xnu-4903.221.2.tar.gz

[apple/xnu.git] / osfmk / mach / arm / vm_param.h

diff --git a/osfmk/mach/arm/vm_param.h b/osfmk/mach/arm/vm_param.h
index 915e237e6a1b99379cf09e57d3e493544594aab1..c0ed53a8e574e189033de28a76a434858442daea 100644 (file)
--- a/osfmk/mach/arm/vm_param.h
+++ b/osfmk/mach/arm/vm_param.h
@@ -166,6 +166,7 @@ extern unsigned             PAGE_SHIFT_CONST;
 #ifdef KERNEL
 
 #if defined (__arm__)
+#define VM_KERNEL_POINTER_SIGNIFICANT_BITS  32
 #define VM_MIN_KERNEL_ADDRESS  ((vm_address_t) 0x80000000)
 #define VM_MAX_KERNEL_ADDRESS  ((vm_address_t) 0xFFFEFFFF)
 #define VM_HIGH_KERNEL_WINDOW  ((vm_address_t) 0xFFFE0000)
@@ -174,6 +175,7 @@ extern unsigned             PAGE_SHIFT_CONST;
  * The minimum and maximum kernel address; some configurations may
  * constrain the address space further.
  */
+#define VM_KERNEL_POINTER_SIGNIFICANT_BITS  37
 #define VM_MIN_KERNEL_ADDRESS  ((vm_address_t) 0xffffffe000000000ULL)
 #define VM_MAX_KERNEL_ADDRESS  ((vm_address_t) 0xfffffff3ffffffffULL)
 #else
@@ -183,8 +185,11 @@ extern unsigned            PAGE_SHIFT_CONST;
 #define VM_MIN_KERNEL_AND_KEXT_ADDRESS \
                                VM_MIN_KERNEL_ADDRESS
 
-#define VM_KERNEL_ADDRESS(va)  ((((vm_address_t)(va))>=VM_MIN_KERNEL_ADDRESS) && \
-                               (((vm_address_t)(va))<=VM_MAX_KERNEL_ADDRESS))
+#define VM_KERNEL_STRIP_PTR(_v) (_v)
+
+#define VM_KERNEL_ADDRESS(_va) \
+       ((((vm_address_t)VM_KERNEL_STRIP_PTR(_va)) >= VM_MIN_KERNEL_ADDRESS) && \
+        (((vm_address_t)VM_KERNEL_STRIP_PTR(_va)) <= VM_MAX_KERNEL_ADDRESS))
 
 #ifdef  MACH_KERNEL_PRIVATE
 /*
@@ -193,22 +198,41 @@ extern unsigned           PAGE_SHIFT_CONST;
 extern unsigned long           gVirtBase, gPhysBase, gPhysSize;
 
 #define isphysmem(a)           (((vm_address_t)(a) - gPhysBase) < gPhysSize)
-#define phystokv(a)            ((vm_address_t)(a) - gPhysBase + gVirtBase)
 
 #if KASAN
 /* Increase the stack sizes to account for the redzones that get added to every
  * stack object. */
 # define KERNEL_STACK_SIZE     (4*4*4096)
-# define INTSTACK_SIZE         (4*4*4096)
 #else
 # define KERNEL_STACK_SIZE     (4*4096)
-# define INTSTACK_SIZE         (4*4096)
+#endif
+
+#define INTSTACK_SIZE          (4*4096)
+
+#ifdef __arm64__
+#define EXCEPSTACK_SIZE                (4*4096)
+#else
+#define FIQSTACK_SIZE          (4096)
 #endif
 
 #if defined (__arm__)
 #define HIGH_EXC_VECTORS       ((vm_address_t) 0xFFFF0000)
 #endif
 
+/*
+ * TODO: We're hardcoding the expected virtual TEXT base here;
+ * that gives us an ugly dependency on a linker argument in
+ * the make files.  Clean this up, so we don't hardcode it
+ * twice; this is nothing but trouble.
+ */
+#if defined (__arm__)
+#define VM_KERNEL_LINK_ADDRESS  ((vm_address_t) 0x80000000)
+#elif defined (__arm64__)
+#define VM_KERNEL_LINK_ADDRESS  ((vm_address_t) 0xFFFFFFF007004000)
+#else
+#error architecture not supported
+#endif
+
 #endif /* MACH_KERNEL_PRIVATE */
 #endif /* KERNEL */