On Thu, Oct 11, 2018 at 8:25 PM Andy Lutomirski <l...@kernel.org> wrote: > What exactly is this trying to protect against? And how many cycles > should we expect L1D_FLUSH to take?
As far as I could measure, I got 1660 cycles per wrmsr 0x10b, 0x1 on a Skylake chip, and 1220 cycles on a Skylake-SP.