evtchn: convert per-channel lock to be IRQ-safe
authorJan Beulich <jbeulich@suse.com>
Tue, 22 Sep 2020 13:51:28 +0000 (15:51 +0200)
committerJan Beulich <jbeulich@suse.com>
Tue, 22 Sep 2020 13:51:28 +0000 (15:51 +0200)
commitc0ddc8634845aba50774add6e4b73fdaffc82656
treef815bab2fa961908cdf7a2a397d193f9724a0de8
parent8d385b247bca40ece40c9279391054bc98934325
evtchn: convert per-channel lock to be IRQ-safe

... in order for send_guest_{global,vcpu}_virq() to be able to make use
of it.

This is part of XSA-343.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Julien Grall <jgrall@amazon.com>
xen/common/event_channel.c