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-rw-r--r--src/core/hle/kernel/k_memory_layout.board.nintendo_nx.cpp199
-rw-r--r--src/core/hle/kernel/k_memory_layout.cpp183
-rw-r--r--src/core/hle/kernel/k_memory_layout.h384
-rw-r--r--src/core/hle/kernel/kernel.cpp319
-rw-r--r--src/core/hle/kernel/kernel.h2
5 files changed, 1031 insertions, 56 deletions
diff --git a/src/core/hle/kernel/k_memory_layout.board.nintendo_nx.cpp b/src/core/hle/kernel/k_memory_layout.board.nintendo_nx.cpp
new file mode 100644
index 000000000..a78551291
--- /dev/null
+++ b/src/core/hle/kernel/k_memory_layout.board.nintendo_nx.cpp
@@ -0,0 +1,199 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/alignment.h"
+#include "core/hle/kernel/k_memory_layout.h"
+#include "core/hle/kernel/k_memory_manager.h"
+#include "core/hle/kernel/k_system_control.h"
+#include "core/hle/kernel/k_trace.h"
+
+namespace Kernel {
+
+namespace {
+
+constexpr size_t CarveoutAlignment = 0x20000;
+constexpr size_t CarveoutSizeMax = (512ULL * 1024 * 1024) - CarveoutAlignment;
+
+bool SetupPowerManagementControllerMemoryRegion(KMemoryLayout& memory_layout) {
+ // Above firmware 2.0.0, the PMC is not mappable.
+ return memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x7000E000, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap) &&
+ memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x7000E400, 0xC00,
+ KMemoryRegionType_PowerManagementController | KMemoryRegionAttr_NoUserMap);
+}
+
+void InsertPoolPartitionRegionIntoBothTrees(KMemoryLayout& memory_layout, size_t start, size_t size,
+ KMemoryRegionType phys_type,
+ KMemoryRegionType virt_type, u32& cur_attr) {
+ const u32 attr = cur_attr++;
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(start, size,
+ static_cast<u32>(phys_type), attr));
+ const KMemoryRegion* phys = memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(
+ static_cast<u32>(phys_type), attr);
+ ASSERT(phys != nullptr);
+ ASSERT(phys->GetEndAddress() != 0);
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(phys->GetPairAddress(), size,
+ static_cast<u32>(virt_type), attr));
+}
+
+} // namespace
+
+namespace Init {
+
+void SetupDevicePhysicalMemoryRegions(KMemoryLayout& memory_layout) {
+ ASSERT(SetupPowerManagementControllerMemoryRegion(memory_layout));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x70019000, 0x1000, KMemoryRegionType_MemoryController | KMemoryRegionAttr_NoUserMap));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x7001C000, 0x1000, KMemoryRegionType_MemoryController0 | KMemoryRegionAttr_NoUserMap));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x7001D000, 0x1000, KMemoryRegionType_MemoryController1 | KMemoryRegionAttr_NoUserMap));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x50040000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x50041000, 0x1000,
+ KMemoryRegionType_InterruptDistributor | KMemoryRegionAttr_ShouldKernelMap));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x50042000, 0x1000,
+ KMemoryRegionType_InterruptCpuInterface | KMemoryRegionAttr_ShouldKernelMap));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x50043000, 0x1D000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+
+ // Map IRAM unconditionally, to support debug-logging-to-iram build config.
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x40000000, 0x40000, KMemoryRegionType_LegacyLpsIram | KMemoryRegionAttr_ShouldKernelMap));
+
+ // Above firmware 2.0.0, prevent mapping the bpmp exception vectors or the ipatch region.
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x6000F000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ 0x6001DC00, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
+}
+
+void SetupDramPhysicalMemoryRegions(KMemoryLayout& memory_layout) {
+ const size_t intended_memory_size = KSystemControl::Init::GetIntendedMemorySize();
+ const PAddr physical_memory_base_address =
+ KSystemControl::Init::GetKernelPhysicalBaseAddress(DramPhysicalAddress);
+
+ // Insert blocks into the tree.
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ physical_memory_base_address, intended_memory_size, KMemoryRegionType_Dram));
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ physical_memory_base_address, ReservedEarlyDramSize, KMemoryRegionType_DramReservedEarly));
+
+ // Insert the KTrace block at the end of Dram, if KTrace is enabled.
+ static_assert(!IsKTraceEnabled || KTraceBufferSize > 0);
+ if constexpr (IsKTraceEnabled) {
+ const PAddr ktrace_buffer_phys_addr =
+ physical_memory_base_address + intended_memory_size - KTraceBufferSize;
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ ktrace_buffer_phys_addr, KTraceBufferSize, KMemoryRegionType_KernelTraceBuffer));
+ }
+}
+
+void SetupPoolPartitionMemoryRegions(KMemoryLayout& memory_layout) {
+ // Start by identifying the extents of the DRAM memory region.
+ const auto dram_extents = memory_layout.GetMainMemoryPhysicalExtents();
+ ASSERT(dram_extents.GetEndAddress() != 0);
+
+ // Determine the end of the pool region.
+ const u64 pool_end = dram_extents.GetEndAddress() - KTraceBufferSize;
+
+ // Find the start of the kernel DRAM region.
+ const KMemoryRegion* kernel_dram_region =
+ memory_layout.GetPhysicalMemoryRegionTree().FindFirstDerived(
+ KMemoryRegionType_DramKernelBase);
+ ASSERT(kernel_dram_region != nullptr);
+
+ const u64 kernel_dram_start = kernel_dram_region->GetAddress();
+ ASSERT(Common::IsAligned(kernel_dram_start, CarveoutAlignment));
+
+ // Find the start of the pool partitions region.
+ const KMemoryRegion* pool_partitions_region =
+ memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(
+ KMemoryRegionType_DramPoolPartition, 0);
+ ASSERT(pool_partitions_region != nullptr);
+ const u64 pool_partitions_start = pool_partitions_region->GetAddress();
+
+ // Setup the pool partition layouts.
+ // On 5.0.0+, setup modern 4-pool-partition layout.
+
+ // Get Application and Applet pool sizes.
+ const size_t application_pool_size = KSystemControl::Init::GetApplicationPoolSize();
+ const size_t applet_pool_size = KSystemControl::Init::GetAppletPoolSize();
+ const size_t unsafe_system_pool_min_size =
+ KSystemControl::Init::GetMinimumNonSecureSystemPoolSize();
+
+ // Decide on starting addresses for our pools.
