Here is the current list of HVM
compatible processors:
http://wiki.xensource.com/xenwiki/HVM_Compatible_Processors
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Chapter 3
[ 29 ]
The server that runs my Xen system does not have any of the newer chipsets from
Intel or AMD. It is a 32-bit machine with 1GB of memory. However, most of the
current distributions, including Fedora Core ship a PAE enabled Xen hypervisor,
which will not work on servers such as mine. There are two workarounds for this
issue??”recompile the distribution-specific Xen packages to use a non-PAE kernel or
use the current 3.0.4 version source from Xen and build the hypervisor and kernels
yourselves. For Fedora, you can recompile using the source RPM after disabling the
PAE configuration option in the spec file for the SRPM. I used the second option as
it enables the use of the most recent versions of Xen. We have already learnt how
to compile the Xen hypervisor and dom0 kernel in the previous chapter. These will
be the default non-PAE versions. You can check if you have a PAE enabled kernel
installed by running the cpuinfo command:
~ cat /proc/cpuinfo
The machine with an AMD processor shows the following output:
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 47
model name : AMD Sempron(tm) Processor 3400+
stepping : 2
cpu MHz : 1989.897
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36
clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt
lm 3dnowext 3dnow pni lahf_lm ts fid vid ttp tm stc
bogomips : 3980.
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