On 20/11/19 17:49, Eduardo Habkost wrote: > One of the mitigation methods for TAA[1] is to disable TSX > support on the host system. Linux added a mechanism to disable > TSX globally through the kernel command line, and many Linux > distributions now default to tsx=off. This makes existing CPU > models that have HLE and RTM enabled not usable anymore. > > Add new versions of all CPU models that have the HLE and RTM > features enabled, that can be used when TSX is disabled in the > host system.
What is the effect of this when using "-cpu CascadeLake-Server" and upgrading QEMU? Would it automatically switch to the new version? If so, would it be better to include a duplicate of the models (and if so, that would conflict with my VMX features patch, which is also for 4.2). Paolo
