Re: [Xen-devel] Task Switching and Xen-SVM

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 27/10/06 7:28 am, "Vivek Mohan" <vivek.mt@xxxxxxxxx> wrote:

> I was just going through the (svm.c) svm_vmexit_handler() in the SVM
> part of Xen, and saw that:
> 
> case VMEXIT_TASK_SWITCH:
>          __hvm_bug(regs);
>          break;
> 
> task switches are not intercepted and handled. I was wondering if it
> is not so, then how do you manage consistency of the VM if the Guest
> does a task switch (which could alter the value of CR3)? Am I missing
> something here?

Task switches aren't currently supported. The guest is marked as 'crashed'
if it attempts to do one.

 -- Keir



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