+ const u64 application_pool_start = pool_end - application_pool_size;
+ const u64 applet_pool_start = application_pool_start - applet_pool_size;
+ const u64 unsafe_system_pool_start = std::min(
+ kernel_dram_start + CarveoutSizeMax,
+ Common::AlignDown(applet_pool_start - unsafe_system_pool_min_size, CarveoutAlignment));
+ const size_t unsafe_system_pool_size = applet_pool_start - unsafe_system_pool_start;
+
+ // We want to arrange application pool depending on where the middle of dram is.
+ const u64 dram_midpoint = (dram_extents.GetAddress() + dram_extents.GetEndAddress()) / 2;
+ u32 cur_pool_attr = 0;
+ size_t total_overhead_size = 0;
+ if (dram_extents.GetEndAddress() <= dram_midpoint || dram_midpoint <= application_pool_start) {
+ InsertPoolPartitionRegionIntoBothTrees(
+ memory_layout, application_pool_start, application_pool_size,
+ KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
+ cur_pool_attr);
+ total_overhead_size +=
+ KMemoryManager::CalculateManagementOverheadSize(application_pool_size);
+ } else {
+ const size_t first_application_pool_size = dram_midpoint - application_pool_start;
+ const size_t second_application_pool_size =
+ application_pool_start + application_pool_size - dram_midpoint;
+ InsertPoolPartitionRegionIntoBothTrees(
+ memory_layout, application_pool_start, first_application_pool_size,
+ KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
+ cur_pool_attr);
+ InsertPoolPartitionRegionIntoBothTrees(
+ memory_layout, dram_midpoint, second_application_pool_size,
+ KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
+ cur_pool_attr);
+ total_overhead_size +=
+ KMemoryManager::CalculateManagementOverheadSize(first_application_pool_size);
+ total_overhead_size +=
+ KMemoryManager::CalculateManagementOverheadSize(second_application_pool_size);
+ }
+
+ // Insert the applet pool.
+ InsertPoolPartitionRegionIntoBothTrees(memory_layout, applet_pool_start, applet_pool_size,
+ KMemoryRegionType_DramAppletPool,
+ KMemoryRegionType_VirtualDramAppletPool, cur_pool_attr);
+ total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(applet_pool_size);
+
+ // Insert the nonsecure system pool.
+ InsertPoolPartitionRegionIntoBothTrees(
+ memory_layout, unsafe_system_pool_start, unsafe_system_pool_size,
+ KMemoryRegionType_DramSystemNonSecurePool, KMemoryRegionType_VirtualDramSystemNonSecurePool,
+ cur_pool_attr);
+ total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(unsafe_system_pool_size);
+
+ // Insert the pool management region.
+ total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(
+ (unsafe_system_pool_start - pool_partitions_start) - total_overhead_size);
+ const u64 pool_management_start = unsafe_system_pool_start - total_overhead_size;
+ const size_t pool_management_size = total_overhead_size;
+ u32 pool_management_attr = 0;
+ InsertPoolPartitionRegionIntoBothTrees(
+ memory_layout, pool_management_start, pool_management_size,
+ KMemoryRegionType_DramPoolManagement, KMemoryRegionType_VirtualDramPoolManagement,
+ pool_management_attr);
+
+ // Insert the system pool.
+ const u64 system_pool_size = pool_management_start - pool_partitions_start;
+ InsertPoolPartitionRegionIntoBothTrees(memory_layout, pool_partitions_start, system_pool_size,
+ KMemoryRegionType_DramSystemPool,
+ KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr);
+}
+
+} // namespace Init
+
+} // namespace Kernel
diff --git a/src/core/hle/kernel/k_memory_layout.cpp b/src/core/hle/kernel/k_memory_layout.cpp
new file mode 100644
index 000000000..58fe4a133
--- /dev/null
+++ b/src/core/hle/kernel/k_memory_layout.cpp
@@ -0,0 +1,183 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/alignment.h"
+#include "core/hle/kernel/k_memory_layout.h"
+#include "core/hle/kernel/k_system_control.h"
+
+namespace Kernel {
+
+namespace {
+
+class KMemoryRegionAllocator final : NonCopyable {
+public:
+ static constexpr size_t MaxMemoryRegions = 200;
+
+private:
+ KMemoryRegion region_heap[MaxMemoryRegions]{};
+ size_t num_regions{};
+
+public:
+ constexpr KMemoryRegionAllocator() = default;
+
+public:
+ template <typename... Args>
+ KMemoryRegion* Allocate(Args&&... args) {
+ // Ensure we stay within the bounds of our heap.
+ ASSERT(this->num_regions < MaxMemoryRegions);
+
+ // Create the new region.
+ KMemoryRegion* region = std::addressof(this->region_heap[this->num_regions++]);
+ new (region) KMemoryRegion(std::forward<Args>(args)...);
+
+ return region;
+ }
+};
+
+KMemoryRegionAllocator g_memory_region_allocator;
+
+template <typename... Args>
+KMemoryRegion* AllocateRegion(Args&&... args) {
+ return g_memory_region_allocator.Allocate(std::forward<Args>(args)...);
+}
+
+} // namespace
+
+void KMemoryRegionTree::InsertDirectly(u64 address, u64 last_address, u32 attr, u32 type_id) {
+ this->insert(*AllocateRegion(address, last_address, attr, type_id));
+}
+
+bool KMemoryRegionTree::Insert(u64 address, size_t size, u32 type_id, u32 new_attr, u32 old_attr) {
+ // Locate the memory region that contains the address.
+ KMemoryRegion* found = this->FindModifiable(address);
+
+ // We require that the old attr is correct.
+ if (found->GetAttributes() != old_attr) {
+ return false;
+ }
+
+ // We further require that the region can be split from the old region.
+ const u64 inserted_region_end = address + size;
+ const u64 inserted_region_last = inserted_region_end - 1;
+ if (found->GetLastAddress() < inserted_region_last) {
+ return false;
+ }
+
+ // Further, we require that the type id is a valid transformation.
+ if (!found->CanDerive(type_id)) {
+ return false;
+ }
+
+ // Cache information from the region before we remove it.
+ const u64 old_address = found->GetAddress();
+ const u64 old_last = found->GetLastAddress();
+ const u64 old_pair = found->GetPairAddress();
+ const u32 old_type = found->GetType();
+
+ // Erase the existing region from the tree.
