On Mon, Sep 14, 2020 at 12:28 AM wodel youchi <wodel.you...@gmail.com> wrote: > > Hi, > > Thanks for the help, I think I found the solution using this link : > https://www.berrange.com/posts/2018/06/29/cpu-model-configuration-for-qemu-kvm-on-x86-hosts/ > > When executing : virsh dumpxml on my ovirt hypervisor I saw that the mpx flag > was disabled, so I edited the XML file of the hypervisor VM and I did this : > add the already enabled features and enable mpx with them. I stopped/started > my hyerpvisor VM and voila, le nested VM-Manager has booted successfully. > > > <cpu mode="host-model" check="partial"> > <feature policy="require" name="ss"/> > <feature policy="require" name="vmx"/> > <feature policy="require" name="pdcm"/> > <feature policy="require" name="hypervisor"/> > <feature policy="require" name="tsc_adjust"/> > <feature policy="require" name="clflushopt"/> > <feature policy="require" name="umip"/> > <feature policy="require" name="md-clear"/> > <feature policy="require" name="stibp"/> > <feature policy="require" name="arch-capabilities"/> > <feature policy="require" name="ssbd"/> > <feature policy="require" name="xsaves"/> > <feature policy="require" name="pdpe1gb"/> > <feature policy="require" name="ibpb"/> > <feature policy="require" name="amd-ssbd"/> > <feature policy="require" name="skip-l1dfl-vmentry"/> > <feature policy="require" name="mpx"/> > </cpu
Thanks for the report! Would you like to open a bug about this? A possible fix is probably to pass relevant options to the virt-install command in ovirt-ansible-hosted-engine-setup. Either always - no idea what the implications are - or optionally, or even allow the user to pass arbitrary options. Thanks and best regards, > > > Regards. > > Le dim. 13 sept. 2020 à 19:47, Nir Soffer <nsof...@redhat.com> a écrit : >> >> On Sun, Sep 13, 2020 at 8:32 PM wodel youchi <wodel.you...@gmail.com> wrote: >> > >> > Hi, >> > >> > I've been using my core i5 6500 (skylake-client) for some time now to test >> > oVirt on my machine. >> > However this is no longer the case. >> > >> > I am using Fedora 32 as my base system with nested-kvm enabled, when I try >> > to install oVirt 4.4 as HCI single node, I get an error in the last phase >> > which consists of copying the VM-Manager to the engine volume and boot it. >> > It is the boot that causes the problem, I get an error about the CPU : >> > the CPU is incompatible with host CPU: Host CPU does not provide required >> > features: mpx >> > >> > This is the CPU part from virsh domcapabilities on my physical machine >> > <cpu> >> > <mode name='host-passthrough' supported='yes'/> >> > <mode name='host-model' supported='yes'> >> > <model fallback='forbid'>Skylake-Client-IBRS</model> >> > <vendor>Intel</vendor> >> > <feature policy='require' name='ss'/> >> > <feature policy='require' name='vmx'/> >> > <feature policy='require' name='pdcm'/> >> > <feature policy='require' name='hypervisor'/> >> > <feature policy='require' name='tsc_adjust'/> >> > <feature policy='require' name='clflushopt'/> >> > <feature policy='require' name='umip'/> >> > <feature policy='require' name='md-clear'/> >> > <feature policy='require' name='stibp'/> >> > <feature policy='require' name='arch-capabilities'/> >> > <feature policy='require' name='ssbd'/> >> > <feature policy='require' name='xsaves'/> >> > <feature policy='require' name='pdpe1gb'/> >> > <feature policy='require' name='invtsc'/> >> > <feature policy='require' name='ibpb'/> >> > <feature policy='require' name='amd-ssbd'/> >> > <feature policy='require' name='skip-l1dfl-vmentry'/> >> > </mode> >> > <mode