From: David Woodhouse <dwmw@amazon.co.uk>
Date: Sun, 1 Jan 2023 23:49:25 +0000 (+0000)
Subject: hw/xen: Add emulated evtchn ops
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=645f000afdd046092049e3f10cb09e4654355b15;p=users%2Fdwmw2%2Fqemu.git

hw/xen: Add emulated evtchn ops

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---

diff --git a/hw/i386/kvm/xen_evtchn.c b/hw/i386/kvm/xen_evtchn.c
index 561f57117f..ee50839804 100644
--- a/hw/i386/kvm/xen_evtchn.c
+++ b/hw/i386/kvm/xen_evtchn.c
@@ -29,6 +29,7 @@
 #include "hw/i386/pc.h"
 #include "hw/pci/pci.h"
 #include "hw/irq.h"
+#include "hw/xen/xen_backend_ops.h"
 
 #include "xen_evtchn.h"
 #include "xen_overlay.h"
@@ -195,6 +196,17 @@ static const TypeInfo xen_evtchn_info = {
     .class_init    = xen_evtchn_class_init,
 };
 
+static struct evtchn_backend_ops emu_evtchn_backend_ops = {
+    .open = xen_be_evtchn_open,
+    .bind_interdomain = xen_be_evtchn_bind_interdomain,
+    .unbind = xen_be_evtchn_unbind,
+    .close = xen_be_evtchn_close,
+    .get_fd = xen_be_evtchn_fd,
+    .notify = xen_be_evtchn_notify,
+    .unmask = xen_be_evtchn_unmask,
+    .pending = xen_be_evtchn_pending,
+};
+
 void xen_evtchn_create(void)
 {
     XenEvtchnState *s = XEN_EVTCHN(sysbus_create_simple(TYPE_XEN_EVTCHN,
@@ -208,6 +220,9 @@ void xen_evtchn_create(void)
     for (i = 0; i < GSI_NUM_PINS; i++) {
         sysbus_init_irq(SYS_BUS_DEVICE(s), &s->gsis[i]);
     }
+
+    /* Set event channel functions for backend drivers to use */
+    xen_evtchn_ops = &emu_evtchn_backend_ops;
 }
 
 void xen_evtchn_connect_gsis(qemu_irq *system_gsis)