From 273f4a87ae961793ed3aa6f06e3d230a7ebbeb72 Mon Sep 17 00:00:00 2001 From: Michael Scire Date: Mon, 25 Oct 2021 15:07:24 -0700 Subject: [PATCH] kern: add (and use) generic KSystemControlBase --- .../arch/arm64/kern_secure_monitor_base.hpp | 95 ++++ .../nintendo/nx/kern_k_memory_layout.hpp | 3 + .../nintendo/nx/kern_k_system_control.hpp | 31 +- .../board/qemu/virt/kern_k_memory_layout.hpp | 3 + .../board/qemu/virt/kern_k_system_control.hpp | 61 +-- .../mesosphere/kern_k_memory_layout.hpp | 6 +- .../mesosphere/kern_k_system_control_base.hpp | 110 +++++ .../mesosphere/kern_k_target_system.hpp | 1 + .../mesosphere/kern_select_system_control.hpp | 16 + .../nintendo/nx/kern_k_device_page_table.cpp | 4 +- .../nintendo/nx/kern_k_sleep_manager.cpp | 2 +- .../nintendo/nx/kern_k_system_control.cpp | 171 ++----- .../board/nintendo/nx/kern_secure_monitor.cpp | 217 ++------- .../board/nintendo/nx/kern_secure_monitor.hpp | 9 +- .../board/qemu/virt/kern_k_system_control.cpp | 439 +----------------- .../board/qemu/virt/kern_secure_monitor.cpp | 100 ---- .../board/qemu/virt/kern_secure_monitor.hpp | 8 - ...kern_k_memory_layout.board.nintendo_nx.cpp | 36 +- .../kern_k_memory_layout.board.qemu_virt.cpp | 65 +-- .../libmesosphere/source/kern_k_process.cpp | 2 +- .../source/kern_k_system_control_base.cpp | 295 ++++++++++++ .../libmesosphere/source/kern_kernel.cpp | 16 +- .../source/svc/kern_svc_cache.cpp | 2 +- 23 files changed, 704 insertions(+), 988 deletions(-) create mode 100644 libraries/libmesosphere/include/mesosphere/arch/arm64/kern_secure_monitor_base.hpp create mode 100644 libraries/libmesosphere/include/mesosphere/kern_k_system_control_base.hpp create mode 100644 libraries/libmesosphere/source/kern_k_system_control_base.cpp diff --git a/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_secure_monitor_base.hpp b/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_secure_monitor_base.hpp new file mode 100644 index 000000000..76ec13937 --- /dev/null +++ b/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_secure_monitor_base.hpp @@ -0,0 +1,95 @@ +/* + * Copyright (c) Atmosphère-NX + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#pragma once +#include +#include +#include + +namespace ams::kern::arch::arm64::smc { + + template + void SecureMonitorCall(u64 *buf) { + /* Load arguments into registers. */ + register u64 x0 asm("x0") = buf[0]; + register u64 x1 asm("x1") = buf[1]; + register u64 x2 asm("x2") = buf[2]; + register u64 x3 asm("x3") = buf[3]; + register u64 x4 asm("x4") = buf[4]; + register u64 x5 asm("x5") = buf[5]; + register u64 x6 asm("x6") = buf[6]; + register u64 x7 asm("x7") = buf[7]; + + /* Perform the call. */ + if constexpr (DisableInterrupt) { + KScopedInterruptDisable di; + + /* Backup the current thread pointer. */ + const uintptr_t current_thread_pointer_value = cpu::GetCurrentThreadPointerValue(); + + __asm__ __volatile__("smc %c[smc_id]" + : "+r"(x0), "+r"(x1), "+r"(x2), "+r"(x3), "+r"(x4), "+r"(x5), "+r"(x6), "+r"(x7) + : [smc_id]"i"(SmcId) + : "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "cc", "memory" + ); + + /* Restore the current thread pointer into X18. */ + cpu::SetCurrentThreadPointerValue(current_thread_pointer_value); + } else { + /* Backup the current thread pointer. */ + const uintptr_t current_thread_pointer_value = cpu::GetCurrentThreadPointerValue(); + + __asm__ __volatile__("smc %c[smc_id]" + : "+r"(x0), "+r"(x1), "+r"(x2), "+r"(x3), "+r"(x4), "+r"(x5), "+r"(x6), "+r"(x7) + : [smc_id]"i"(SmcId) + : "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "cc", "memory" + ); + + /* Restore the current thread pointer into X18. */ + cpu::SetCurrentThreadPointerValue(current_thread_pointer_value); + } + + /* Store arguments to output. */ + buf[0] = x0; + buf[1] = x1; + buf[2] = x2; + buf[3] = x3; + buf[4] = x4; + buf[5] = x5; + buf[6] = x6; + buf[7] = x7; + } + + enum PsciFunction { + PsciFunction_CpuSuspend = 0xC4000001, + PsciFunction_CpuOff = 0x84000002, + PsciFunction_CpuOn = 0xC4000003, + }; + + template + u64 PsciCall(PsciFunction function, u64 x1 = 0, u64 x2 = 0, u64 x3 = 0, u64 x4 = 0, u64 x5 = 0, u64 x6 = 0, u64 x7 = 0) { + ams::svc::lp64::SecureMonitorArguments args = { { function, x1, x2, x3, x4, x5, x6, x7 } }; + + SecureMonitorCall(args.r); + + return args.r[0]; + } + + template + u64 CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { + return PsciCall(PsciFunction_CpuOn, core_id, entrypoint, arg); + } + +} diff --git a/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_memory_layout.hpp b/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_memory_layout.hpp index 003f74570..b12e8d02e 100644 --- a/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_memory_layout.hpp +++ b/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_memory_layout.hpp @@ -15,9 +15,12 @@ */ #pragma once #include +#include namespace ams::kern { + constexpr inline KPhysicalAddress MainMemoryAddress = 0x80000000; + constexpr inline size_t MainMemorySize = 4_GB; constexpr inline size_t MainMemorySizeMax = 8_GB; diff --git a/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_system_control.hpp b/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_system_control.hpp index b7c2f1697..2349e3a99 100644 --- a/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_system_control.hpp +++ b/libraries/libmesosphere/include/mesosphere/board/nintendo/nx/kern_k_system_control.hpp @@ -15,23 +15,17 @@ */ #pragma once #include - -namespace ams::kern { - - struct InitialProcessBinaryLayout; - -} +#include namespace ams::kern::board::nintendo::nx { - class KSystemControl { + class KSystemControl : public KSystemControlBase { public: - class Init { + class Init : public KSystemControlBase::Init { public: /* Initialization. */ + static size_t GetRealMemorySize(); static size_t GetIntendedMemorySize(); - static KPhysicalAddress GetKernelPhysicalBaseAddress(uintptr_t base_address); - static void GetInitialProcessBinaryLayout(InitialProcessBinaryLayout *out); static bool ShouldIncreaseThreadResourceLimit(); static void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg); static size_t GetApplicationPoolSize(); @@ -40,7 +34,7 @@ namespace ams::kern::board::nintendo::nx { static u8 GetDebugLogUartPort(); /* Randomness. */ - static void GenerateRandomBytes(void *dst, size_t size); + static void GenerateRandom(u64 *dst, size_t count); static u64 GenerateRandomRange(u64 min, u64 max); }; public: @@ -50,7 +44,7 @@ namespace ams::kern::board::nintendo::nx { static NOINLINE u32 GetCreateProcessMemoryPool(); /* Randomness. */ - static void GenerateRandomBytes(void *dst, size_t size); + static void GenerateRandom(u64 *dst, size_t count); static u64 GenerateRandomRange(u64 min, u64 max); static u64 GenerateRandomU64(); @@ -58,23 +52,12 @@ namespace ams::kern::board::nintendo::nx { static void ReadWriteRegisterPrivileged(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value); static Result ReadWriteRegister(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value); - static ALWAYS_INLINE u32 ReadRegisterPrivileged(ams::svc::PhysicalAddress address) { - u32 v; - ReadWriteRegisterPrivileged(std::addressof(v), address, 0x00000000u, 0); - return v; - } - - static ALWAYS_INLINE void WriteRegisterPrivileged(ams::svc::PhysicalAddress address, u32 value) { - u32 v; - ReadWriteRegisterPrivileged(std::addressof(v), address, 0xFFFFFFFFu, value); - } - /* Power management. */ static void SleepSystem(); static NORETURN void StopSystem(void *arg = nullptr); /* User access. */ - static void CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args); + static void CallSecureMonitorFromUserImpl(ams::svc::lp64::SecureMonitorArguments *args); /* Secure Memory. */ static size_t CalculateRequiredSecureMemorySize(size_t size, u32 pool); diff --git a/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_memory_layout.hpp b/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_memory_layout.hpp index 003f74570..b18ec45c7 100644 --- a/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_memory_layout.hpp +++ b/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_memory_layout.hpp @@ -15,9 +15,12 @@ */ #pragma once #include +#include namespace ams::kern { + constexpr inline KPhysicalAddress MainMemoryAddress = 0x40000000; + constexpr inline size_t MainMemorySize = 4_GB; constexpr inline size_t MainMemorySizeMax = 8_GB; diff --git a/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_system_control.hpp b/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_system_control.hpp index d1d1fa212..78a94fa18 100644 --- a/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_system_control.hpp +++ b/libraries/libmesosphere/include/mesosphere/board/qemu/virt/kern_k_system_control.hpp @@ -15,71 +15,14 @@ */ #pragma once #include - -namespace ams::kern { - - struct InitialProcessBinaryLayout; - -} +#include namespace ams::kern::board::qemu::virt { - class KSystemControl { + class KSystemControl : public KSystemControlBase { public: - class Init { - public: - /* Initialization. */ - static size_t GetIntendedMemorySize(); - static KPhysicalAddress GetKernelPhysicalBaseAddress(uintptr_t base_address); - static void GetInitialProcessBinaryLayout(InitialProcessBinaryLayout *out); - static bool ShouldIncreaseThreadResourceLimit(); - static void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg); - static size_t GetApplicationPoolSize(); - static size_t GetAppletPoolSize(); - static size_t GetMinimumNonSecureSystemPoolSize(); - static u8 GetDebugLogUartPort(); - - /* Randomness. */ - static void GenerateRandomBytes(void *dst, size_t size); - static u64 GenerateRandomRange(u64 min, u64 max); - }; - public: - /* Initialization. */ - static NOINLINE void InitializePhase1(); - static NOINLINE void InitializePhase2(); - static NOINLINE u32 GetCreateProcessMemoryPool(); - - /* Randomness. */ - static void GenerateRandomBytes(void *dst, size_t size); - static u64 GenerateRandomRange(u64 min, u64 max); - static u64 GenerateRandomU64(); - - /* Privileged Access. */ - static void ReadWriteRegisterPrivileged(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value); - static Result ReadWriteRegister(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value); - - static ALWAYS_INLINE u32 ReadRegisterPrivileged(ams::svc::PhysicalAddress address) { - u32 v; - ReadWriteRegisterPrivileged(std::addressof(v), address, 0x00000000u, 0); - return v; - } - - static ALWAYS_INLINE void WriteRegisterPrivileged(ams::svc::PhysicalAddress address, u32 value) { - u32 v; - ReadWriteRegisterPrivileged(std::addressof(v), address, 0xFFFFFFFFu, value); - } - - /* Power management. */ - static void SleepSystem(); - static NORETURN void StopSystem(void *arg = nullptr); - /* User access. */ static void CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args); - - /* Secure Memory. */ - static size_t CalculateRequiredSecureMemorySize(size_t size, u32 pool); - static Result