On Oct 9, 2019, at 4:39 AM, Cathy Avery <cavery@xxxxxxxxxx> wrote: > > On 10/8/19 4:02 PM, Nadav Amit wrote: >>> On Oct 8, 2019, at 9:30 AM, Nadav Amit <nadav.amit@xxxxxxxxx> wrote: >>> >>>> 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. >> I ran the SVM test, and on bare-metal it does not pass. >> >> I don’t have the AMD machine for long enough to fix the issues, but for the >> record, here are test failures and crashes I encountered while running the >> tests on bare-metal. >> >> Failures: >> - cr3 read intercept emulate >> - npt_nx >> - npt_rsvd >> - npt_rsvd_pfwalk >> - npt_rw_pfwalk >> - npt_rw_l1mmio >> >> Crashes: >> - test_dr_intercept - Access to DR4 causes #UD >> - tsc_adjust_prepare - MSR access causes #GP >> > Interesting. I just ran the latest on bare-metal and it did pass. > > enabling apic > enabling apic > paging enabled > cr0 = 80010011 > cr3 = 62a000 > cr4 = 20 > NPT detected - running all tests with NPT enabled > PASS: null > PASS: vmrun > PASS: ioio > PASS: vmrun intercept check > PASS: cr3 read intercept > PASS: cr3 read nointercept > PASS: cr3 read intercept emulate > PASS: dr intercept check > PASS: next_rip > PASS: msr intercept check > PASS: mode_switch > PASS: asid_zero > PASS: sel_cr0_bug > PASS: npt_nx > PASS: npt_us > PASS: npt_rsvd > PASS: npt_rw > PASS: npt_rsvd_pfwalk > PASS: npt_rw_pfwalk > PASS: npt_l1mmio > PASS: npt_rw_l1mmio > PASS: tsc_adjust > Latency VMRUN : max: 49300 min: 3160 avg: 3228 > Latency VMEXIT: max: 607780 min: 2940 avg: 2999 > PASS: latency_run_exit > Latency VMLOAD: max: 29720 min: 300 avg: 306 > Latency VMSAVE: max: 31660 min: 280 avg: 282 > Latency STGI: max: 18860 min: 40 avg: 54 > Latency CLGI: max: 16060 min: 40 avg: 53 > PASS: latency_svm_insn > SUMMARY: 24 tests Just to make sure, you actually ran it on bare-metal? Without KVM?
