On Tue, Jan 16, 2024 at 5:02 AM Mark Rutland <mark.rutland@xxxxxxx> wrote: > > Currently the ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD workaround isn't > quite right, as it is supposed to be applied after the last explicit > memory access, but is immediately followed by an LDR. This isn't necessary. The LDR in question is an unprivileged load from the EL0 stack. The erratum write-up is not really clear in that regard. It's the same as the KPTI case. After switching the page tables, there are unprivileged loads from the EL0 stack. Rob
