Merge branch 'rmobile-fixes-for-linus' of git://github.com/pmundt/linux-sh

[pandora-kernel.git] / drivers / xen / xenbus / xenbus_client.c

diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index 81c3ce6..1906125 100644 (file)
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -35,6 +35,7 @@
 #include <linux/vmalloc.h>
 #include <linux/export.h>
 #include <asm/xen/hypervisor.h>
+#include <asm/xen/page.h>
 #include <xen/interface/xen.h>
 #include <xen/interface/event_channel.h>
 #include <xen/events.h>
@@ -436,19 +437,20 @@ EXPORT_SYMBOL_GPL(xenbus_free_evtchn);
 int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr)
 {
        struct gnttab_map_grant_ref op = {
-               .flags = GNTMAP_host_map,
+               .flags = GNTMAP_host_map | GNTMAP_contains_pte,
                .ref   = gnt_ref,
                .dom   = dev->otherend_id,
        };
        struct vm_struct *area;
+       pte_t *pte;
 
        *vaddr = NULL;
 
-       area = alloc_vm_area(PAGE_SIZE);
+       area = alloc_vm_area(PAGE_SIZE, &pte);
        if (!area)
                return -ENOMEM;
 
-       op.host_addr = (unsigned long)area->addr;
+       op.host_addr = arbitrary_virt_to_machine(pte).maddr;
 
        if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1))
                BUG();
@@ -527,6 +529,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
        struct gnttab_unmap_grant_ref op = {
                .host_addr = (unsigned long)vaddr,
        };
+       unsigned int level;
 
        /* It'd be nice if linux/vmalloc.h provided a find_vm_area(void *addr)
         * method so that we don't have to muck with vmalloc internals here.
@@ -548,6 +551,8 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
        }
 
        op.handle = (grant_handle_t)area->phys_addr;
+       op.host_addr = arbitrary_virt_to_machine(
+               lookup_address((unsigned long)vaddr, &level)).maddr;
 
        if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1))
                BUG();