AllocateSecureMemory(KVirtualAddress *out, size_t size, u32 pool); - static void FreeSecureMemory(KVirtualAddress address, size_t size, u32 pool); }; } \ No newline at end of file diff --git a/libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp b/libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp index 5ac2a5908..34d3d2e6a 100644 --- a/libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp +++ b/libraries/libmesosphere/include/mesosphere/kern_k_memory_layout.hpp @@ -212,13 +212,17 @@ namespace ams::kern { static NOINLINE auto GetKernelPageTableHeapRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramKernelPtHeap); } static NOINLINE auto GetKernelInitPageTableRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramKernelInitPt); } - static NOINLINE auto GetKernelPoolManagementRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramPoolManagement); } static NOINLINE auto GetKernelPoolPartitionRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramPoolPartition); } + static NOINLINE auto GetKernelPoolManagementRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramPoolManagement); } static NOINLINE auto GetKernelSystemPoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramSystemPool); } static NOINLINE auto GetKernelSystemNonSecurePoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramSystemNonSecurePool); } static NOINLINE auto GetKernelAppletPoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramAppletPool); } static NOINLINE auto GetKernelApplicationPoolRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_DramApplicationPool); } + static NOINLINE bool HasKernelSystemNonSecurePoolRegion() { return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_DramSystemNonSecurePool) != nullptr; } + static NOINLINE bool HasKernelAppletPoolRegion() { return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_DramAppletPool) != nullptr; } + static NOINLINE bool HasKernelApplicationPoolRegion() { return GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_DramApplicationPool) != nullptr; } + static NOINLINE auto GetKernelTraceBufferRegionPhysicalExtents() { return GetPhysicalMemoryRegionTree().GetDerivedRegionExtents(KMemoryRegionType_KernelTraceBuffer); } }; diff --git a/libraries/libmesosphere/include/mesosphere/kern_k_system_control_base.hpp b/libraries/libmesosphere/include/mesosphere/kern_k_system_control_base.hpp new file mode 100644 index 000000000..2abfc948a --- /dev/null +++ b/libraries/libmesosphere/include/mesosphere/kern_k_system_control_base.hpp @@ -0,0 +1,110 @@ +/* + * Copyright (c) Atmosphère-NX + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#pragma once +#include +#include + +namespace ams::kern { + + struct InitialProcessBinaryLayout; + +} + +namespace ams::kern { + + class KSystemControlBase { + protected: + /* Nintendo uses std::mt19937_t for randomness. */ + /* To save space (and because mt19337_t isn't secure anyway), */ + /* We will use TinyMT. */ + static constinit inline bool s_initialized_random_generator; + static constinit inline util::TinyMT s_random_generator{util::ConstantInitialize}; + static constinit inline KSpinLock s_random_lock; + public: + class Init { + public: + /* Initialization. */ + static size_t GetRealMemorySize(); + static size_t GetIntendedMemorySize(); + static KPhysicalAddress GetKernelPhysicalBaseAddress(KPhysicalAddress base_address); + static void GetInitialProcessBinaryLayout(InitialProcessBinaryLayout *out); + static bool ShouldIncreaseThreadResourceLimit(); + static void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg); + static size_t GetApplicationPoolSize(); + static size_t GetAppletPoolSize(); + static size_t GetMinimumNonSecureSystemPoolSize(); + static u8 GetDebugLogUartPort(); + + /* Randomness. */ + static void GenerateRandom(u64 *dst, size_t count); + static u64 GenerateRandomRange(u64 min, u64 max); + }; + public: + /* Initialization. */ + static NOINLINE void InitializePhase1(bool skip_target_system = false); + static NOINLINE void InitializePhase2(); + static NOINLINE u32 GetCreateProcessMemoryPool(); + + /* Randomness. */ + static void GenerateRandom(u64 *dst, size_t count); + static u64 GenerateRandomRange(u64 min, u64 max); + static u64 GenerateRandomU64(); + + /* Register access Access. */ + static Result ReadWriteRegister(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value); + static void ReadWriteRegisterPrivileged(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value); + + static u32 ReadRegisterPrivileged(ams::svc::PhysicalAddress address); + static void WriteRegisterPrivileged(ams::svc::PhysicalAddress address, u32 value); + + /* Power management. */ + static void SleepSystem(); + static NORETURN void StopSystem(void *arg = nullptr); + + /* User access. */ + #if defined(ATMOSPHERE_ARCH_ARM64) + static void CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args); + #endif + + /* Secure Memory. */ + static size_t CalculateRequiredSecureMemorySize(size_t size, u32 pool); + static Result AllocateSecureMemory(KVirtualAddress *out, size_t size, u32 pool); + static void FreeSecureMemory(KVirtualAddress address, size_t size, u32 pool); + protected: + template + static ALWAYS_INLINE u64 GenerateUniformRange(u64 min, u64 max, F f) { + /* Handle the case where the difference is too large to represent. */ + if (max == std::numeric_limits::max() && min == std::numeric_limits::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::max() / range_size) * range_size; + while (true) { + if (const u64 rnd = f(); rnd < effective_max) { + return min + (rnd % range_size); + } + } + } + + /* User access. */ + #if defined(ATMOSPHERE_ARCH_ARM64) + static void CallSecureMonitorFromUserImpl(ams::svc::lp64::SecureMonitorArguments *args); + #endif + }; + +} \ No newline at end of file diff --git a/libraries/libmesosphere/include/mesosphere/kern_k_target_system.hpp b/libraries/libmesosphere/include/mesosphere/kern_k_target_system.hpp index bcb53ec20..87b72c0fa 100644 --- a/libraries/libmesosphere/include/mesosphere/kern_k_target_system.hpp +++ b/libraries/libmesosphere/include/mesosphere/kern_k_target_system.hpp @@ -21,6 +21,7 @@ namespace ams::kern { class KTargetSystem { private: + friend class KSystemControlBase; friend class KSystemControl; private: static inline constinit bool s_is_debug_mode; diff --git a/libraries/libmesosphere/include/mesosphere/kern_select_system_control.hpp b/libraries/libmesosphere/include/mesosphere/kern_select_system_control.hpp index 0ea19592d..cc0edc55c 100644 --- a/libraries/libmesosphere/include/mesosphere/kern_select_system_control.hpp +++ b/libraries/libmesosphere/include/mesosphere/kern_select_system_control.hpp @@ -15,6 +15,7 @@ */ #pragma once #include +#include #ifdef ATMOSPHERE_BOARD_NINTENDO_NX #include @@ -33,3 +34,18 @@ #else #error "Unknown board for KSystemControl" #endif + +namespace ams::kern { + + ALWAYS_INLINE u32 KSystemControlBase::ReadRegisterPrivileged(ams::svc::PhysicalAddress address) { + u32 v; + KSystemControl::ReadWriteRegisterPrivileged(std::addressof(v), address, 0x00000000u, 0); + return v; + } + + ALWAYS_INLINE void KSystemControlBase::WriteRegisterPrivileged(ams::svc::PhysicalAddress address, u32 value) { + u32 v; + KSystemControl::ReadWriteRegisterPrivileged(std::addressof(v), address, 0xFFFFFFFFu, value); + } + +} diff --git a/libraries/libmesosphere/source/board/nintendo/nx/kern_k_device_page_table.cpp b/libraries/libmesosphere/source/board/nintendo/nx/kern_k_device_page_table.cpp index 1a244b362..6927c714c 100644 --- a/libraries/libmesosphere/source/board/nintendo/nx/kern_k_device_page_table.cpp +++ b/libraries/libmesosphere/source/board/nintendo/nx/kern_k_device_page_table.cpp @@ -1130,7 +1130,7 @@ namespace ams::kern::board::nintendo::nx { size_t cur_size; { /* Get the current contiguous range. */ - KPageTableBase::MemoryRange contig_range = {}; + KPageTableBase::MemoryRange contig_range = { .address = Null, .size = 0 }; R_TRY(page_table->OpenMemoryRangeForMapDeviceAddressSpace(std::addressof(contig_range), process_address + mapped_size, size - mapped_size, ConvertToKMemoryPermission(device_perm), is_aligned)); /* Ensure we close the range when we're done. */ @@ -1288,7 +1288,7 @@ namespace ams::kern::board::nintendo::nx { MESOSPHERE_ASSERT(((device_address + size - 1) & ~DeviceVirtualAddressMask) == 0); /* We need to traverse the ranges that make up our mapping, to make sure they're all good. Start by getting a contiguous range. */ - KPageTableBase::MemoryRange contig_range = {}; + KPageTableBase::MemoryRange contig_range = { .address = Null, .size = 0 }; if (R_FAILED(page_table->OpenMemoryRangeForUnmapDeviceAddressSpace(std::addressof(contig_range), process_address, size))) { return false; } diff --git a/libraries/libmesosphere/source/board/nintendo/nx/kern_k_sleep_manager.cpp b/libraries/libmesosphere/source/board/nintendo/nx/kern_k_sleep_manager.cpp index 2a08929cb..713a8e0c6 100644 --- a/libraries/libmesosphere/source/board/nintendo/nx/kern_k_sleep_manager.cpp +++ b/libraries/libmesosphere/source/board/nintendo/nx/kern_k_sleep_manager.cpp @@ -73,7 +73,7 @@ namespace ams::kern::board::nintendo::nx { void PowerOnCpu(int core_id, KPhysicalAddress entry_phys_addr, u64 context_id) { /* Request the secure monitor power on the core. */ - smc::CpuOn(cpu::MultiprocessorAffinityRegisterAccessor().GetCpuOnArgument() | core_id, GetInteger(entry_phys_addr), context_id); + ::ams::kern::arch::arm64::smc::CpuOn(cpu::MultiprocessorAffinityRegisterAccessor().GetCpuOnArgument() | core_id, GetInteger(entry_phys_addr), context_id); } void WaitOtherCpuPowerOff() { diff --git a/libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp b/libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp index 3f91ecfb7..ed1fc14b9 100644 --- a/libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp +++ b/libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp @@ -21,8 +21,7 @@ namespace ams::kern::board::nintendo::nx { namespace { - constexpr uintptr_t DramPhysicalAddress = 0x80000000; - constexpr size_t SecureAlignment = 128_KB; + constexpr size_t SecureAlignment = 128_KB; /* Global variables for panic. */ constinit bool g_call_smc_on_panic; @@ -38,22 +37,6 @@ namespace ams::kern::board::nintendo::nx { constinit KPhysicalAddress g_secure_region_phys_addr = Null; constinit size_t g_secure_region_size = 0; - /* Global variables for randomness. */ - /* Nintendo uses std::mt19937_t for randomness. */ - /* To save space (and because mt19337_t isn't secure anyway), */ - /* We will use TinyMT. */ - constinit bool g_initialized_random_generator; - constinit util::TinyMT g_random_generator{util::ConstantInitialize}; - constinit KSpinLock g_random_lock; - - ALWAYS_INLINE size_t GetRealMemorySizeForInit() { - /* TODO: Move this into a header for the MC in general. */ - constexpr u32 MemoryControllerConfigurationRegister = 0x70019050; - u32 