From: kfraser@localhost.localdomain <kfraser@localhost.localdomain>
Date: Thu, 17 Aug 2006 15:32:30 +0000 (+0100)
Subject: [HVM] Allow xenbus to run in an HVM guest.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~15710^2~59
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=05592e02ad24568f053867afdb98ff3aa0323b54;p=xen.git

[HVM] Allow xenbus to run in an HVM guest.
Signed-off-by: Steven Smith <ssmith@xensource.com>
---

diff --git a/linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c b/linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c
index 9668d6d7ae..a508e76461 100644
--- a/linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c
+++ b/linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_probe.c
@@ -45,12 +45,14 @@
 
 #include <asm/io.h>
 #include <asm/page.h>
+#include <asm/maddr.h>
 #include <asm/pgtable.h>
 #include <asm/hypervisor.h>
 #include <xen/xenbus.h>
 #include <xen/xen_proc.h>
 #include <xen/evtchn.h>
 #include <xen/features.h>
+#include <xen/hvm.h>
 
 #include "xenbus_comms.h"
 
@@ -1015,13 +1017,21 @@ static int __init xenbus_probe_init(void)
 		if (xsd_port_intf)
 			xsd_port_intf->read_proc = xsd_port_read;
 #endif
+		xen_store_interface = mfn_to_virt(xen_store_mfn);
 	} else {
 		xenstored_ready = 1;
+#ifdef CONFIG_XEN
 		xen_store_evtchn = xen_start_info->store_evtchn;
 		xen_store_mfn = xen_start_info->store_mfn;
+		xen_store_interface = mfn_to_virt(xen_store_mfn);
+#else
+		xen_store_evtchn = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN);
+		xen_store_mfn = hvm_get_parameter(HVM_PARAM_STORE_PFN);
+		xen_store_interface = ioremap(xen_store_mfn << PAGE_SHIFT,
+					      PAGE_SIZE);
+#endif
 	}
 
-	xen_store_interface = mfn_to_virt(xen_store_mfn);
 
 	xenbus_dev_init();
 
diff --git a/unmodified_drivers/linux-2.6/Makefile b/unmodified_drivers/linux-2.6/Makefile
index 37353776d7..a7a52f8f9e 100644
--- a/unmodified_drivers/linux-2.6/Makefile
+++ b/unmodified_drivers/linux-2.6/Makefile
@@ -1,3 +1,4 @@
 include $(M)/overrides.mk
 
 obj-m += platform-pci/
+obj-m += xenbus/
diff --git a/unmodified_drivers/linux-2.6/mkbuildtree b/unmodified_drivers/linux-2.6/mkbuildtree
index 6002b2722d..382a493796 100644
--- a/unmodified_drivers/linux-2.6/mkbuildtree
+++ b/unmodified_drivers/linux-2.6/mkbuildtree
@@ -5,8 +5,15 @@ C=$PWD
 XEN=$C/../../xen
 XL=$C/../../linux-2.6-xen-sparse
 
+for d in $(find ${XL}/drivers/xen/ -maxdepth 1 -type d | sed -e 1d); do
+    if ! echo $d | egrep -q back; then
+        lndir $d $(basename $d) > /dev/null 2>&1
+    fi
+done
+
 ln -sf ${XL}/drivers/xen/core/gnttab.c platform-pci
 ln -sf ${XL}/drivers/xen/core/features.c platform-pci
+ln -sf ${XL}/drivers/xen/core/xen_proc.c xenbus
 
 mkdir -p include
 mkdir -p include/xen
diff --git a/unmodified_drivers/linux-2.6/xenbus/Kbuild b/unmodified_drivers/linux-2.6/xenbus/Kbuild
new file mode 100644
index 0000000000..1a463ab6e3
--- /dev/null
+++ b/unmodified_drivers/linux-2.6/xenbus/Kbuild
@@ -0,0 +1,10 @@
+include $(M)/overrides.mk
+
+obj-m	+= xenbus.o
+xenbus-objs =
+xenbus-objs += xenbus_comms.o
+xenbus-objs += xenbus_xs.o
+xenbus-objs += xenbus_probe.o 
+xenbus-objs += xenbus_dev.o 
+xenbus-objs += xenbus_client.o 
+xenbus-objs += xen_proc.o