[PATCH v2 for-next v2 3/8] x86/mm: carve out replace_grant_pv_mapping

[Wei Liu <wei.liu2@citrix.com>]

We will later split out PV specific code to pv/mm.c.

No functional change.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
 xen/arch/x86/mm.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 2137f2b6f8..823aba01a8 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -4332,23 +4332,20 @@ static int replace_grant_p2m_mapping(
     return GNTST_okay;
 }
 
-int replace_grant_host_mapping(
-    uint64_t addr, unsigned long frame, uint64_t new_addr, unsigned int flags)
+static int replace_grant_pv_mapping(uint64_t addr, unsigned long frame,
+                                    uint64_t new_addr, unsigned int flags)
 {
     struct vcpu *curr = current;
     l1_pgentry_t *pl1e, ol1e;
     unsigned long gl1mfn;
     struct page_info *l1pg;
     int rc;
-    
-    if ( paging_mode_external(current->domain) )
-        return replace_grant_p2m_mapping(addr, frame, new_addr, flags);
 
     if ( flags & GNTMAP_contains_pte )
     {
         if ( !new_addr )
             return destroy_grant_pte_mapping(addr, frame, curr->domain);
-        
+
         return GNTST_general_error;
     }
 
@@ -4408,6 +4405,15 @@ int replace_grant_host_mapping(
     return rc;
 }
 
+int replace_grant_host_mapping(uint64_t addr, unsigned long frame,
+                               uint64_t new_addr, unsigned int flags)
+{
+    if ( paging_mode_external(current->domain) )
+        return replace_grant_p2m_mapping(addr, frame, new_addr, flags);
+
+    return replace_grant_pv_mapping(addr, frame, new_addr, flags);
+}
+
 int donate_page(
     struct domain *d, struct page_info *page, unsigned int memflags)
 {
-- 
2.11.0


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