diff --git a/virt/lexicon.md b/virt/lexicon.md index a79aa5e..3286774 100644 --- a/virt/lexicon.md +++ b/virt/lexicon.md @@ -2,7 +2,7 @@ title: Lexicon description: published: true -date: 2022-01-14T10:47:46.633Z +date: 2022-01-17T16:32:45.665Z tags: editor: markdown dateCreated: 2021-11-13T11:58:43.776Z @@ -65,12 +65,12 @@ Devices are computer components that can be attached to machines. They can be cl | *Design* | Specific | Specific | Generic | | *Type* | Silicon-based | Software-based | Software-based | -* Physical +* **Physical** * Physical components refer to devices that can be attached to a system. For instance, a dedicated physical graphics card attached to a physical system can be directly attached to a virtual machine, which then becomes responsible for managing it, a technique called *passthrough*. The PCI-SIG standards provide IOMMU-related specifications to allow a host operating system to not have a driver for a particular device and passthrough the device to the guest. The guest will have a device with nearly native performance, and use the standard vendor's drivers for the device. * The PCI-SIG standards also provide a way to partition compatible devices using so-called Virtual Functions (VFs). In this case, the host manages the way a physical device is used by the guest. Both host and guest must have specific device drivers. It offers nearly native performance. -* Emulated +* **Emulated** * Model-based @@ -90,4 +90,8 @@ Under this configuration, more efficient communication methods are available bet A virtual machine is a recreation of a real, physical, silicon-based computer using software. It performs almost exactly as a physical computer, and can thus host an operating system. -The expression "virtual machine" is often abbreviated VM. VMs are also often referred to as guests, in contrast to the hosts that host them. \ No newline at end of file +The expression "virtual machine" is often abbreviated VM. VMs are also often referred to as guests, in contrast to the hosts that host them. + +--- + +*[**Go back to parent page**](https://wiki.phyllo.me/phyllomeos)* \ No newline at end of file