[PATCH v7 17/19] xen: xenstore changes to support PVH

Roger Pau Monne roger.pau at citrix.com
Thu Dec 19 19:25:24 UTC 2013


---
 sys/xen/xenstore/xenstore.c |   21 ++++++++++-----------
 1 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/sys/xen/xenstore/xenstore.c b/sys/xen/xenstore/xenstore.c
index bcf6357..2893c84 100644
--- a/sys/xen/xenstore/xenstore.c
+++ b/sys/xen/xenstore/xenstore.c
@@ -229,13 +229,11 @@ struct xs_softc {
 	 */
 	struct sx xenwatch_mutex;
 
-#ifdef XENHVM
 	/**
 	 * The HVM guest pseudo-physical frame number.  This is Xen's mapping
 	 * of the true machine frame number into our "physical address space".
 	 */
 	unsigned long gpfn;
-#endif
 
 	/**
 	 * The event channel for communicating with the
@@ -1141,13 +1139,15 @@ xs_attach(device_t dev)
 	/* Initialize the interface to xenstore. */
 	struct proc *p;
 
-#ifdef XENHVM
-	xs.evtchn = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN);
-	xs.gpfn = hvm_get_parameter(HVM_PARAM_STORE_PFN);
-	xen_store = pmap_mapdev(xs.gpfn * PAGE_SIZE, PAGE_SIZE);
-#else
-	xs.evtchn = xen_start_info->store_evtchn;
-#endif
+	if (xen_hvm_domain()) {
+		xs.evtchn = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN);
+		xs.gpfn = hvm_get_parameter(HVM_PARAM_STORE_PFN);
+		xen_store = pmap_mapdev(xs.gpfn * PAGE_SIZE, PAGE_SIZE);
+	} else if (xen_pv_domain()) {
+		xs.evtchn = HYPERVISOR_start_info->store_evtchn;
+	} else {
+		panic("Unknown domain type, cannot initialize xenstore\n");
+	}
 
 	TAILQ_INIT(&xs.reply_list);
 	TAILQ_INIT(&xs.watch_events);
@@ -1256,9 +1256,8 @@ static devclass_t xenstore_devclass;
  
 #ifdef XENHVM
 DRIVER_MODULE(xenstore, xenpci, xenstore_driver, xenstore_devclass, 0, 0);
-#else
-DRIVER_MODULE(xenstore, nexus, xenstore_driver, xenstore_devclass, 0, 0);
 #endif
+DRIVER_MODULE(xenstore, nexus, xenstore_driver, xenstore_devclass, 0, 0);
 
 /*------------------------------- Sysctl Data --------------------------------*/
 /* XXX Shouldn't the node be somewhere else? */
-- 
1.7.7.5 (Apple Git-26)



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