On 04/27/2011 12:06 PM, Jan Kiszka wrote:
>
> We can simply drop all route entries that are used exclusively in qemu
> (i.e. not bound to an irqfd) and let the cache rebuild itself.
When should they be dropped?
Whenever we need to allocate a new routing entry, but cannot because it
is full.
def kvm_send_msi_message(addr, val):
gsi = route_cache.get((addr, val), None)
if gsi is None:
expire_volatile_route_cache_entries_if_full()
gsi = alloc_gsi_cache_entry()
route_cache[(addr, val)] = gsi
update_route_cache()
kvm_irq_line(gsi, 1)
kvm_irq_line(gsi, 0)
The code would have to be in kvm.c, where it can track whether an entry
is volatile or persistent.
--
error compiling committee.c: too many arguments to function
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