name='custom' supported='yes'> >> > <model usable='yes'>qemu64</model> >> > <model usable='yes'>qemu32</model> >> > <model usable='no'>phenom</model> >> > <model usable='yes'>pentium3</model> >> > <model usable='yes'>pentium2</model> >> > <model usable='yes'>pentium</model> >> > <model usable='yes'>n270</model> >> > <model usable='yes'>kvm64</model> >> > <model usable='yes'>kvm32</model> >> > <model usable='yes'>coreduo</model> >> > <model usable='yes'>core2duo</model> >> > <model usable='no'>athlon</model> >> > <model usable='yes'>Westmere-IBRS</model> >> > <model usable='yes'>Westmere</model> >> > <model usable='no'>Skylake-Server-IBRS</model> >> > <model usable='no'>Skylake-Server</model> >> > <model usable='yes'>Skylake-Client-IBRS</model> >> > <model usable='yes'>Skylake-Client</model> >> > <model usable='yes'>SandyBridge-IBRS</model> >> > <model usable='yes'>SandyBridge</model> >> > <model usable='yes'>Penryn</model> >> > <model usable='no'>Opteron_G5</model> >> > <model usable='no'>Opteron_G4</model> >> > <model usable='no'>Opteron_G3</model> >> > <model usable='yes'>Opteron_G2</model> >> > <model usable='yes'>Opteron_G1</model> >> > <model usable='yes'>Nehalem-IBRS</model> >> > <model usable='yes'>Nehalem</model> >> > <model usable='yes'>IvyBridge-IBRS</model> >> > <model usable='yes'>IvyBridge</model> >> > <model usable='no'>Icelake-Server</model> >> > <model usable='no'>Icelake-Client</model> >> > <model usable='yes'>Haswell-noTSX-IBRS</model> >> > <model usable='yes'>Haswell-noTSX</model> >> > <model usable='yes'>Haswell-IBRS</model> >> > <model usable='yes'>Haswell</model> >> > <model usable='no'>EPYC-IBPB</model> >> > <model usable='no'>EPYC</model> >> > <model usable='no'>Dhyana</model> >> > <model usable='yes'>Conroe</model> >> > <model usable='no'>Cascadelake-Server</model> >> > <model usable='yes'>Broadwell-noTSX-IBRS</model> >> > <model usable='yes'>Broadwell-noTSX</model> >> > <model usable='yes'>Broadwell-IBRS</model> >> > <model usable='yes'>Broadwell</model> >> > <model usable='yes'>486</model> >> > </mode> >> > </cpu> >> > >> > Here is the lscpu of my physical machine >> > # lscpu >> > Architecture: x86_64 >> > CPU op-mode(s): 32-bit, 64-bit >> > Byte Order: Little Endian >> > Address sizes: 39 bits physical, 48 bits virtual >> > CPU(s): 4 >> > On-line CPU(s) list: 0-3 >> > Thread(s) per core: 1 >> > Core(s) per socket: 4 >> > Socket(s): 1 >> > NUMA node(s): 1 >> > Vendor ID: GenuineIntel >> > CPU family: 6 >> > Model: 94 >> > Model name: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz >> > Stepping: 3 >> > CPU MHz: 954.588 >> > CPU max MHz: 3600.0000 >> > CPU min MHz: 800.0000 >> > BogoMIPS: 6399.96 >> > Virtualization: VT-x >> > L1d cache: 128 KiB >> > L1i cache: 128 KiB >> > L2 cache: 1 MiB >> > L3 cache: 6 MiB >> > NUMA node0 CPU(s): 0-3 >> > Vulnerability Itlb multihit: KVM: Mitigation: Split huge pages >> > Vulnerability L1tf: Mitigation; PTE Inversion; VMX >> > conditional cache flushes, SMT disabled >> > Vulnerability Mds: Mitigation; Clear CPU buffers; SMT >> > disabled >> > Vulnerability Meltdown: Mitigation; PTI >> > Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass >> > disabled via prctl and seccomp >> > Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and >> > __user pointer sanitization >> > Vulnerability Spectre v2: Mitigation; Full generic retpoline, IBPB >> > conditional, IBRS_FW, STIBP disabled, RSB filling >> > Vulnerability Srbds: Vulnerable: No microcode >> > Vulnerability Tsx async abort: Mitigation; Clear CPU buffers; SMT >> > disabled >> > 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 