\begin{itemize}
\item Virtual machines with performance close to native hardware.
\item Live migration of running virtual machines between physical hosts.
-\item Up to 32 virtual CPUs per guest virtual machine, with VCPU hotplug.
-\item x86/32, x86/32 with PAE, and x86/64 platform support.
-\item Intel Virtualization Technology (VT-x) for unmodified guest operating systems (including Microsoft Windows).
+\item Up to 32\footnote{IA64 supports up to 64 virtual CPUs per guest virtual machine} virtual CPUs per guest virtual machine, with VCPU hotplug.
+\item x86/32, x86/32 with PAE, x86/64, IA64 and Power platform support.
+\item Intel and AMD Virtualization Technology for unmodified guest operating systems (including Microsoft Windows).
\item Excellent hardware support (supports almost all Linux device
drivers).
\end{itemize}
performance overhead, the combination of Xen and VT or Xen and
Pacifica technology complement one another to offer superb performance
for para-virtualized guest operating systems and full support for
-unmodified guests running natively on the processor. Full support for
-VT and Pacifica chipsets will appear in early 2006.
+unmodified guests running natively on the processor.
Paravirtualized Xen support is available for increasingly many
operating systems: currently, mature Linux support is available and
newer processor (e.g.\ Pentium Pro, Celeron, Pentium~II, Pentium~III,
Pentium~IV, Xeon, AMD~Athlon, AMD~Duron). Multiprocessor machines are
supported, and there is support for HyperThreading (SMT). In
-addition, ports to IA64 and Power architectures are in progress.
+addition, ports to IA64 and Power architectures are supported.
-The default 32-bit Xen supports up to 4GB of memory. However Xen 3.0
-adds support for Intel's Physical Addressing Extensions (PAE), which
-enable x86/32 machines to address up to 64 GB of physical memory. Xen
-3.0 also supports x86/64 platforms such as Intel EM64T and AMD Opteron
+The default 32-bit Xen supports for Intel's Physical Addressing Extensions (PAE), which enable x86/32 machines to address up to 64 GB of physical memory.
+It also supports non-PAE 32-bit Xen up to 4GB of memory.
+Xen also supports x86/64 platforms such as Intel EM64T and AMD Opteron
which can currently address up to 1TB of physical memory.
Xen offloads most of the hardware support issues to the guest OS
The former allows the overall build target architecture to be
specified. You will typically not need to modify this unless
-you are cross-compiling or if you wish to build a PAE-enabled
+you are cross-compiling or if you wish to build a non-PAE
Xen system. Additional configuration options are documented
in the \path{Config.mk} file.
\item [ guest\_loglvl=$<$level$>/<$level$>$ ] As for loglvl, but
applies to messages relating to guests. Default is
`guest\_loglvl=none/warning'.
+\item [ console\_timestamps ]
+ Adds a timestamp prefix to each line of Xen console output.
\item [ nmi=xxx ]
Specify what to do with an NMI parity or I/O error. \\
`nmi=fatal': Xen prints a diagnostic and then hangs. \\