+ this->erase(this->iterator_to(*found));
+
+ // Insert the new region into the tree.
+ if (old_address == address) {
+ // Reuse the old object for the new region, if we can.
+ found->Reset(address, inserted_region_last, old_pair, new_attr, type_id);
+ this->insert(*found);
+ } else {
+ // If we can't re-use, adjust the old region.
+ found->Reset(old_address, address - 1, old_pair, old_attr, old_type);
+ this->insert(*found);
+
+ // Insert a new region for the split.
+ const u64 new_pair = (old_pair != std::numeric_limits<u64>::max())
+ ? old_pair + (address - old_address)
+ : old_pair;
+ this->insert(*AllocateRegion(address, inserted_region_last, new_pair, new_attr, type_id));
+ }
+
+ // If we need to insert a region after the region, do so.
+ if (old_last != inserted_region_last) {
+ const u64 after_pair = (old_pair != std::numeric_limits<u64>::max())
+ ? old_pair + (inserted_region_end - old_address)
+ : old_pair;
+ this->insert(
+ *AllocateRegion(inserted_region_end, old_last, after_pair, old_attr, old_type));
+ }
+
+ return true;
+}
+
+VAddr KMemoryRegionTree::GetRandomAlignedRegion(size_t size, size_t alignment, u32 type_id) {
+ // We want to find the total extents of the type id.
+ const auto extents = this->GetDerivedRegionExtents(static_cast<KMemoryRegionType>(type_id));
+
+ // Ensure that our alignment is correct.
+ ASSERT(Common::IsAligned(extents.GetAddress(), alignment));
+
+ const u64 first_address = extents.GetAddress();
+ const u64 last_address = extents.GetLastAddress();
+
+ const u64 first_index = first_address / alignment;
+ const u64 last_index = last_address / alignment;
+
+ while (true) {
+ const u64 candidate =
+ KSystemControl::GenerateRandomRange(first_index, last_index) * alignment;
+
+ // Ensure that the candidate doesn't overflow with the size.
+ if (!(candidate < candidate + size)) {
+ continue;
+ }
+
+ const u64 candidate_last = candidate + size - 1;
+
+ // Ensure that the candidate fits within the region.
+ if (candidate_last > last_address) {
+ continue;
+ }
+
+ // Locate the candidate region, and ensure it fits and has the correct type id.
+ if (const auto& candidate_region = *this->Find(candidate);
+ !(candidate_last <= candidate_region.GetLastAddress() &&
+ candidate_region.GetType() == type_id)) {
+ continue;
+ }
+
+ return candidate;
+ }
+}
+
+void KMemoryLayout::InitializeLinearMemoryRegionTrees(PAddr aligned_linear_phys_start,
+ VAddr linear_virtual_start) {
+ // Set static differences.
+ linear_phys_to_virt_diff = linear_virtual_start - aligned_linear_phys_start;
+ linear_virt_to_phys_diff = aligned_linear_phys_start - linear_virtual_start;
+
+ // Initialize linear trees.
+ for (auto& region : GetPhysicalMemoryRegionTree()) {
+ if (region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
+ GetPhysicalLinearMemoryRegionTree().InsertDirectly(
+ region.GetAddress(), region.GetLastAddress(), region.GetAttributes(),
+ region.GetType());
+ }
+ }
+
+ for (auto& region : GetVirtualMemoryRegionTree()) {
+ if (region.IsDerivedFrom(KMemoryRegionType_Dram)) {
+ GetVirtualLinearMemoryRegionTree().InsertDirectly(
+ region.GetAddress(), region.GetLastAddress(), region.GetAttributes(),
+ region.GetType());
+ }
+ }
+}
+
+size_t KMemoryLayout::GetResourceRegionSizeForInit() {
+ // Calculate resource region size based on whether we allow extra threads.
+ const bool use_extra_resources = KSystemControl::Init::ShouldIncreaseThreadResourceLimit();
+ size_t resource_region_size =
+ KernelResourceSize + (use_extra_resources ? KernelSlabHeapAdditionalSize : 0);
+
+ return resource_region_size;
+}
+
+} // namespace Kernel
diff --git a/src/core/hle/kernel/k_memory_layout.h b/src/core/hle/kernel/k_memory_layout.h
index a76ffa02e..f2b46c932 100644
--- a/src/core/hle/kernel/k_memory_layout.h
+++ b/src/core/hle/kernel/k_memory_layout.h
@@ -1,24 +1,67 @@
-// Copyright 2020 yuzu Emulator Project
+// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
+#include "common/alignment.h"
+#include "common/common_sizes.h"
#include "common/common_types.h"
#include "core/device_memory.h"
#include "core/hle/kernel/k_memory_region.h"
+#include "core/hle/kernel/k_memory_region_type.h"
+#include "core/hle/kernel/memory_types.h"
namespace Kernel {
-constexpr std::size_t KernelAslrAlignment = 2 * 1024 * 1024;
+constexpr std::size_t L1BlockSize = Size_1_GB;
+constexpr std::size_t L2BlockSize = Size_2_MB;
+
+constexpr std::size_t GetMaximumOverheadSize(std::size_t size) {
+ return (Common::DivideUp(size, L1BlockSize) + Common::DivideUp(size, L2BlockSize)) * PageSize;
+}
+
+constexpr std::size_t MainMemorySize = Size_4_GB;
+constexpr std::size_t MainMemorySizeMax = Size_8_GB;
+
+constexpr std::size_t ReservedEarlyDramSize = 0x60000;
+constexpr std::size_t DramPhysicalAddress = 0x80000000;
+
+constexpr std::size_t KernelAslrAlignment = Size_2_MB;
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 KernelVirtualAddressSpaceLast = KernelVirtualAddressSpaceEnd - 1ULL;
constexpr std::size_t KernelVirtualAddressSpaceSize =
KernelVirtualAddressSpaceEnd - KernelVirtualAddressSpaceBase;
+constexpr std::size_t KernelVirtualAddressCodeBase = KernelVirtualAddressSpaceBase;
+constexpr std::size_t KernelVirtualAddressCodeSize = 0x62000;
+constexpr std::size_t KernelVirtualAddressCodeEnd =
+ KernelVirtualAddressCodeBase + KernelVirtualAddressCodeSize;
+
+constexpr std::size_t KernelPhysicalAddressSpaceBase = 0ULL;
+constexpr std::size_t KernelPhysicalAddressSpaceEnd =
+ KernelPhysicalAddressSpaceBase + KernelPhysicalAddressSpaceWidth;
+constexpr std::size_t KernelPhysicalAddressSpaceLast = KernelPhysicalAddressSpaceEnd - 1ULL;
+constexpr std::size_t KernelPhysicalAddressSpaceSize =
+ KernelPhysicalAddressSpaceEnd - KernelPhysicalAddressSpaceBase;
+constexpr std::size_t KernelPhysicalAddressCodeBase = DramPhysicalAddress + ReservedEarlyDramSize;
+
+constexpr std::size_t KernelPageTableHeapSize = GetMaximumOverheadSize(MainMemorySizeMax);
+constexpr std::size_t KernelInitialPageHeapSize = Size_128_KB;
+
+constexpr std::size_t KernelSlabHeapDataSize = Size_5_MB;
+constexpr std::size_t KernelSlabHeapGapsSize = Size_2_MB - Size_64_KB;
+constexpr std::size_t KernelSlabHeapSize = KernelSlabHeapDataSize + KernelSlabHeapGapsSize;
+
+// NOTE: This is calculated from KThread slab counts, assuming KThread size <= 0x860.