constan >> > t_tsc art arch_perfmon pebs bts rep_good >> > nopl xtopology nonstop_tsc cpuid aperfmperf 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 invpcid_single pti ssbd >> > ibrs ibpb stibp tpr_shadow vnmi >> > flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 >> > erms invpcid rtm mpx rdseed adx smap clflushopt in >> > tel_pt xsaveopt xsavec xgetbv1 xsaves >> > dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear >> > flush_l1d >> > >> > >> > >> > Here is the CPU part from virsh dumpxml of my ovirt hypervisor >> > <cpu mode='custom' match='exact' check='full'> >> > <model fallback='forbid'>Skylake-Client-IBRS</model> >> > <vendor>Intel</vendor> >> > <feature policy='require' name='ss'/> >> > <feature policy='require' name='vmx'/> >> > <feature policy='require' name='pdcm'/> >> > <feature policy='require' name='hypervisor'/> >> > <feature policy='require' name='tsc_adjust'/> >> > <feature policy='require' name='clflushopt'/> >> > <feature policy='require' name='umip'/> >> > <feature policy='require' name='md-clear'/> >> > <feature policy='require' name='stibp'/> >> > <feature policy='require' name='arch-capabilities'/> >> > <feature policy='require' name='ssbd'/> >> > <feature policy='require' name='xsaves'/> >> > <feature policy='require' name='pdpe1gb'/> >> > <feature policy='require' name='ibpb'/> >> > <feature policy='require' name='amd-ssbd'/> >> > <feature policy='require' name='skip-l1dfl-vmentry'/> >> > <feature policy='disable' name='mpx'/> >> > </cpu> >> > >> > Here is the lcpu of my ovirt hypervisor >> > [root@node1 ~]# lscpu >> > Architecture : x86_64 >> > Mode(s) opératoire(s) des processeurs : 32-bit, 64-bit >> > Boutisme : Little Endian >> > Processeur(s) : 4 >> > Liste de processeur(s) en ligne : 0-3 >> > Thread(s) par cœur : 1 >> > Cœur(s) par socket : 1 >> > Socket(s) : 4 >> > Nœud(s) NUMA : 1 >> > Identifiant constructeur : GenuineIntel >> > Famille de processeur : 6 >> > Modèle : 94 >> > Nom de modèle : Intel Core Processor (Skylake, >> > IBRS) >> > Révision : 3 >> > Vitesse du processeur en MHz : 3191.998 >> > BogoMIPS : 6383.99 >> > Virtualisation : VT-x >> > Constructeur d'hyperviseur : KVM >> > Type de virtualisation : complet >> > Cache L1d : 32K >> > Cache L1i : 32K >> > Cache L2 : 4096K >> > Cache L3 : 16384K >> > Nœud NUMA 0 de processeur(s) : 0-3 >> > Drapaux : fpu vme de pse tsc msr pae mce cx8 >> > apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall >> > nx pdpe1gb rdtscp lm constant_tsc rep_go >> > od nopl xtopology cpuid tsc_known_freq pni pclmulqdq vmx ssse3 fma cx16 >> > pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave >> > avx f16c rdrand hypervisor lahf_lm abm 3dnow >> > prefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow >> > vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 >> > erms invpcid rtm rdseed adx smap clflushopt xs >> > aveopt xsavec xgetbv1 xsaves arat umip md_clear arch_capabilities >> > >> > it seems not all the flags are presented to the hypervisor especially the >> > mpx which causes the error >> > >> > Is there a workaround for this? >> >> I'm using a similar setup, using older generation CPU works. >> >> Cluster CPU Type: >> Intel Broadwell Family >> >> It looks like this bug: >> https://bugzilla.redhat.com/1609818 >> >> But it cannot be fixed by resetting the cpu type, suggested in: >> https://bugzilla.redhat.com/show_bug.cgi?id=1609818#c9 >> >> Nir >> >> >> Nir >> > _______________________________________________ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: -- Didi _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives:
