[Minios-devel] [PATCH v3 41/43] arm64: add mapping for GNT table

[Huang Shijie <shijie.huang@xxxxxxx>]

Implement the map_frames(), and use it for the GNT table mapping.

Signed-off-by: Huang Shijie <shijie.huang@xxxxxxx>
---
 arch/arm/mm.c         | 7 ++++++-
 include/arm/arch_mm.h | 3 +--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mm.c b/arch/arm/mm.c
index eb5904f..fb9583b 100644
--- a/arch/arm/mm.c
+++ b/arch/arm/mm.c
@@ -352,6 +352,11 @@ void *map_frames_ex(const unsigned long *f, unsigned long 
n, unsigned long strid
     return (void *)addr;
 }
 
+void *map_frames(unsigned long *frames, unsigned long pfn_num)
+{
+    return map_frames_ex(frames, pfn_num, 1, 0, 1, DOMID_SELF, NULL, 
MEM_DEF_ATTR);
+}
+
 static lpae_t *get_ptep(unsigned long vaddr)
 {
     lpae_t *pgd, *pud, *pmd, *pte;
@@ -527,5 +532,5 @@ grant_entry_v1_t *arch_init_gnttab(int nr_grant_frames)
         BUG();
     }
 
-    return to_virt(gnttab_table);
+    return map_frames(frames, nr_grant_frames);
 }
diff --git a/include/arm/arch_mm.h b/include/arm/arch_mm.h
index 150259a..413b167 100644
--- a/include/arm/arch_mm.h
+++ b/include/arm/arch_mm.h
@@ -57,8 +57,7 @@ extern paddr_t physical_address_offset;
 #define virtual_to_mfn(_virt)     virt_to_mfn(_virt)
 
 void arch_mm_preinit(void *dtb_pointer);
-// FIXME
-#define map_frames(f, n) (NULL)
+void *map_frames(unsigned long *frames, unsigned long pfn_num);
 
 void *ioremap(paddr_t addr, unsigned long size);
 
-- 
2.7.4


_______________________________________________
Minios-devel mailing list
Minios-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/minios-devel