+constexpr std::size_t KernelSlabHeapAdditionalSize = 0x68000ULL;
+
+constexpr std::size_t KernelResourceSize =
+ KernelPageTableHeapSize + KernelInitialPageHeapSize + KernelSlabHeapSize;
constexpr bool IsKernelAddressKey(VAddr key) {
return KernelVirtualAddressSpaceBase <= key && key <= KernelVirtualAddressSpaceLast;
@@ -30,41 +73,324 @@ constexpr bool IsKernelAddress(VAddr address) {
class KMemoryLayout final {
public:
- constexpr const KMemoryRegion& Application() const {
- return application;
+ KMemoryLayout() = default;
+
+ KMemoryRegionTree& GetVirtualMemoryRegionTree() {
+ return virtual_tree;
+ }
+ const KMemoryRegionTree& GetVirtualMemoryRegionTree() const {
+ return virtual_tree;
+ }
+ KMemoryRegionTree& GetPhysicalMemoryRegionTree() {
+ return physical_tree;
+ }
+ const KMemoryRegionTree& GetPhysicalMemoryRegionTree() const {
+ return physical_tree;
+ }
+ KMemoryRegionTree& GetVirtualLinearMemoryRegionTree() {
+ return virtual_linear_tree;
+ }
+ const KMemoryRegionTree& GetVirtualLinearMemoryRegionTree() const {
+ return virtual_linear_tree;
+ }
+ KMemoryRegionTree& GetPhysicalLinearMemoryRegionTree() {
+ return physical_linear_tree;
+ }
+ const KMemoryRegionTree& GetPhysicalLinearMemoryRegionTree() const {
+ return physical_linear_tree;
}
- constexpr const KMemoryRegion& Applet() const {
- return applet;
+ VAddr GetLinearVirtualAddress(PAddr address) const {
+ return address + linear_phys_to_virt_diff;
+ }
+ PAddr GetLinearPhysicalAddress(VAddr address) const {
+ return address + linear_virt_to_phys_diff;
}
- constexpr const KMemoryRegion& System() const {
- return system;
+ const KMemoryRegion* FindVirtual(VAddr address) const {
+ return Find(address, GetVirtualMemoryRegionTree());
+ }
+ const KMemoryRegion* FindPhysical(PAddr address) const {
+ return Find(address, GetPhysicalMemoryRegionTree());
}
- static constexpr KMemoryLayout GetDefaultLayout() {
- constexpr std::size_t application_size{0xcd500000};
- constexpr std::size_t applet_size{0x1fb00000};
- constexpr PAddr application_start_address{Core::DramMemoryMap::End - application_size};
- constexpr PAddr application_end_address{Core::DramMemoryMap::End};
- constexpr PAddr applet_start_address{application_start_address - applet_size};
- constexpr PAddr applet_end_address{applet_start_address + applet_size};
- constexpr PAddr system_start_address{Core::DramMemoryMap::SlabHeapEnd};
- constexpr PAddr system_end_address{applet_start_address};
- return {application_start_address, application_end_address, applet_start_address,
- applet_end_address, system_start_address, system_end_address};
+ const KMemoryRegion* FindVirtualLinear(VAddr address) const {
+ return Find(address, GetVirtualLinearMemoryRegionTree());
+ }
+ const KMemoryRegion* FindPhysicalLinear(PAddr address) const {
+ return Find(address, GetPhysicalLinearMemoryRegionTree());
+ }
+
+ VAddr GetMainStackTopAddress(s32 core_id) const {
+ return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscMainStack);
+ }
+ VAddr GetIdleStackTopAddress(s32 core_id) const {
+ return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscIdleStack);
+ }
+ VAddr GetExceptionStackTopAddress(s32 core_id) const {
+ return GetStackTopAddress(core_id, KMemoryRegionType_KernelMiscExceptionStack);
+ }
+
+ VAddr GetSlabRegionAddress() const {
+ return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelSlab))
+ .GetAddress();
+ }
+
+ const KMemoryRegion& GetDeviceRegion(KMemoryRegionType type) const {
+ return Dereference(GetPhysicalMemoryRegionTree().FindFirstDerived(type));
+ }
+ PAddr GetDevicePhysicalAddress(KMemoryRegionType type) const {
+ return GetDeviceRegion(type).GetAddress();
+ }
+ VAddr GetDeviceVirtualAddress(KMemoryRegionType type) const {
+ return GetDeviceRegion(type).GetPairAddress();
+ }
+
+ const KMemoryRegion& GetPoolManagementRegion() const {
+ return Dereference(
+ GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_VirtualDramPoolManagement));
+ }
+ const KMemoryRegion& GetPageTableHeapRegion() const {
+ return Dereference(
+ GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_VirtualDramKernelPtHeap));
+ }
+ const KMemoryRegion& GetKernelStackRegion() const {
+ return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelStack));
+ }
+ const KMemoryRegion& GetTempRegion() const {
+ return Dereference(GetVirtualMemoryRegionTree().FindByType(KMemoryRegionType_KernelTemp));
+ }
+
+ const KMemoryRegion& GetKernelTraceBufferRegion() const {
+ return Dereference(GetVirtualLinearMemoryRegionTree().FindByType(
+ KMemoryRegionType_VirtualDramKernelTraceBuffer));
+ }
+
+ const KMemoryRegion& GetVirtualLinearRegion(VAddr address) const {
+ return Dereference(FindVirtualLinear(address));
+ }
+
+ const KMemoryRegion* GetPhysicalKernelTraceBufferRegion() const {
+ return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_KernelTraceBuffer);
+ }
+ const KMemoryRegion* GetPhysicalOnMemoryBootImageRegion() const {
+ return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_OnMemoryBootImage);
+ }
+ const KMemoryRegion* GetPhysicalDTBRegion() const {
+ return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_DTB);
+ }
+
+ bool IsHeapPhysicalAddress(const KMemoryRegion*& region, PAddr address) const {
