[Qemu-devel] [PATCH 2/2] vfio: cpu: Use "real" page size API

[Peter Crosthwaite]

This is system level code, and should only depend on the host page
size, not the target page size.

Note that HOST_PAGE_SIZE is misleadingly lead and is really aligning
to both host and target page size. Hence it's replacement with
REAL_HOST_PAGE_SIZE.

Signed-off-by: Peter Crosthwaite <crosthwaite.pe...@gmail.com>
---
 hw/vfio/pci.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index e0e339a..cf9791e 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -2388,7 +2388,7 @@ static void vfio_map_bar(VFIOPCIDevice *vdev, int nr)
      * potentially insert a direct-mapped subregion before and after it.
      */
     if (vdev->msix && vdev->msix->table_bar == nr) {
-        size = vdev->msix->table_offset & qemu_host_page_mask;
+        size = vdev->msix->table_offset & qemu_real_host_page_mask;
     }
 
     strncat(name, " mmap", sizeof(name) - strlen(name) - 1);
@@ -2401,8 +2401,9 @@ static void vfio_map_bar(VFIOPCIDevice *vdev, int nr)
     if (vdev->msix && vdev->msix->table_bar == nr) {
         uint64_t start;
 
-        start = HOST_PAGE_ALIGN((uint64_t)vdev->msix->table_offset +
-                                (vdev->msix->entries * PCI_MSIX_ENTRY_SIZE));
+        start = REAL_HOST_PAGE_ALIGN((uint64_t)vdev->msix->table_offset +
+                                     (vdev->msix->entries *
+                                      PCI_MSIX_ENTRY_SIZE));
 
         size = start < bar->region.size ? bar->region.size - start : 0;
         strncat(name, " msix-hi", sizeof(name) - strlen(name) - 1);
-- 
1.9.1