FIFO event channels allow ports up to 2^17, so we need to use a wider
field in struct pirq. Move "masked" such that it may share the 8-byte
slot with struct arch_pirq on 64-bit arches, rather than leaving a
7-byte hole in all cases.
Take the opportunity and also add a comment regarding "arch" placement
within the structure.
Signed-off-by: Jan Beulich <jbeul...@suse.com>
--- a/xen/include/xen/irq.h
+++ b/xen/include/xen/irq.h
@@ -127,9 +127,10 @@ struct vcpu;
struct pirq {
int pirq;
- u16 evtchn;
- bool_t masked;
+ evtchn_port_t evtchn;
struct rcu_head rcu_head;
+ bool masked;
+ /* Architectures may require this field to be last. */
struct arch_pirq arch;
};
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