199 lines
10 KiB
C++
199 lines
10 KiB
C++
// 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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#include "common/alignment.h"
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#include "core/hle/kernel/k_memory_layout.h"
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#include "core/hle/kernel/k_memory_manager.h"
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#include "core/hle/kernel/k_system_control.h"
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#include "core/hle/kernel/k_trace.h"
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namespace Kernel {
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namespace {
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constexpr size_t CarveoutAlignment = 0x20000;
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constexpr size_t CarveoutSizeMax = (512ULL * 1024 * 1024) - CarveoutAlignment;
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bool SetupPowerManagementControllerMemoryRegion(KMemoryLayout& memory_layout) {
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// Above firmware 2.0.0, the PMC is not mappable.
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return memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x7000E000, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap) &&
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memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x7000E400, 0xC00,
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KMemoryRegionType_PowerManagementController | KMemoryRegionAttr_NoUserMap);
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}
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void InsertPoolPartitionRegionIntoBothTrees(KMemoryLayout& memory_layout, size_t start, size_t size,
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KMemoryRegionType phys_type,
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KMemoryRegionType virt_type, u32& cur_attr) {
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const u32 attr = cur_attr++;
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(start, size,
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static_cast<u32>(phys_type), attr));
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const KMemoryRegion* phys = memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(
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static_cast<u32>(phys_type), attr);
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ASSERT(phys != nullptr);
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ASSERT(phys->GetEndAddress() != 0);
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ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(phys->GetPairAddress(), size,
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static_cast<u32>(virt_type), attr));
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}
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} // namespace
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namespace Init {
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void SetupDevicePhysicalMemoryRegions(KMemoryLayout& memory_layout) {
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ASSERT(SetupPowerManagementControllerMemoryRegion(memory_layout));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x70019000, 0x1000, KMemoryRegionType_MemoryController | KMemoryRegionAttr_NoUserMap));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x7001C000, 0x1000, KMemoryRegionType_MemoryController0 | KMemoryRegionAttr_NoUserMap));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x7001D000, 0x1000, KMemoryRegionType_MemoryController1 | KMemoryRegionAttr_NoUserMap));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x50040000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x50041000, 0x1000,
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KMemoryRegionType_InterruptDistributor | KMemoryRegionAttr_ShouldKernelMap));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x50042000, 0x1000,
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KMemoryRegionType_InterruptCpuInterface | KMemoryRegionAttr_ShouldKernelMap));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x50043000, 0x1D000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
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// Map IRAM unconditionally, to support debug-logging-to-iram build config.
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x40000000, 0x40000, KMemoryRegionType_LegacyLpsIram | KMemoryRegionAttr_ShouldKernelMap));
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// Above firmware 2.0.0, prevent mapping the bpmp exception vectors or the ipatch region.
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x6000F000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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0x6001DC00, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap));
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}
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void SetupDramPhysicalMemoryRegions(KMemoryLayout& memory_layout) {
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const size_t intended_memory_size = KSystemControl::Init::GetIntendedMemorySize();
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const PAddr physical_memory_base_address =
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KSystemControl::Init::GetKernelPhysicalBaseAddress(DramPhysicalAddress);
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// Insert blocks into the tree.
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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physical_memory_base_address, intended_memory_size, KMemoryRegionType_Dram));
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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physical_memory_base_address, ReservedEarlyDramSize, KMemoryRegionType_DramReservedEarly));
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// Insert the KTrace block at the end of Dram, if KTrace is enabled.
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static_assert(!IsKTraceEnabled || KTraceBufferSize > 0);
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if constexpr (IsKTraceEnabled) {
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const PAddr ktrace_buffer_phys_addr =
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physical_memory_base_address + intended_memory_size - KTraceBufferSize;
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ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(
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ktrace_buffer_phys_addr, KTraceBufferSize, KMemoryRegionType_KernelTraceBuffer));
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}
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}
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void SetupPoolPartitionMemoryRegions(KMemoryLayout& memory_layout) {
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// Start by identifying the extents of the DRAM memory region.
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const auto dram_extents = memory_layout.GetMainMemoryPhysicalExtents();
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ASSERT(dram_extents.GetEndAddress() != 0);
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// Determine the end of the pool region.
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const u64 pool_end = dram_extents.GetEndAddress() - KTraceBufferSize;
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// Find the start of the kernel DRAM region.
