Hyper-V support for Gentoo guests requires two important steps: kernel support and user-space graphic driver support.
This configuration is only pertinent to a Gentoo installation (guest) running inside a virtual machine.
Linux guest support
Below is a summary of the kernel features that need to be compiled into the kernel, or provided as kernel modules, to be able to correctly run Gentoo under Hyper-V. Feature names are subject to change, so be sure to search the kernel's menuconfig for features containing the string
Processor type and features ---> [*] Linux guest support ---> -*- Enable paravirtualization code [*] Paravirtualization layer for spinlocks Power management and ACPI options ---> [*] ACPI (Advanced Configuration and Power Interface) Support ---> Bus options (PCI etc.) ---> [*] PCI support [*] Message Signaled Interrupts (MSI and MSI-X) <*> Hyper-V PCI Frontend [*] Networking support ---> Networking options ---> <*> Virtual Socket protocol <*> Hyper-V transport for Virtual Sockets Device Drivers ---> Input device support ---> Hardware I/O ports ---> <*> Microsoft Synthetic Keyboard driver SCSI device support ---> SCSI Transports ---> <*> FiberChannel Transport Attributes [*] SCSI low-level drivers ---> <*> Microsoft Hyper-V virtual storage driver [*] Network device support ---> <*> Microsoft Hyper-V virtual network driver Graphics support ---> Frame buffer Devices ---> <*> Microsoft Hyper-V Synthetic Video support HID support ---> -*- HID bus support Special HID drivers ---> <*> Microsoft Hyper-V mouse driver Microsoft Hyper-V guest support ---> <*> Microsoft Hyper-V client drivers <*> Microsoft Hyper-V Utilities driver <*> Microsoft Hyper-V Balloon driver
To have all necessary options appear, there is an initial dependency chain. "Linux guest support" and "ACPI" must be enabled first in order for "Microsoft Hyper-V client drivers" to appear. "Microsoft Hyper-V client drivers" is necessary for most, if not all, other Hyper-V options to be available.
For X11 (graphical) support the CONFIG_DRM_FBDEV_EMULATION kernel option is required:
Device Drivers ---> Graphics support ---> <*> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ---> [*] Enable legacy fbdev support for your modesetting driver
If X server graphical support is desired through fbdev, be sure to adjust make.conf:
Next (re)emerge xorg-drivers package:
emerge --ask --update --newuse --deep x11-base/xorg-drivers
Removing the Hyper-V support is as simple as disabling the related kernel options (reverse the steps in the Kernel section above).
- Virtualization — the concept and technique that permits running software in an environment separate from a computer operating system.
- Xen — a native, or bare-metal, hypervisor that allows multiple distinct virtual machines (referred to as domains) to share a single physical machine.