[Qemu-devel] [PATCH v6 4/8] virtio-balloon: use virtio wrappers to access page frame numbers

From: Greg Kurz <gkurz@linux.vnet.ibm.com>
To: afaerber@suse.de
Cc: kwolf@redhat.com, peter.maydell@linaro.org,
	thuth@linux.vnet.ibm.com, mst@redhat.com, marc.zyngier@arm.com,
	rusty@rustcorp.com.au, agraf@suse.de, qemu-devel@nongnu.org,
	stefanha@redhat.com, cornelia.huck@de.ibm.com,
	pbonzini@redhat.com, anthony@codemonkey.ws
Subject: [Qemu-devel] [PATCH v6 4/8] virtio-balloon: use virtio wrappers to access page frame numbers
Date: Fri, 28 Mar 2014 11:57:41 +0100	[thread overview]
Message-ID: <20140328105740.21018.82087.stgit@bahia.local> (raw)
In-Reply-To: <20140328105709.21018.88000.stgit@bahia.local>

From: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
[ use per-device needs_byteswap flag,
  Greg Kurz <gkurz@linux.vnet.ibm.com> ]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
---
 hw/virtio/virtio-balloon.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index a470a0b..e0b31ba 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -30,6 +30,7 @@
 #endif
 
 #include "hw/virtio/virtio-bus.h"
+#include "hw/virtio/virtio-access.h"
 
 static void balloon_page(void *addr, int deflate)
 {
@@ -192,7 +193,8 @@ static void virtio_balloon_handle_output(VirtIODevice *vdev, VirtQueue *vq)
             ram_addr_t pa;
             ram_addr_t addr;
 
-            pa = (ram_addr_t)ldl_p(&pfn) << VIRTIO_BALLOON_PFN_SHIFT;
+            pa = (ram_addr_t)virtio_ldl_p(&pfn,
+                                          vdev) << VIRTIO_BALLOON_PFN_SHIFT;
             offset += 4;
 
             /* FIXME: remove get_system_memory(), but how? */
