3 files changed, 23 insertions, 12 deletions

diff --git a/src/core/hle/kernel/k_memory_layout.cpp b/src/core/hle/kernel/k_memory_layout.cpp
index 55dc296d0..72c3ee4b7 100644
--- a/src/core/hle/kernel/k_memory_layout.cpp
+++ b/src/core/hle/kernel/k_memory_layout.cpp
@@ -153,13 +153,9 @@ void KMemoryLayout::InitializeLinearMemoryRegionTrees(PAddr aligned_linear_phys_
     }
 }
 
-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;
+size_t KMemoryLayout::GetResourceRegionSizeForInit(bool use_extra_resource) {
+    return KernelResourceSize + KSystemControl::SecureAppletMemorySize +
+           (use_extra_resource ? KernelSlabHeapAdditionalSize + KernelPageBufferAdditionalSize : 0);
 }
 
 } // namespace Kernel
diff --git a/src/core/hle/kernel/k_memory_layout.h b/src/core/hle/kernel/k_memory_layout.h
index 884fc623a..fd6e1d3e6 100644
--- a/src/core/hle/kernel/k_memory_layout.h
+++ b/src/core/hle/kernel/k_memory_layout.h
@@ -60,10 +60,12 @@ constexpr std::size_t KernelSlabHeapGapsSizeMax = 2_MiB - 64_KiB;
 constexpr std::size_t KernelSlabHeapSize = KernelSlabHeapDataSize + KernelSlabHeapGapsSizeMax;
 
 // NOTE: This is calculated from KThread slab counts, assuming KThread size <= 0x860.
-constexpr std::size_t KernelSlabHeapAdditionalSize = 0x68000;
+constexpr size_t KernelPageBufferHeapSize = 0x3E0000;
+constexpr size_t KernelSlabHeapAdditionalSize = 0x148000;
+constexpr size_t KernelPageBufferAdditionalSize = 0x33C000;
 
-constexpr std::size_t KernelResourceSize =
-    KernelPageTableHeapSize + KernelInitialPageHeapSize + KernelSlabHeapSize;
+constexpr std::size_t KernelResourceSize = KernelPageTableHeapSize + KernelInitialPageHeapSize +
+                                           KernelSlabHeapSize + KernelPageBufferHeapSize;
 
 constexpr bool IsKernelAddressKey(VAddr key) {
     return KernelVirtualAddressSpaceBase <= key && key <= KernelVirtualAddressSpaceLast;
@@ -168,6 +170,11 @@ public:
             KMemoryRegionType_VirtualDramKernelTraceBuffer));
     }
 
+    const KMemoryRegion& GetSecureAppletMemoryRegion() {
+        return Dereference(GetVirtualMemoryRegionTree().FindByType(
+            KMemoryRegionType_VirtualDramKernelSecureAppletMemory));
+    }
+
     const KMemoryRegion& GetVirtualLinearRegion(VAddr address) const {
         return Dereference(FindVirtualLinear(address));
     }
@@ -229,7 +236,7 @@ public:
 
     void InitializeLinearMemoryRegionTrees(PAddr aligned_linear_phys_start,
                                            VAddr linear_virtual_start);
-    static size_t GetResourceRegionSizeForInit();
+    static size_t GetResourceRegionSizeForInit(bool use_extra_resource);
 
     auto GetKernelRegionExtents() const {
         return GetVirtualMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_Kernel);
@@ -279,6 +286,10 @@ public:
         return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
             KMemoryRegionType_DramKernelSlab);
     }
+    auto GetKernelSecureAppletMemoryRegionPhysicalExtents() {
+        return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
+            KMemoryRegionType_DramKernelSecureAppletMemory);
+    }
     auto GetKernelPageTableHeapRegionPhysicalExtents() const {
         return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(
             KMemoryRegionType_DramKernelPtHeap);
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index fdc774e30..fc94cb22c 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -454,6 +454,9 @@ struct KernelCore::Impl {
         ASSERT(memory_layout->GetVirtualMemoryRegionTree().Insert(
             misc_region_start, misc_region_size, KMemoryRegionType_KernelMisc));
 
+        // Determine if we'll use extra thread resources.
+        const bool use_extra_resources = KSystemControl::Init::ShouldIncreaseThreadResourceLimit();
+
         // Setup the stack region.
         constexpr size_t StackRegionSize = 14_MiB;
         constexpr size_t StackRegionAlign = KernelAslrAlignment;
@@ -464,7 +467,8 @@ struct KernelCore::Impl {
             stack_region_start, StackRegionSize, KMemoryRegionType_KernelStack));
 
         // Determine the size of the resource region.
-        const size_t resource_region_size = memory_layout->GetResourceRegionSizeForInit();
+        const size_t resource_region_size =
+            memory_layout->GetResourceRegionSizeForInit(use_extra_resources);
 
         // Determine the size of the slab region.
         const size_t slab_region_size =