<div dir="ltr">Adding <a class="gmail_plusreply" id="plusReplyChip-0" href="mailto:mrezanin@redhat.com" tabindex="-1">+Miroslav Rezanina</a> , <a class="gmail_plusreply" id="plusReplyChip-1" href="mailto:ddepaula@redhat.com" tabindex="-1">+Danilo Cesar Lemes de Paula</a> and <a class="gmail_plusreply" id="plusReplyChip-2" href="mailto:pbonzini@redhat.com" tabindex="-1">+Paolo Bonzini</a> <br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno sab 22 ago 2020 alle ore 03:04 Anthony Alba <<a href="mailto:ascanio.alba7@gmail.com">ascanio.alba7@gmail.com</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On 8.2, with modular virt installed OR switching to<br>
centos-release-advanced-virtualization I am seeing<br>
<br>
qemu-kvm: error: failed to set MSR 0x48e to 0xfff9fffe04006172<br>
<br>
when trying to create a VM with virt-install on a Dell PowerEdge R630<br>
with a Xeon E5-2640. The command works on a desktop Haswell.<br>
<br>
There was such a bug in RH bugzilla<br>
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1738741" rel="noreferrer" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=1738741</a> but that is about<br>
nested virtualisation and L1->L1 migration with a L2 guest. I am not<br>
doing any such magick, just a plain L1 VM.<br>
<br>
I tried reloading kvm_intel with pml=0 but got the same error.<br>
<br>
qemu-kvm-4.2.0-19.el8.x86_64<br>
libvirt-6.0.0-17.el8.x86_64<br>
<br>
Any ideas? (See below, does intel_iommu have to be on?)<br>
<br>
The CPU type is<br>
<br>
processor : 0<br>
vendor_id : GenuineIntel<br>
cpu family : 6<br>
model : 63<br>
model name : Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz<br>
stepping : 2<br>
microcode : 0x43<br>
cpu MHz : 2809.143<br>
cache size : 20480 KB<br>
physical id : 0<br>
siblings : 16<br>
core id : 0<br>
cpu cores : 8<br>
apicid : 0<br>
initial apicid : 0<br>
fpu : yes<br>
fpu_exception : yes<br>
cpuid level : 15<br>
wp : yes<br>
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge<br>
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe<br>
syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts<br>
rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq<br>
dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm<br>
pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes<br>
xsave avx f16c rdrand lahf_lm abm cpuid_fault epb invpcid_single pti<br>
ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase<br>
tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc<br>
cqm_occup_llc dtherm ida arat pln pts md_clear flush_l1d<br>
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass<br>
l1tf mds swapgs itlb_multihit<br>
bogomips : 5200.46<br>
clflush size : 64<br>
cache_alignment : 64<br>
address sizes : 46 bits physical, 48 bits virtual<br>
power management:<br>
<br>
# virt-host-validate<br>
QEMU: Checking for hardware virtualization<br>
: PASS<br>
QEMU: Checking if device /dev/kvm exists<br>
: PASS<br>
QEMU: Checking if device /dev/kvm is accessible<br>
: PASS<br>
QEMU: Checking if device /dev/vhost-net exists<br>
: PASS<br>
QEMU: Checking if device /dev/net/tun exists<br>
: PASS<br>
QEMU: Checking for cgroup 'cpu' controller support<br>
: PASS<br>
QEMU: Checking for cgroup 'cpuacct' controller support<br>
: PASS<br>
QEMU: Checking for cgroup 'cpuset' controller support<br>
: PASS<br>
QEMU: Checking for cgroup 'memory' controller support<br>
: PASS<br>
QEMU: Checking for cgroup 'devices' controller support<br>
: PASS<br>
QEMU: Checking for cgroup 'blkio' controller support<br>
: PASS<br>
QEMU: Checking for device assignment IOMMU support<br>
: PASS<br>
QEMU: Checking if IOMMU is enabled by kernel<br>
: WARN (IOMMU appears to be disabled in kernel. Add<br>
intel_iommu=on to kernel cmdline arguments)<br>
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