[BLKTAP] Fix Linux and Xen gnttab map operations when mapping into

PTEs above 4GB on PAE systems.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>

diff --git a/linux-2.6-xen-sparse/include/xen/gnttab.h b/linux-2.6-xen-sparse/include/xen/gnttab.h
index 676fca5054beea953ec2a6ec282199a2b96a2759..c710140ee77d3ab5f6d51878d975db2bf27e2bc8 100644 (file)
--- a/linux-2.6-xen-sparse/include/xen/gnttab.h
+++ b/linux-2.6-xen-sparse/include/xen/gnttab.h
@@ -118,7 +118,7 @@ int gnttab_suspend(void);
 int gnttab_resume(void);
 
 static inline void
-gnttab_set_map_op(struct gnttab_map_grant_ref *map, unsigned long addr,
+gnttab_set_map_op(struct gnttab_map_grant_ref *map, uint64_t addr,
                  uint32_t flags, grant_ref_t ref, domid_t domid)
 {
        if (flags & GNTMAP_contains_pte)
@@ -134,7 +134,7 @@ gnttab_set_map_op(struct gnttab_map_grant_ref *map, unsigned long addr,
 }
 
 static inline void
-gnttab_set_unmap_op(struct gnttab_unmap_grant_ref *unmap, unsigned long addr,
+gnttab_set_unmap_op(struct gnttab_unmap_grant_ref *unmap, uint64_t addr,
                    uint32_t flags, grant_handle_t handle)
 {
        if (flags & GNTMAP_contains_pte)

diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 58009872ca51d2cfd3bd1eead0e25221b499c187..88d031fac4fe8d4e9595dfbb086df2fcf458db63 100644 (file)
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -2379,7 +2379,7 @@ int do_mmu_update(
 
 
 static int create_grant_pte_mapping(
-    unsigned long pte_addr, l1_pgentry_t nl1e, struct vcpu *v)
+    uint64_t pte_addr, l1_pgentry_t nl1e, struct vcpu *v)
 {
     int rc = GNTST_okay;
     void *va;
@@ -2403,7 +2403,7 @@ static int create_grant_pte_mapping(
     }
     
     va = map_domain_page(mfn);
-    va = (void *)((unsigned long)va + (pte_addr & ~PAGE_MASK));
+    va = (void *)((unsigned long)va + ((unsigned long)pte_addr & ~PAGE_MASK));
     page = mfn_to_page(mfn);
 
     type = page->u.inuse.type_info & PGT_type_mask;
@@ -2435,7 +2435,7 @@ static int create_grant_pte_mapping(
 }
 
 static int destroy_grant_pte_mapping(
-    unsigned long addr, unsigned long frame, struct domain *d)
+    uint64_t addr, unsigned long frame, struct domain *d)
 {
     int rc = GNTST_okay;
     void *va;
@@ -2454,7 +2454,7 @@ static int destroy_grant_pte_mapping(
     }
     
     va = map_domain_page(mfn);
-    va = (void *)((unsigned long)va + (addr & ~PAGE_MASK));
+    va = (void *)((unsigned long)va + ((unsigned long)addr & ~PAGE_MASK));
     page = mfn_to_page(mfn);
 
     type = page->u.inuse.type_info & PGT_type_mask;
@@ -2475,7 +2475,7 @@ static int destroy_grant_pte_mapping(
     /* Check that the virtual address supplied is actually mapped to frame. */
     if ( unlikely((l1e_get_intpte(ol1e) >> PAGE_SHIFT) != frame) )
     {
-        MEM_LOG("PTE entry %lx for address %lx doesn't match frame %lx",
+        MEM_LOG("PTE entry %lx for address %"PRIx64" doesn't match frame %lx",
                 (unsigned long)l1e_get_intpte(ol1e), addr, frame);
         put_page_type(page);
         rc = GNTST_general_error;
@@ -2575,7 +2575,7 @@ static int destroy_grant_va_mapping(
 }
 
 int create_grant_host_mapping(
-    unsigned long addr, unsigned long frame, unsigned int flags)
+    uint64_t addr, unsigned long frame, unsigned int flags)
 {
     l1_pgentry_t pte = l1e_from_pfn(frame, GRANT_PTE_FLAGS);
 
@@ -2590,7 +2590,7 @@ int create_grant_host_mapping(
 }
 
 int destroy_grant_host_mapping(
-    unsigned long addr, unsigned long frame, unsigned int flags)
+    uint64_t addr, unsigned long frame, unsigned int flags)
 {
     if ( flags & GNTMAP_contains_pte )
         return destroy_grant_pte_mapping(addr, frame, current->domain);

diff --git a/xen/include/asm-x86/grant_table.h b/xen/include/asm-x86/grant_table.h
index 6fa67ff8839b25ccdd0a40fdb8e439d8854e8a64..9941a5c6f8038980afceffa8b2f87c01ce4683f8 100644 (file)
--- a/xen/include/asm-x86/grant_table.h
+++ b/xen/include/asm-x86/grant_table.h
@@ -14,9 +14,9 @@
  * must hold a reference to the page.
  */
 int create_grant_host_mapping(
-    unsigned long addr, unsigned long frame, unsigned int flags);
+    uint64_t addr, unsigned long frame, unsigned int flags);
 int destroy_grant_host_mapping(
-    unsigned long addr, unsigned long frame, unsigned int flags);
+    uint64_t addr, unsigned long frame, unsigned int flags);
 
 #define gnttab_create_shared_page(d, t, i)                               \
     do {                                                                 \