From 7420a717e6b69d223ea021ae3515538b325a54a4 Mon Sep 17 00:00:00 2001 From: bunnei Date: Sun, 27 Dec 2020 21:08:31 -0800 Subject: core: hle: kernel: Add some useful functions for checking kernel addresses. --- src/core/hle/kernel/memory/memory_layout.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'src/core/hle/kernel/memory') diff --git a/src/core/hle/kernel/memory/memory_layout.h b/src/core/hle/kernel/memory/memory_layout.h index 9b3d6267a..c7c0b2f49 100644 --- a/src/core/hle/kernel/memory/memory_layout.h +++ b/src/core/hle/kernel/memory/memory_layout.h @@ -5,9 +5,28 @@ #pragma once #include "common/common_types.h" +#include "core/device_memory.h" namespace Kernel::Memory { +constexpr std::size_t KernelAslrAlignment = 2 * 1024 * 1024; +constexpr std::size_t KernelVirtualAddressSpaceWidth = 1ULL << 39; +constexpr std::size_t KernelPhysicalAddressSpaceWidth = 1ULL << 48; +constexpr std::size_t KernelVirtualAddressSpaceBase = 0ULL - KernelVirtualAddressSpaceWidth; +constexpr std::size_t KernelVirtualAddressSpaceEnd = + KernelVirtualAddressSpaceBase + (KernelVirtualAddressSpaceWidth - KernelAslrAlignment); +constexpr std::size_t KernelVirtualAddressSpaceLast = KernelVirtualAddressSpaceEnd - 1; +constexpr std::size_t KernelVirtualAddressSpaceSize = + KernelVirtualAddressSpaceEnd - KernelVirtualAddressSpaceBase; + +constexpr bool IsKernelAddressKey(VAddr key) { + return KernelVirtualAddressSpaceBase <= key && key <= KernelVirtualAddressSpaceLast; +} + +constexpr bool IsKernelAddress(VAddr address) { + return KernelVirtualAddressSpaceBase <= address && address < KernelVirtualAddressSpaceEnd; +} + class MemoryRegion final { friend class MemoryLayout; -- cgit v1.2.3