On 04/22/2010 08:26 AM, Marek Olszewski wrote:
Under VMX without EPT, I do not seeing any VM Exits due to task switches. Is there a way to enable these? I'm looking to intercept the guest whenever it does a iret.
See EXIT_REASON_TASK_SWITCH. However, that won't fire on any iret, only irets that generate task switches. You can ask for exits on irets by setting CPU_BASED_VIRTUAL_NMI_PENDING and GUEST_INTR_STATE_NMI, and looking for EXIT_REASON_NMI_WINDOW.
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