+ return IsTypedAddress(region, address, GetPhysicalLinearMemoryRegionTree(),
+ KMemoryRegionType_DramUserPool);
+ }
+ bool IsHeapVirtualAddress(const KMemoryRegion*& region, VAddr address) const {
+ return IsTypedAddress(region, address, GetVirtualLinearMemoryRegionTree(),
+ KMemoryRegionType_VirtualDramUserPool);
+ }
+
+ bool IsHeapPhysicalAddress(const KMemoryRegion*& region, PAddr address, size_t size) const {
+ return IsTypedAddress(region, address, size, GetPhysicalLinearMemoryRegionTree(),
+ KMemoryRegionType_DramUserPool);
+ }
+ bool IsHeapVirtualAddress(const KMemoryRegion*& region, VAddr address, size_t size) const {
+ return IsTypedAddress(region, address, size, GetVirtualLinearMemoryRegionTree(),
+ KMemoryRegionType_VirtualDramUserPool);
+ }
+
+ bool IsLinearMappedPhysicalAddress(const KMemoryRegion*& region, PAddr address) const {
+ return IsTypedAddress(region, address, GetPhysicalLinearMemoryRegionTree(),
+ static_cast<KMemoryRegionType>(KMemoryRegionAttr_LinearMapped));
+ }
+ bool IsLinearMappedPhysicalAddress(const KMemoryRegion*& region, PAddr address,
+ size_t size) const {
+ return IsTypedAddress(region, address, size, GetPhysicalLinearMemoryRegionTree(),
+ static_cast<KMemoryRegionType>(KMemoryRegionAttr_LinearMapped));
+ }
+
+ std::tuple<size_t, size_t> GetTotalAndKernelMemorySizes() const {
+ size_t total_size = 0, kernel_size = 0;
+ for (const auto& region : GetPhysicalMemoryRegionTree()) {
+ if (region.IsDerivedFrom(KMemoryRegionType_Dram)) {
+ total_size += region.GetSize();
+ if (!region.IsDerivedFrom(KMemoryRegionType_DramUserPool)) {
+ kernel_size += region.GetSize();
+ }
+ }
+ }
+ return std::make_tuple(total_size, kernel_size);
+ }
+
+ void InitializeLinearMemoryRegionTrees(PAddr aligned_linear_phys_start,
+ VAddr linear_virtual_start);
+ static size_t GetResourceRegionSizeForInit();
+
+ auto GetKernelRegionExtents() const {
+ return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Kernel);
+ }
+ auto GetKernelCodeRegionExtents() const {
+ return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelCode);
+ }
+ auto GetKernelStackRegionExtents() const {
+ return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelStack);
+ }
+ auto GetKernelMiscRegionExtents() const {
+ return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelMisc);
+ }
+ auto GetKernelSlabRegionExtents() const {
+ return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelSlab);
+ }
+
+ auto GetLinearRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionAttr_LinearMapped);
+ }
+
+ auto GetLinearRegionVirtualExtents() const {
+ const auto physical = GetLinearRegionPhysicalExtents();
+ return KMemoryRegion(GetLinearVirtualAddress(physical.GetAddress()),
+ GetLinearVirtualAddress(physical.GetLastAddress()), 0,
+ KMemoryRegionType_None);
+ }
+
+ auto GetMainMemoryPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Dram);
+ }
+ auto GetCarveoutRegionExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionAttr_CarveoutProtected);
+ }
+
+ auto GetKernelRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramKernelBase);
+ }
+ auto GetKernelCodeRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramKernelCode);
+ }
+ auto GetKernelSlabRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramKernelSlab);
+ }
+ auto GetKernelPageTableHeapRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramKernelPtHeap);
+ }
+ auto GetKernelInitPageTableRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramKernelInitPt);
+ }
+
+ auto GetKernelPoolManagementRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramPoolManagement);
+ }
+ auto GetKernelPoolPartitionRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramPoolPartition);
+ }
+ auto GetKernelSystemPoolRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramSystemPool);
+ }
+ auto GetKernelSystemNonSecurePoolRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramSystemNonSecurePool);
+ }
+ auto GetKernelAppletPoolRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramAppletPool);
+ }
+ auto GetKernelApplicationPoolRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_DramApplicationPool);
+ }
+
+ auto GetKernelTraceBufferRegionPhysicalExtents() const {
+ return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionType_KernelTraceBuffer);
+ }
+
+private:
+ template <typename AddressType>
+ static bool IsTypedAddress(const KMemoryRegion*& region, AddressType address,
+ const KMemoryRegionTree& tree, KMemoryRegionType type) {
+ // Check if the cached region already contains the address.
+ if (region != nullptr && region->Contains(address)) {
+ return true;
+ }
+
+ // Find the containing region, and update the cache.
+ if (const KMemoryRegion* found = tree.Find(address);
+ found != nullptr && found->IsDerivedFrom(type)) {
+ region = found;
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ template <typename AddressType>
+ static bool IsTypedAddress(const KMemoryRegion*& region, AddressType address, size_t size,
+ const KMemoryRegionTree& tree, KMemoryRegionType type) {
+ // Get the end of the checked region.
+ const u64 last_address = address + size - 1;
+
+ // Walk the tree to verify the region is correct.
