On Tue, Oct 01, 2024, Manali Shukla wrote: > Add support for generating Virtualization feature names in capflags.c > and use the resulting x86_virt_flags to print the virt flags in > /proc/cpuinfo. > > Currently, it is difficult to check if a feature is supported in _KVM_. > Manually querying cpuid to know whether the feature is supported or not > can be quite tedious at times. > > Print the features supported in KVM hypervisor in a dedicated "virt" > line instead of adding them to the common "flags". First off, printing flags in a separate section doesn't magically connect them to KVM support. E.g. if you cut this series after patch 2, BUS_LOCK_THRESHOLD will show up in "virt" despite KVM not supporting the feature. Second, deviating from the X86_FEATURE_* syntax will make it _harder_ for KVM to manage its configuration. Third, this is completely orthogonal to supporting bus lock threshold in KVM, i.e. belongs in a separate series.
