#Bochs vs qemu Patch
I filed this bugs cause this is a new function introduced in libvirt, which needs some patch info and testing.Īlso found the new changes about decode element in cpu_map.xml as follows on libvirt-6.3.0-1.module+el8.3.0+6478+69f490bb.x86_64. Or tools higher in the stack like virt-manager.
Of usable CPUs to use in the likes of virsh domcapabilities In cpu-maps users end up without modern CPU types in the list On systems disabling the features without those types defined
Models that have HLE and RTM enabled not usable anymore.Īdd new versions of all CPU models that have the HLE and RTMįeatures enabled, that can be used when TSX is disabled in the TSX globally through the kernel command line, and many Linuxĭistributions now default to tsx=off. One of the mitigation methods for TAA is to disable TSX There is a commit info from upstream QEMU. Showed in the steps above, Skylake-Server-noTSX-IBRS, Skylake-Client-noTSX-IBRS, Icelake-Server-noTSX, Icelake-Client-noTSX, Cascadelake-Server-noTSX, 5 -noTSX cpu models are newly introduced.ġ. # diff 60017-libvirt-domcap 6301-libvirt-domcap # virsh domcapabilities > 6301-libvirt-domcap # ls /usr/share/libvirt/cpu_map/ > 6301-libvirt
# virsh domcapabilities > 60017-libvirt-domcapĢ. # ls /usr/share/libvirt/cpu_map/ > 60017-libvirt Version-Release number of selected component (if applicable): 5 more -noTSX x86 CPU models are newly introduced since libvirt-6.3.0-1.module+el8.3.0+6478+69f490bb.x86_64, including Skylake-Server-noTSX-IBRS, Skylake-Client-noTSX-IBRS, Icelake-Server-noTSX, Icelake-Client-noTSX, Cascadelake-Server-noTSX
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