On Mon, 2017-11-13 at 10:26 +1100, Benjamin Herrenschmidt wrote:
> On Sat, 2017-11-11 at 10:03 -0500, Mathieu Desnoyers wrote:
> > x86 has a missing core serializing instruction in migration scenarios.
> >
> > Given that x86-32 can return to user-space with sysexit, and x86-64
> > through sysretq
On Sat, 2017-11-11 at 10:03 -0500, Mathieu Desnoyers wrote:
> x86 has a missing core serializing instruction in migration scenarios.
>
> Given that x86-32 can return to user-space with sysexit, and x86-64
> through sysretq and sysretl, which are not core serializing, the
> following user-space sel
Fixing the sta...@kernel.org CC.
- On Nov 11, 2017, at 10:03 AM, Mathieu Desnoyers
mathieu.desnoy...@efficios.com wrote:
> x86 has a missing core serializing instruction in migration scenarios.
>
> Given that x86-32 can return to user-space with sysexit, and x86-64
> through sysretq and sys
x86 has a missing core serializing instruction in migration scenarios.
Given that x86-32 can return to user-space with sysexit, and x86-64
through sysretq and sysretl, which are not core serializing, the
following user-space self-modifiying code (JIT) scenario can occur:
CPU 0
4 matches
Mail list logo