+ const KMemoryRegion* cur =
+ (region != nullptr && region->Contains(address)) ? region : tree.Find(address);
+ while (cur != nullptr && cur->IsDerivedFrom(type)) {
+ if (last_address <= cur->GetLastAddress()) {
+ region = cur;
+ return true;
+ }
+
+ cur = cur->GetNext();
+ }
+ return false;
+ }
+
+ template <typename AddressType>
+ static const KMemoryRegion* Find(AddressType address, const KMemoryRegionTree& tree) {
+ return tree.Find(address);
+ }
+
+ static KMemoryRegion& Dereference(KMemoryRegion* region) {
+ ASSERT(region != nullptr);
+ return *region;
+ }
+
+ static const KMemoryRegion& Dereference(const KMemoryRegion* region) {
+ ASSERT(region != nullptr);
+ return *region;
+ }
+
+ VAddr GetStackTopAddress(s32 core_id, KMemoryRegionType type) const {
+ const auto& region = Dereference(
+ GetVirtualMemoryRegionTree().FindByTypeAndAttribute(type, static_cast<u32>(core_id)));
+ ASSERT(region.GetEndAddress() != 0);
+ return region.GetEndAddress();
}
private:
- constexpr KMemoryLayout(PAddr application_start_address, std::size_t application_size,
- PAddr applet_start_address, std::size_t applet_size,
- PAddr system_start_address, std::size_t system_size)
- : application{application_start_address, application_size},
- applet{applet_start_address, applet_size}, system{system_start_address, system_size} {}
-
- const KMemoryRegion application;
- const KMemoryRegion applet;
- const KMemoryRegion system;
+ u64 linear_phys_to_virt_diff{};
+ u64 linear_virt_to_phys_diff{};
+ KMemoryRegionTree virtual_tree;
+ KMemoryRegionTree physical_tree;
+ KMemoryRegionTree virtual_linear_tree;
+ KMemoryRegionTree physical_linear_tree;
};
+namespace Init {
+
+// These should be generic, regardless of board.
+void SetupPoolPartitionMemoryRegions(KMemoryLayout& memory_layout);
+
+// These may be implemented in a board-specific manner.
+void SetupDevicePhysicalMemoryRegions(KMemoryLayout& memory_layout);
+void SetupDramPhysicalMemoryRegions(KMemoryLayout& memory_layout);
+
+} // namespace Init
+
} // namespace Kernel
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 48916df17..257d4bb83 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -1,4 +1,4 @@
-// Copyright 2014 Citra Emulator Project
+// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@@ -12,6 +12,7 @@
#include <utility>
#include "common/assert.h"
+#include "common/common_sizes.h"
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/thread.h"
@@ -269,44 +270,310 @@ struct KernelCore::Impl {
}
void InitializeMemoryLayout() {
- // Initialize memory layout
- constexpr KMemoryLayout layout{KMemoryLayout::GetDefaultLayout()};
+ KMemoryLayout memory_layout;
+
+ // Insert the root region for the virtual memory tree, from which all other regions will
+ // derive.
+ memory_layout.GetVirtualMemoryRegionTree().InsertDirectly(
+ KernelVirtualAddressSpaceBase,
+ KernelVirtualAddressSpaceBase + KernelVirtualAddressSpaceSize - 1);
+
+ // Insert the root region for the physical memory tree, from which all other regions will
+ // derive.
+ memory_layout.GetPhysicalMemoryRegionTree().InsertDirectly(
+ KernelPhysicalAddressSpaceBase,
+ KernelPhysicalAddressSpaceBase + KernelPhysicalAddressSpaceSize - 1);
+
+ // Save start and end for ease of use.
+ const VAddr code_start_virt_addr = KernelVirtualAddressCodeBase;
+ const VAddr code_end_virt_addr = KernelVirtualAddressCodeEnd;
+
+ // Setup the containing kernel region.
+ constexpr size_t KernelRegionSize = Size_1_GB;
+ constexpr size_t KernelRegionAlign = Size_1_GB;
+ constexpr VAddr kernel_region_start =
+ Common::AlignDown(code_start_virt_addr, KernelRegionAlign);
+ size_t kernel_region_size = KernelRegionSize;
+ if (!(kernel_region_start + KernelRegionSize - 1 <= KernelVirtualAddressSpaceLast)) {
+ kernel_region_size = KernelVirtualAddressSpaceEnd - kernel_region_start;
+ }
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ kernel_region_start, kernel_region_size, KMemoryRegionType_Kernel));
+
+ // Setup the code region.
+ constexpr size_t CodeRegionAlign = PageSize;
+ constexpr VAddr code_region_start =
+ Common::AlignDown(code_start_virt_addr, CodeRegionAlign);
+ constexpr VAddr code_region_end = Common::AlignUp(code_end_virt_addr, CodeRegionAlign);
+ constexpr size_t code_region_size = code_region_end - code_region_start;
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ code_region_start, code_region_size, KMemoryRegionType_KernelCode));
+
+ // Setup board-specific device physical regions.
+ Init::SetupDevicePhysicalMemoryRegions(memory_layout);
+
+ // Determine the amount of space needed for the misc region.
+ size_t misc_region_needed_size;
+ {
+ // Each core has a one page stack for all three stack types (Main, Idle, Exception).
+ misc_region_needed_size = Core::Hardware::NUM_CPU_CORES * (3 * (PageSize + PageSize));
+
+ // Account for each auto-map device.
+ for (const auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+ if (region.HasTypeAttribute(KMemoryRegionAttr_ShouldKernelMap)) {
+ // Check that the region is valid.
+ ASSERT(region.GetEndAddress() != 0);
+
+ // Account for the region.
+ misc_region_needed_size +=
+ PageSize + (Common::AlignUp(region.GetLastAddress(), PageSize) -
+ Common::AlignDown(region.GetAddress(), PageSize));
+ }
+ }
+
+ // Multiply the needed size by three, to account for the need for guard space.
+ misc_region_needed_size *= 3;
+ }
+
+ // Decide on the actual size for the misc region.
+ constexpr size_t MiscRegionAlign = KernelAslrAlignment;
+ constexpr size_t MiscRegionMinimumSize = Size_32_MB;
+ const size_t misc_region_size = Common::AlignUp(
+ std::max(misc_region_needed_size, MiscRegionMinimumSize), MiscRegionAlign);
+ ASSERT(misc_region_size > 0);
+
+ // Setup the misc region.
+ const VAddr misc_region_start =
+ memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+ misc_region_size, MiscRegionAlign, KMemoryRegionType_Kernel);
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ misc_region_start, misc_region_size, KMemoryRegionType_KernelMisc));
+
+ // Setup the stack region.
