Split the core project into core/kernel/services as it's become a behemoth.

2023-11-14 20:44:10 +00:00
parent a134e924ff
commit b3bb5243e8
743 changed files with 2844 additions and 2742 deletions
@@ -0,0 +1,254 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <random>
+
+#include "common/literals.h"
+#include "common/settings.h"
+
+#include "kernel/board/nintendo/nx/k_system_control.h"
+#include "kernel/board/nintendo/nx/secure_monitor.h"
+#include "kernel/k_memory_manager.h"
+#include "kernel/k_page_table.h"
+#include "kernel/k_trace.h"
+#include "kernel/kernel.h"
+#include "kernel/svc_results.h"
+
+namespace Kernel::Board::Nintendo::Nx {
+
+namespace impl {
+
+using namespace Common::Literals;
+
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeVi = 0x2280 * 4_KiB;
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeViFatal = 0x200 * 4_KiB;
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeNvservices = 0x704 * 4_KiB;
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeMisc = 0x80 * 4_KiB;
+
+} // namespace impl
+
+constexpr const std::size_t RequiredNonSecureSystemMemorySize =
+    impl::RequiredNonSecureSystemMemorySizeVi + impl::RequiredNonSecureSystemMemorySizeNvservices +
+    impl::RequiredNonSecureSystemMemorySizeMisc;
+
+constexpr const std::size_t RequiredNonSecureSystemMemorySizeWithFatal =
+    RequiredNonSecureSystemMemorySize + impl::RequiredNonSecureSystemMemorySizeViFatal;
+
+constexpr const std::size_t SecureAlignment = 128_KiB;
+
+namespace {
+
+using namespace Common::Literals;
+
+u32 GetMemorySizeForInit() {
+    switch (Settings::values.memory_layout_mode.GetValue()) {
+    case Settings::MemoryLayout::Memory_4Gb:
+        return Smc::MemorySize_4GB;
+    case Settings::MemoryLayout::Memory_6Gb:
+        return Smc::MemorySize_6GB;
+    case Settings::MemoryLayout::Memory_8Gb:
+        return Smc::MemorySize_8GB;
+    }
+    return Smc::MemorySize_4GB;
+}
+
+Smc::MemoryArrangement GetMemoryArrangeForInit() {
+    switch (Settings::values.memory_layout_mode.GetValue()) {
+    case Settings::MemoryLayout::Memory_4Gb:
+        return Smc::MemoryArrangement_4GB;
+    case Settings::MemoryLayout::Memory_6Gb:
+        return Smc::MemoryArrangement_6GB;
+    case Settings::MemoryLayout::Memory_8Gb:
+        return Smc::MemoryArrangement_8GB;
+    }
+    return Smc::MemoryArrangement_4GB;
+}
+} // namespace
+
+size_t KSystemControl::Init::GetRealMemorySize() {
+    return GetIntendedMemorySize();
+}
+
+// Initialization.
+size_t KSystemControl::Init::GetIntendedMemorySize() {
+    switch (GetMemorySizeForInit()) {
+    case Smc::MemorySize_4GB:
+    default: // All invalid modes should go to 4GB.
+        return 4_GiB;
+    case Smc::MemorySize_6GB:
+        return 6_GiB;
+    case Smc::MemorySize_8GB:
+        return 8_GiB;
+    }
+}
+
+KPhysicalAddress KSystemControl::Init::GetKernelPhysicalBaseAddress(KPhysicalAddress base_address) {
+    const size_t real_dram_size = KSystemControl::Init::GetRealMemorySize();
+    const size_t intended_dram_size = KSystemControl::Init::GetIntendedMemorySize();
+    if (intended_dram_size * 2 < real_dram_size) {
+        return base_address;
+    } else {
+        return base_address + ((real_dram_size - intended_dram_size) / 2);
+    }
+}
+
+bool KSystemControl::Init::ShouldIncreaseThreadResourceLimit() {
+    return true;
+}
+
+std::size_t KSystemControl::Init::GetApplicationPoolSize() {
+    // Get the base pool size.
+    const size_t base_pool_size = []() -> size_t {
+        switch (GetMemoryArrangeForInit()) {
+        case Smc::MemoryArrangement_4GB:
+        default:
+            return 3285_MiB;
+        case Smc::MemoryArrangement_4GBForAppletDev:
+            return 2048_MiB;
+        case Smc::MemoryArrangement_4GBForSystemDev:
+            return 3285_MiB;
+        case Smc::MemoryArrangement_6GB:
+            return 4916_MiB;
+        case Smc::MemoryArrangement_6GBForAppletDev:
+            return 3285_MiB;
+        case Smc::MemoryArrangement_8GB:
+            // Real kernel sets this to 4916_MiB. We are not debugging applets.
+            return 6547_MiB;
+        }
+    }();
+
+    // Return (possibly) adjusted size.
+    return base_pool_size;
+}
+
+size_t KSystemControl::Init::GetAppletPoolSize() {
+    // Get the base pool size.
