On Tue, 21 Nov 2017, Andy Lutomirski wrote: > When we start using an entry trampoline, a #GP from userspace will > be delivered on the entry stack, not on the task stack. Fix the > espfix64 #DF fixup to set up #GP according to TSS.SP0, rather than > assuming that pt_regs + 1 == SP0. This won't change anything > without an entry stack, but it will make the code continue to work > when an entry stack is added. > > Signed-off-by: Andy Lutomirski <l...@kernel.org>
Reviewed-by: Thomas Gleixner <t...@linutronix.de>