[Xen-devel] Stack switching in a PV guest

["Simon Martin" <smartin@xxxxxxxxxxxx>]

Hi all,

 

I am currently trying to implement multitasking inside my little PV. This is done by a a simple stack switch.

 

Whenever I touch the stack in the PV it crashes. I assume that this is due to the iret at the end of the event handler returning control to the Hypervisor. Can anyone point me in the right direction to sort this out please.

 

Regards.

 

 

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