+ constexpr size_t StackRegionSize = Size_14_MB;
+ constexpr size_t StackRegionAlign = KernelAslrAlignment;
+ const VAddr stack_region_start =
+ memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+ StackRegionSize, StackRegionAlign, KMemoryRegionType_Kernel);
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ stack_region_start, StackRegionSize, KMemoryRegionType_KernelStack));
+
+ // Determine the size of the resource region.
+ const size_t resource_region_size = memory_layout.GetResourceRegionSizeForInit();
+
+ // Determine the size of the slab region.
+ const size_t slab_region_size = Common::AlignUp(KernelSlabHeapSize, PageSize);
+ ASSERT(slab_region_size <= resource_region_size);
+
+ // Setup the slab region.
+ const PAddr code_start_phys_addr = KernelPhysicalAddressCodeBase;
+ const PAddr code_end_phys_addr = code_start_phys_addr + code_region_size;
+ const PAddr slab_start_phys_addr = code_end_phys_addr;
+ const PAddr slab_end_phys_addr = slab_start_phys_addr + slab_region_size;
+ constexpr size_t SlabRegionAlign = KernelAslrAlignment;
+ const size_t slab_region_needed_size =
+ Common::AlignUp(code_end_phys_addr + slab_region_size, SlabRegionAlign) -
+ Common::AlignDown(code_end_phys_addr, SlabRegionAlign);
+ const VAddr slab_region_start =
+ memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+ slab_region_needed_size, SlabRegionAlign, KMemoryRegionType_Kernel) +
+ (code_end_phys_addr % SlabRegionAlign);
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ slab_region_start, slab_region_size, KMemoryRegionType_KernelSlab));
+
+ // Setup the temp region.
+ constexpr size_t TempRegionSize = Size_128_MB;
+ constexpr size_t TempRegionAlign = KernelAslrAlignment;
+ const VAddr temp_region_start =
+ memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegion(
+ TempRegionSize, TempRegionAlign, KMemoryRegionType_Kernel);
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(temp_region_start, TempRegionSize,
+ KMemoryRegionType_KernelTemp));
+
+ // Automatically map in devices that have auto-map attributes.
+ for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+ // We only care about kernel regions.
+ if (!region.IsDerivedFrom(KMemoryRegionType_Kernel)) {
+ continue;
+ }
+
+ // Check whether we should map the region.
+ if (!region.HasTypeAttribute(KMemoryRegionAttr_ShouldKernelMap)) {
+ continue;
+ }
+
+ // If this region has already been mapped, no need to consider it.
+ if (region.HasTypeAttribute(KMemoryRegionAttr_DidKernelMap)) {
+ continue;
+ }
+
+ // Check that the region is valid.
+ ASSERT(region.GetEndAddress() != 0);
+
+ // Set the attribute to note we've mapped this region.
+ region.SetTypeAttribute(KMemoryRegionAttr_DidKernelMap);
+
+ // Create a virtual pair region and insert it into the tree.
+ const PAddr map_phys_addr = Common::AlignDown(region.GetAddress(), PageSize);
+ const size_t map_size =
+ Common::AlignUp(region.GetEndAddress(), PageSize) - map_phys_addr;
+ const VAddr map_virt_addr =
+ memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegionWithGuard(
+ map_size, PageSize, KMemoryRegionType_KernelMisc, PageSize);
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ map_virt_addr, map_size, KMemoryRegionType_KernelMiscMappedDevice));
+ region.SetPairAddress(map_virt_addr + region.GetAddress() - map_phys_addr);
+ }
+
+ Init::SetupDramPhysicalMemoryRegions(memory_layout);
+
+ // Insert a physical region for the kernel code region.
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ code_start_phys_addr, code_region_size, KMemoryRegionType_DramKernelCode));
+
+ // Insert a physical region for the kernel slab region.
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ slab_start_phys_addr, slab_region_size, KMemoryRegionType_DramKernelSlab));
+
+ // Determine size available for kernel page table heaps, requiring > 8 MB.
+ const PAddr resource_end_phys_addr = slab_start_phys_addr + resource_region_size;
+ const size_t page_table_heap_size = resource_end_phys_addr - slab_end_phys_addr;
+ ASSERT(page_table_heap_size / Size_4_MB > 2);
+
+ // Insert a physical region for the kernel page table heap region
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ slab_end_phys_addr, page_table_heap_size, KMemoryRegionType_DramKernelPtHeap));
+
+ // All DRAM regions that we haven't tagged by this point will be mapped under the linear
+ // mapping. Tag them.
+ for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+ if (region.GetType() == KMemoryRegionType_Dram) {
+ // Check that the region is valid.
+ ASSERT(region.GetEndAddress() != 0);
+
+ // Set the linear map attribute.
+ region.SetTypeAttribute(KMemoryRegionAttr_LinearMapped);
+ }
+ }
+
+ // Get the linear region extents.
+ const auto linear_extents =
+ memory_layout.GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+ KMemoryRegionAttr_LinearMapped);
+ ASSERT(linear_extents.GetEndAddress() != 0);
+
+ // Setup the linear mapping region.
+ constexpr size_t LinearRegionAlign = Size_1_GB;
+ const PAddr aligned_linear_phys_start =
+ Common::AlignDown(linear_extents.GetAddress(), LinearRegionAlign);
+ const size_t linear_region_size =
+ Common::AlignUp(linear_extents.GetEndAddress(), LinearRegionAlign) -
+ aligned_linear_phys_start;
+ const VAddr linear_region_start =
+ memory_layout.GetVirtualMemoryRegionTree().GetRandomAlignedRegionWithGuard(
+ linear_region_size, LinearRegionAlign, KMemoryRegionType_None, LinearRegionAlign);
+
+ const u64 linear_region_phys_to_virt_diff = linear_region_start - aligned_linear_phys_start;
+
+ // Map and create regions for all the linearly-mapped data.
