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Ensure proper allocation granularity

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momo5502
2025-02-09 11:01:46 +01:00
parent 7d8ca0a81d
commit 4e38ddc323
1 changed files with 3 additions and 1 deletions
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4
src/emulator/memory_manager.cpp
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@@ -10,6 +10,7 @@
namespace
{
constexpr auto ALLOCATION_GRANULARITY = 0x0000000000010000ULL;
constexpr auto MIN_ALLOCATION_ADDRESS = 0x0000000000010000ULL;
constexpr auto MAX_ALLOCATION_ADDRESS = 0x00007ffffffeffffULL;
@@ -446,6 +447,7 @@ void memory_manager::unmap_all_memory()
uint64_t memory_manager::find_free_allocation_base(const size_t size, const uint64_t start) const
{
uint64_t start_address = std::max(MIN_ALLOCATION_ADDRESS, start ? start : 0x100000000ULL);
start_address = align_up(start_address, ALLOCATION_GRANULARITY);
for (const auto& region : this->reserved_regions_)
{
@@ -460,7 +462,7 @@ uint64_t memory_manager::find_free_allocation_base(const size_t size, const uint
return start_address;
}
start_address = page_align_up(region_end);
start_address = align_up(region_end, ALLOCATION_GRANULARITY);
}
if (start_address + size <= MAX_ALLOCATION_ADDRESS)