[Qemu-devel] [PATCH v7 4/8] virtio-balloon: use virtio wrappers to access page frame numbers

[Greg Kurz]

From: Rusty Russell <address@hidden>

This one can't get target independant because of TARGET_PAGE_SIZE.

Signed-off-by: Rusty Russell <address@hidden>
Reviewed-by: Anthony Liguori <address@hidden>
[ pass VirtIODevice * to memory accessors,
  Greg Kurz <address@hidden> ]
Signed-off-by: Greg Kurz <address@hidden>
---
 hw/virtio/virtio-balloon.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index a470a0b..ba2e74e 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)
 {
@@ -191,8 +192,9 @@ static void virtio_balloon_handle_output(VirtIODevice 
*vdev, VirtQueue *vq)
         while (iov_to_buf(elem.out_sg, elem.out_num, offset, &pfn, 4) == 4) {
             ram_addr_t pa;
             ram_addr_t addr;
+            int p = virtio_ldl_p(vdev, &pfn);
 
-            pa = (ram_addr_t)ldl_p(&pfn) << VIRTIO_BALLOON_PFN_SHIFT;
+            pa = (ram_addr_t) p << VIRTIO_BALLOON_PFN_SHIFT;
             offset += 4;
 
             /* FIXME: remove get_system_memory(), but how? */
@@ -233,8 +235,8 @@ static void virtio_balloon_receive_stats(VirtIODevice 
*vdev, VirtQueue *vq)
 
     while (iov_to_buf(elem->out_sg, elem->out_num, offset, &stat, sizeof(stat))
            == sizeof(stat)) {
-        uint16_t tag = tswap16(stat.tag);
-        uint64_t val = tswap64(stat.val);
+        uint16_t tag = virtio_tswap16(vdev, stat.tag);
+        uint64_t val = virtio_tswap64(vdev, stat.val);
 
         offset += sizeof(stat);
         if (tag < VIRTIO_BALLOON_S_NR)