[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] cpuinfo flags change under 3.2-testing?
Hi, I'm building Xen on a 64bit machine, then using the xen.gz from that on a 32bit host (so that it can boot 64bit guests). This works fine. However I note that after booting xen.gz from 3.2-testing /proc/cpuinfo has different flags. 3.2.1 is the same. I have not yet tried 3.3.x. 3.2.0 results in: flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pni monitor ds_cpl vmx tm2 cx16 xtpr lahf_lm 3.2-testing (currently 3.2.2-rc5-pre): flags : fpu de tsc msr pae cx8 apic sep mtrr cmov pat clflush acpi mmx fxsr sse sse2 ss ht nx constant_tsc pni To build I'm grabbing the source from xen.org then simply doing a 'make' from xen/. Build machine is a Dual Opteron, running CentOS 5.x x86_64. Machine that I'm booting it on is Dual Xeon Woodcrest, running CentOS 5.x i386 with a 2.6.18.8 32bit dom0 kernel pulled from xen.org. # xm info | grep cap hw_caps : bfebfbff:20100800:00000000:00000140:0004e33d:00000000:00000001 xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p # uname -m i686 # uname -a Linux host194 2.6.18.8-xen0 #1 Sat Sep 13 00:22:21 UTC 2008 i686 i686 i386 GNU/Linux Is this a bug or is there perhaps some build option I should be using? Regards, Carl _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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