e6ab83751b
This patch provides - A change to the way advance IP worked. It now also runs the the VS. - Added two new ABIs to support changing the active VM. This allows exit handlers to determine which VM they want to work with, without having to run the VM to make this change occur - Adds some sanity checks to some of the registers to ensure they are configured properly by extensions. |
||
|---|---|---|
| .. | ||
| default | ||
| default_rust | ||
| nested_paging | ||
| README.md | ||
Description
The goal of each of these examples is to provide a starting point for creating your own extensions. For more information about how to create your own extension, please see Writing Your Own Extensions.
default
This example provide the minimum extension that is needed to start/stop the hypervisor. In other words, this is your typical "Hello World" example. If you plan to implement everything yourself, this is a good starting point. This example is also the "default" example if you don't specify an extension manually in the build system.
rdtsc
TBD - demonstrates how to hook the execution of the RDTSC and RDTSCP instructions.
msr
TBD - demonstrates how to hook the execution of specific MSR instructions using the MSR bitmap.
cr
TBD - demonstrates how to hook the execution of the control registers and properly emulate their execution, including how to hide certain bits from the OS using the control register shadows.
io
TBD - demonstrates how to hook the execution of port IO instructions.
ept
TBD - basic EPT example including how to handle the MTTRs on Intel. Just enough to turn EPT on.
uefi
TBD - Provides enough EPT, Unrestricted Guest Support, CR0/CR4 and INIT/SIPI logic to start the hypervisor from UEFI and then boot Windows/Linux
interrupts
TBD - Provides an example of how to trap on external interrupts and inject them back into the root OS.
ddimon
TBD - Provides an example with functionality similar to DdiMon from HyperPlatform, capable of hooking kernel level functions and monitoring there execution.