kvm: Shutdown KVM and disconnect performance counters on fork
Review Request #3280 - Created Jan. 14, 2016 and submitted
| Information | |
|---|---|
| Andreas Sandberg | |
| gem5 | |
| default | |
| Reviewers | |
| Default | |
Changeset 11300:5d97d819326e --------------------------- kvm: Shutdown KVM and disconnect performance counters on fork We can't/shouldn't use KVM after a fork since the child and parent probably point to the same VM. Knowing the exact effects of this is hard, but they are likely to be messy. We also disconnect the performance counters attached to the guest. This works around what seems to be a kernel bug where spurious SIGIOs get delivered to the forked child process. Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se> [sascha.bischoff@arm.com: Rebased patches onto a newer gem5 version] Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com> [andreas.sandberg@arm.com: Fatal if entering KVM in child process ] Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Ship It!