config_value; - MESOSPHERE_INIT_ABORT_UNLESS(smc::init::ReadWriteRegister(&config_value, MemoryControllerConfigurationRegister, 0, 0)); - return static_cast(config_value & 0x3FFF) << 20; - } - ALWAYS_INLINE util::BitPack32 GetKernelConfigurationForInit() { u64 value = 0; smc::init::GetConfig(&value, 1, smc::ConfigItem::KernelConfiguration); @@ -86,7 +69,7 @@ namespace ams::kern::board::nintendo::nx { ALWAYS_INLINE u64 GenerateRandomU64ForInit() { u64 value; - smc::init::GenerateRandomBytes(&value, sizeof(value)); + smc::init::GenerateRandomBytes(std::addressof(value), sizeof(value)); return value; } @@ -96,27 +79,6 @@ namespace ams::kern::board::nintendo::nx { return value; } - ALWAYS_INLINE u64 GenerateRandomU64FromGenerator() { - return g_random_generator.GenerateRandomU64(); - } - - template - ALWAYS_INLINE u64 GenerateUniformRange(u64 min, u64 max, F f) { - /* Handle the case where the difference is too large to represent. */ - if (max == std::numeric_limits::max() && min == std::numeric_limits::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::max() / range_size) * range_size; - while (true) { - if (const u64 rnd = f(); rnd < effective_max) { - return min + (rnd % range_size); - } - } - } - ALWAYS_INLINE u64 GetConfigU64(smc::ConfigItem which) { u64 value; smc::GetConfig(&value, 1, which); @@ -324,6 +286,14 @@ namespace ams::kern::board::nintendo::nx { } /* Initialization. */ + size_t KSystemControl::Init::GetRealMemorySize() { + /* TODO: Move this into a header for the MC in general. */ + constexpr u32 MemoryControllerConfigurationRegister = 0x70019050; + u32 config_value; + MESOSPHERE_INIT_ABORT_UNLESS(smc::init::ReadWriteRegister(&config_value, MemoryControllerConfigurationRegister, 0, 0)); + return static_cast(config_value & 0x3FFF) << 20; + } + size_t KSystemControl::Init::GetIntendedMemorySize() { switch (GetKernelConfigurationForInit().Get()) { case smc::MemorySize_4GB: @@ -336,23 +306,6 @@ namespace ams::kern::board::nintendo::nx { } } - KPhysicalAddress KSystemControl::Init::GetKernelPhysicalBaseAddress(uintptr_t base_address) { - const size_t real_dram_size = GetRealMemorySizeForInit(); - 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); - } - } - - void KSystemControl::Init::GetInitialProcessBinaryLayout(InitialProcessBinaryLayout *out) { - *out = { - .address = GetInteger(GetKernelPhysicalBaseAddress(DramPhysicalAddress)) + GetIntendedMemorySize() - KTraceBufferSize - InitialProcessBinarySizeMax, - ._08 = 0, - }; - } - bool KSystemControl::Init::ShouldIncreaseThreadResourceLimit() { return GetKernelConfigurationForInit().Get(); } @@ -424,17 +377,17 @@ namespace ams::kern::board::nintendo::nx { } void KSystemControl::Init::CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { - smc::init::CpuOn(core_id, entrypoint, arg); + MESOSPHERE_INIT_ABORT_UNLESS((::ams::kern::arch::arm64::smc::CpuOn(core_id, entrypoint, arg)) == 0); } /* Randomness for Initialization. */ - void KSystemControl::Init::GenerateRandomBytes(void *dst, size_t size) { - MESOSPHERE_INIT_ABORT_UNLESS(size <= 0x38); - smc::init::GenerateRandomBytes(dst, size); + void KSystemControl::Init::GenerateRandom(u64 *dst, size_t count) { + MESOSPHERE_INIT_ABORT_UNLESS(count <= 7); + smc::init::GenerateRandomBytes(dst, count * sizeof(u64)); } u64 KSystemControl::Init::GenerateRandomRange(u64 min, u64 max) { - return GenerateUniformRange(min, max, GenerateRandomU64ForInit); + return KSystemControlBase::GenerateUniformRange(min, max, GenerateRandomU64ForInit); } /* System Initialization. */ @@ -443,8 +396,8 @@ namespace ams::kern::board::nintendo::nx { { u64 seed; smc::GenerateRandomBytes(std::addressof(seed), sizeof(seed)); - g_random_generator.Initialize(reinterpret_cast(std::addressof(seed)), sizeof(seed) / sizeof(u32)); - g_initialized_random_generator = true; + s_random_generator.Initialize(reinterpret_cast(std::addressof(seed)), sizeof(seed) / sizeof(u32)); + s_initialized_random_generator = true; } /* Set IsDebugMode. */ @@ -483,25 +436,8 @@ namespace ams::kern::board::nintendo::nx { smc::ConfigureCarveout(0, carveout.GetAddress(), carveout.GetSize()); } - /* System ResourceLimit initialization. */ - { - /* Construct the resource limit object. */ - KResourceLimit &sys_res_limit = Kernel::GetSystemResourceLimit(); - KAutoObject::Create(std::addressof(sys_res_limit)); - sys_res_limit.Initialize(); - - /* Set the initial limits. */ - const auto [total_memory_size, kernel_memory_size] = KMemoryLayout::GetTotalAndKernelMemorySizes(); - const auto &slab_counts = init::GetSlabResourceCounts(); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_PhysicalMemoryMax, total_memory_size)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_ThreadCountMax, slab_counts.num_KThread)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_EventCountMax, slab_counts.num_KEvent)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_TransferMemoryCountMax, slab_counts.num_KTransferMemory)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_SessionCountMax, slab_counts.num_KSession)); - - /* Reserve system memory. */ - MESOSPHERE_ABORT_UNLESS(sys_res_limit.Reserve(ams::svc::LimitableResource_PhysicalMemoryMax, kernel_memory_size)); - } + /* Initialize the system resource limit (and potentially other things). */ + KSystemControlBase::InitializePhase1(true); } void KSystemControl::InitializePhase2() { @@ -520,11 +456,8 @@ namespace ams::kern::board::nintendo::nx { g_secure_applet_memory_address = KMemoryLayout::GetLinearVirtualAddress(secure_applet_memory_phys_addr); } - /* Initialize KTrace. */ - if constexpr (IsKTraceEnabled) { - const auto &ktrace = KMemoryLayout::GetKernelTraceBufferRegion(); - KTrace::Initialize(ktrace.GetAddress(), ktrace.GetSize()); - } + /* Initialize KTrace (and potentially other init). */ + KSystemControlBase::InitializePhase2(); } u32 KSystemControl::GetCreateProcessMemoryPool() { @@ -546,29 +479,29 @@ namespace ams::kern::board::nintendo::nx { } /* Randomness. */ - void KSystemControl::GenerateRandomBytes(void *dst, size_t size) { - MESOSPHERE_INIT_ABORT_UNLESS(size <= 0x38); - smc::GenerateRandomBytes(dst, size); + void KSystemControl::GenerateRandom(u64 *dst, size_t count) { + MESOSPHERE_INIT_ABORT_UNLESS(count <= 7); + smc::GenerateRandomBytes(dst, count * sizeof(u64)); } u64 KSystemControl::GenerateRandomRange(u64 min, u64 max) { KScopedInterruptDisable intr_disable; - KScopedSpinLock lk(g_random_lock); + KScopedSpinLock lk(s_random_lock); - if (AMS_LIKELY(g_initialized_random_generator)) { - return GenerateUniformRange(min, max, GenerateRandomU64FromGenerator); + if (AMS_LIKELY(s_initialized_random_generator)) { + return KSystemControlBase::GenerateUniformRange(min, max, [] ALWAYS_INLINE_LAMBDA () -> u64 { return s_random_generator.GenerateRandomU64(); }); } else { - return GenerateUniformRange(min, max, GenerateRandomU64FromSmc); + return KSystemControlBase::GenerateUniformRange(min, max, GenerateRandomU64FromSmc); } } u64 KSystemControl::GenerateRandomU64() { KScopedInterruptDisable intr_disable; - KScopedSpinLock lk(g_random_lock); + KScopedSpinLock lk(s_random_lock); - if (AMS_LIKELY(g_initialized_random_generator)) { - return GenerateRandomU64FromGenerator(); + if (AMS_LIKELY(s_initialized_random_generator)) { + return s_random_generator.GenerateRandomU64(); } else { return GenerateRandomU64FromSmc(); } @@ -672,52 +605,18 @@ namespace ams::kern::board::nintendo::nx { } /* User access. */ - void KSystemControl::CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args) { - /* Get the function id for the current call. */ - u64 function_id = args->r[0]; - - /* We'll need to map in pages if arguments are pointers. Prepare page groups to do so. */ - auto &page_table = GetCurrentProcess().GetPageTable(); - auto *bim = page_table.GetBlockInfoManager(); - - constexpr size_t MaxMappedRegisters = 7; - std::array page_groups = { KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), }; - - for (size_t i = 0; i < MaxMappedRegisters; i++) { - const size_t reg_id = i + 1; - if (function_id & (1ul << (8 + reg_id))) { - /* Create and open a new page group for the address. */ - KVirtualAddress virt_addr = args->r[reg_id]; - - if (R_SUCCEEDED(page_table.MakeAndOpenPageGroup(std::addressof(page_groups[i]), util::AlignDown(GetInteger(virt_addr), PageSize), 1, KMemoryState_None, KMemoryState_None, KMemoryPermission_UserReadWrite, KMemoryPermission_UserReadWrite, KMemoryAttribute_None, KMemoryAttribute_None))) { - /* Translate the virtual address to a physical address. */ - const auto it = page_groups[i].begin(); - MESOSPHERE_ASSERT(it != page_groups[i].end()); - MESOSPHERE_ASSERT(it->GetNumPages() == 1); - - args->r[reg_id] = GetInteger(it->GetAddress()) | (GetInteger(virt_addr) & (PageSize - 1)); - } else { - /* If we couldn't map, we should clear the address. */ - args->r[reg_id] = 0; - } - } - } - + void KSystemControl::CallSecureMonitorFromUserImpl(ams::svc::lp64::SecureMonitorArguments *args) { /* Invoke the secure monitor. */ - smc::CallSecureMonitorFromUser(args); - - /* Make sure that we close any pages that we opened. */ - for (size_t i = 0; i < MaxMappedRegisters; i++) { - page_groups[i].Close(); - } + return smc::CallSecureMonitorFromUser(args); } /* Secure Memory. */ size_t KSystemControl::CalculateRequiredSecureMemorySize(size_t size, u32 pool) { if (pool == KMemoryManager::Pool_Applet) { return 0; + } else { + return KSystemControlBase::CalculateRequiredSecureMemorySize(size, pool); } - return size; } Result KSystemControl::AllocateSecureMemory(KVirtualAddress *out, size_t size, u32 pool) { diff --git a/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.cpp b/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.cpp index 2ec4cbe2c..6b1e3923f 100644 --- a/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.cpp +++ b/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.cpp @@ -20,10 +20,6 @@ namespace ams::kern::board::nintendo::nx::smc { namespace { - struct SecureMonitorArguments { - u64 x[8]; - }; - enum UserFunctionId : u32 { UserFunctionId_SetConfig = 0xC3000401, UserFunctionId_GetConfigUser = 0xC3000002, @@ -45,9 +41,6 @@ namespace ams::kern::board::nintendo::nx::smc { }; enum FunctionId : u32 { - FunctionId_CpuSuspend = 0xC4000001, - FunctionId_CpuOff = 0x84000002, - FunctionId_CpuOn = 0xC4000003, FunctionId_GetConfig = 0xC3000004, FunctionId_GenerateRandomBytes = 0xC3000005, FunctionId_Panic = 0xC3000006, @@ -58,171 +51,60 @@ namespace ams::kern::board::nintendo::nx::smc { FunctionId_SetConfig = 0xC3000409, }; - void CallPrivilegedSecureMonitorFunction(SecureMonitorArguments &args) { - /* Load arguments into registers. */ - register u64 x0 asm("x0") = args.x[0]; - register u64 x1 asm("x1") = args.x[1]; - register u64 x2 asm("x2") = args.x[2]; - register u64 x3 asm("x3") = args.x[3]; - register u64 x4 asm("x4") = args.x[4]; - register u64 x5 asm("x5") = args.x[5]; - register u64 x6 asm("x6") = args.x[6]; - register u64 x7 asm("x7") = args.x[7]; - - /* Actually make the call. */ - { - /* Disable interrupts while making the call. */ - KScopedInterruptDisable intr_disable; - - { - /* Backup the current thread pointer. */ - const uintptr_t current_thread_pointer_value = cpu::GetCurrentThreadPointerValue(); - - __asm__ __volatile__("smc #1" - : "+r"(x0), "+r"(x1), "+r"(x2), "+r"(x3), "+r"(x4), "+r"(x5), "+r"(x6), "+r"(x7) - : - : "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "cc", "memory" - ); - - /* Restore the current thread pointer into X18. */ - cpu::SetCurrentThreadPointerValue(current_thread_pointer_value); - - /* Store arguments to output. */ - args.x[0] = x0; - args.x[1] = x1; - args.x[2] = x2; - args.x[3] = x3; - args.x[4] = x4; - args.x[5] = x5; - args.x[6] = x6; - args.x[7] = x7; - } - } - } - - void CallUserSecureMonitorFunction(ams::svc::lp64::SecureMonitorArguments *args) { - /* Load arguments into registers. */ - register u64 x0 asm("x0") = args->r[0]; - register u64 x1 asm("x1") = args->r[1]; - register u64 x2 asm("x2") = args->r[2]; - register u64 x3 asm("x3") = args->r[3]; - register u64 x4 asm("x4") = args->r[4]; - register u64 x5 asm("x5") = args->r[5]; - register u64 x6 asm("x6") = args->r[6]; - register u64 x7 asm("x7") = args->r[7]; - - /* Actually make the call. */ - { - /* Disable interrupts while making the call. */ - KScopedInterruptDisable intr_disable; - - { - /* Backup the current thread pointer. */ - const uintptr_t current_thread_pointer_value = cpu::GetCurrentThreadPointerValue(); - - __asm__ __volatile__("smc #0" - : "+r"(x0), "+r"(x1), "+r"(x2), "+r"(x3), "+r"(x4), "+r"(x5), "+r"(x6), "+r"(x7) - : - : "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "cc", "memory" - ); - - /* Restore the current thread pointer into X18. */ - cpu::SetCurrentThreadPointerValue(current_thread_pointer_value); - - /* Store arguments to output. */ - args->r[0] = x0; - args->r[1] = x1; - args->r[2] = x2; - args->r[3] = x3; - args->r[4] = x4; - args->r[5] = x5; - args->r[6] = x6; - args->r[7] = x7; - } - } - } - - void CallPrivilegedSecureMonitorFunctionForInit(SecureMonitorArguments &args) { - /* Load arguments into registers. */ - register u64 x0 asm("x0") = args.x[0]; - register u64 x1 asm("x1") = args.x[1]; - register u64 x2 asm("x2") = args.x[2]; - register u64 x3 asm("x3") = args.x[3]; - register u64 x4 asm("x4") = args.x[4]; - register u64 x5 asm("x5") = args.x[5]; - register u64 x6 asm("x6") = args.x[6]; - register u64 x7 asm("x7") = args.x[7]; - - /* Actually make the call. */ - __asm__ __volatile__("smc #1" - : "+r"(x0), "+r"(x1), "+r"(x2), "+r"(x3), "+r"(x4), "+r"(x5), "+r"(x6), "+r"(x7) - : - : "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "cc", "memory" - ); - - /* Store arguments to output. */ - args.x[0] = x0; - args.x[1] = x1; - args.x[2] = x2; - args.x[3] = x3; - args.x[4] = x4; - args.x[5] = x5; - args.x[6] = x6; - args.x[7] = x7; - } - /* Global lock for generate random bytes. */ - KSpinLock g_generate_random_lock; + constinit KSpinLock g_generate_random_lock; } /* SMC functionality needed for init. */ namespace init { - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { - SecureMonitorArguments args = { FunctionId_CpuOn, core_id, entrypoint, arg }; - CallPrivilegedSecureMonitorFunctionForInit(args); - } - void GetConfig(u64 *out, size_t num_qwords, ConfigItem config_item) { - SecureMonitorArguments args = { FunctionId_GetConfig, static_cast(config_item) }; - CallPrivilegedSecureMonitorFunctionForInit(args); - MESOSPHERE_INIT_ABORT_UNLESS((static_cast(args.x[0]) == SmcResult::Success)); + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_GetConfig, static_cast(config_item) } }; + + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + MESOSPHERE_INIT_ABORT_UNLESS((static_cast(args.r[0]) == SmcResult::Success)); + for (size_t i = 0; i < num_qwords && i < 7; i++) { - out[i] = args.x[1 + i]; + out[i] = args.r[1 + i]; } } void GenerateRandomBytes(void *dst, size_t size) { /* Call SmcGenerateRandomBytes() */ - SecureMonitorArguments args = { FunctionId_GenerateRandomBytes, size }; - MESOSPHERE_INIT_ABORT_UNLESS(size <= sizeof(args) - sizeof(args.x[0])); + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_GenerateRandomBytes, size } }; + MESOSPHERE_INIT_ABORT_UNLESS(size <= sizeof(args) - sizeof(args.r[0])); - CallPrivilegedSecureMonitorFunctionForInit(args); - MESOSPHERE_INIT_ABORT_UNLESS((static_cast(args.x[0]) == SmcResult::Success)); + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + MESOSPHERE_INIT_ABORT_UNLESS((static_cast(args.r[0]) == SmcResult::Success)); /* Copy output. */ - std::memcpy(dst, std::addressof(args.x[1]), size); + std::memcpy(dst, std::addressof(args.r[1]), size); } bool ReadWriteRegister(u32 *out, u64 address, u32 mask, u32 value) { - SecureMonitorArguments args = { FunctionId_ReadWriteRegister, address, mask, value }; - CallPrivilegedSecureMonitorFunctionForInit(args); - *out = args.x[1]; - return static_cast(args.x[0]) == SmcResult::Success; + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_ReadWriteRegister, address, mask, value } }; + + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + MESOSPHERE_INIT_ABORT_UNLESS((static_cast(args.r[0]) == SmcResult::Success)); + + *out = args.r[1]; + + return static_cast(args.r[0]) == SmcResult::Success; } } bool TryGetConfig(u64 *out, size_t num_qwords, ConfigItem config_item) { - SecureMonitorArguments args = { FunctionId_GetConfig, static_cast(config_item) }; - CallPrivilegedSecureMonitorFunction(args); - if (static_cast(args.x[0]) != SmcResult::Success) { + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_GetConfig, static_cast(config_item) } }; + + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + if (AMS_UNLIKELY(static_cast(args.r[0]) != SmcResult::Success)) { return false; } for (size_t i = 0; i < num_qwords && i < 7; i++) { - out[i] = args.x[1 + i]; + out[i] = args.r[1 + i]; } return true; @@ -233,55 +115,58 @@ namespace ams::kern::board::nintendo::nx::smc { } bool SetConfig(ConfigItem config_item, u64 value) { - SecureMonitorArguments args = { FunctionId_SetConfig, static_cast(config_item), 0, value }; - CallPrivilegedSecureMonitorFunction(args); - return static_cast(args.x[0]) == SmcResult::Success; + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_SetConfig, static_cast(config_item), 0, value } }; + + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + + return static_cast(args.r[0]) == SmcResult::Success; } bool ReadWriteRegister(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value) { - SecureMonitorArguments args = { FunctionId_ReadWriteRegister, address, mask, value }; - CallPrivilegedSecureMonitorFunction(args); - *out = static_cast(args.x[1]); - return static_cast(args.x[0]) == SmcResult::Success; + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_ReadWriteRegister, address, mask, value } }; + + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + + *out = static_cast(args.r[1]); + return static_cast(args.r[0]) == SmcResult::Success; } void ConfigureCarveout(size_t which, uintptr_t address, size_t size) { - SecureMonitorArguments args = { FunctionId_ConfigureCarveout, static_cast(which), static_cast(address), static_cast(size) }; - CallPrivilegedSecureMonitorFunction(args); - MESOSPHERE_ABORT_UNLESS((static_cast(args.x[0]) == SmcResult::Success)); - } + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_ConfigureCarveout, static_cast(which), static_cast(address), static_cast(size) } }; - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { - SecureMonitorArguments args = { FunctionId_CpuOn, core_id, static_cast(entrypoint), static_cast(arg) }; - CallPrivilegedSecureMonitorFunction(args); - MESOSPHERE_ABORT_UNLESS((static_cast(args.x[0]) == SmcResult::Success)); + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + + MESOSPHERE_ABORT_UNLESS((static_cast(args.r[0]) == SmcResult::Success)); } void GenerateRandomBytes(void *dst, size_t size) { /* Setup for call. */ - SecureMonitorArguments args = { FunctionId_GenerateRandomBytes, size }; - MESOSPHERE_ABORT_UNLESS(size <= sizeof(args) - sizeof(args.x[0])); + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_GenerateRandomBytes, size } }; + MESOSPHERE_ABORT_UNLESS(size <= sizeof(args) - sizeof(args.r[0])); /* Make call. */ { KScopedInterruptDisable intr_disable; KScopedSpinLock lk(g_generate_random_lock); - CallPrivilegedSecureMonitorFunction(args); + + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); } - MESOSPHERE_ABORT_UNLESS((static_cast(args.x[0]) == SmcResult::Success)); + MESOSPHERE_ABORT_UNLESS((static_cast(args.r[0]) == SmcResult::Success)); /* Copy output. */ - std::memcpy(dst, std::addressof(args.x[1]), size); + std::memcpy(dst, std::addressof(args.r[1]), size); } void NORETURN Panic(u32 color) { - SecureMonitorArguments args = { FunctionId_Panic, color }; - CallPrivilegedSecureMonitorFunction(args); + ams::svc::lp64::SecureMonitorArguments args = { { FunctionId_Panic, color } }; + + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args.r); + AMS_INFINITE_LOOP(); } void CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args) { - CallUserSecureMonitorFunction(args); + ::ams::kern::arch::arm64::smc::SecureMonitorCall(args->r); } } \ No newline at end of file diff --git a/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.hpp b/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.hpp index cf1d0cdac..b172fa540 100644 --- a/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.hpp +++ b/libraries/libmesosphere/source/board/nintendo/nx/kern_secure_monitor.hpp @@ -15,10 +15,16 @@ */ #pragma once #include +#include namespace ams::kern::board::nintendo::nx::smc { /* Types. */ + enum SmcId { + SmcId_User = 0, + SmcId_Supervisor = 1, + }; + enum MemorySize { MemorySize_4GB = 0, MemorySize_6GB = 1, @@ -105,15 +111,12 @@ namespace ams::kern::board::nintendo::nx::smc { bool SetConfig(ConfigItem config_item, u64 value); - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg); - void NORETURN Panic(u32 color); void CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args); namespace init { - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg); void GetConfig(u64 *out, size_t num_qwords, ConfigItem config_item); void GenerateRandomBytes(void *dst, size_t size); bool ReadWriteRegister(u32 *out, u64 address, u32 mask, u32 value); diff --git a/libraries/libmesosphere/source/board/qemu/virt/kern_k_system_control.cpp b/libraries/libmesosphere/source/board/qemu/virt/kern_k_system_control.cpp index 53526eece..59972ef65 100644 --- a/libraries/libmesosphere/source/board/qemu/virt/kern_k_system_control.cpp +++ b/libraries/libmesosphere/source/board/qemu/virt/kern_k_system_control.cpp @@ -18,447 +18,10 @@ namespace ams::kern::board::qemu::virt { - namespace { - - constexpr uintptr_t DramPhysicalAddress = 0x40000000; - constexpr size_t SecureAlignment = 128_KB; - - /* Global variables for secure memory. */ - constexpr size_t SecureAppletMemorySize = 4_MB; - constinit KSpinLock