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const KMemoryRegion* kernel_dram_region =
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memory_layout.GetPhysicalMemoryRegionTree().FindFirstDerived(
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KMemoryRegionType_DramKernelBase);
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ASSERT(kernel_dram_region != nullptr);
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const u64 kernel_dram_start = kernel_dram_region->GetAddress();
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ASSERT(Common::IsAligned(kernel_dram_start, CarveoutAlignment));
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// Find the start of the pool partitions region.
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const KMemoryRegion* pool_partitions_region =
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memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(
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KMemoryRegionType_DramPoolPartition, 0);
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ASSERT(pool_partitions_region != nullptr);
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const u64 pool_partitions_start = pool_partitions_region->GetAddress();
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// Setup the pool partition layouts.
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// On 5.0.0+, setup modern 4-pool-partition layout.
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// Get Application and Applet pool sizes.
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const size_t application_pool_size = KSystemControl::Init::GetApplicationPoolSize();
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const size_t applet_pool_size = KSystemControl::Init::GetAppletPoolSize();
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const size_t unsafe_system_pool_min_size =
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KSystemControl::Init::GetMinimumNonSecureSystemPoolSize();
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// Decide on starting addresses for our pools.
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const u64 application_pool_start = pool_end - application_pool_size;
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const u64 applet_pool_start = application_pool_start - applet_pool_size;
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const u64 unsafe_system_pool_start = std::min(
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kernel_dram_start + CarveoutSizeMax,
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Common::AlignDown(applet_pool_start - unsafe_system_pool_min_size, CarveoutAlignment));
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const size_t unsafe_system_pool_size = applet_pool_start - unsafe_system_pool_start;
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// We want to arrange application pool depending on where the middle of dram is.
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const u64 dram_midpoint = (dram_extents.GetAddress() + dram_extents.GetEndAddress()) / 2;
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u32 cur_pool_attr = 0;
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size_t total_overhead_size = 0;
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if (dram_extents.GetEndAddress() <= dram_midpoint || dram_midpoint <= application_pool_start) {
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InsertPoolPartitionRegionIntoBothTrees(
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memory_layout, application_pool_start, application_pool_size,
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KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
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cur_pool_attr);
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total_overhead_size +=
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KMemoryManager::CalculateManagementOverheadSize(application_pool_size);
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} else {
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const size_t first_application_pool_size = dram_midpoint - application_pool_start;
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const size_t second_application_pool_size =
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application_pool_start + application_pool_size - dram_midpoint;
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InsertPoolPartitionRegionIntoBothTrees(
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memory_layout, application_pool_start, first_application_pool_size,
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KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
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cur_pool_attr);
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InsertPoolPartitionRegionIntoBothTrees(
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memory_layout, dram_midpoint, second_application_pool_size,
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KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool,
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cur_pool_attr);
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total_overhead_size +=
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KMemoryManager::CalculateManagementOverheadSize(first_application_pool_size);
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total_overhead_size +=
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KMemoryManager::CalculateManagementOverheadSize(second_application_pool_size);
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}
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// Insert the applet pool.
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InsertPoolPartitionRegionIntoBothTrees(memory_layout, applet_pool_start, applet_pool_size,
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KMemoryRegionType_DramAppletPool,
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KMemoryRegionType_VirtualDramAppletPool, cur_pool_attr);
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total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(applet_pool_size);
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// Insert the nonsecure system pool.
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InsertPoolPartitionRegionIntoBothTrees(
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memory_layout, unsafe_system_pool_start, unsafe_system_pool_size,
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KMemoryRegionType_DramSystemNonSecurePool, KMemoryRegionType_VirtualDramSystemNonSecurePool,
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cur_pool_attr);
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total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(unsafe_system_pool_size);
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// Insert the pool management region.
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total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(
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(unsafe_system_pool_start - pool_partitions_start) - total_overhead_size);
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const u64 pool_management_start = unsafe_system_pool_start - total_overhead_size;
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const size_t pool_management_size = total_overhead_size;
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u32 pool_management_attr = 0;
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InsertPoolPartitionRegionIntoBothTrees(
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memory_layout, pool_management_start, pool_management_size,
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KMemoryRegionType_DramPoolManagement, KMemoryRegionType_VirtualDramPoolManagement,
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pool_management_attr);
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// Insert the system pool.
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const u64 system_pool_size = pool_management_start - pool_partitions_start;
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InsertPoolPartitionRegionIntoBothTrees(memory_layout, pool_partitions_start, system_pool_size,
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KMemoryRegionType_DramSystemPool,
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KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr);
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}
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} // namespace Init
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} // namespace Kernel
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