG_BUILD=1

Currently working on:

• Implementing support to directly boot and run Linux bzImage kernels via the 32-bit Linux x86 boot protocol.

Completed features:

• Checking CPU capabilities (VMX support, etc.) for the BSP and APs
• UART driver for serial output
  • including coloring via ANSI escape sequences
• Bitmap page-frame allocator
• Power-of-two freelist heap allocator
• 4-level paging
  • replacing boot loader provided page tables with custom tables
• x2apic initialization
• GDT/IDT/TSS setup
• Basic spinlock implementation
• Basic per-cpu variables support

Virtualization specific:

• Entering & leaving VMX operation
• Verifying VMX capabilities (e.g. EPT support)
• Creating and validating VMX policies that specify which features a VM wants to use
• Initializing VMCS execution control fields
• Initializing the VMCS host state area
• Initializing register & non-register VMCS guest state according to the type of guest
• Basic VM-entry and VM-exit handlers
• Creating an EPT mapping for a VM
  • Copying data into the guest addr space
• Parsing and validating a bzImage kernel image
• Loading the kernel image into a VM's memory