On Tue, 21 Nov 2017, Andy Lutomirski wrote:
> On 64-bit kernels, we used to assume that TSS.sp0 was the current
> top of stack. With the addition of an entry trampoline, this will
> no longer be the case. Store the current top of stack in TSS.sp1,
> which is otherwise unused but shares the same
On 64-bit kernels, we used to assume that TSS.sp0 was the current
top of stack. With the addition of an entry trampoline, this will
no longer be the case. Store the current top of stack in TSS.sp1,
which is otherwise unused but shares the same cacheline.
Signed-off-by: Andy Lutomirski
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