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| H A D | base.cc | 10858:6734ec272816 Mon Jun 01 14:43:00 EDT 2015 Andreas Sandberg <andreas.sandberg@arm.com> kvm: Handle inst events at the current instruction count There are cases (particularly when attaching GDB) when instruction events are scheduled at the current instruction tick. This used to trigger an assertion error in kvm. This changeset adds a check for this condition and forces KVM to do a quick entry that completes any pending IO operations, but does not execute any new instructions, before servicing the event. We could check if we need to enter KVM at all, but forcing a quick entry is makes the code slightly cleaner and does not hurt correctness (performance is hardly an issue in these cases). |
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