xnu-7195.50.7.100.1.tar.gz

[apple/xnu.git] / osfmk / i386 / phys.c

diff --git a/osfmk/i386/phys.c b/osfmk/i386/phys.c
index 3cdae0971cc19899b078358a46ebac36698a0b3b..130c8aec357f3565be6a727162121c57310d762c 100644 (file)
--- a/osfmk/i386/phys.c
+++ b/osfmk/i386/phys.c
@@ -209,14 +209,6 @@ ml_copy_phys(addr64_t src64, addr64_t dst64, vm_size_t bytes)
        int err = 0;
 
        mp_disable_preemption();
-#if NCOPY_WINDOWS > 0
-       mapwindow_t *src_map, *dst_map;
-       /* We rely on MTRRs here */
-       src_map = pmap_get_mapwindow((pt_entry_t)(INTEL_PTE_VALID | ((pmap_paddr_t)src64 & PG_FRAME) | INTEL_PTE_REF));
-       dst_map = pmap_get_mapwindow((pt_entry_t)(INTEL_PTE_VALID | INTEL_PTE_RW | ((pmap_paddr_t)dst64 & PG_FRAME) | INTEL_PTE_REF | INTEL_PTE_MOD));
-       src = (void *) ((uintptr_t)src_map->prv_CADDR | ((uint32_t)src64 & INTEL_OFFMASK));
-       dst = (void *) ((uintptr_t)dst_map->prv_CADDR | ((uint32_t)dst64 & INTEL_OFFMASK));
-#elif defined(__x86_64__)
        addr64_t debug_pa = 0;
 
        /* If either destination or source are outside the
@@ -252,7 +244,6 @@ ml_copy_phys(addr64_t src64, addr64_t dst64, vm_size_t bytes)
                kprintf("Remapping debugger physical window at %p to 0x%llx\n", (void *)debugger_window_kva, debug_pa);
 #endif
        }
-#endif
        /* ensure we stay within a page */
        if (((((uint32_t)src64 & (I386_PGBYTES - 1)) + bytes) > I386_PGBYTES) || ((((uint32_t)dst64 & (I386_PGBYTES - 1)) + bytes) > I386_PGBYTES)) {
                panic("ml_copy_phys spans pages, src: 0x%llx, dst: 0x%llx", src64, dst64);
@@ -280,10 +271,6 @@ ml_copy_phys(addr64_t src64, addr64_t dst64, vm_size_t bytes)
                break;
        }
 
-#if NCOPY_WINDOWS > 0
-       pmap_put_mapwindow(src_map);
-       pmap_put_mapwindow(dst_map);
-#endif
        mp_enable_preemption();
 
        return err;