On 10/21/2009 04:43 PM, Orit Wasserman wrote:
It is possible L1 called vmlaunch but we didn't actually run L2 (for example there was an interrupt and enable_irq_window switched back to L1 before running L2). L1 thinks the vmlaunch was successful and call vmresume in the next time but KVM needs to call vmlaunch for L2.
Is it really possible? If vmlaunch is started, it should complete unconditionally for L1. The irq window should be recalculated based on the guest vmcs "exit on external interrupt" and guest eflags/cr8 etc.
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