Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> 于2019年10月8日周二 下午5:06写道： > > Jack Wang <jack.wang.usish@xxxxxxxxx> writes: > > > Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> 于2019年10月8日周二 下午2:20写道： > >> > >> 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 > >> > > > >> Are you seeing different failures? > >> > >> -- > >> Vitaly > > On my test machine AMD Opteron(tm) Processor 6386 SE, bare metal: > > I got similar result: > > vmware_backdoors (11 tests, 8 unexpected failures) > > svm (13 tests, 1 unexpected failures), it failed on > > FAIL: tsc_adjust > > Latency VMRUN : max: 181451 min: 13150 avg: 13288 > > Latency VMEXIT: max: 270048 min: 13455 avg: 13623 > > Right you are, > > the failing test is also 'tsc_adjust' for me, npt_rsvd_pfwalk (which > Cathy fixed) is not being executed because we do '-cpu qemu64' for it. > > With the following: > > diff --git a/x86/unittests.cfg b/x86/unittests.cfg > index b4865ac..5ecb9bb 100644 > --- a/x86/unittests.cfg > +++ b/x86/unittests.cfg > @@ -198,7 +198,7 @@ arch = x86_64 > [svm] > file = svm.flat > smp = 2 > -extra_params = -cpu qemu64,+svm > +extra_params = -cpu host,+svm > arch = x86_64 > > [taskswitch] > > everything passes, including tsc_adjust: > > PASS: tsc_adjust > Latency VMRUN : max: 43240 min: 3720 avg: 3830 > Latency VMEXIT: max: 36300 min: 3540 avg: 3648 > > -- > Vitaly Yes with -cpu host, my tests also are all pass now. PASS: tsc_adjust Latency VMRUN : max: 5266389 min: 14207 avg: 14444 Latency VMEXIT: max: 138820 min: 13712 avg: 13932
