forked from eden-emu/eden
hle: kernel: k_memory_layout: Derive memory regions based on board layout.
This commit is contained in:
bunnei
parent
8d0ba7ee49
commit
343eaecd38
6 changed files with 1032 additions and 55 deletions
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@ -1,4 +1,4 @@
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// Copyright 2014 Citra Emulator Project
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// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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@ -12,6 +12,7 @@
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#include <utility>
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#include "common/assert.h"
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#include "common/common_sizes.h"
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#include "common/logging/log.h"
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#include "common/microprofile.h"
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#include "common/thread.h"
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@ -269,44 +270,310 @@ struct KernelCore::Impl {
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}
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void InitializeMemoryLayout() {
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// Initialize memory layout
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constexpr KMemoryLayout layout{KMemoryLayout::GetDefaultLayout()};
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KMemoryLayout memory_layout;
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// Insert the root region for the virtual memory tree, from which all other regions will
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// derive.
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memory_layout.GetVirtualMemoryRegionTree().InsertDirectly(
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KernelVirtualAddressSpaceBase,
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KernelVirtualAddressSpaceBase + KernelVirtualAddressSpaceSize - 1);
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// Insert the root region for the physical memory tree, from which all other regions will
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// derive.
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memory_layout.GetPhysicalMemoryRegionTree().InsertDirectly(
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KernelPhysicalAddressSpaceBase,
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KernelPhysicalAddressSpaceBase + KernelPhysicalAddressSpaceSize - 1);
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// Save start and end for ease of use.
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const VAddr code_start_virt_addr = KernelVirtualAddressCodeBase;
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const VAddr code_end_virt_addr = KernelVirtualAddressCodeEnd;
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// Setup the containing kernel region.
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constexpr size_t KernelRegionSize = Size_1_GB;
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constexpr size_t KernelRegionAlign = Size_1_GB;
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constexpr VAddr kernel_region_start =
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Common::AlignDown(code_start_virt_addr, KernelRegionAlign);
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size_t kernel_region_size = KernelRegionSize;
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if (!(kernel_region_start + KernelRegionSize - 1 <= KernelVirtualAddressSpaceLast)) {
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kernel_region_size = KernelVirtualAddressSpaceEnd - kernel_region_start;
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}
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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kernel_region_start, kernel_region_size, KMemoryRegionType_Kernel));
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// Setup the code region.
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constexpr size_t CodeRegionAlign = PageSize;
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constexpr VAddr code_region_start =
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Common::AlignDown(code_start_virt_addr, CodeRegionAlign);
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constexpr VAddr code_region_end = Common::AlignUp(code_end_virt_addr, CodeRegionAlign);
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constexpr size_t code_region_size = code_region_end - code_region_start;
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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code_region_start, code_region_size, KMemoryRegionType_KernelCode));
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// Setup board-specific device physical regions.
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Init::SetupDevicePhysicalMemoryRegions(memory_layout);
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// Determine the amount of space needed for the misc region.
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size_t misc_region_needed_size;
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{
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// Each core has a one page stack for all three stack types (Main, Idle, Exception).
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misc_region_needed_size = Core::Hardware::NUM_CPU_CORES * (3 * (PageSize + PageSize));
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// Account for each auto-map device.
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for (const auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
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if (region.HasTypeAttribute(KMemoryRegionAttr_ShouldKernelMap)) {
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// Check that the region is valid.
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ASSERT(region.GetEndAddress() != 0);
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// Account for the region.
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misc_region_needed_size +=
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PageSize + (Common::AlignUp(region.GetLastAddress(), PageSize) -
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Common::AlignDown(region.GetAddress(), PageSize));
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}
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}
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// Multiply the needed size by three, to account for the need for guard space.
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misc_region_needed_size *= 3;
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}
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// Decide on the actual size for the misc region.
