On 2017-11-11 09:34, Vasily Averin wrote: > Dear Scott, > > thank you for reporting this problem. > > As far as I know Centos7 uses some old KVM version. > OpenVz7 includes newer version and probably can have some additional > restrictions? > > I've found that your Xeon E5530 was launched Q1'09 and related to Nehalem EP > family > https://ark.intel.com/products/37103/Intel-Xeon-Processor-E5530-8M-Cache-2_40-GHz-5_86-GTs-Intel-QPI > > So looks like it can lack "Unrestricted guest" feature, however I do now know > how important it is for KVM. > I expect it should work but not so effective as newer CPUs. > > I've requested comments of our KVM Team, hope they clarify the situation.
I got following feedback: "It will work but is not officially supported neither by us nor by redhat. Installer warns (at least _SHOULD_ warn) but should not prevent the installation." > On 2017-11-11 01:52, Scott Dowdle wrote: >> Greetings, >> >> I have a Dell PowerEdge R710 rack mount server. It is a few years old and >> it has an Intel Xeon E5530 @ 2.40GHz. KVM likes it just fine and it passes >> a virt-host-validate with flying colors but OpenVZ 7's vmxcap says: >> >> Unrestricted guest no >> >> Looking that up I find: >> >> "VMX Unrestricted Guest is an Intel microprocessor feature that is also >> called IA-32e mode. Running a VM in this mode requires minimal involvement >> from software. You can think of it as running a VM bare-metal with its own >> EPT. This feature is available only on Westmere processors and later." >> >> I ended up installing CentOS 7 on it and KVM works fine. >> >> What's the deal? Why this extra restriction? :( >> >> TYL, >> _______________________________________________ Users mailing list Users@openvz.org https://lists.openvz.org/mailman/listinfo/users
