2 ms·
Interesting. I wonder to what extent one could trap vectorization instructions in e.g. KVM. Presumably they are unprivileged instructions on x86?
by drvdevd 10y ago
Interesting. I wonder to what extent one could trap vectorization instructions in e.g. KVM. Presumably they are unprivileged instructions on x86?
- dom0 10y ago> Presumably they are unprivileged instructions on x86? They're all unprivileged; having to go to the kernel would defeat the purpose most of the time. Also, trapping them wouldn't make a difference. Fixing the CPUID fields on the other hand (so that these code paths are not taken in the first place)...