path: root/virt
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authorJan Kiszka <jan.kiszka@siemens.com>2012-04-24 16:40:17 +0200
committerMarcelo Tosatti <mtosatti@redhat.com>2012-04-27 19:40:29 -0300
commitb6ddf05ff68d81a7c1736717faf492b70e9bf4f9 (patch)
treedbcf0f64e8bd0e420a498b6d074b5f0d1afc91ed /virt
parent0589ff6c11d8128cf053c3ddc75b0f6d8b71c62b (diff)
KVM: x86: Run PIT work in own kthread
We can't run PIT IRQ injection work in the interrupt context of the host timer. This would allow the user to influence the handler complexity by asking for a broadcast to a large number of VCPUs. Therefore, this work was pushed into workqueue context in 9d244caf2e. However, this prevents prioritizing the PIT injection over other task as workqueues share kernel threads. This replaces the workqueue with a kthread worker and gives that thread a name in the format "kvm-pit/<owner-process-pid>". That allows to identify and adjust the kthread priority according to the VM process parameters. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt')
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