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SeaBIOS also runs inside an emulator; it is the default BIOS for the QEMU and KVM virtualization environments, and can be used with the Bochs emulator. It is also included in some Chromebooks , although it is not used by ChromeOS .
KVM (Kernel-based Virtual Machine) is a FreeBSD and Linux kernel module that allows a user space program access to the hardware virtualization features of various processors, with which QEMU can offer virtualization for x86, PowerPC, and S/390 guests. When the target architecture is the same as the host architecture, QEMU can make use of KVM ...
Kernel-based Virtual Machine (KVM) is a free and open-source virtualization module in the Linux kernel that allows the kernel to function as a hypervisor. It was merged into the mainline Linux kernel in version 2.6.20, which was released on February 5, 2007. [1] KVM requires a processor with hardware virtualization extensions, such as Intel VT ...
Supported guest OS drivers Method of operation Typical use Speed relative to host OS Commercial support available Containers, or Zones Yes, over 500-way on current systems No Uses native device drivers Operating system-level virtualization: Server consolidation with workload isolation, single workload containment, hosting, dev/test/prod Near native
Dynamic Kernel Module Support (DKMS) is a program/framework that enables generating Linux kernel modules whose sources generally reside outside the kernel source tree. The concept is to have DKMS modules automatically rebuilt when a new kernel is installed.
The vast majority of Intel server chips of the Xeon E3, Xeon E5, and Xeon E7 product lines support VT-d. The first—and least powerful—Xeon to support VT-d was the E5502 launched Q1'09 with two cores at 1.86 GHz on a 45 nm process. [2]
libvirt is an open-source API, daemon and management tool for managing platform virtualization. [3] It can be used to manage KVM, Xen, VMware ESXi, QEMU and other virtualization technologies.
Without MBE, each entrance from unsigned usermode execution to signed kernelmode execution must be accompanied by a VM exit to the hypervisor to perform a switch to the kernelmode page table. On the reverse operation, an exit from signed kernelmode to unsigned usermode must be accompanied by a VM exit to perform another page table switch.