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? Dave -- Registered Linux user number 393408 I use and recommend the email service at 1 & 1 For domain registration, email and web hosting please visit: http://oneandone.co.uk/xml/init?k_id=6389763