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author | Fernando Sahmkow <fsahmkow27@gmail.com> | 2020-03-13 21:33:47 +0100 |
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committer | FernandoS27 <fsahmkow27@gmail.com> | 2020-03-14 14:43:57 +0100 |
commit | 27cbb75e7c2818c073bd65a000d7ff7f28d391d4 (patch) | |
tree | 1f8ff16d5202fde0e15f8a8f7c5d50045efb9341 /src/common/page_table.h | |
parent | Merge pull request #3491 from ReinUsesLisp/polygon-modes (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/common/page_table.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/common/page_table.h b/src/common/page_table.h index 8b8ff0bb8..dbc272ab7 100644 --- a/src/common/page_table.h +++ b/src/common/page_table.h @@ -76,9 +76,20 @@ struct PageTable { */ std::vector<PageType> attributes; - std::vector<u64> backing_addr; - const std::size_t page_size_in_bits{}; }; +/** + * A more advanced Page Table with the ability to save a backing address when using it + * depends on another MMU. + */ +struct BackingPageTable : PageTable { + explicit BackingPageTable(std::size_t page_size_in_bits); + ~BackingPageTable(); + + void Resize(std::size_t address_space_width_in_bits); + + std::vector<u64> backing_addr; +}; + } // namespace Common |