[Xen-changelog] [xen staging] x86/shadow: Use mfn_t in shadow_track_dirty_vram()

[patchbot@xxxxxxx]

commit 053d91d3926c9f0afb54cf52c782482a1087bab3
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Fri Jul 20 17:50:28 2018 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Aug 28 18:42:17 2018 +0100

    x86/shadow: Use mfn_t in shadow_track_dirty_vram()
    
    ... as the only user of sl1mfn would prefer it that way.
    
    No functional change.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Reviewed-by: Tim Deegan <tim@xxxxxxx>
---
 xen/arch/x86/mm/shadow/common.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/mm/shadow/common.c b/xen/arch/x86/mm/shadow/common.c
index e70c18699f..16df41bdea 100644
--- a/xen/arch/x86/mm/shadow/common.c
+++ b/xen/arch/x86/mm/shadow/common.c
@@ -3316,7 +3316,7 @@ int shadow_track_dirty_vram(struct domain *d,
         memcpy(dirty_bitmap, dirty_vram->dirty_bitmap, dirty_size);
     else
     {
-        unsigned long map_mfn = mfn_x(INVALID_MFN);
+        mfn_t map_mfn = INVALID_MFN;
         void *map_sl1p = NULL;
 
         /* Iterate over VRAM to track dirty bits. */
@@ -3354,13 +3354,13 @@ int shadow_track_dirty_vram(struct domain *d,
                         /* Hopefully the most common case: only one mapping,
                          * whose dirty bit we can use. */
                         l1_pgentry_t *sl1e;
-                        unsigned long sl1mfn = paddr_to_pfn(sl1ma);
+                        mfn_t sl1mfn = maddr_to_mfn(sl1ma);
 
-                        if ( sl1mfn != map_mfn )
+                        if ( !mfn_eq(sl1mfn, map_mfn) )
                         {
                             if ( map_sl1p )
                                 unmap_domain_page(map_sl1p);
-                            map_sl1p = map_domain_page(_mfn(sl1mfn));
+                            map_sl1p = map_domain_page(sl1mfn);
                             map_mfn = sl1mfn;
                         }
                         sl1e = map_sl1p + (sl1ma & ~PAGE_MASK);
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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