On Tue, 08 Mar 2022 20:09:02 +0000 "Bronek Kozicki" <b...@incorrekt.com> wrote: > On Tue, 8 Mar 2022, at 7:35 PM, Bronek Kozicki wrote: > > root@gdansk ~ # lscpu > > Architecture: x86_64 > > CPU op-mode(s): 32-bit, 64-bit > > Address sizes: 48 bits physical, 48 bits virtual > > Byte Order: Little Endian > > CPU(s): 96 > > On-line CPU(s) list: 0-95 > > Vendor ID: AuthenticAMD > > BIOS Vendor ID: Advanced Micro Devices, Inc. > > Model name: AMD EPYC 7413 24-Core Processor > > BIOS Model name: AMD EPYC 7413 24-Core Processor > > > > CPU family: 25 > > Model: 1 > > Thread(s) per core: 2 > > Core(s) per socket: 24 > > Socket(s): 2 > > Stepping: 1 > > Frequency boost: enabled > > CPU max MHz: 3630.8101 > > CPU min MHz: 1500.0000 > > BogoMIPS: 5300.12 > > Flags: fpu vme de pse tsc msr pae mce cx8 > > apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht > > syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl > > nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor > > ssse3 fma cx16 pcid sse4_1 sse4_2 movbe popcnt aes xsave avx f16c > > rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse > > 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb > > bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 invpcid_single hw_pstate > > ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 invpcid > > cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec > > xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero > > irperf xsaveerptr rdpru wbnoinvd amd_ppin arat npt lbrv svm_lock > > nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter > > pfthreshold v_vmsave_vmload vgif v_spec_ctrl umip pku ospke vaes > > vpclmulqdq rdpid overflow_recov succor smca > > Virtualization: AMD-V > > L1d cache: 1.5 MiB (48 instances) > > L1i cache: 1.5 MiB (48 instances) > > L2 cache: 24 MiB (48 instances) > > L3 cache: 256 MiB (8 instances) > > NUMA node(s): 2 > > NUMA node0 CPU(s): 0-23,48-71 > > NUMA node1 CPU(s): 24-47,72-95 > > > OK so it seems avic is not listed in the CPU Flags which is puzzling, > since it is almost 10 years old CPU feature and supported in kernels > since 5.6 if I read that right. I have send a query to the > motherboard manufacturer (Supermicro) in case it needs to be enabled > in BIOS, or maybe conflicts with existing settings.
Hmm, yeah. I'm not sure what's required to get that enabled in the CPU flags. Both AMD systems I have access to show it, a Ryzen 7 4800H and and EPYC 7601. _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://listman.redhat.com/mailman/listinfo/vfio-users
