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| author | Fernando Sahmkow <fsahmkow27@gmail.com> | 2021-11-11 21:24:40 +0100 |
|---|---|---|
| committer | Fernando Sahmkow <fsahmkow27@gmail.com> | 2022-10-06 21:00:51 +0200 |
| commit | cbaf3fb433a351f7d9509f17f88d4896ba66afd1 (patch) | |
| tree | 08790ccd701bc894e49d4f13f64703caeb8129db /src/common/multi_level_page_table.inc | |
| parent | Common: implement MultiLevelPageTable. (diff) | |
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Diffstat (limited to 'src/common/multi_level_page_table.inc')
| -rw-r--r-- | src/common/multi_level_page_table.inc | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/common/multi_level_page_table.inc b/src/common/multi_level_page_table.inc index a75e61f9d..7fbcb908a 100644 --- a/src/common/multi_level_page_table.inc +++ b/src/common/multi_level_page_table.inc @@ -20,7 +20,7 @@ MultiLevelPageTable<BaseAddr>::MultiLevelPageTable(std::size_t address_space_bit : address_space_bits{address_space_bits_}, first_level_bits{first_level_bits_}, page_bits{page_bits_} { first_level_shift = address_space_bits - first_level_bits; - first_level_chunk_size = 1ULL << (first_level_shift - page_bits); + first_level_chunk_size = (1ULL << (first_level_shift - page_bits)) * sizeof(BaseAddr); alloc_size = (1ULL << (address_space_bits - page_bits)) * sizeof(BaseAddr); std::size_t first_level_size = 1ULL << first_level_bits; first_level_map.resize(first_level_size, nullptr); @@ -53,8 +53,7 @@ MultiLevelPageTable<BaseAddr>::~MultiLevelPageTable() noexcept { template <typename BaseAddr> void MultiLevelPageTable<BaseAddr>::ReserveRange(u64 start, std::size_t size) { const u64 new_start = start >> first_level_shift; - const u64 new_end = - (start + size + (first_level_chunk_size << page_bits) - 1) >> first_level_shift; + const u64 new_end = (start + size) >> first_level_shift; for (u64 i = new_start; i <= new_end; i++) { if (!first_level_map[i]) { AllocateLevel(i); @@ -64,7 +63,7 @@ void MultiLevelPageTable<BaseAddr>::ReserveRange(u64 start, std::size_t size) { template <typename BaseAddr> void MultiLevelPageTable<BaseAddr>::AllocateLevel(u64 level) { - void* ptr = reinterpret_cast<char*>(base_ptr) + level * first_level_chunk_size; + void* ptr = reinterpret_cast<char *>(base_ptr) + level * first_level_chunk_size; #ifdef _WIN32 void* base{VirtualAlloc(ptr, first_level_chunk_size, MEM_COMMIT, PAGE_READWRITE)}; #else |