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Explain xen version differences. There are 5 versions of xen in pkgsrc, which is confusing. Explain in DESCR which version is in which package (xenkernel3 contains 3.1), and which versions support PCI passthrough (only 3.1). Explain which versions support non-PAE (3.1) and PAE (3.3, 4.1, 4.2), because the HOWTO is out of date and it's easy to end up with a non-working system on a 3.1 to 3.3 update. Cuation that 2.0 is beyond crufty. This is a DESCR-only change (with PKGREVISION++ of course). (ok during freeze agc@)
2013-06-19 16:03:41 +02:00
Xen is a virtual machine monitor which supports running multiple
guests operating systems on a single machine. Guest OSes (also
called "domains") require a modified kernel which supports Xen
hypercalls in replacement to access to the physical hardware. At
boot, the xen kernel is loaded along with the guest kernel for the
first domain (called domain0). domain0 has privileges to access
the physical hardware (PCI and ISA devices), administrate other
domains and provide virtual devices (disks and network) to other
domains.
Xen is a virtual machine monitor which supports running multiple guests operating systems on a single machine. Guest OSes (also called "domains" ) require a modified kernel which supports Xen hypercalls in replacement to access to the physical hardware. At boot, the xen kernel is loaded along with the guest kernel for the first domain (called domain0). domain0 has privileges to access the physical hardware (PCI and ISA devices), administrate other domains and provide virtual devices (disks and network) to other domains. This package contains the Xen4 kernel itself. Release notes: The Xen team is pleased to announce the release of Xen 4.1. The result of nearly 12 months of development, new features include: * A re-architected and improved XL toolstack replacing XM/XEND * Prototype credit2 scheduler designed for latency-sensitive workloads and very large systems. * CPU Pools for advanced partitioning. * Support for large systems (>255 processors) * Support for x86 Advanced Vector eXtension (AVX). * New Memory Access API enabling integration of 3rd party security solutions into Xen virtualized environments. * Many IOMMU fixes (both Intel VT-d IOMMU and AMD IOMMU). * Many toolstack and buildsystem fixes for Linux and NetBSD hosts. * Thirdparty libs: libvirt driver for libxl has been merged to upstream libvirt. * HVM guest PXE boot enhancements, replacing gPXE with iPXE. * Even better stability through our new automated regression tests. Detailed release notes, including a more extensive feature list: http://wiki.xen.org/xenwiki/Xen4.1 To download tarballs: http://xen.org/products/xen_source.html Or the Mercurial source repository (tag 'RELEASE-4.1.0'): http://xenbits.xen.org/xen-unstable.hg And the announcement on the Xen blog: http://blog.xen.org/index.php/2011/03/25/xen-4-1-releases/ Thanks to the many people who have contributed to this release! Regards, The Xen Team
2011-04-06 11:05:53 +02:00
Explain xen version differences. There are 5 versions of xen in pkgsrc, which is confusing. Explain in DESCR which version is in which package (xenkernel3 contains 3.1), and which versions support PCI passthrough (only 3.1). Explain which versions support non-PAE (3.1) and PAE (3.3, 4.1, 4.2), because the HOWTO is out of date and it's easy to end up with a non-working system on a 3.1 to 3.3 update. Cuation that 2.0 is beyond crufty. This is a DESCR-only change (with PKGREVISION++ of course). (ok during freeze agc@)
2013-06-19 16:03:41 +02:00
This package contains the 4.1 Xen4 kernel itself. PCI passthrough is
not supported. PAE is mandatory; on i386 one must use XEN3PAE_DOM0[0U].
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