2 * Acess2 x86_64 Architecture Code
4 * This file is published under the terms of the Acess Licence.
5 * See the file COPYING for more details
7 * vmem.h - Virtual Memory Functions & Definitions
14 // === Memory Location Definitions ===
16 * Userland - Lower Half
17 * Kernel land - Upper Half
19 * START ADDRESS END ADDRESS BITS SIZE NAME
20 * 0x00000000 00000000 - 0x00007FFF FFFFFFFF 47 128 TiB User Space
21 * 0x00008000 00000000 - 0xFFFF7FFF FFFFFFFF --- SIGN EXTENSION NULL ZONE
22 * 0xFFFF8000 00000000 - 0xFFFFFFFF FFFFFFFF 47 128 TiB Kernel Range
23 * 8000 00000000 - 8000 7FFFFFFF 31 2 GiB Identity Map
24 * 8000 80000000 - 9000 00000000 ~44 16 TiB Kernel Heap
25 * 9000 00000000 - 9800 00000000 43 8 TiB Module Space
26 * 9800 00000000 - 9A00 00000000 41 2 TiB Kernel VFS
27 * A000 00000000 - B000 00000000 44 16 TiB Kernel Stacks
28 * C000 00000000 - D000 00000000 44 16 TiB Hardware Mappings
29 * D000 00000000 - D080 00000000 39 512 GiB Per-Process Data
30 * D080 00000000 - D100 00000000 39 512 GiB Kernel Supplied User Code
31 * E000 00000000 - E400 00000000 42 4 TiB Physical Page Reference Counts (2**40 = 2**52 bytes)
32 * E400 00000000 - E400 80000000 31 2 GiB Physical Page Super Bitmap (64 pages per bit)
33 * FD00 00000000 - FD80 00000000 39 512 GiB Local APIC
34 * FE00 00000000 - FE80 00000000 39 512 GiB Fractal Mapping (PML4 510)
35 * FE80 00000000 - FF00 00000000 39 512 GiB Temp Fractal Mapping
38 #define MM_USER_MIN 0x00000000##00010000
39 #define USER_LIB_MAX 0x00008000##00000000
40 #define USER_STACK_SZ 0x00000000##00020000 // 64 KiB
41 #define USER_STACK_TOP 0x00008FFF##FFFFF000
42 #define MM_USER_MAX 0x00008FFF##FFFFF000
43 //#define KERNEL_BASE 0xFFF8000##00000000
44 #define MM_KHEAP_BASE (KERNEL_BASE|(0x8000##80000000))
45 #define MM_KHEAP_MAX (KERNEL_BASE|(0x9000##00000000))
46 #define MM_MODULE_MIN (KERNEL_BASE|(0x9000##00000000))
47 #define MM_MODULE_MAX (KERNEL_BASE|(0x9800##00000000))
48 #define MM_KERNEL_VFS (KERNEL_BASE|(0x9800##00000000))
49 #define MM_KSTACK_BASE (KERNEL_BASE|(0xA000##00000000))
50 #define MM_KSTACK_TOP (KERNEL_BASE|(0xB000##00000000))
52 #define MM_HWMAP_BASE (KERNEL_BASE|(0xC000##00000000))
53 #define MM_HWMAP_TOP (KERNEL_BASE|(0xD000##00000000))
54 #define MM_PPD_BASE (KERNEL_BASE|(0xD000##00000000))
55 #define MM_PPD_CFG MM_PPD_BASE
56 #define MM_PPD_VFS (KERNEL_BASE|(0xD008##00000000))
57 #define MM_USER_CODE (KERNEL_BASE|(0xD080##00000000))
58 #define MM_PAGE_COUNTS (KERNEL_BASE|(0xE000##00000000))
59 #define MM_PAGE_SUPBMP (KERNEL_BASE|(0xE400##00000000))
61 #define MM_LOCALAPIC (KERNEL_BASE|(0xFD00##00000000))
62 #define MM_FRACTAL_BASE (KERNEL_BASE|(0xFE00##00000000))
63 #define MM_TMPFRAC_BASE (KERNEL_BASE|(0xFE80##00000000))
67 void MM_FinishVirtualInit(void);
68 tVAddr MM_NewKStack(void);
69 tVAddr MM_Clone(void);
70 tVAddr MM_NewWorkerStack(void);