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device_memory: Use smaller virtual reservation size for compatibility with 39-bit paging

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Liam
2023-01-01 12:12:01 -05:00
committed by bunnei
parent 2972a3ccc7
commit 7cdeaa90af
2 changed files with 12 additions and 1 deletions
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5
src/core/hle/kernel/k_address_space_info.cpp
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@@ -25,7 +25,12 @@ constexpr std::array<KAddressSpaceInfo, 13> AddressSpaceInfos{{
{ .bit_width = 36, .address = 2_GiB , .size = 64_GiB - 2_GiB , .type = KAddressSpaceInfo::Type::MapLarge, },
{ .bit_width = 36, .address = Size_Invalid, .size = 8_GiB , .type = KAddressSpaceInfo::Type::Heap, },
{ .bit_width = 36, .address = Size_Invalid, .size = 6_GiB , .type = KAddressSpaceInfo::Type::Alias, },
#ifdef ANDROID
// With Android, we use a 38-bit address space due to memory limitations. This should (safely) truncate ASLR region.
{ .bit_width = 39, .address = 128_MiB , .size = 256_GiB - 128_MiB, .type = KAddressSpaceInfo::Type::Map39Bit, },
#else
{ .bit_width = 39, .address = 128_MiB , .size = 512_GiB - 128_MiB, .type = KAddressSpaceInfo::Type::Map39Bit, },
#endif
{ .bit_width = 39, .address = Size_Invalid, .size = 64_GiB , .type = KAddressSpaceInfo::Type::MapSmall },
{ .bit_width = 39, .address = Size_Invalid, .size = 8_GiB , .type = KAddressSpaceInfo::Type::Heap, },
{ .bit_width = 39, .address = Size_Invalid, .size = 64_GiB , .type = KAddressSpaceInfo::Type::Alias, },