g_secure_applet_lock; - constinit bool g_secure_applet_memory_used = false; - constinit KVirtualAddress g_secure_applet_memory_address = Null; - - constinit KSpinLock g_secure_region_lock; - constinit bool g_secure_region_used = false; - constinit KPhysicalAddress g_secure_region_phys_addr = Null; - constinit size_t g_secure_region_size = 0; - - /* Global variables for randomness. */ - constinit bool g_initialized_random_generator; - constinit util::TinyMT g_random_generator; - constinit KSpinLock g_random_lock; - - ALWAYS_INLINE u64 GenerateRandomU64FromGenerator() { - return g_random_generator.GenerateRandomU64(); - } - - template - ALWAYS_INLINE u64 GenerateUniformRange(u64 min, u64 max, F f) { - /* Handle the case where the difference is too large to represent. */ - if (max == std::numeric_limits::max() && min == std::numeric_limits::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::max() / range_size) * range_size; - while (true) { - if (const u64 rnd = f(); rnd < effective_max) { - return min + (rnd % range_size); - } - } - } - - - /* TODO */ - - ALWAYS_INLINE size_t GetRealMemorySizeForInit() { - return 4_GB; - } - - bool SetSecureRegion(KPhysicalAddress phys_addr, size_t size) { - /* Ensure address and size are aligned. */ - if (!util::IsAligned(GetInteger(phys_addr), SecureAlignment)) { - return false; - } - if (!util::IsAligned(size, SecureAlignment)) { - return false; - } - - /* Disable interrupts and acquire the secure region lock. */ - KScopedInterruptDisable di; - KScopedSpinLock lk(g_secure_region_lock); - - /* If size is non-zero, we're allocating the secure region. Otherwise, we're freeing it. */ - if (size != 0) { - /* Verify that the secure region is free. */ - if (g_secure_region_used) { - return false; - } - - /* Set the secure region. */ - g_secure_region_used = true; - g_secure_region_phys_addr = phys_addr; - g_secure_region_size = size; - } else { - /* Verify that the secure region is in use. */ - if (!g_secure_region_used) { - return false; - } - - /* Verify that the address being freed is the secure region. */ - if (phys_addr != g_secure_region_phys_addr) { - return false; - } - - /* Clear the secure region. */ - g_secure_region_used = false; - g_secure_region_phys_addr = Null; - g_secure_region_size = 0; - } - - // /* Configure the carveout with the secure monitor. */ - // smc::ConfigureCarveout(1, GetInteger(phys_addr), size); - - return true; - } - - Result AllocateSecureMemoryForApplet(KVirtualAddress *out, size_t size) { - /* Verify that the size is valid. */ - R_UNLESS(util::IsAligned(size, PageSize), svc::ResultInvalidSize()); - R_UNLESS(size <= SecureAppletMemorySize, svc::ResultOutOfMemory()); - - /* Disable interrupts and acquire the secure applet lock. */ - KScopedInterruptDisable di; - KScopedSpinLock lk(g_secure_applet_lock); - - /* Check that memory is reserved for secure applet use. */ - MESOSPHERE_ABORT_UNLESS(g_secure_applet_memory_address != Null); - - /* Verify that the secure applet memory isn't already being used. */ - R_UNLESS(!g_secure_applet_memory_used, svc::ResultOutOfMemory()); - - /* Return the secure applet memory. */ - g_secure_applet_memory_used = true; - *out = g_secure_applet_memory_address; - - return ResultSuccess(); - } - - void FreeSecureMemoryForApplet(KVirtualAddress address, size_t size) { - /* Disable interrupts and acquire the secure applet lock. */ - KScopedInterruptDisable di; - KScopedSpinLock lk(g_secure_applet_lock); - - /* Verify that the memory being freed is correct. */ - MESOSPHERE_ABORT_UNLESS(address == g_secure_applet_memory_address); - MESOSPHERE_ABORT_UNLESS(size <= SecureAppletMemorySize); - MESOSPHERE_ABORT_UNLESS(util::IsAligned(size, PageSize)); - MESOSPHERE_ABORT_UNLESS(g_secure_applet_memory_used); - - /* Release the secure applet memory. */ - g_secure_applet_memory_used = false; - } - - void EnsureRandomGeneratorSeeded() { - if (AMS_UNLIKELY(!g_initialized_random_generator)) { - u64 seed = UINT64_C(0xF5F5F5F5F5F5F5F5); - g_random_generator.Initialize(reinterpret_cast(std::addressof(seed)), sizeof(seed) / sizeof(u32)); - g_initialized_random_generator = true; - } - } - - } - - /* Initialization. */ - size_t KSystemControl::Init::GetIntendedMemorySize() { - return 4_GB; - } - - KPhysicalAddress KSystemControl::Init::GetKernelPhysicalBaseAddress(uintptr_t base_address) { - const size_t real_dram_size = GetRealMemorySizeForInit(); - 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); - } - } - - void KSystemControl::Init::GetInitialProcessBinaryLayout(InitialProcessBinaryLayout *out) { - *out = { - .address = GetInteger(GetKernelPhysicalBaseAddress(DramPhysicalAddress)) + GetIntendedMemorySize() - KTraceBufferSize - InitialProcessBinarySizeMax, - ._08 = 0, - }; - } - - - bool KSystemControl::Init::ShouldIncreaseThreadResourceLimit() { - return true; - } - - - size_t KSystemControl::Init::GetApplicationPoolSize() { - /* Get the base pool size. */ - const size_t base_pool_size = 3285_MB; - - /* Return (possibly) adjusted size. */ - return base_pool_size; - } - - size_t KSystemControl::Init::GetAppletPoolSize() { - /* Get the base pool size. */ - const size_t base_pool_size = 507_MB; - - /* Return (possibly) adjusted size. */ - constexpr size_t ExtraSystemMemoryForAtmosphere = 40_MB; - return base_pool_size - ExtraSystemMemoryForAtmosphere - KTraceBufferSize; - } - - size_t KSystemControl::Init::GetMinimumNonSecureSystemPoolSize() { - return 0x29C8000; - } - - void KSystemControl::Init::CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { - smc::init::CpuOn(core_id, entrypoint, arg); - } - - /* Randomness for Initialization. */ - void KSystemControl::Init::GenerateRandomBytes(void *dst, size_t size) { - EnsureRandomGeneratorSeeded(); - - u8 *dst_8 = static_cast(dst); - while (size > 0) { - const u64 random = GenerateRandomU64FromGenerator(); - std::memcpy(dst_8, std::addressof(random), std::min(size, sizeof(u64))); - size -= std::min(size, sizeof(u64)); - } - } - - u64 KSystemControl::Init::GenerateRandomRange(u64 min, u64 max) { - EnsureRandomGeneratorSeeded(); - - return GenerateUniformRange(min, max, GenerateRandomU64FromGenerator); - } - - /* System Initialization. */ - void KSystemControl::InitializePhase1() { - /* Set IsDebugMode. */ - { - KTargetSystem::SetIsDebugMode(true); - - /* If debug mode, we want to initialize uart logging. */ - KTargetSystem::EnableDebugLogging(true); - KDebugLog::Initialize(); - } - - /* Set Kernel Configuration. */ - { - KTargetSystem::EnableDebugMemoryFill(false); - KTargetSystem::EnableUserExceptionHandlers(true); - KTargetSystem::EnableDynamicResourceLimits(true); - KTargetSystem::EnableUserPmuAccess(false); - } - - /* Set Kernel Debugging. */ - { - /* NOTE: This is used to restrict access to SvcKernelDebug/SvcChangeKernelTraceState. */ - /* Mesosphere may wish to not require this, as we'd ideally keep ProgramVerification enabled for userland. */ - KTargetSystem::EnableKernelDebugging(true); - } - - /* System ResourceLimit initialization. */ - { - /* Construct the resource limit object. */ - KResourceLimit &sys_res_limit = Kernel::GetSystemResourceLimit(); - KAutoObject::Create(std::addressof(sys_res_limit)); - sys_res_limit.Initialize(); - - /* Set the initial limits. */ - const auto [total_memory_size, kernel_memory_size] = KMemoryLayout::GetTotalAndKernelMemorySizes(); - const auto &slab_counts = init::GetSlabResourceCounts(); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_PhysicalMemoryMax, total_memory_size)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_ThreadCountMax, slab_counts.num_KThread)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_EventCountMax, slab_counts.num_KEvent)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_TransferMemoryCountMax, slab_counts.num_KTransferMemory)); - MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_SessionCountMax, slab_counts.num_KSession)); - - /* Reserve system memory. */ - MESOSPHERE_ABORT_UNLESS(sys_res_limit.Reserve(ams::svc::LimitableResource_PhysicalMemoryMax, kernel_memory_size)); - } - } - - void KSystemControl::InitializePhase2() { - /* Reserve secure applet memory. */ - if (GetTargetFirmware() >= TargetFirmware_5_0_0) { - MESOSPHERE_ABORT_UNLESS(g_secure_applet_memory_address == Null); - MESOSPHERE_ABORT_UNLESS(Kernel::GetSystemResourceLimit().Reserve(ams::svc::LimitableResource_PhysicalMemoryMax, SecureAppletMemorySize)); - - constexpr auto SecureAppletAllocateOption = KMemoryManager::EncodeOption(KMemoryManager::Pool_System, KMemoryManager::Direction_FromFront); - const KPhysicalAddress secure_applet_memory_phys_addr = Kernel::GetMemoryManager().AllocateAndOpenContinuous(SecureAppletMemorySize / PageSize, 1, SecureAppletAllocateOption); - MESOSPHERE_ABORT_UNLESS(secure_applet_memory_phys_addr != Null); - - g_secure_applet_memory_address = KMemoryLayout::GetLinearVirtualAddress(secure_applet_memory_phys_addr); - } - - /* Initialize KTrace. */ - if constexpr (IsKTraceEnabled) { - const auto &ktrace = KMemoryLayout::GetKernelTraceBufferRegion(); - KTrace::Initialize(ktrace.GetAddress(), ktrace.GetSize()); - } - } - - u32 KSystemControl::GetCreateProcessMemoryPool() { - return KMemoryManager::Pool_Unsafe; - } - - /* Privileged Access. */ - void KSystemControl::ReadWriteRegisterPrivileged(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value) { - MESOSPHERE_UNUSED(out, address, mask, value); - MESOSPHERE_UNIMPLEMENTED(); - } - - Result KSystemControl::ReadWriteRegister(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value) { - MESOSPHERE_UNUSED(out, address, mask, value); - MESOSPHERE_UNIMPLEMENTED(); - } - - /* Randomness. */ - void KSystemControl::GenerateRandomBytes(void *dst, size_t size) { - KScopedInterruptDisable intr_disable; - KScopedSpinLock lk(g_random_lock); - - u8 *dst_8 = static_cast(dst); - while (size > 0) { - const u64 random = GenerateRandomU64FromGenerator(); - std::memcpy(dst_8, std::addressof(random), std::min(size, sizeof(u64))); - size -= std::min(size, sizeof(u64)); - } - } - - u64 KSystemControl::GenerateRandomRange(u64 min, u64 max) { - KScopedInterruptDisable intr_disable; - KScopedSpinLock lk(g_random_lock); - - return GenerateUniformRange(min, max, GenerateRandomU64FromGenerator); - } - - u64 KSystemControl::GenerateRandomU64() { - KScopedInterruptDisable intr_disable; - KScopedSpinLock lk(g_random_lock); - - return GenerateRandomU64FromGenerator(); - } - - void KSystemControl::SleepSystem() { - MESOSPHERE_LOG("SleepSystem() was called\n"); - MESOSPHERE_UNIMPLEMENTED(); - } - - void KSystemControl::StopSystem(void *arg) { - MESOSPHERE_UNUSED(arg); - AMS_INFINITE_LOOP(); - } - /* User access. */ void KSystemControl::CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args) { - /* Get the function id for the current call. */ - u64 function_id = args->r[0]; - - /* We'll need to map in pages if arguments are pointers. Prepare page groups to do so. */ - auto &page_table = GetCurrentProcess().GetPageTable(); - auto *bim = page_table.GetBlockInfoManager(); - - constexpr size_t MaxMappedRegisters = 7; - std::array page_groups = { KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), }; - - for (size_t i = 0; i < MaxMappedRegisters; i++) { - const size_t reg_id = i + 1; - if (function_id & (1ul << (8 + reg_id))) { - /* Create and open a new page group for the address. */ - KVirtualAddress virt_addr = args->r[reg_id]; - - if (R_SUCCEEDED(page_table.MakeAndOpenPageGroup(std::addressof(page_groups[i]), util::AlignDown(GetInteger(virt_addr), PageSize), 1, KMemoryState_None, KMemoryState_None, KMemoryPermission_UserReadWrite, KMemoryPermission_UserReadWrite, KMemoryAttribute_None, KMemoryAttribute_None))) { - /* Translate the virtual address to a physical address. */ - const auto it = page_groups[i].begin(); - MESOSPHERE_ASSERT(it != page_groups[i].end()); - MESOSPHERE_ASSERT(it->GetNumPages() == 1); - - args->r[reg_id] = GetInteger(it->GetAddress()) | (GetInteger(virt_addr) & (PageSize - 1)); - } else { - /* If we couldn't map, we should clear the address. */ - args->r[reg_id] = 0; - } - } - } - /* Invoke the secure monitor. */ - smc::CallSecureMonitorFromUser(args); - - /* Make sure that we close any pages that we opened. */ - for (size_t i = 0; i < MaxMappedRegisters; i++) { - page_groups[i].Close(); - } - } - - /* Secure Memory. */ - size_t KSystemControl::CalculateRequiredSecureMemorySize(size_t size, u32 pool) { - if (pool == KMemoryManager::Pool_Applet) { - return 0; - } - return size; - } - - Result KSystemControl::AllocateSecureMemory(KVirtualAddress *out, size_t size, u32 pool) { - /* Applet secure memory is handled separately. */ - if (pool == KMemoryManager::Pool_Applet) { - return AllocateSecureMemoryForApplet(out, size); - } - - /* Ensure the size is aligned. */ - const size_t alignment = (pool == KMemoryManager::Pool_System ? PageSize : SecureAlignment); - R_UNLESS(util::IsAligned(size, alignment), svc::ResultInvalidSize()); - - /* Allocate the memory. */ - const size_t num_pages = size / PageSize; - const KPhysicalAddress paddr = Kernel::GetMemoryManager().AllocateAndOpenContinuous(num_pages, alignment / PageSize, KMemoryManager::EncodeOption(static_cast(pool), KMemoryManager::Direction_FromFront)); - R_UNLESS(paddr != Null, svc::ResultOutOfMemory()); - - /* Ensure we don't leak references to the memory on error. */ - auto mem_guard = SCOPE_GUARD { Kernel::GetMemoryManager().Close(paddr, num_pages); }; - - /* If the memory isn't already secure, set it as secure. */ - if (pool != KMemoryManager::Pool_System) { - /* Set the secure region. */ - R_UNLESS(SetSecureRegion(paddr, size), svc::ResultOutOfMemory()); - } - - /* We succeeded. */ - mem_guard.Cancel(); - *out = KPageTable::GetHeapVirtualAddress(paddr); - return ResultSuccess(); - } - - void KSystemControl::FreeSecureMemory(KVirtualAddress address, size_t size, u32 pool) { - /* Applet secure memory is handled separately. */ - if (pool == KMemoryManager::Pool_Applet) { - return FreeSecureMemoryForApplet(address, size); - } - - /* Ensure the size is aligned. */ - const size_t alignment = (pool == KMemoryManager::Pool_System ? PageSize : SecureAlignment); - MESOSPHERE_ABORT_UNLESS(util::IsAligned(GetInteger(address), alignment)); - MESOSPHERE_ABORT_UNLESS(util::IsAligned(size, alignment)); - - /* If the memory isn't secure system, reset the secure region. */ - if (pool != KMemoryManager::Pool_System) { - /* Check that the size being freed is the current secure region size. */ - MESOSPHERE_ABORT_UNLESS(g_secure_region_size == size); - - /* Get the physical address. */ - const KPhysicalAddress paddr = KPageTable::GetHeapPhysicalAddress(address); - MESOSPHERE_ABORT_UNLESS(paddr != Null); - - /* Check that the memory being freed is the current secure region. */ - MESOSPHERE_ABORT_UNLESS(paddr == g_secure_region_phys_addr); - - /* Free the secure region. */ - MESOSPHERE_ABORT_UNLESS(SetSecureRegion(paddr, 0)); - } - - /* Close the secure region's pages. */ - Kernel::GetMemoryManager().Close(KPageTable::GetHeapPhysicalAddress(address), size / PageSize); + return smc::CallSecureMonitorFromUser(args); } } \ No newline at end of file diff --git a/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.cpp b/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.cpp index c4fa1c380..a97fd53b7 100644 --- a/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.cpp +++ b/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.cpp @@ -20,10 +20,6 @@ namespace ams::kern::board::qemu::virt::smc { namespace { - struct SecureMonitorArguments { - u64 x[8]; - }; - enum UserFunctionId : u32 { UserFunctionId_SetConfig = 0xC3000401, UserFunctionId_GetConfig = 0xC3000002, @@ -44,102 +40,6 @@ namespace ams::kern::board::qemu::virt::smc { UserFunctionId_PrepareEsCommonTitleKey = 0xC3000012, }; - enum FunctionId : u32 { - FunctionId_CpuSuspend = 0xC4000001, - FunctionId_CpuOff = 0x84000002, - FunctionId_CpuOn = 0xC4000003, - }; - - void CallPrivilegedSecureMonitorFunction(SecureMonitorArguments &args) { - /* Load arguments into registers. */ - register u64 x0 asm("x0") = args.x[0]; - register u64 x1 asm("x1") = args.x[1]; - register u64 x2 asm("x2") = args.x[2]; - register u64 x3 asm("x3") = args.x[3]; - register u64 x4 asm("x4") = args.x[4]; - register u64 x5 asm("x5") = args.x[5]; - register u64 x6 asm("x6") = args.x[6]; - register u64 x7 asm("x7") = args.x[7]; - - /* Actually make the call. */ - { - /* Disable interrupts while making the call. */ - KScopedInterruptDisable intr_disable; - - { - /* Backup the current thread pointer. */ - const uintptr_t current_thread_pointer_value = cpu::GetCurrentThreadPointerValue(); - - __asm__ __volatile__("smc #0" - : "+r"(x0), "+r"(x1), "+r"(x2), "+r"(x3), "+r"(x4), "+r"(x5), "+r"(x6), "+r"(x7) - : - : "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "cc", "memory" - ); - - /* Restore the current thread pointer into X18. */ - cpu::SetCurrentThreadPointerValue(current_thread_pointer_value); - - /* Store arguments to output. */ - args.x[0] = x0; - args.x[1] = x1; - args.x[2] = x2; - args.x[3] = x3; - args.x[4] = x4; - args.x[5] = x5; - args.x[6] = x6; - args.x[7] = x7; - } - } - } - - void CallPrivilegedSecureMonitorFunctionForInit(SecureMonitorArguments &args) { - /* Load arguments into registers. */ - register u64 x0 asm("x0") = args.x[0]; - register u64 x1 asm("x1") = args.x[1]; - register u64 x2 asm("x2") = args.x[2]; - register u64 x3 asm("x3") = args.x[3]; - register u64 x4 asm("x4") = args.x[4]; - register u64 x5 asm("x5") = args.x[5]; - register u64 x6 asm("x6") = args.x[6]; - register u64 x7 asm("x7") = args.x[7]; - - /* Actually make the call. */ - __asm__ __volatile__("smc #0" - : "+r"(x0), "+r"(x1), "+r"(x2), "+r"(x3), "+r"(x4), "+r"(x5), "+r"(x6), "+r"(x7) - : - : "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17", "x18", "cc", "memory" - ); - - /* Store arguments to output. */ - args.x[0] = x0; - args.x[1] = x1; - args.x[2] = x2; - args.x[3] = x3; - args.x[4] = x4; - args.x[5] = x5; - args.x[6] = x6; - args.x[7] = x7; - } - - /* Global lock for generate random bytes. */ - KSpinLock g_generate_random_lock; - - } - - /* SMC functionality needed for init. */ - namespace init { - - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { - SecureMonitorArguments args = { FunctionId_CpuOn, core_id, entrypoint, arg }; - CallPrivilegedSecureMonitorFunctionForInit(args); - } - - } - - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { - SecureMonitorArguments args = { FunctionId_CpuOn, core_id, static_cast(entrypoint), static_cast(arg) }; - CallPrivilegedSecureMonitorFunction(args); - MESOSPHERE_ABORT_UNLESS((static_cast(args.x[0]) == SmcResult::Success)); } void CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args) { diff --git a/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.hpp b/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.hpp index 869624007..8aeaec112 100644 --- a/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.hpp +++ b/libraries/libmesosphere/source/board/qemu/virt/kern_secure_monitor.hpp @@ -63,14 +63,6 @@ namespace ams::kern::board::qemu::virt::smc { NotPermitted = 6, }; - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg); - void CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args); - namespace init { - - void CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg); - - } - } \ No newline at end of file diff --git a/libraries/libmesosphere/source/kern_k_memory_layout.board.nintendo_nx.cpp b/libraries/libmesosphere/source/kern_k_memory_layout.board.nintendo_nx.cpp index 8f20de0e7..a0b4d303f 100644 --- a/libraries/libmesosphere/source/kern_k_memory_layout.board.nintendo_nx.cpp +++ b/libraries/libmesosphere/source/kern_k_memory_layout.board.nintendo_nx.cpp @@ -19,7 +19,6 @@ namespace ams::kern { namespace { - constexpr uintptr_t DramPhysicalAddress = 0x80000000; constexpr size_t ReservedEarlyDramSize = 0x60000; constexpr size_t CarveoutAlignment = 0x20000; @@ -100,7 +99,7 @@ namespace ams::kern { void SetupDramPhysicalMemoryRegions() { const size_t intended_memory_size = KSystemControl::Init::GetIntendedMemorySize(); - const KPhysicalAddress physical_memory_base_address = KSystemControl::Init::GetKernelPhysicalBaseAddress(DramPhysicalAddress); + const KPhysicalAddress physical_memory_base_address = KSystemControl::Init::GetKernelPhysicalBaseAddress(ams::kern::MainMemoryAddress); /* Insert blocks into the tree. */ MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(physical_memory_base_address), intended_memory_size, KMemoryRegionType_Dram)); @@ -173,16 +172,21 @@ namespace ams::kern { InsertPoolPartitionRegionIntoBothTrees(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. */ + /* Determine final total overhead size. */ total_overhead_size += KMemoryManager::CalculateManagementOverheadSize((unsafe_system_pool_start - pool_partitions_start) - total_overhead_size); - const uintptr_t pool_management_start = unsafe_system_pool_start - total_overhead_size; + + /* NOTE: Nintendo's kernel has layout [System, Management] but we have [Management, System]. This ensures the four UserPool regions are contiguous. */ + + /* Insert the system pool. */ + const uintptr_t system_pool_start = pool_partitions_start + total_overhead_size; + const size_t system_pool_size = unsafe_system_pool_start - system_pool_start; + InsertPoolPartitionRegionIntoBothTrees(system_pool_start, system_pool_size, KMemoryRegionType_DramSystemPool, KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr); + + /* Insert the pool management region. */ + const uintptr_t pool_management_start = pool_partitions_start; const size_t pool_management_size = total_overhead_size; u32 pool_management_attr = 0; InsertPoolPartitionRegionIntoBothTrees(pool_management_start, pool_management_size, KMemoryRegionType_DramPoolManagement, KMemoryRegionType_VirtualDramPoolManagement, pool_management_attr); - - /* Insert the system pool. */ - const