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Diffstat (limited to 'kapi/include/kapi/memory/layout.hpp')
| -rw-r--r-- | kapi/include/kapi/memory/layout.hpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kapi/include/kapi/memory/layout.hpp b/kapi/include/kapi/memory/layout.hpp index 157f41e..26b48d8 100644 --- a/kapi/include/kapi/memory/layout.hpp +++ b/kapi/include/kapi/memory/layout.hpp @@ -37,6 +37,18 @@ namespace kapi::memory //! The linear base address of the loaded kernel image. constexpr auto kernel_base = linear_address{0xffff'ffff'8000'0000uz}; + //! Convert a physical address to a linear address using the higher-half direct map. + constexpr auto hhdm_to_linear(physical_address address) -> linear_address + { + return linear_address{address.raw() + higher_half_direct_map_base.raw()}; + } + + //! Convert a linear address in the higher-half direct map to a physical address. + constexpr auto hhdm_to_physical(linear_address address) -> physical_address + { + return physical_address{address.raw() - higher_half_direct_map_base.raw()}; + } + } // namespace kapi::memory #endif
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