On Wed, 2007-01-31 at 09:02 +0000, David Fletcher wrote: > On Wednesday 31 January 2007 00:43, Rick Stevens wrote: > > > > Yes, they're out. The "official" name for Pacifica is "AMD-V". The > > Athlon64/X2 series has AMD-V, as does the Opteron 1xxx,2xxx and 4xxx > > series (e.g. Opteron 1210). > > > > If you "cat /proc/cpuinfo", look at the flags string. AMD chips with > > AMD-V will have the "svm" flag. Intel chips will have the "vmx" flag. > > > > I have an AMD Athlon64/X2 and an Opteron 1210. Here's the procinfo > > for each. First, the Athlon64/X2: > > > > [root@labrat1 ~]# cat /proc/cpuinfo > > flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 > > clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm > > 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy > > > > And now the Opteron 1210: > > > > flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 > > clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm > > 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy > > > > Thanks for that, Rick. Very interesting. I'll keep this thread when it's done > for future reference. Sure enough I just did "cat /proc/cpuinfo" on this P4 > machine and there is no vmx flag. > > But the question from both myself and Jonathan remains:- If I/he/we were to > build new systems using these processor chips, would we be able to get a Xen > kernel then install and run 98SE/XP/Vista as virtual machines? I can't speak to Vista, but I've run 98, 98SE, XP, W2K server, W2K3SP2 server (that's Windows 2003 service pack 2) on both the 64/X2 and the Opteron under Xen. Works fine. ---------------------------------------------------------------------- - Rick Stevens, Senior Systems Engineer rstevens@xxxxxxxxxxxxxxx - - VitalStream, Inc. http://www.vitalstream.com - - - - BASIC is the Computer Science version of `Scientific Creationism' - ----------------------------------------------------------------------