uintptr_t system_pool_size = pool_management_start - pool_partitions_start; - InsertPoolPartitionRegionIntoBothTrees(pool_partitions_start, system_pool_size, KMemoryRegionType_DramSystemPool, KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr); } else { /* On < 5.0.0, setup a legacy 2-pool layout for backwards compatibility. */ @@ -249,14 +253,18 @@ namespace ams::kern { total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(second_application_pool_size); } - /* Insert the secure pool. */ - InsertPoolPartitionRegionIntoBothTrees(pool_partitions_start, secure_pool_size, KMemoryRegionType_DramSystemPool, KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr); - - /* Insert the pool management region. */ + /* Validate the true overhead size. */ MESOSPHERE_INIT_ABORT_UNLESS(total_overhead_size <= approximate_total_overhead_size); - const uintptr_t pool_management_start = pool_partitions_start + secure_pool_size; - const size_t pool_management_size = unsafe_memory_start - pool_management_start; + /* NOTE: Nintendo's kernel has layout [System, Management] but we have [Management, System]. This ensures the UserPool regions are contiguous. */ + + /* Insert the secure pool. */ + const uintptr_t secure_pool_start = unsafe_memory_start - secure_pool_size; + InsertPoolPartitionRegionIntoBothTrees(secure_pool_start, secure_pool_size, KMemoryRegionType_DramSystemPool, KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr); + + /* Insert the pool management region. */ + const uintptr_t pool_management_start = pool_partitions_start; + const size_t pool_management_size = secure_pool_start - pool_management_start; MESOSPHERE_INIT_ABORT_UNLESS(total_overhead_size <= pool_management_size); u32 pool_management_attr = 0; diff --git a/libraries/libmesosphere/source/kern_k_memory_layout.board.qemu_virt.cpp b/libraries/libmesosphere/source/kern_k_memory_layout.board.qemu_virt.cpp index 578761d65..34631169a 100644 --- a/libraries/libmesosphere/source/kern_k_memory_layout.board.qemu_virt.cpp +++ b/libraries/libmesosphere/source/kern_k_memory_layout.board.qemu_virt.cpp @@ -19,12 +19,8 @@ namespace ams::kern { namespace { - constexpr uintptr_t DramPhysicalAddress = 0x40000000; constexpr size_t ReservedEarlyDramSize = 0x00080000; - constexpr size_t CarveoutAlignment = 0x20000; - constexpr size_t CarveoutSizeMax = 512_MB - CarveoutAlignment; - template requires (std::same_as && ...) constexpr ALWAYS_INLINE KMemoryRegionType GetMemoryRegionType(KMemoryRegionType base, T... attr) { return util::FromUnderlying(util::ToUnderlying(base) | (util::ToUnderlying(attr) | ...)); @@ -32,6 +28,7 @@ namespace ams::kern { void InsertPoolPartitionRegionIntoBothTrees(size_t start, size_t size, KMemoryRegionType phys_type, KMemoryRegionType virt_type, u32 &cur_attr) { const u32 attr = cur_attr++; + MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(start, size, phys_type, attr)); const KMemoryRegion *phys = KMemoryLayout::GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(phys_type, attr); MESOSPHERE_INIT_ABORT_UNLESS(phys != nullptr); @@ -50,7 +47,7 @@ namespace ams::kern { void SetupDramPhysicalMemoryRegions() { const size_t intended_memory_size = KSystemControl::Init::GetIntendedMemorySize(); - const KPhysicalAddress physical_memory_base_address = KSystemControl::Init::GetKernelPhysicalBaseAddress(DramPhysicalAddress); + const KPhysicalAddress physical_memory_base_address = KSystemControl::Init::GetKernelPhysicalBaseAddress(ams::kern::MainMemoryAddress); /* Insert blocks into the tree. */ MESOSPHERE_INIT_ABORT_UNLESS(KMemoryLayout::GetPhysicalMemoryRegionTree().Insert(GetInteger(physical_memory_base_address), intended_memory_size, KMemoryRegionType_Dram)); @@ -76,9 +73,6 @@ namespace ams::kern { const KMemoryRegion *kernel_dram_region = KMemoryLayout::GetPhysicalMemoryRegionTree().FindFirstDerived(KMemoryRegionType_DramKernelBase); MESOSPHERE_INIT_ABORT_UNLESS(kernel_dram_region != nullptr); - const uintptr_t kernel_dram_start = kernel_dram_region->GetAddress(); - MESOSPHERE_INIT_ABORT_UNLESS(util::IsAligned(kernel_dram_start, CarveoutAlignment)); - /* Find the start of the pool partitions region. */ const KMemoryRegion *pool_partitions_region = KMemoryLayout::GetPhysicalMemoryRegionTree().FindByTypeAndAttribute(KMemoryRegionType_DramPoolPartition, 0); MESOSPHERE_INIT_ABORT_UNLESS(pool_partitions_region != nullptr); @@ -93,43 +87,56 @@ namespace ams::kern { /* Decide on starting addresses for our pools. */ const uintptr_t application_pool_start = pool_end - application_pool_size; const uintptr_t applet_pool_start = application_pool_start - applet_pool_size; - const uintptr_t unsafe_system_pool_start = std::min(kernel_dram_start + CarveoutSizeMax, util::AlignDown(applet_pool_start - unsafe_system_pool_min_size, CarveoutAlignment)); + const uintptr_t unsafe_system_pool_start = util::AlignDown(applet_pool_start - unsafe_system_pool_min_size, PageSize); 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 uintptr_t 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(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(application_pool_start, first_application_pool_size, KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool, cur_pool_attr); - InsertPoolPartitionRegionIntoBothTrees(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 application pool. */ + if (application_pool_size > 0) { + if (dram_extents.GetEndAddress() <= dram_midpoint || dram_midpoint <= application_pool_start) { + InsertPoolPartitionRegionIntoBothTrees(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(application_pool_start, first_application_pool_size, KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool, cur_pool_attr); + InsertPoolPartitionRegionIntoBothTrees(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(applet_pool_start, applet_pool_size, KMemoryRegionType_DramAppletPool, KMemoryRegionType_VirtualDramAppletPool, cur_pool_attr); - total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(applet_pool_size); + if (applet_pool_size > 0) { + InsertPoolPartitionRegionIntoBothTrees(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(unsafe_system_pool_start, unsafe_system_pool_size, KMemoryRegionType_DramSystemNonSecurePool, KMemoryRegionType_VirtualDramSystemNonSecurePool, cur_pool_attr); - total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(unsafe_system_pool_size); + if (unsafe_system_pool_size > 0) { + InsertPoolPartitionRegionIntoBothTrees(unsafe_system_pool_start, unsafe_system_pool_size, KMemoryRegionType_DramSystemNonSecurePool, KMemoryRegionType_VirtualDramSystemNonSecurePool, cur_pool_attr); + total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(unsafe_system_pool_size); + } + + /* Determine final total overhead size. */ + total_overhead_size += KMemoryManager::CalculateManagementOverheadSize((unsafe_system_pool_start - pool_partitions_start) - total_overhead_size); + + /* NOTE: Nintendo's kernel has layout [System, Management] but we have [Management, System]. This ensures the four UserPool regions are contiguous. */ + + /* Insert the system pool. */ + const uintptr_t system_pool_start = pool_partitions_start + total_overhead_size; + const size_t system_pool_size = unsafe_system_pool_start - system_pool_start; + InsertPoolPartitionRegionIntoBothTrees(system_pool_start, system_pool_size, KMemoryRegionType_DramSystemPool, KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr); /* Insert the pool management region. */ - total_overhead_size += KMemoryManager::CalculateManagementOverheadSize((unsafe_system_pool_start - pool_partitions_start) - total_overhead_size); - const uintptr_t pool_management_start = unsafe_system_pool_start - total_overhead_size; + const uintptr_t pool_management_start = pool_partitions_start; const size_t pool_management_size = total_overhead_size; u32 pool_management_attr = 0; InsertPoolPartitionRegionIntoBothTrees(pool_management_start, pool_management_size, KMemoryRegionType_DramPoolManagement, KMemoryRegionType_VirtualDramPoolManagement, pool_management_attr); - - /* Insert the system pool. */ - const uintptr_t system_pool_size = pool_management_start - pool_partitions_start; - InsertPoolPartitionRegionIntoBothTrees(pool_partitions_start, system_pool_size, KMemoryRegionType_DramSystemPool, KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr); } } diff --git a/libraries/libmesosphere/source/kern_k_process.cpp b/libraries/libmesosphere/source/kern_k_process.cpp index 4bfa6a158..5b2b509fe 100644 --- a/libraries/libmesosphere/source/kern_k_process.cpp +++ b/libraries/libmesosphere/source/kern_k_process.cpp @@ -238,7 +238,7 @@ namespace ams::kern { } /* Generate random entropy. */ - KSystemControl::GenerateRandomBytes(m_entropy, sizeof(m_entropy)); + KSystemControl::GenerateRandom(m_entropy, util::size(m_entropy)); /* Clear remaining fields. */ m_num_running_threads = 0; diff --git a/libraries/libmesosphere/source/kern_k_system_control_base.cpp b/libraries/libmesosphere/source/kern_k_system_control_base.cpp new file mode 100644 index 000000000..a0cf3dfc0 --- /dev/null +++ b/libraries/libmesosphere/source/kern_k_system_control_base.cpp @@ -0,0 +1,295 @@ +/* + * Copyright (c) Atmosphère-NX + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +#include +#if defined(ATMOSPHERE_ARCH_ARM64) +#include +#endif + +namespace ams::kern { + + /* Initialization. */ + size_t KSystemControlBase::Init::GetRealMemorySize() { + return ams::kern::MainMemorySize; + } + + size_t KSystemControlBase::Init::GetIntendedMemorySize() { + return ams::kern::MainMemorySize; + } + + KPhysicalAddress KSystemControlBase::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); + } + } + + void KSystemControlBase::Init::GetInitialProcessBinaryLayout(InitialProcessBinaryLayout *out) { + *out = { + .address = GetInteger(KSystemControl::Init::GetKernelPhysicalBaseAddress(ams::kern::MainMemoryAddress)) + KSystemControl::Init::GetIntendedMemorySize() - KTraceBufferSize - InitialProcessBinarySizeMax, + ._08 = 0, + }; + } + + + bool KSystemControlBase::Init::ShouldIncreaseThreadResourceLimit() { + return true; + } + + + size_t KSystemControlBase::Init::GetApplicationPoolSize() { + return 0; + } + + size_t KSystemControlBase::Init::GetAppletPoolSize() { + return 0; + } + + size_t KSystemControlBase::Init::GetMinimumNonSecureSystemPoolSize() { + return 0; + } + + u8 KSystemControlBase::Init::GetDebugLogUartPort() { + return 0; + } + + void KSystemControlBase::Init::CpuOn(u64 core_id, uintptr_t entrypoint, uintptr_t arg) { + #if defined(ATMOSPHERE_ARCH_ARM64) + MESOSPHERE_INIT_ABORT_UNLESS((::ams::kern::arch::arm64::smc::CpuOn<0, false>(core_id, entrypoint, arg)) == 0); + #else + AMS_INFINITE_LOOP(); + #endif + } + + /* Randomness for Initialization. */ + void KSystemControlBase::Init::GenerateRandom(u64 *dst, size_t count) { + if (AMS_UNLIKELY(!s_initialized_random_generator)) { + const u64 seed = KHardwareTimer::GetTick(); + s_random_generator.Initialize(reinterpret_cast(std::addressof(seed)), sizeof(seed) / sizeof(u32)); + s_initialized_random_generator = true; + } + + for (size_t i = 0; i < count; ++i) { + dst[i] = s_random_generator.GenerateRandomU64(); + } + } + + u64 KSystemControlBase::Init::GenerateRandomRange(u64 min, u64 max) { + if (AMS_UNLIKELY(!s_initialized_random_generator)) { + const u64 seed = KHardwareTimer::GetTick(); + s_random_generator.Initialize(reinterpret_cast(std::addressof(seed)), sizeof(seed) / sizeof(u32)); + s_initialized_random_generator = true; + } + + return KSystemControlBase::GenerateUniformRange(min, max, [] ALWAYS_INLINE_LAMBDA () -> u64 { return s_random_generator.GenerateRandomU64(); }); + } + + /* System Initialization. */ + void KSystemControlBase::InitializePhase1(bool skip_target_system) { + /* Initialize the rng, if we somehow haven't already. */ + if (AMS_UNLIKELY(!s_initialized_random_generator)) { + const u64 seed = KHardwareTimer::GetTick(); + s_random_generator.Initialize(reinterpret_cast(std::addressof(seed)), sizeof(seed) / sizeof(u32)); + s_initialized_random_generator = true; + } + + /* Configure KTargetSystem, if we haven't already by an implementation SystemControl. */ + if (!skip_target_system) { + /* Set IsDebugMode. */ + { + KTargetSystem::SetIsDebugMode(true); + + /* If debug mode, we want to initialize uart logging. */ + KTargetSystem::EnableDebugLogging(true); + KDebugLog::Initialize(); + } + + /* Set Kernel Configuration. */ + { + KTargetSystem::EnableDebugMemoryFill(false); + KTargetSystem::EnableUserExceptionHandlers(true); + KTargetSystem::EnableDynamicResourceLimits(true); + KTargetSystem::EnableUserPmuAccess(false); + } + + /* Set Kernel Debugging. */ + { + /* NOTE: This is used to restrict access to SvcKernelDebug/SvcChangeKernelTraceState. */ + /* Mesosphere may wish to not require this, as we'd ideally keep ProgramVerification enabled for userland. */ + KTargetSystem::EnableKernelDebugging(true); + } + } + + /* System ResourceLimit initialization. */ + { + /* Construct the resource limit object. */ + KResourceLimit &sys_res_limit = Kernel::GetSystemResourceLimit(); + KAutoObject::Create(std::addressof(sys_res_limit)); + sys_res_limit.Initialize(); + + /* Set the initial limits. */ + const auto [total_memory_size, kernel_memory_size] = KMemoryLayout::GetTotalAndKernelMemorySizes(); + const auto &slab_counts = init::GetSlabResourceCounts(); + MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_PhysicalMemoryMax, total_memory_size)); + MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_ThreadCountMax, slab_counts.num_KThread)); + MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_EventCountMax, slab_counts.num_KEvent)); + MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_TransferMemoryCountMax, slab_counts.num_KTransferMemory)); + MESOSPHERE_R_ABORT_UNLESS(sys_res_limit.SetLimitValue(ams::svc::LimitableResource_SessionCountMax, slab_counts.num_KSession)); + + /* Reserve system memory. */ + MESOSPHERE_ABORT_UNLESS(sys_res_limit.Reserve(ams::svc::LimitableResource_PhysicalMemoryMax, kernel_memory_size)); + } + } + + void KSystemControlBase::InitializePhase2() { + /* Initialize KTrace. */ + if constexpr (IsKTraceEnabled) { + const auto &ktrace = KMemoryLayout::GetKernelTraceBufferRegion(); + KTrace::Initialize(ktrace.GetAddress(), ktrace.GetSize()); + } + } + + u32 KSystemControlBase::GetCreateProcessMemoryPool() { + return KMemoryManager::Pool_System; + } + + /* Privileged Access. */ + void KSystemControlBase::ReadWriteRegisterPrivileged(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value) { + /* TODO */ + MESOSPHERE_UNUSED(out, address, mask, value); + MESOSPHERE_UNIMPLEMENTED(); + } + + Result KSystemControlBase::ReadWriteRegister(u32 *out, ams::svc::PhysicalAddress address, u32 mask, u32 value) { + MESOSPHERE_UNUSED(out, address, mask, value); + return svc::ResultNotImplemented(); + } + + /* Randomness. */ + void KSystemControlBase::GenerateRandom(u64 *dst, size_t count) { + KScopedInterruptDisable intr_disable; + KScopedSpinLock lk(s_random_lock); + + for (size_t i = 0; i < count; ++i) { + dst[i] = s_random_generator.GenerateRandomU64(); + } + } + + u64 KSystemControlBase::GenerateRandomRange(u64 min, u64 max) { + KScopedInterruptDisable intr_disable; + KScopedSpinLock lk(s_random_lock); + + return KSystemControlBase::GenerateUniformRange(min, max, [] ALWAYS_INLINE_LAMBDA () -> u64 { return s_random_generator.GenerateRandomU64(); }); + } + + u64 KSystemControlBase::GenerateRandomU64() { + KScopedInterruptDisable intr_disable; + KScopedSpinLock lk(s_random_lock); + + return s_random_generator.GenerateRandomU64(); + } + + void KSystemControlBase::SleepSystem() { + MESOSPHERE_LOG("SleepSystem() was called\n"); + } + + void KSystemControlBase::StopSystem(void *) { + MESOSPHERE_LOG("KSystemControlBase::StopSystem\n"); + AMS_INFINITE_LOOP(); + } + + /* User access. */ + #if defined(ATMOSPHERE_ARCH_ARM64) + void KSystemControlBase::CallSecureMonitorFromUser(ams::svc::lp64::SecureMonitorArguments *args) { + /* Get the function id for the current call. */ + u64 function_id = args->r[0]; + + /* We'll need to map in pages if arguments are pointers. Prepare page groups to do so. */ + auto &page_table = GetCurrentProcess().GetPageTable(); + auto *bim = page_table.GetBlockInfoManager(); + + constexpr size_t MaxMappedRegisters = 7; + std::array page_groups = { KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), KPageGroup(bim), }; + + for (size_t i = 0; i < MaxMappedRegisters; i++) { + const size_t reg_id = i + 1; + if (function_id & (1ul << (8 + reg_id))) { + /* Create and open a new page group for the address. */ + KVirtualAddress virt_addr = args->r[reg_id]; + + if (R_SUCCEEDED(page_table.MakeAndOpenPageGroup(std::addressof(page_groups[i]), util::AlignDown(GetInteger(virt_addr), PageSize), 1, KMemoryState_None, KMemoryState_None, KMemoryPermission_UserReadWrite, KMemoryPermission_UserReadWrite, KMemoryAttribute_None, KMemoryAttribute_None))) { + /* Translate the virtual address to a physical address. */ + const auto it = page_groups[i].begin(); + MESOSPHERE_ASSERT(it != page_groups[i].end()); + MESOSPHERE_ASSERT(it->GetNumPages() == 1); + + args->r[reg_id] = GetInteger(it->GetAddress()) | (GetInteger(virt_addr) & (PageSize - 1)); + } else { + /* If we couldn't map, we should clear the address. */ + args->r[reg_id] = 0; + } + } + } + + /* Invoke the secure monitor. */ + KSystemControl::CallSecureMonitorFromUserImpl(args); + + /* Make sure that we close any pages that we opened. */ + for (size_t i = 0; i < MaxMappedRegisters; i++) { + page_groups[i].Close(); + } + } + + void KSystemControlBase::CallSecureMonitorFromUserImpl(ams::svc::lp64::SecureMonitorArguments *args) { + /* By default, we don't actually support secure monitor, so just set args to a failure code. */ + args->r[0] = 1; + } + #endif + + /* Secure Memory. */ + size_t KSystemControlBase::CalculateRequiredSecureMemorySize(size_t size, u32 pool) { + MESOSPHERE_UNUSED(pool); + return size; + } + + Result KSystemControlBase::AllocateSecureMemory(KVirtualAddress *out, size_t size, u32 pool) { + /* Ensure the size is aligned. */ + constexpr size_t Alignment = PageSize; + R_UNLESS(util::IsAligned(size, Alignment), svc::ResultInvalidSize()); + + /* Allocate the memory. */ + const size_t num_pages = size / PageSize; + const KPhysicalAddress paddr = Kernel::GetMemoryManager().AllocateAndOpenContinuous(num_pages, Alignment / PageSize, KMemoryManager::EncodeOption(static_cast(pool), KMemoryManager::Direction_FromFront)); + R_UNLESS(paddr != Null, svc::ResultOutOfMemory()); + + *out = KPageTable::GetHeapVirtualAddress(paddr); + return ResultSuccess(); + } + + void KSystemControlBase::FreeSecureMemory(KVirtualAddress address, size_t size, u32 pool) { + /* Ensure the size is aligned. */ + constexpr size_t Alignment = PageSize; + MESOSPHERE_UNUSED(pool); + MESOSPHERE_ABORT_UNLESS(util::IsAligned(GetInteger(address), Alignment)); + MESOSPHERE_ABORT_UNLESS(util::IsAligned(size, Alignment)); + + /* Close the secure region's pages. */ + Kernel::GetMemoryManager().Close(KPageTable::GetHeapPhysicalAddress(address), size / PageSize); + } + +} \ No newline at end of file diff --git a/libraries/libmesosphere/source/kern_kernel.cpp b/libraries/libmesosphere/source/kern_kernel.cpp index 090d5028b..a6e9b15a5 100644 --- a/libraries/libmesosphere/source/kern_kernel.cpp +++ b/libraries/libmesosphere/source/kern_kernel.cpp @@ -139,14 +139,20 @@ namespace ams::kern { PrintMemoryRegion(" InitPageTable", KMemoryLayout::GetKernelInitPageTableRegionPhysicalExtents()); PrintMemoryRegion(" MemoryPoolRegion", KMemoryLayout::GetKernelPoolPartitionRegionPhysicalExtents()); if (GetTargetFirmware() >= TargetFirmware_5_0_0) { - PrintMemoryRegion(" System", KMemoryLayout::GetKernelSystemPoolRegionPhysicalExtents()); PrintMemoryRegion(" Management", KMemoryLayout::GetKernelPoolManagementRegionPhysicalExtents()); - PrintMemoryRegion(" SystemUnsafe", KMemoryLayout::GetKernelSystemNonSecurePoolRegionPhysicalExtents()); - PrintMemoryRegion(" Applet", KMemoryLayout::GetKernelAppletPoolRegionPhysicalExtents()); - PrintMemoryRegion(" Application", KMemoryLayout::GetKernelApplicationPoolRegionPhysicalExtents()); + PrintMemoryRegion(" System", KMemoryLayout::GetKernelSystemPoolRegionPhysicalExtents()); + if (KMemoryLayout::HasKernelSystemNonSecurePoolRegion()) { + PrintMemoryRegion(" SystemUnsafe", KMemoryLayout::GetKernelSystemNonSecurePoolRegionPhysicalExtents()); + } + if (KMemoryLayout::HasKernelAppletPoolRegion()) { + PrintMemoryRegion(" Applet", KMemoryLayout::GetKernelAppletPoolRegionPhysicalExtents()); + } + if (KMemoryLayout::HasKernelApplicationPoolRegion()) { + PrintMemoryRegion(" Application", KMemoryLayout::GetKernelApplicationPoolRegionPhysicalExtents()); + } } else { - PrintMemoryRegion(" Secure", KMemoryLayout::GetKernelSystemPoolRegionPhysicalExtents()); PrintMemoryRegion(" Management", KMemoryLayout::GetKernelPoolManagementRegionPhysicalExtents()); + PrintMemoryRegion(" Secure", KMemoryLayout::GetKernelSystemPoolRegionPhysicalExtents()); PrintMemoryRegion(" Unsafe", KMemoryLayout::GetKernelApplicationPoolRegionPhysicalExtents()); } if constexpr (IsKTraceEnabled) { diff --git a/libraries/libmesosphere/source/svc/kern_svc_cache.cpp b/libraries/libmesosphere/source/svc/kern_svc_cache.cpp index 07576c889..fe76b399b 100644 --- a/libraries/libmesosphere/source/svc/kern_svc_cache.cpp +++ b/libraries/libmesosphere/source/svc/kern_svc_cache.cpp @@ -36,7 +36,7 @@ namespace ams::kern::svc { size_t remaining = size; while (remaining > 0) { /* Get a contiguous range to operate on. */ - KPageTableBase::MemoryRange contig_range = {}; + KPageTableBase::MemoryRange contig_range = { .address = Null, .size = 0 }; R_TRY(page_table.OpenMemoryRangeForProcessCacheOperation(std::addressof(contig_range), cur_address, aligned_end - cur_address)); /* Close the range when we're done operating on it. */