On 06/29/2010 04:25 PM, Chetan Loke wrote: > Hello, > > > Requirement: > I have the need to support my apps(running on a Linux VM) on different > *nix hypervisors(ESX/Xen etc). I need to know on which hypervisor my > app is running. I read the CPUID usage thread - > http://thread.gmane.org/gmane.comp.emulators.kvm.devel/22643 but to be > honest in the end I looked at > http://lxr.linux.no/#linux+v2.6.34/arch/x86/kernel/cpu/vmware.c#L88 > The vmware_platform() detection code is straight forward. > > Current-hack: > As a quick hack we just grep lspci for VMware's pci-ids. > > Solution: > I can write a bare minimal driver, check the cpu-id as VMware's > balloon driver does and then emit a proc/sysfs node. The setup > packages and the apps can then check for this node-string.I'm > currently working on ESX and I am hoping that this thin-driver will > work. >
It can be done entirely in userspace. Take a look at virt-what: http://people.redhat.com/~rjones/virt-what/ > Question: > Q1)Is it possible to get this functionality as part of the stock > kernel or is that a bad idea? I suspect there could be other > users/apps who would need to know what *nix hypervisor(or a > non-virtualized environment) they are > running on? > Q2)If this is not the right approach then can someone please suggest > another approach? > It might be reasonable to list the hypervisor signature as a field in /proc/cpuinfo. There's also a /sys/hypervisor where such information could go. Regards, Anthony Liguori > Regards > Chetan Loke > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/virtualization
