Uploaded image for project: 'RHEL'
  1. RHEL
  2. RHEL-29192

Ask for AMD IOMMU support on qemu-kvm downstream according to the latest windows security feature

    • Icon: Story Story
    • Resolution: Unresolved
    • Icon: Critical Critical
    • rhel-9.6
    • rhel-9.5
    • qemu-kvm
    • None
    • rhel-sst-virtualization
    • ssg_virtualization
    • 5
    • False
    • Hide

      None

      Show
      None
    • None
    • Red Hat Enterprise Linux
    • None
    • None
    • None
    • None

      We need AMD host support IOMMU with qemu-kvm downstream according to the latest windows security feature.

      Current stats is the IOMMU does not be supported on AMD host with downstram qemu-kvm. Details as:

      [root@hp-dl385g10-18 ~]# /usr/libexec/qemu-kvm -M q35,kernel-irqchip=split -device amd-iommu,,xtsup=on
      qemu-kvm: warning: CPU model qemu64-x86_64-cpu is deprecated – use at least 'Nehalem' / 'Opteron_G4', or 'host' / 'max'
      qemu-kvm: -device amd-iommu,,xtsup=on: 'amd-iommu,xtsup=on' is not a valid device model name

      The AMD cpuinfo as:

      # cat /proc/cpuinfo 
      processor       : 0
      vendor_id       : AuthenticAMD
      cpu family      : 23
      model           : 1
      model name      : AMD EPYC 7301 16-Core Processor
      stepping        : 2
      microcode       : 0x800126e
      cpu MHz         : 2200.000
      cache size      : 512 KB
      physical id     : 0
      siblings        : 32
      core id         : 0
      cpu cores       : 16
      apicid          : 0
      initial apicid  : 0
      fpu             : yes
      fpu_exception   : yes
      cpuid level     : 13
      wp              : yes
      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 amd_dcm aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate ssbd ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca
      bugs            : sysret_ss_attrs null_seg spectre_v1 spectre_v2 spec_store_bypass retbleed
      bogomips        : 4391.92
      TLB size        : 2560 4K pages
      clflush size    : 64
      cache_alignment : 64
      address sizes   : 48 bits physical, 48 bits virtual
      power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]

       

        1. result.txt
          8 kB
          Jin Liu
        2. svvp-Win2022nextx64_host_uefi_q35_viommu.hlkx
          7.89 MB
          Konstantin Kostiuk

              bdas@redhat.com Bandan Das
              kkostiuk Konstantin Kostiuk
              virt-maint virt-maint
              Jin Liu Jin Liu
              Votes:
              0 Vote for this issue
              Watchers:
              30 Start watching this issue

                Created:
                Updated: