2018-05-19 0:16 GMT+01:00 Dmitry Safonov <0x7f454c46@xxxxxxxxx>: > 2018-05-19 0:10 GMT+01:00 Dmitry Safonov <0x7f454c46@xxxxxxxxx>: >> Sure. >> I'm on Intel actually: >> cpu family : 6 >> model : 142 >> model name : Intel(R) Core(TM) i7-7600U CPU @ 2.80GHz >> >> But I usually test kernels in VM. So, I use virt-manager as it's >> easier to manage >> multiple VMs. The thing is that I've chosen "Copy host CPU configuration" >> and for some reason, I don't quite follow virt-manager makes model "Opteron_G4". >> I'm on Fedora 27, virt-manager 1.4.3, qemu 2.9.1(qemu-2.9.1-2.fc26). > > Hmm, the reason it chooses AMD emulation looks like a bug in virt-manager: > When I try IvyBridge CPU, it gives the following error: >> Error starting domain: the CPU is incompatible with host CPU: Host CPU does not >> provide required features: vme, x2apic, tsc-deadline, avx, f16c, rdrand > > Which to my naive mind is by the reason that "tsc-deadline" is not written with > a dash in cpuinfo: > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe > syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts > rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq > pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma > cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt > tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch > cpuid_fault epb invpcid_single pti tpr_shadow vnmi flexpriority ept > vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx > rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves > ibpb ibrs stibp dtherm ida arat pln pts hwp hwp_notify hwp_act_window > hwp_epp > > But that just my naive suppose. Yeah, so they use cpuid there and I guess this one wasn't fixed for me: https://bugzilla.redhat.com/show_bug.cgi?id=1467599 Thanks, Dmitry
