On 12/12/19 4:11 PM, Daniel Henrique Barboza wrote: > POWER hosts does not implement CPU virtualization extensions like > x86 or s390x. Instead, all bare-metal POWER hosts are considered > to be virtualization ready. > > For POWER, the validation is done by checking the virtualization > kernel modules, kvm_hv and kvm_pr, to see if they are either not > installed or not loaded in the host. If the KVM modules aren't > present, we should not just warn but fail to validate. > > This patch implements this support. If kvm_hv is not installed, > which can be determined by 'modinfo' returning not-zero return > code, fail the verification. If kvm_hv is installed but not > loaded, show a warning. The exception are POWER8 hosts, which can > work with kvm_pr. In its case, ACK the use of kvm_pr if kvm_hv > is not loaded/present.
For x86, we check for /dev/kvm being available and usable. This side steps whether kvm is a module or not, in theory it could be compiled into the kernel. Is there anything in /dev we can check for power8? I don't follow the reasoning for for why the module is installed vs loaded matters for FAIL vs WARN. Can you expand on that a bit more? Rather than parsing /proc/modinfo, can we check for /sys/module/$modname instead, or something under that directory? - Cole -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
