xnu-4570.71.2.tar.gz

[apple/xnu.git] / osfmk / i386 / pmap_internal.h

diff --git a/osfmk/i386/pmap_internal.h b/osfmk/i386/pmap_internal.h
index 3523d8a14716d0a630d534c86a96a5c3eb6cde71..4ddabaa2049b5df0a7eee6adf2c7843357a7d100 100644 (file)
--- a/osfmk/i386/pmap_internal.h
+++ b/osfmk/i386/pmap_internal.h
@@ -407,7 +407,7 @@ extern boolean_t    pmap_disable_kstack_nx;
 #define PMAP_EXPAND_OPTIONS_NONE (0x0)
 #define PMAP_EXPAND_OPTIONS_NOWAIT (PMAP_OPTIONS_NOWAIT)
 #define PMAP_EXPAND_OPTIONS_NOENTER (PMAP_OPTIONS_NOENTER)
-
+#define PMAP_EXPAND_OPTIONS_ALIASMAP (0x40000000U)
 /*
  *     Amount of virtual memory mapped by one
  *     page-directory entry.
@@ -473,11 +473,14 @@ extern ppnum_t    highest_hi;
 #define MAX_PREEMPTION_LATENCY_NS 20000
 extern uint64_t max_preemption_latency_tsc;
 
-/* #define DEBUGINTERRUPTS 1  uncomment to ensure pmap callers have interrupts enabled */
-#ifdef DEBUGINTERRUPTS
+#if DEBUG
+#define PMAP_INTR_DEBUG (1)
+#endif
+
+#if PMAP_INTR_DEBUG
 #define pmap_intr_assert() {                                                   \
        if (processor_avail_count > 1 && !ml_get_interrupts_enabled())          \
-               panic("pmap interrupt assert %s, %d",__FILE__, __LINE__);       \
+               panic("pmap interrupt assert %d %s, %d", processor_avail_count, __FILE__, __LINE__); \
 }
 #else
 #define pmap_intr_assert()
@@ -495,7 +498,6 @@ pvhashidx(pmap_t pmap, vm_map_offset_t va)
            return hashidx;
 }
 
-
 /*
  * unlinks the pv_hashed_entry_t pvh from the singly linked hash chain.
  * properly deals with the anchor.
@@ -964,11 +966,6 @@ PMAP_ZINFO_SFREE(pmap_t pmap, vm_size_t bytes)
 extern boolean_t       pmap_initialized;/* Has pmap_init completed? */
 #define valid_page(x) (pmap_initialized && pmap_valid_page(x))
 
-// XXX
-#define HIGH_MEM_BASE  ((uint32_t)( -NBPDE) )  /* shared gdt etc seg addr */ /* XXX64 ?? */
-// XXX
-
-
 int            phys_attribute_test(
                        ppnum_t         phys,
                        int             bits);
@@ -1033,7 +1030,6 @@ static inline void pmap_update_pte(pt_entry_t *mptep, uint64_t pclear_bits, uint
        }       while (!pmap_cmpx_pte(mptep, opte, npte));
 }
 
-#if    defined(__x86_64__)
 /*
  * The single pml4 page per pmap is allocated at pmap create time and exists
  * for the duration of the pmap. we allocate this page in kernel vm.
@@ -1055,6 +1051,21 @@ pmap64_pml4(pmap_t pmap, vm_map_offset_t vaddr)
 #endif
 }
 
+static inline pml4_entry_t *
+pmap64_user_pml4(pmap_t pmap, vm_map_offset_t vaddr)
+{
+       if (__improbable((vaddr > 0x00007FFFFFFFFFFFULL) &&
+               (vaddr < 0xFFFF800000000000ULL))) {
+               return (NULL);
+       }
+
+#if    DEBUG
+       return PHYSMAP_PTOV(&((pml4_entry_t *)pmap->pm_ucr3)[(vaddr >> PML4SHIFT) & (NPML4PG-1)]);
+#else
+       return &pmap->pm_upml4[(vaddr >> PML4SHIFT) & (NPML4PG-1)];
+#endif
+}
+
 /*
  * Returns address of requested PDPT entry in the physmap.
  */
@@ -1134,7 +1145,13 @@ pmap_pte(pmap_t pmap, vm_map_offset_t vaddr)
        }
        return (NULL);
 }
-#endif
+extern void    pmap_alias(
+                               vm_offset_t     ava,
+                               vm_map_offset_t start,
+                               vm_map_offset_t end,
+                               vm_prot_t       prot,
+                               unsigned int options);
+
 #if    DEBUG
 #define DPRINTF(x...)  kprintf(x)
 #else