Re: [gentoo-user] Confused - vmx cpuflag missing
Hey Guys, I'm trying to get a hypervisor running. I've installed Gentoo 64bit on a new(ish) HP XW6400. When booted with the minimal install CD, /proc/cpuinfo shows: bla bla Just build a stock (gentoo-sources) kernel on the same machine, and the vmx flag is there, along with a whole load of others. Now I'm really confused! I only care about that flag when I'm running a Xen kernel! Anybody got any ideas? Well, don't I feel like an idiot. VT was disabled in the BIOS, under an obscure 'OS Security' menu option. I was thrown off the scent because of the difference in cpu flags shown under stock linux vs. linux running as dom0 under Xen. Apparently Xen isolates some of the machine capabilities from even dom0. For anybody having similar troubles - xm dmesg | grep -i vmx will show you definitely whether VMX has been picked up or not. You're looking for: (XEN) HVM: VMX enabled Best Wishes, Paul -- gentoo-user@lists.gentoo.org mailing list
[gentoo-user] Confused - vmx cpuflag missing
Hey Guys, I'm trying to get a hypervisor running. I've installed Gentoo 64bit on a new(ish) HP XW6400. When booted with the minimal install CD, /proc/cpuinfo shows: livecd ~ # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU5140 @ 2.33GHz stepping: 6 cpu MHz : 2327.500 cache size : 4096 KB physical id : 3 siblings: 2 core id : 0 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr dca lahf_lm bogomips: 4657.74 clflush size: 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: When running my Xen kernel (xen-sources 2.6.21), I get the following: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU5140 @ 2.33GHz stepping: 6 cpu MHz : 2327.560 cache size : 4096 KB physical id : 0 siblings: 1 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu de tsc msr pae cx8 apic sep mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni ssse3 cx16 lahf_lm bogomips: 4657.82 clflush size: 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: I'm going slightly nuts here - I figure I've done something obvious wrong, but I can't think what. Any ideas/advice? Something I've missed in menuconfig? Cheers in advance! Paul -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Confused - vmx cpuflag missing
Thursday, May 22, 2008, 2:42:23 PM, Paul wrote: Hey Guys, I'm trying to get a hypervisor running. I've installed Gentoo 64bit on a new(ish) HP XW6400. When booted with the minimal install CD, /proc/cpuinfo shows: livecd ~ # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU5140 @ 2.33GHz stepping: 6 cpu MHz : 2327.500 cache size : 4096 KB physical id : 3 siblings: 2 core id : 0 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr dca lahf_lm bogomips: 4657.74 clflush size: 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: When running my Xen kernel (xen-sources 2.6.21), I get the following: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Xeon(R) CPU5140 @ 2.33GHz stepping: 6 cpu MHz : 2327.560 cache size : 4096 KB physical id : 0 siblings: 1 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu de tsc msr pae cx8 apic sep mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni ssse3 cx16 lahf_lm bogomips: 4657.82 clflush size: 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: I'm going slightly nuts here - I figure I've done something obvious wrong, but I can't think what. Any ideas/advice? Something I've missed in menuconfig? Cheers in advance! Paul Use x86info to get CPU extended features. -- Sergey -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Confused - vmx cpuflag missing
Hey Guys, I'm trying to get a hypervisor running. I've installed Gentoo 64bit on a new(ish) HP XW6400. When booted with the minimal install CD, /proc/cpuinfo shows: bla bla Just build a stock (gentoo-sources) kernel on the same machine, and the vmx flag is there, along with a whole load of others. Now I'm really confused! I only care about that flag when I'm running a Xen kernel! Anybody got any ideas? Paul -- gentoo-user@lists.gentoo.org mailing list
