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Description of problem: according to patch http://post-office.corp.redhat.com/archives/rhvirt-patches/2011-April/msg00101.html , svm is exported to guest if kvm_nested, but "invalid option" is shown when I boot guest with -enable-nesting Version-Release number of selected component (if applicable): kvm-83-232.el5 How reproducible: 100% Steps to Reproduce: 1. boot guest with -cpu qemu64,+svm -enable-nesting 2. 3. Actual results: invalid option -- '-enable-nesting' Expected results: Additional info:
Looks line --disable-kvm-nested is set by default in 5.x builds which would cause the parse error above as the CLI option wouldn't be defined. (In reply to comment #0) > Description of problem: > according to patch > http://post-office.corp.redhat.com/archives/rhvirt-patches/2011-April/msg00101.html > , svm is exported to guest if kvm_nested, but "invalid option" is shown when I > boot guest with -enable-nesting Sorry my comment above was relative to 6.x and confusing in this context. The actual goal here was disable of vmx/svm by default.
--disable-kvm-nested is set by default in the 5.x qemu configure thus this options isn't supported in 5.x.