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constexpr size_t MiscRegionAlign = KernelAslrAlignment;
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constexpr size_t MiscRegionMinimumSize = Size_32_MB;
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const size_t misc_region_size = Common::AlignUp(
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std::max(misc_region_needed_size, MiscRegionMinimumSize), MiscRegionAlign);
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ASSERT(misc_region_size > 0);
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// Setup the misc region.
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const VAddr misc_region_start =
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memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
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misc_region_size, MiscRegionAlign, KMemoryRegionType_Kernel);
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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misc_region_start, misc_region_size, KMemoryRegionType_KernelMisc));
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// Setup the stack region.
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constexpr size_t StackRegionSize = Size_14_MB;
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constexpr size_t StackRegionAlign = KernelAslrAlignment;
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const VAddr stack_region_start =
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memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
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StackRegionSize, StackRegionAlign, KMemoryRegionType_Kernel);
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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stack_region_start, StackRegionSize, KMemoryRegionType_KernelStack));
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// Determine the size of the resource region.
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const size_t resource_region_size = memory_layout.GetResourceRegionSizeForInit();
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// Determine the size of the slab region.
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const size_t slab_region_size = Common::AlignUp(KernelSlabHeapSize, PageSize);
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ASSERT(slab_region_size <= resource_region_size);
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// Setup the slab region.
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const PAddr code_start_phys_addr = KernelPhysicalAddressCodeBase;
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const PAddr code_end_phys_addr = code_start_phys_addr + code_region_size;
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const PAddr slab_start_phys_addr = code_end_phys_addr;
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const PAddr slab_end_phys_addr = slab_start_phys_addr + slab_region_size;
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constexpr size_t SlabRegionAlign = KernelAslrAlignment;
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const size_t slab_region_needed_size =
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Common::AlignUp(code_end_phys_addr + slab_region_size, SlabRegionAlign) -
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Common::AlignDown(code_end_phys_addr, SlabRegionAlign);
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const VAddr slab_region_start =
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memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
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slab_region_needed_size, SlabRegionAlign, KMemoryRegionType_Kernel) +
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(code_end_phys_addr % SlabRegionAlign);
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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slab_region_start, slab_region_size, KMemoryRegionType_KernelSlab));
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// Setup the temp region.
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constexpr size_t TempRegionSize = Size_128_MB;
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constexpr size_t TempRegionAlign = KernelAslrAlignment;
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const VAddr temp_region_start =
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memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
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TempRegionSize, TempRegionAlign, KMemoryRegionType_Kernel);
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(temp_region_start, TempRegionSize,
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KMemoryRegionType_KernelTemp));
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// Automatically map in devices that have auto-map attributes.
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for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
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// We only care about kernel regions.
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if (!region.IsDerivedFrom(KMemoryRegionType_Kernel)) {
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continue;
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}
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// Check whether we should map the region.
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if (!region.HasTypeAttribute(KMemoryRegionAttr_ShouldKernelMap)) {
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continue;
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}
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// If this region has already been mapped, no need to consider it.
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if (region.HasTypeAttribute(KMemoryRegionAttr_DidKernelMap)) {
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continue;
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}
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// Check that the region is valid.
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ASSERT(region.GetEndAddress() != 0);
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// Set the attribute to note we've mapped this region.
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region.SetTypeAttribute(KMemoryRegionAttr_DidKernelMap);
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// Create a virtual pair region and insert it into the tree.
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const PAddr map_phys_addr = Common::AlignDown(region.GetAddress(), PageSize);
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const size_t map_size =
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Common::AlignUp(region.GetEndAddress(), PageSize) - map_phys_addr;
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const VAddr map_virt_addr =
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memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegionWithGuard(
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map_size, PageSize, KMemoryRegionType_KernelMisc, PageSize);
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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map_virt_addr, map_size, KMemoryRegionType_KernelMiscMappedDevice));
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region.SetPairAddress(map_virt_addr + region.GetAddress() - map_phys_addr);
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}
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Init::SetupDramPhysicalMemoryRegions(memory_layout);
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// Insert a physical region for the kernel code region.