+    const size_t base_pool_size = []() -> size_t {
+        switch (GetMemoryArrangeForInit()) {
+        case Smc::MemoryArrangement_4GB:
+        default:
+            return 507_MiB;
+        case Smc::MemoryArrangement_4GBForAppletDev:
+            return 1554_MiB;
+        case Smc::MemoryArrangement_4GBForSystemDev:
+            return 448_MiB;
+        case Smc::MemoryArrangement_6GB:
+            return 562_MiB;
+        case Smc::MemoryArrangement_6GBForAppletDev:
+            return 2193_MiB;
+        case Smc::MemoryArrangement_8GB:
+            //! Real kernel sets this to 2193_MiB. We are not debugging applets.
+            return 562_MiB;
+        }
+    }();
+
+    // Return (possibly) adjusted size.
+    constexpr size_t ExtraSystemMemoryForAtmosphere = 33_MiB;
+    return base_pool_size - ExtraSystemMemoryForAtmosphere - KTraceBufferSize;
+}
+
+size_t KSystemControl::Init::GetMinimumNonSecureSystemPoolSize() {
+    // Verify that our minimum is at least as large as Nintendo's.
+    constexpr size_t MinimumSizeWithFatal = RequiredNonSecureSystemMemorySizeWithFatal;
+    static_assert(MinimumSizeWithFatal >= 0x2C04000);
+
+    constexpr size_t MinimumSizeWithoutFatal = RequiredNonSecureSystemMemorySize;
+    static_assert(MinimumSizeWithoutFatal >= 0x2A00000);
+
+    return MinimumSizeWithFatal;
+}
+
+namespace {
+template <typename F>
+u64 GenerateUniformRange(u64 min, u64 max, F f) {
+    // Handle the case where the difference is too large to represent.
+    if (max == std::numeric_limits<u64>::max() && min == std::numeric_limits<u64>::min()) {
+        return f();
+    }
+
+    // Iterate until we get a value in range.
+    const u64 range_size = ((max + 1) - min);
+    const u64 effective_max = (std::numeric_limits<u64>::max() / range_size) * range_size;
+    while (true) {
+        if (const u64 rnd = f(); rnd < effective_max) {
+            return min + (rnd % range_size);
+        }
+    }
+}
+
+} // Anonymous namespace
+
+u64 KSystemControl::GenerateRandomU64() {
+    std::random_device device;
+    std::mt19937 gen(device());
+    std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
+    return distribution(gen);
+}
+
+u64 KSystemControl::GenerateRandomRange(u64 min, u64 max) {
+    return GenerateUniformRange(min, max, GenerateRandomU64);
+}
+
+size_t KSystemControl::CalculateRequiredSecureMemorySize(size_t size, u32 pool) {
+    if (pool == static_cast<u32>(KMemoryManager::Pool::Applet)) {
+        return 0;
+    } else {
+        // return KSystemControlBase::CalculateRequiredSecureMemorySize(size, pool);
+        return size;
+    }
+}
+
+Result KSystemControl::AllocateSecureMemory(KernelCore& kernel, KVirtualAddress* out, size_t size,
+                                            u32 pool) {
+    // Applet secure memory is handled separately.
+    UNIMPLEMENTED_IF(pool == static_cast<u32>(KMemoryManager::Pool::Applet));
+
+    // Ensure the size is aligned.
+    const size_t alignment =
+        (pool == static_cast<u32>(KMemoryManager::Pool::System) ? PageSize : SecureAlignment);
+    R_UNLESS(Common::IsAligned(size, alignment), ResultInvalidSize);
+
+    // Allocate the memory.
+    const size_t num_pages = size / PageSize;
+    const KPhysicalAddress paddr = kernel.MemoryManager().AllocateAndOpenContinuous(
+        num_pages, alignment / PageSize,
+        KMemoryManager::EncodeOption(static_cast<KMemoryManager::Pool>(pool),
+                                     KMemoryManager::Direction::FromFront));
+    R_UNLESS(paddr != 0, ResultOutOfMemory);
+
+    // Ensure we don't leak references to the memory on error.
+    ON_RESULT_FAILURE {
+        kernel.MemoryManager().Close(paddr, num_pages);
+    };
+
+    // We succeeded.
+    *out = KPageTable::GetHeapVirtualAddress(kernel, paddr);
+    R_SUCCEED();
+}
+
+void KSystemControl::FreeSecureMemory(KernelCore& kernel, KVirtualAddress address, size_t size,
+                                      u32 pool) {
+    // Applet secure memory is handled separately.
+    UNIMPLEMENTED_IF(pool == static_cast<u32>(KMemoryManager::Pool::Applet));
+
+    // Ensure the size is aligned.
+    const size_t alignment =
+        (pool == static_cast<u32>(KMemoryManager::Pool::System) ? PageSize : SecureAlignment);
+    ASSERT(Common::IsAligned(GetInteger(address), alignment));
+    ASSERT(Common::IsAligned(size, alignment));
+
+    // Close the secure region's pages.
+    kernel.MemoryManager().Close(KPageTable::GetHeapPhysicalAddress(kernel, address),
+                                 size / PageSize);
+}
+
+// Insecure Memory.
+KResourceLimit* KSystemControl::GetInsecureMemoryResourceLimit(KernelCore& kernel) {
+    return kernel.GetSystemResourceLimit();
+}
+
+u32 KSystemControl::GetInsecureMemoryPool() {
+    return static_cast<u32>(KMemoryManager::Pool::SystemNonSecure);
+}
+
+} // namespace Kernel::Board::Nintendo::Nx