Re: [Xen-devel] Question re do_switch_stack()

[Kip Macy <kip.macy@xxxxxxxxx>]

The stack_switch you're looking at is for setting the trap stack.

On 6/9/05, Avi Kivity <avi.kivity@xxxxxxxxxxxx> wrote:
> looking at do_stack_switch() (x86-32), I see that the switch is effected
> by moving the new stack pointer into current->arch.kernel_sp. however,
> entry.S only looks at kernel_sp in create_bounce_frame, but only if
> we're not returning into ring 1.
> 
> how then is the switch caused? obviously the call to do_stack_switch
> came from ring 1.
> 
> confused,
> Avi
> 
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