> On Oct 8, 2019, at 5:19 AM, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> wrote: > > Nadav Amit <nadav.amit@xxxxxxxxx> writes: > >> Is kvm-unit-test supposed to pass on AMD machines or AMD VMs?. > > It is supposed to but it doesn't :-) Actually, not only kvm-unit-tests > but the whole SVM would appreciate some love ... > >> Clearly, I ask since they do not pass on AMD on bare-metal. > > On my AMD EPYC 7401P 24-Core Processor bare metal I get the following > failures: > > FAIL vmware_backdoors (11 tests, 8 unexpected failures) > > (Why can't we just check > /sys/module/kvm/parameters/enable_vmware_backdoor btw???) > > FAIL svm (15 tests, 1 unexpected failures) > > There is a patch for that: > > https://lore.kernel.org/kvm/d3eeb3b5-13d7-34d2-4ce0-fdd534f2bcc3@xxxxxxxxxx/T/#t > > Inside a VM on this host I see the following: > > FAIL apic-split (timeout; duration=90s) > FAIL apic (timeout; duration=30) > > (I manually inreased the timeout but it didn't help - this is worrisome, > most likely this is a hang) > > FAIL vmware_backdoors (11 tests, 8 unexpected failures) > > - same as on bare metal > > FAIL port80 (timeout; duration=90s) > > - hang again? > > FAIL svm (timeout; duration=90s) > > - most likely a hang but this is 3-level nesting so oh well.. > > FAIL kvmclock_test > > - bad but maybe something is wrong with TSC on the host? Need to > investigate ... > > FAIL hyperv_clock > > - this is expected as it doesn't work when the clocksource is not TSC > (e.g. kvm-clock) > > Are you seeing different failures? Thanks for your quick response. I only ran the “apic” tests so far and I got the following failures: FAIL: correct xapic id after reset … x2apic not detected FAIL: enable unsupported x2apic FAIL: apicbase: relocate apic The test gets stuck after “apicbase: reserved low bits”. Well, I understand it is not a bare-metal thing.
