diff options
Diffstat (limited to 'src/include/kernel/ptmgr.H')
| -rw-r--r-- | src/include/kernel/ptmgr.H | 60 |
1 files changed, 55 insertions, 5 deletions
diff --git a/src/include/kernel/ptmgr.H b/src/include/kernel/ptmgr.H index 9837a2dea..d6e6be151 100644 --- a/src/include/kernel/ptmgr.H +++ b/src/include/kernel/ptmgr.H @@ -5,7 +5,9 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* COPYRIGHT International Business Machines Corp. 2011,2014 */ +/* Contributors Listed Below - COPYRIGHT 2011,2015 */ +/* [+] International Business Machines Corp. */ +/* */ /* */ /* Licensed under the Apache License, Version 2.0 (the "License"); */ /* you may not use this file except in compliance with the License. */ @@ -26,6 +28,7 @@ #include <stdint.h> #include <util/lockfree/stack.H> #include <kernel/vmmmgr.H> +#include <config.h> /** * @class PageTableManager @@ -191,7 +194,52 @@ class PageTableManager */ char* ivTABLE; +#ifdef CONFIG_P9_PAGE_TABLE + /** + * Represents a single entry in the page table + */ + struct PageTableEntry + { + /** + * Dword0 + */ + union { + struct { /**< Dword0 Attributes */ + uint64_t rsv0:12; /**< 0:11 Reserved */ + uint64_t AVA:45; /**< 12:56 Abbrev VA, VA w/o bottom bits */ + uint64_t SW:1; /**< 57 =SW[0] - Reserved */ + uint64_t R2:1; /**< 58 =SW[1] - Shadow R bit */ + uint64_t LRU:2; /**< 59:60 =SW[2:3] Used for LRU algorithm */ + uint64_t L:1; /**< 61 Virtual page size */ + uint64_t H:1; /**< 62 Hash function identifier */ + uint64_t V:1; /**< 63 Entry valid */ + }; + uint64_t dword0; /**< Full Dword0 */ + }; + /** + * Dword1 + */ + union { + struct { /**< Dword1 Attributes */ + uint64_t pp0:1; /**< 0 Page Protection bit 0 */ + uint64_t TS:1; /**< 1 Tag Set bit */ + uint64_t key0_1:2; /**< 2:3 KEY bits 0:1 <unused> */ + uint64_t B:2; /**< 4:5 Segment Size */ + uint64_t rsv1:1; /**< 6 Reserved */ + uint64_t PN:45; /**< 7:51 Abbrev RPN + Large Page Size */ + uint64_t key2_4:3; /**< 52:54 KEY bits 2:4 <unused> */ + uint64_t R:1; /**< 55 Reference bit */ + uint64_t C:1; /**< 56 Change bit */ + uint64_t WIMG:4; /**< 57:60 Storage control bits */ + uint64_t N:1; /**< 61 No-execute page (N==1) */ + uint64_t pp1_2:2; /**< 62:63 Page Protection bits 1:2 */ + }; + uint64_t dword1; /**< Full Dword1 */ + }; + } PACKED; + enum { PTE_AVA_MASK = 0x1FFFFFFFFFFF }; +#else /** * Represents a single entry in the page table */ @@ -203,10 +251,10 @@ class PageTableManager union { struct { /**< Dword0 Attributes */ uint64_t B:2; /**< 0:1 Segment Size */ - uint64_t AVA:55; /**< 2:56 Abbreviated Virtual Address = VA w/o bottom 23 bits */ - uint64_t SW:1; /**< 57 =SW[] - Reserved */ + uint64_t AVA:55; /**< 2:56 Abbrev VA, VA w/o bottom 23 bits */ + uint64_t SW:1; /**< 57 =SW[0] - Reserved */ uint64_t R2:1; /**< 58 =SW[1] - Shadow R bit */ - uint64_t LRU:2; /**< 59:60 =SW[2:3] - Used for LRU algorithm */ + uint64_t LRU:2; /**< 59:60 =SW[2:3] Used for LRU algorithm */ uint64_t L:1; /**< 61 Virtual page size */ uint64_t H:1; /**< 62 Hash function identifier */ uint64_t V:1; /**< 63 Entry valid */ @@ -222,7 +270,7 @@ class PageTableManager uint64_t pp0:1; /**< 0 Page Protection bit 0 */ uint64_t rsv:1; /**< 1 Reserved */ uint64_t key0_1:2; /**< 2:3 KEY bits 0:1 <unused> */ - uint64_t PN:48; /**< 4:52 Abbreviated Real Page Number + Large page size selector */ + uint64_t PN:48; /**< 4:52 Abbrev RPN + Large Page Size */ uint64_t key2_4:3; /**< 53:54 KEY bits 2:4 <unused> */ uint64_t R:1; /**< 55 Reference bit */ uint64_t C:1; /**< 56 Change bit */ @@ -233,6 +281,8 @@ class PageTableManager uint64_t dword1; /**< Full Dword1 */ }; } PACKED; + enum { PTE_AVA_MASK = 0x7FFFFFFFFFFFFF }; +#endif /** * Internal Constants |
