LAPLACE Cyprien wrote:
An example: in kernel/pid.c:alloc_pid(), if one of the guest CPUs is
descheduled when holding the pidmap_lock, what happens to the other
guest CPUs who want to alloc/free pids ? Are they blocked too ?
Yup. This is where it's really nice to have directed yields, where
LAPLACE Cyprien wrote:
> I wonder how the guest domain can be denied timer interrupts for such a
> long time ? The only reason I see is that the guest domain is not
> scheduled at all (host domain or another higher priority guest running).
>
> Now in SMP host and guest, what happens if a guest CPU
LAPLACE Cyprien wrote:
I wonder how the guest domain can be denied timer interrupts for such a
long time ? The only reason I see is that the guest domain is not
scheduled at all (host domain or another higher priority guest running).
Now in SMP host and guest, what happens if a guest CPU is
LAPLACE Cyprien wrote:
An example: in kernel/pid.c:alloc_pid(), if one of the guest CPUs is
descheduled when holding the pidmap_lock, what happens to the other
guest CPUs who want to alloc/free pids ? Are they blocked too ?
Yup. This is where it's really nice to have directed yields, where
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