+ {
+ PAddr cur_phys_addr = 0;
+ u64 cur_size = 0;
+ for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+ if (!region.HasTypeAttribute(KMemoryRegionAttr_LinearMapped)) {
+ continue;
+ }
+
+ ASSERT(region.GetEndAddress() != 0);
+
+ if (cur_size == 0) {
+ cur_phys_addr = region.GetAddress();
+ cur_size = region.GetSize();
+ } else if (cur_phys_addr + cur_size == region.GetAddress()) {
+ cur_size += region.GetSize();
+ } else {
+ const VAddr cur_virt_addr = cur_phys_addr + linear_region_phys_to_virt_diff;
+ cur_phys_addr = region.GetAddress();
+ cur_size = region.GetSize();
+ }
+
+ const VAddr region_virt_addr =
+ region.GetAddress() + linear_region_phys_to_virt_diff;
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ region_virt_addr, region.GetSize(),
+ GetTypeForVirtualLinearMapping(region.GetType())));
+ region.SetPairAddress(region_virt_addr);
+
+ KMemoryRegion* virt_region =
+ memory_layout.GetVirtualMemoryRegionTree().FindModifiable(region_virt_addr);
+ ASSERT(virt_region != nullptr);
+ virt_region->SetPairAddress(region.GetAddress());
+ }
+ }
+
+ // Insert regions for the initial page table region.
+ ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
+ resource_end_phys_addr, KernelPageTableHeapSize, KMemoryRegionType_DramKernelInitPt));
+ ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(
+ resource_end_phys_addr + linear_region_phys_to_virt_diff, KernelPageTableHeapSize,
+ KMemoryRegionType_VirtualDramKernelInitPt));
+
+ // All linear-mapped DRAM regions that we haven't tagged by this point will be allocated to
+ // some pool partition. Tag them.
+ for (auto& region : memory_layout.GetPhysicalMemoryRegionTree()) {
+ if (region.GetType() == (KMemoryRegionType_Dram | KMemoryRegionAttr_LinearMapped)) {
+ region.SetType(KMemoryRegionType_DramPoolPartition);
+ }
+ }
+
+ // Setup all other memory regions needed to arrange the pool partitions.
+ Init::SetupPoolPartitionMemoryRegions(memory_layout);
+
+ // Cache all linear regions in their own trees for faster access, later.
+ memory_layout.InitializeLinearMemoryRegionTrees(aligned_linear_phys_start,
+ linear_region_start);
+
+ const auto system_pool = memory_layout.GetKernelSystemPoolRegionPhysicalExtents();
+ const auto applet_pool = memory_layout.GetKernelAppletPoolRegionPhysicalExtents();
+ const auto application_pool = memory_layout.GetKernelApplicationPoolRegionPhysicalExtents();
+
+ // Initialize memory managers
+ memory_manager = std::make_unique<KMemoryManager>();
+ memory_manager->InitializeManager(KMemoryManager::Pool::Application,
+ application_pool.GetAddress(),
+ application_pool.GetEndAddress());
+ memory_manager->InitializeManager(KMemoryManager::Pool::Applet, applet_pool.GetAddress(),
+ applet_pool.GetEndAddress());
+ memory_manager->InitializeManager(KMemoryManager::Pool::System, system_pool.GetAddress(),
+ system_pool.GetEndAddress());
+
+ // Setup memory regions for emulated processes
+ // TODO(bunnei): These should not be hardcoded regions initialized within the kernel
constexpr std::size_t hid_size{0x40000};
constexpr std::size_t font_size{0x1100000};
constexpr std::size_t irs_size{0x8000};
constexpr std::size_t time_size{0x1000};
- constexpr PAddr hid_addr{layout.System().GetAddress()};
- constexpr PAddr font_pa{layout.System().GetAddress() + hid_size};
- constexpr PAddr irs_addr{layout.System().GetAddress() + hid_size + font_size};
- constexpr PAddr time_addr{layout.System().GetAddress() + hid_size + font_size + irs_size};
- // Initialize memory manager
- memory_manager = std::make_unique<KMemoryManager>();
- memory_manager->InitializeManager(KMemoryManager::Pool::Application,
- layout.Application().GetAddress(),
- layout.Application().GetLastAddress());
- memory_manager->InitializeManager(KMemoryManager::Pool::Applet,
- layout.Applet().GetAddress(),
- layout.Applet().GetLastAddress());
- memory_manager->InitializeManager(KMemoryManager::Pool::System,
- layout.System().GetAddress(),
- layout.System().GetLastAddress());
+ const PAddr hid_phys_addr{system_pool.GetAddress()};
+ const PAddr font_phys_addr{system_pool.GetAddress() + hid_size};
+ const PAddr irs_phys_addr{system_pool.GetAddress() + hid_size + font_size};
+ const PAddr time_phys_addr{system_pool.GetAddress() + hid_size + font_size + irs_size};
hid_shared_mem = Kernel::KSharedMemory::Create(
- system.Kernel(), system.DeviceMemory(), nullptr, {hid_addr, hid_size / PageSize},
- KMemoryPermission::None, KMemoryPermission::Read, hid_addr, hid_size,
+ system.Kernel(), system.DeviceMemory(), nullptr, {hid_phys_addr, hid_size / PageSize},
+ KMemoryPermission::None, KMemoryPermission::Read, hid_phys_addr, hid_size,
"HID:SharedMemory");
font_shared_mem = Kernel::KSharedMemory::Create(
- system.Kernel(), system.DeviceMemory(), nullptr, {font_pa, font_size / PageSize},
- KMemoryPermission::None, KMemoryPermission::Read, font_pa, font_size,
+ system.Kernel(), system.DeviceMemory(), nullptr, {font_phys_addr, font_size / PageSize},
+ KMemoryPermission::None, KMemoryPermission::Read, font_phys_addr, font_size,
"Font:SharedMemory");
irs_shared_mem = Kernel::KSharedMemory::Create(
- system.Kernel(), system.DeviceMemory(), nullptr, {irs_addr, irs_size / PageSize},
- KMemoryPermission::None, KMemoryPermission::Read, irs_addr, irs_size,
+ system.Kernel(), system.DeviceMemory(), nullptr, {irs_phys_addr, irs_size / PageSize},
+ KMemoryPermission::None, KMemoryPermission::Read, irs_phys_addr, irs_size,
"IRS:SharedMemory");
time_shared_mem = Kernel::KSharedMemory::Create(
- system.Kernel(), system.DeviceMemory(), nullptr, {time_addr, time_size / PageSize},
- KMemoryPermission::None, KMemoryPermission::Read, time_addr, time_size,
+ system.Kernel(), system.DeviceMemory(), nullptr, {time_phys_addr, time_size / PageSize},
+ KMemoryPermission::None, KMemoryPermission::Read, time_phys_addr, time_size,
"Time:SharedMemory");
// Allocate slab heaps
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 56906f2da..a500e63bc 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -1,4 +1,4 @@
-// Copyright 2014 Citra Emulator Project / PPSSPP Project
+// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.