Ingo Molnar wrote:
* Avi Kivity <[email protected]> wrote:
+#ifdef CONFIG_SCHED_KVM
+static __read_mostly struct sched_kvm_hooks kvm_hooks;
+#endif
please just add a current->put_vcpu() function pointer instead of this
hooks thing.
Won't that increase task_struct (16 bytes on 64-bit) unnecessarily? The
function pointers are common to all virtual machines.
static inline void prepare_task_switch(struct rq *rq, struct task_struct *next)
{
+ unload_kvm_vcpu(current);
prepare_lock_switch(rq, next);
prepare_arch_switch(next);
}
@@ -1860,6 +1912,7 @@ static inline void finish_task_switch(struct rq *rq, struct task_struct *prev)
prev_state = prev->state;
finish_arch_switch(prev);
finish_lock_switch(rq, prev);
+ reload_kvm_vcpu(current);
ok, this looks certainly cheap enough from a scheduler POV, and it
cleans up the whole KVM/scheduling interaction quite nicely. (I'd not
bother with tweaking the migration logic, there's enough incentive for
the scheduler to keep tasks from migrating unnecessarily.)
Okay.
--
error compiling committee.c: too many arguments to function
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