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diff --git a/static/freebsd/man4/xen.4 3.html b/static/freebsd/man4/xen.4 3.html deleted file mode 100644 index 9c05924e..00000000 --- a/static/freebsd/man4/xen.4 3.html +++ /dev/null @@ -1,126 +0,0 @@ -<table class="head"> - <tr> - <td class="head-ltitle">XEN(4)</td> - <td class="head-vol">Device Drivers Manual</td> - <td class="head-rtitle">XEN(4)</td> - </tr> -</table> -<div class="manual-text"> -<section class="Sh"> -<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> -<p class="Pp"><code class="Nm">xen</code> — <span class="Nd">Xen - Hypervisor Support</span></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> -<p class="Pp">FreeBSD supports running both as a Xen guest and host on amd64 - hardware. Guest support is limited to HVM and PVH modes, while host support - is limited to PVH mode only.</p> -<p class="Pp">Xen support is built by default in the i386 and amd64 GENERIC - kernels; note however that host mode is only available on amd64.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> -<p class="Pp">The Xen Hypervisor allows multiple virtual machines to be run on a - single computer system. When first released, Xen required that i386 kernels - be compiled "para-virtualized" as the x86 instruction set was not - fully virtualizable. Primarily, para-virtualization modifies the virtual - memory system to use hypervisor calls (hypercalls) rather than direct - hardware instructions to modify the TLB, although para-virtualized device - drivers were also required to access resources such as virtual network - interfaces and disk devices.</p> -<p class="Pp">With later instruction set extensions from AMD and Intel to - support fully virtualizable instructions, unmodified virtual memory systems - can also be supported; this is referred to as hardware-assisted - virtualization (HVM and PVH). HVM configurations may either rely on - transparently emulated hardware peripherals, or para-virtualized drivers, - which are aware of virtualization, and hence able to optimize certain - behaviors to improve performance or semantics. PVH configurations rely on - para-virtualized drivers exclusively for IO.</p> -<p class="Pp"><span class="Ux">FreeBSD</span> Para-virtualized device drivers - are required in order to support certain functionality, such as processing - management requests, returning idle physical memory pages to the hypervisor, - etc.</p> -<section class="Ss"> -<h2 class="Ss" id="Xen_device_drivers"><a class="permalink" href="#Xen_device_drivers">Xen - device drivers</a></h2> -<p class="Pp">These para-virtualized drivers are supported:</p> -<dl class="Bl-hang Bd-indent"> - <dt><code class="Nm">balloon</code></dt> - <dd>Allow physical memory pages to be returned to the hypervisor as a result - of manual tuning or automatic policy.</dd> - <dt><code class="Nm">blkback</code></dt> - <dd>Exports local block devices or files to other Xen domains where they can - then be imported via <code class="Nm">blkfront</code>.</dd> - <dt><code class="Nm">blkfront</code></dt> - <dd>Import block devices from other Xen domains as local block devices, to be - used for file systems, swap, etc.</dd> - <dt><code class="Nm">console</code></dt> - <dd>Export the low-level system console via the Xen console service.</dd> - <dt><code class="Nm">control</code></dt> - <dd>Process management operations from Domain 0, including power off, reboot, - suspend, crash, and halt requests.</dd> - <dt><code class="Nm">evtchn</code></dt> - <dd>Expose Xen events via the <span class="Pa">/dev/xen/evtchn</span> special - device.</dd> - <dt><code class="Nm">gntdev</code></dt> - <dd>Allow access to the grant table interface via the - <span class="Pa">/dev/xen/gntdev</span> special device.</dd> - <dt><code class="Nm">netback</code></dt> - <dd>Export local network interfaces to other Xen domains where they can be - imported via <code class="Nm">netfront</code>.</dd> - <dt><code class="Nm">netfront</code></dt> - <dd>Import network interfaces from other Xen domains as local network - interfaces, which may be used for IPv4, IPv6, etc.</dd> - <dt><code class="Nm">privcmd</code></dt> - <dd>Allow issuing hypercalls via the <span class="Pa">/dev/xen/privcmd</span> - special device.</dd> - <dt><code class="Nm">timer</code></dt> - <dd>Implementation of a one-shot high resolution per-CPU timer using the - hypercall interface.</dd> - <dt><code class="Nm">acpi cpu</code></dt> - <dd>When running as a host forwards power management related information from - ACPI to the hypervisor for better performance management.</dd> - <dt><code class="Nm">xenpci</code></dt> - <dd>Represents the Xen PCI device, an emulated PCI device that is exposed to - HVM domains. This device allows detection of the Xen hypervisor, and - provides interrupt and shared memory services required to interact with - the hypervisor.</dd> - <dt><code class="Nm">xenstore</code></dt> - <dd>Information storage space shared between domains.</dd> -</dl> -</section> -</section> -<section class="Sh"> -<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1> -<p class="Pp">Support for <code class="Nm">xen</code> first appeared in - <span class="Ux">FreeBSD 8.1</span>. Support for host mode was added in 11.0 - .</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1> -<p class="Pp"><span class="Ux">FreeBSD</span> support for Xen was first added by - <span class="An">Kip Macy</span> - <<a class="Mt" href="mailto:kmacy@FreeBSD.org">kmacy@FreeBSD.org</a>> - and <span class="An">Doug Rabson</span> - <<a class="Mt" href="mailto:dfr@FreeBSD.org">dfr@FreeBSD.org</a>>. - Further refinements were made by <span class="An">Justin Gibbs</span> - <<a class="Mt" href="mailto:gibbs@FreeBSD.org">gibbs@FreeBSD.org</a>>, - <span class="An">Adrian Chadd</span> - <<a class="Mt" href="mailto:adrian@FreeBSD.org">adrian@FreeBSD.org</a>>, - <span class="An">Colin Percival</span> - <<a class="Mt" href="mailto:cperciva@FreeBSD.org">cperciva@FreeBSD.org</a>>, - and <span class="An">Roger Pau Monné</span> - <<a class="Mt" href="mailto:royger@FreeBSD.org">royger@FreeBSD.org</a>>. - This manual page was written by <span class="An">Robert Watson</span> - <<a class="Mt" href="mailto:rwatson@FreeBSD.org">rwatson@FreeBSD.org</a>>, - and <span class="An">Roger Pau Monné</span> - <<a class="Mt" href="mailto:royger@FreeBSD.org">royger@FreeBSD.org</a>>.</p> -</section> -</div> -<table class="foot"> - <tr> - <td class="foot-date">January 8, 2024</td> - <td class="foot-os">FreeBSD 15.0</td> - </tr> -</table> |