Il 27/05/2013 15:07, Eduardo Habkost ha scritto: >> Changing TCG to KVM should not change hardware >> > if you use "-cpu ...,enforce", so it is right that it fails when >> > starting with KVM. >> > > Changing between KVM and TCG _does_ change hardware, today (with or > without check/enforce). All CPU models on TCG have features not > supported by TCG automatically removed. See the "if (!kvm_enabled())" > block at x86_cpu_realizefn().
Perhaps (for "-cpu ...,enforce" or check) that's the real bug we have to fix? Paolo > (That's why I argue that we need separate classes/names for TCG and KVM > modes. Otherwise our predefined models get less useful as they will > require low-level feature-bit fiddling on the libvirt side to make them > work as expected.) >