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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code_start_phys_addr, code_region_size, KMemoryRegionType_DramKernelCode));
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// Insert a physical region for the kernel slab region.
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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slab_start_phys_addr, slab_region_size, KMemoryRegionType_DramKernelSlab));
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// Determine size available for kernel page table heaps, requiring > 8 MB.
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const PAddr resource_end_phys_addr = slab_start_phys_addr + resource_region_size;
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const size_t page_table_heap_size = resource_end_phys_addr - slab_end_phys_addr;
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ASSERT(page_table_heap_size / Size_4_MB > 2);
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// Insert a physical region for the kernel page table heap region
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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slab_end_phys_addr, page_table_heap_size, KMemoryRegionType_DramKernelPtHeap));
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// All DRAM regions that we haven't tagged by this point will be mapped under the linear
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// mapping. Tag them.
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for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
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if (region.GetType() == KMemoryRegionType_Dram) {
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// Check that the region is valid.
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ASSERT(region.GetEndAddress() != 0);
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// Set the linear map attribute.
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region.SetTypeAttribute(KMemoryRegionAttr_LinearMapped);
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}
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}
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// Get the linear region extents.
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const auto linear_extents =
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memory_layout.GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
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KMemoryRegionAttr_LinearMapped);
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ASSERT(linear_extents.GetEndAddress() != 0);
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// Setup the linear mapping region.
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constexpr size_t LinearRegionAlign = Size_1_GB;
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const PAddr aligned_linear_phys_start =
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Common::AlignDown(linear_extents.GetAddress(), LinearRegionAlign);
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const size_t linear_region_size =
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Common::AlignUp(linear_extents.GetEndAddress(), LinearRegionAlign) -
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aligned_linear_phys_start;
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const VAddr linear_region_start =
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memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegionWithGuard(
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linear_region_size, LinearRegionAlign, KMemoryRegionType_None, LinearRegionAlign);
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const u64 linear_region_phys_to_virt_diff = linear_region_start - aligned_linear_phys_start;
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// Map and create regions for all the linearly-mapped data.
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{
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PAddr cur_phys_addr = 0;
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u64 cur_size = 0;
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for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
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if (!region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
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continue;
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}
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ASSERT(region.GetEndAddress() != 0);
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if (cur_size == 0) {
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cur_phys_addr = region.GetAddress();
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cur_size = region.GetSize();
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} else if (cur_phys_addr + cur_size == region.GetAddress()) {
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cur_size += region.GetSize();
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} else {
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const VAddr cur_virt_addr = cur_phys_addr + linear_region_phys_to_virt_diff;
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cur_phys_addr = region.GetAddress();
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cur_size = region.GetSize();
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}
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const VAddr region_virt_addr =
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region.GetAddress() + linear_region_phys_to_virt_diff;
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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region_virt_addr, region.GetSize(),
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GetTypeForVirtualLinearMapping(region.GetType())));
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region.SetPairAddress(region_virt_addr);
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KMemoryRegion* virt_region =
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memory_layout.GetVirtualMemoryRegionTree().FindModifiable(region_virt_addr);
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ASSERT(virt_region != nullptr);
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virt_region->SetPairAddress(region.GetAddress());
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}
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}
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// Insert regions for the initial page table region.
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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resource_end_phys_addr, KernelPageTableHeapSize, KMemoryRegionType_DramKernelInitPt));
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
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resource_end_phys_addr + linear_region_phys_to_virt_diff, KernelPageTableHeapSize,
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KMemoryRegionType_VirtualDramKernelInitPt));
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// All linear-mapped DRAM regions that we haven't tagged by this point will be allocated to
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// some pool partition. Tag them.
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for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
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if (region.GetType() == (KMemoryRegionType_Dram | KMemoryRegionAttr_LinearMapped)) {
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region.SetType(KMemoryRegionType_DramPoolPartition);
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}
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}
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// Setup all other memory regions needed to arrange the pool partitions.
