On Thu, May 09, 2019 at 02:44:39PM +0100, Peter Maydell wrote: > On Sun, 5 May 2019 at 16:41, Alex Bennée <alex.ben...@linaro.org> wrote: > > > > > > Paolo Bonzini <pbonz...@redhat.com> writes: > > > > > *** BLURB HERE *** > > > > I assume there was going to be a bit more background here? > > Mmm, could we have the rationale, please ?
Paolo can add more if necessary, but my understanding is: 1. It's required for Intel Control-flow Enforcement Technology (CET). The existing ucontext backend doesn't work with CET. 2. It's faster than the existing ucontext implementation.
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