From 673fd82c507cf2a674ca6ec6d84d8d2854a6d78c Mon Sep 17 00:00:00 2001
From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Date: Thu, 6 Aug 2020 12:42:49 +0300
Subject: xen: Port Xen event channel driver from mini-os

Make required updates to run on u-boot. Strip functionality
not needed by U-boot.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko@epam.com>
---
 drivers/xen/hypervisor.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/xen/hypervisor.c')

diff --git a/drivers/xen/hypervisor.c b/drivers/xen/hypervisor.c
index 108e9701d61..63fed6074f3 100644
--- a/drivers/xen/hypervisor.c
+++ b/drivers/xen/hypervisor.c
@@ -20,6 +20,7 @@
 #include <linux/bug.h>
 
 #include <xen/hvm.h>
+#include <xen/events.h>
 #include <xen/interface/memory.h>
 
 #define active_evtchns(cpu, sh, idx)	\
@@ -163,9 +164,7 @@ void do_hypervisor_callback(struct pt_regs *regs)
 			l2 &= ~(1UL << l2i);
 
 			port = (l1i * (sizeof(unsigned long) * 8)) + l2i;
-			/* TODO: handle new event: do_event(port, regs); */
-			/* Suppress -Wunused-but-set-variable */
-			(void)(port);
+			do_event(port, regs);
 		}
 	}
 
@@ -236,5 +235,6 @@ void xen_init(void)
 	debug("%s\n", __func__);
 
 	map_shared_info(NULL);
+	init_events();
 }
 
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