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Init::SetupPoolPartitionMemoryRegions(memory_layout);
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// Cache all linear regions in their own trees for faster access, later.
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memory_layout.InitializeLinearMemoryRegionTrees(aligned_linear_phys_start,
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linear_region_start);
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const auto system_pool = memory_layout.GetKernelSystemPoolRegionPhysicalExtents();
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const auto applet_pool = memory_layout.GetKernelAppletPoolRegionPhysicalExtents();
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const auto application_pool = memory_layout.GetKernelApplicationPoolRegionPhysicalExtents();
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// Initialize memory managers
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memory_manager = std::make_unique<KMemoryManager>();
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memory_manager->InitializeManager(KMemoryManager::Pool::Application,
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application_pool.GetAddress(),
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application_pool.GetEndAddress());
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memory_manager->InitializeManager(KMemoryManager::Pool::Applet, applet_pool.GetAddress(),
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applet_pool.GetEndAddress());
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memory_manager->InitializeManager(KMemoryManager::Pool::System, system_pool.GetAddress(),
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system_pool.GetEndAddress());
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// Setup memory regions for emulated processes
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// TODO(bunnei): These should not be hardcoded regions initialized within the kernel
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constexpr std::size_t hid_size{0x40000};
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constexpr std::size_t font_size{0x1100000};
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constexpr std::size_t irs_size{0x8000};
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constexpr std::size_t time_size{0x1000};
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constexpr PAddr hid_addr{layout.System().GetAddress()};
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constexpr PAddr font_pa{layout.System().GetAddress() + hid_size};
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constexpr PAddr irs_addr{layout.System().GetAddress() + hid_size + font_size};
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constexpr PAddr time_addr{layout.System().GetAddress() + hid_size + font_size + irs_size};
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// Initialize memory manager
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memory_manager = std::make_unique<KMemoryManager>();
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memory_manager->InitializeManager(KMemoryManager::Pool::Application,
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layout.Application().GetAddress(),
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layout.Application().GetLastAddress());
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memory_manager->InitializeManager(KMemoryManager::Pool::Applet,
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layout.Applet().GetAddress(),
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layout.Applet().GetLastAddress());
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memory_manager->InitializeManager(KMemoryManager::Pool::System,
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layout.System().GetAddress(),
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layout.System().GetLastAddress());
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const PAddr hid_phys_addr{system_pool.GetAddress()};
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const PAddr font_phys_addr{system_pool.GetAddress() + hid_size};
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const PAddr irs_phys_addr{system_pool.GetAddress() + hid_size + font_size};
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const PAddr time_phys_addr{system_pool.GetAddress() + hid_size + font_size + irs_size};
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hid_shared_mem = Kernel::KSharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr, {hid_addr, hid_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, hid_addr, hid_size,
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system.Kernel(), system.DeviceMemory(), nullptr, {hid_phys_addr, hid_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, hid_phys_addr, hid_size,
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"HID:SharedMemory");
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font_shared_mem = Kernel::KSharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr, {font_pa, font_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, font_pa, font_size,
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system.Kernel(), system.DeviceMemory(), nullptr, {font_phys_addr, font_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, font_phys_addr, font_size,
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"Font:SharedMemory");
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irs_shared_mem = Kernel::KSharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr, {irs_addr, irs_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, irs_addr, irs_size,
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system.Kernel(), system.DeviceMemory(), nullptr, {irs_phys_addr, irs_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, irs_phys_addr, irs_size,
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"IRS:SharedMemory");
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time_shared_mem = Kernel::KSharedMemory::Create(
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system.Kernel(), system.DeviceMemory(), nullptr, {time_addr, time_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, time_addr, time_size,
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system.Kernel(), system.DeviceMemory(), nullptr, {time_phys_addr, time_size / PageSize},
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KMemoryPermission::None, KMemoryPermission::Read, time_phys_addr, time_size,
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"Time:SharedMemory");
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// Allocate slab heaps
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