I apologize for the formatting Tom ---------------------------------------------- ...................................... Physical memory layout. . availmem.....................+----------------+ .......................................|............................................| .......................................|.......... page pool .............| .......................................|............................................| .......................................|-----------------| .......................................|.......... Page Table ..........| .......................................| (aligned to its size) | PAGETABLE............. |----------------| .......................................|............................................| .......................................|.......... page pool .............| .......................................|............................................| .......................................|-----------------| .......................................|............................................| .......................................|......... kadb, unix, etc.....| .......................................|............................................| .......................................|-----------------| .......................................|........Ramdisk (temp).......| .(8-16 M) 0x00100000 ...............|----------------| .......................................|......boot code/data/etc.| .(~1M) 0x00009000 ...............|----------------| .......................................|......boot stack................ | .(8 K) 0x00007000...............|----------------| .......................................|......msgbuf..................... | .(8 K) 0x00005000.............. |----------------| .......................................|......rtt, fast syscall .......| .(4 K) 0x00004000.............. |----------------| .......................................|..........Level-0................| .(16 K) ......................................|....Interrupt handlers.... | 0x00000000
........................ Virtual memory layout. . ........................... /----------\ .......................... |.......INVALID....| 0xFFF00000....|----------| ........................... |......debugger...| .(1 M) 0xFFE00000....|----------|- DEBUGSTART ........................... |...........................| ........................... |.....Ramdisk.......| .(15 M) ........................... |(debug only)..| ........................... |...........................| 0xFEF00000 -|----------|- RAMDISK ........................... |...........................| ........................... |.....unused ...... | ........................... |...........................| ........................... |----------| ........................... |exec args area| NCARGS (1 M) 0xF3800000 -|----------|- ARGSBASE ........................... |...........................| ...........................| ...PCI/ISA I/O . | .(8 M) ...........................|...(non cacheable) | 0xF3000000 -|----------|- PCIISA_VBASE ........................... | ...segkmap .... | SEGMAPSIZE (16 M) 0xF2000000 -|-----------| ...........................|............................. | ...........................: Page Table : MAXPTSIZE (32 M) ........................... | (may be mapped by BAT)| 0xF0000000 -|-----------|- PAGE_TABLE ........................... |...........................| ........................... | unused | ........................... |...........................| 0xEF000000 -|-----------|- SYSLIMIT ........................... |...........................| ........................... | Sysmap | SYSPTSIZE (128 M) ........................... |...........................| ........................... |...........................| 0xE7003000 -|------------| ........................... | msgbuf | (8 K) 0xE7001000 -|------------|- V_MSGBUF_ADDR ........................... | not used (4k) | 0xE7000000 |-----------|- SYSBASE ........................... |...........................| ........................... | unused | ........................... |...........................| ........................... |-----------|- eecontig ........................... | segkp | ........................... |-------------|- econtig ........................... | vm structures | ........................... | (page structures | ........................... | page hash | ........................... | memseg structures) | ........................... |--------------|- e_data ........................... | kernel data | ........................... | (data sections for | ........................... | genunix, unix, rtld)| 0xE2000000 -|------------|- s_data = (KERNELBASE + 32MB) ........................... | text sections of | ........................... | kernel dynamic | ........................... | modules (managed by | ........................... | lokmem_alloc()) | ........................... |-------------|- e_text ............................ | kernel text | ........................... | (text sections for | ........................... | genunix, unix, rtld) | 0xE0001000 -|--------------|- s_text ...........................| user copy red zone | (4K) ...........................| (invalid) | 0xE0000000 -|------------|- KERNELBASE ........................... | user stack | ........................... |...........................| ........................... | dynamic segments | ........................... |...........................| ........................... | user data | ...........................|-----------|- (user data aligned for 64K) ........................... | user text | 0x02000000 |-----------| ........................... |...........................| ........................... | dynamic segments | ........................... |...........................| 0x00010000 -|-----------| ........................... | not used | 0x00000000 _|____________| This message posted from opensolaris.org
