Displaying 4 results from an estimated 4 matches for "flush_l1d".
2018 Sep 30
1
libvirt reported capabilities doesn't match /proc/cpuinfo while the model does match
...perfmperf pni pclmulqdq dtes64 monitor
ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm
cpuid_fault epb pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority
ept vpid fsgsbase smep erms xsaveopt dtherm ida arat pln pts flush_l1d
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf
This results on my cpu being detected, if I allow host copy, as AMD chip and
the guest becomes unbearably slow. The model of the host cpu is correct.
I'm using Debian testing/unstable.
Compiled against library: libvirt 4....
2019 Jun 12
1
Speculative attack mitigations
...se3 cx16 sse4_1 sse4_2 popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm fsgsbase erms xsaveopt dtherm ida arat pln pts
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds
You will note that there is a lack of flags for ssbd, spec_ctrl, intel_stibp, flush_l1d, ibrs, etc.
# for i in /sys/devices/system/cpu/vulnerabilities/* ; do echo -n "$i : "; cat $i ; done
/sys/devices/system/cpu/vulnerabilities/l1tf : Mitigation: PTE Inversion
/sys/devices/system/cpu/vulnerabilities/mds : Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host stat...
2019 Dec 26
2
(no subject)
...bg fma cx16 xtpr pdcm pcid sse4_1
sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm
abm cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi
flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid
xsaveopt dtherm ida arat pln pts md_clear flush_l1d cpufreq
*-pci
description: Host bridge
product: Haswell-ULT DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 0b
width: 32 bits
clock: 33MHz
configuration: dri...
2020 Sep 14
0
Re: [ovirt-users] Re: Testing ovirt 4.4.1 Nested KVM on Skylake-client (core i5) does not work
...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'>Sky...