Public bug reported:
On Ubuntu Noble 24.04, on a Intel Sapphire rapids CPU equipped platform,
when i run
virsh capabilities
it does not detect the right CPU model:
<capabilities>
<host>
<uuid>cfae836f-0098-475d-9924-8de9d69a5c98</uuid>
<cpu>
<arch>x86_64</arch>
<model>Broadwell-noTSX-IBRS</model>
<vendor>Intel</vendor>
<microcode version='721421777'/>
<signature family='6' model='143' stepping='8'/>
<counter name='tsc' frequency='2400000000' scaling='yes'/>
<topology sockets='1' dies='1' cores='48' threads='2'/>
<maxphysaddr mode='emulate' bits='45'/>
I expect the model SapphireRapids or SapphireRapids-noTSX or
SapphireRapids-noTSX-IBRS to be shown.
Here is the lscpu output:
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 45 bits physical, 57 bits virtual
Byte Order: Little Endian
CPU(s): 192
On-line CPU(s) list: 0-191
Vendor ID: GenuineIntel
Model name: Intel(R) Xeon(R) Platinum 8488C
CPU family: 6
Model: 143
Thread(s) per core: 2
Core(s) per socket: 48
Socket(s): 2
Stepping: 8
CPU(s) scaling MHz: 21%
CPU max MHz: 3800.0000
CPU min MHz: 800.0000
BogoMIPS: 4800.00
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 no
nstop_tsc cpuid aperfmperf tsc_known_freq pni
pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fm
a cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe
popcnt tsc_deadline_timer aes xsave avx f16c rdrand la
hf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cat_l2
cdp_l3 tdx_host_platform intel_ppin cdp_l2 ssbd mba i
brs ibpb stibp ibrs_enhanced tpr_shadow flexpriority
ept vpid ept_ad fsgsbase tsc_adjust sgx bmi1 avx2 smep
bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed
adx smap avx512ifma clflushopt clwb intel_pt avx512cd
sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1
xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local s
plit_lock_detect user_shstk avx_vnni avx512_bf16
wbnoinvd dtherm ida arat pln pts hwp hwp_act_window hwp_ep
p hwp_pkg_req hfi vnmi avx512vbmi umip pku ospke
waitpkg avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx5
12_bitalg tme avx512_vpopcntdq la57 rdpid
bus_lock_detect cldemote movdiri movdir64b enqcmd sgx_lc fsrm md_
clear serialize tsxldtrk pconfig arch_lbr ibt
amx_bf16 avx512_fp16 amx_tile amx_int8 flush_l1d arch_capabil
ities
Virtualization features:
Virtualization: VT-x
Caches (sum of all):
L1d: 4.5 MiB (96 instances)
L1i: 3 MiB (96 instances)
L2: 192 MiB (96 instances)
L3: 210 MiB (2 instances)
NUMA:
NUMA node(s): 2
NUMA node0 CPU(s): 0-47,96-143
NUMA node1 CPU(s): 48-95,144-191
Vulnerabilities:
Gather data sampling: Not affected
Itlb multihit: Not affected
L1tf: Not affected
Mds: Not affected
Meltdown: Not affected
Mmio stale data: Not affected
Reg file data sampling: Not affected
Retbleed: Not affected
Spec rstack overflow: Not affected
Spec store bypass: Mitigation; Speculative Store Bypass disabled via
prctl
Spectre v1: Mitigation; usercopy/swapgs barriers and __user
pointer sanitization
Spectre v2: Mitigation; Enhanced / Automatic IBRS; IBPB
conditional; RSB filling; PBRSB-eIBRS SW sequence; BHI BHI_DIS_
S
Srbds: Not affected
Tsx async abort: Not affected
** Affects: libvirt (Ubuntu)
Importance: Undecided
Assignee: Hector CAO (hectorcao)
Status: New
** Changed in: libvirt (Ubuntu)
Assignee: (unassigned) => Hector CAO (hectorcao)
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2084102
Title:
Sapphire rapids not recognized by virsh capabilities
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/2084102/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
