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kern: implement K(Secure)SystemResource

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This commit is contained in:
Michael Scire 2022-10-11 21:32:56 -07:00 committed by SciresM
parent 752704a798
commit 2e73f33eb0
20 changed files with 413 additions and 200 deletions
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2
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_page_table.hpp
View file

@ -178,7 +178,7 @@ namespace ams::kern::arch::arm64 {
}
NOINLINE Result InitializeForKernel(void *table, KVirtualAddress start, KVirtualAddress end);
NOINLINE Result InitializeForProcess(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager, KResourceLimit *resource_limit);
NOINLINE Result InitializeForProcess(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KSystemResource *system_resource, KResourceLimit *resource_limit);
Result Finalize();
private:
Result MapL1Blocks(KProcessAddress virt_addr, KPhysicalAddress phys_addr, size_t num_pages, PageTableEntry entry_template, bool disable_head_merge, PageLinkedList *page_list, bool reuse_ll);

4
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_process_page_table.hpp
View file

@ -28,8 +28,8 @@ namespace ams::kern::arch::arm64 {
m_page_table.Activate(id);
}
Result Initialize(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager, KResourceLimit *resource_limit) {
R_RETURN(m_page_table.InitializeForProcess(id, as_type, enable_aslr, enable_das_merge, from_back, pool, code_address, code_size, mem_block_slab_manager, block_info_manager, pt_manager, resource_limit));
Result Initialize(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KSystemResource *system_resource, KResourceLimit *resource_limit) {
R_RETURN(m_page_table.InitializeForProcess(id, as_type, enable_aslr, enable_das_merge, from_back, pool, code_address, code_size, system_resource, resource_limit));
}
void Finalize() { m_page_table.Finalize(); }

17
libraries/libmesosphere/include/mesosphere/kern_k_class_token.hpp
View file

@ -21,6 +21,8 @@ namespace ams::kern {
class KAutoObject;
class KSystemResource;
#define FOR_EACH_K_CLASS_TOKEN_OBJECT_TYPE(HANDLER) \
HANDLER(KAutoObject) \
\
@ -48,7 +50,8 @@ namespace ams::kern {
HANDLER(KSessionRequest) \
HANDLER(KCodeMemory) \
HANDLER(KIoPool) \
HANDLER(KIoRegion)
HANDLER(KIoRegion) \
HANDLER(KSystemResource)
class KClassTokenGenerator {
public:
@ -95,7 +98,7 @@ namespace ams::kern {
if constexpr (std::is_same<T, KAutoObject>::value) {
static_assert(T::ObjectType == ObjectType::KAutoObject);
return 0;
} else if constexpr (!std::is_final<T>::value) {
} else if constexpr (!std::is_final<T>::value && !std::same_as<T, KSystemResource>) {
static_assert(ObjectType::BaseClassesStart <= T::ObjectType && T::ObjectType < ObjectType::BaseClassesEnd);
constexpr auto ClassIndex = static_cast<TokenBaseType>(T::ObjectType) - static_cast<TokenBaseType>(ObjectType::BaseClassesStart);
return BaseClassToken<ClassIndex> | GetClassToken<typename T::BaseClass>();
@ -142,6 +145,12 @@ namespace ams::kern {
KIoPool,
KIoRegion,
/* NOTE: What occupies these gaps? They can be inferred, but they don't make sense. */
KAlpha,
KBeta,
KSystemResource,
FinalClassesLast,
FinalClassesEnd = FinalClassesStart + NumFinalClasses,
@ -178,10 +187,12 @@ namespace ams::kern {
}
for (auto fin = util::ToUnderlying(KClassTokenGenerator::ObjectType::FinalClassesStart); fin < util::ToUnderlying(KClassTokenGenerator::ObjectType::FinalClassesLast); ++fin) {
if (!IsObjectTypeIncludedByMacro(static_cast<KClassTokenGenerator::ObjectType>(fin))) {
if (const auto o = static_cast<KClassTokenGenerator::ObjectType>(fin); !IsObjectTypeIncludedByMacro(o)) {
if (o != KClassTokenGenerator::ObjectType::KAlpha && o != KClassTokenGenerator::ObjectType::KBeta) {
return false;
}
}
}
return true;
}

3
libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp
View file

@ -48,6 +48,7 @@ namespace ams::kern {
static_assert(sizeof(KPageProperties) == sizeof(u32));
class KResourceLimit;
class KSystemResource;
class KPageTableBase {
NON_COPYABLE(KPageTableBase);
@ -200,7 +201,7 @@ namespace ams::kern {
explicit KPageTableBase() { /* ... */ }
NOINLINE Result InitializeForKernel(bool is_64_bit, void *table, KVirtualAddress start, KVirtualAddress end);
NOINLINE Result InitializeForProcess(ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_device_address_space_merge, bool from_back, KMemoryManager::Pool pool, void *table, KProcessAddress start, KProcessAddress end, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KResourceLimit *resource_limit);
NOINLINE Result InitializeForProcess(ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_device_address_space_merge, bool from_back, KMemoryManager::Pool pool, void *table, KProcessAddress start, KProcessAddress end, KProcessAddress code_address, size_t code_size, KSystemResource *system_resource, KResourceLimit *resource_limit);
void Finalize();

30
libraries/libmesosphere/include/mesosphere/kern_k_process.hpp
View file

@ -31,6 +31,7 @@
#include <mesosphere/kern_k_wait_object.hpp>
#include <mesosphere/kern_k_dynamic_resource_manager.hpp>
#include <mesosphere/kern_k_page_table_manager.hpp>
#include <mesosphere/kern_k_system_resource.hpp>
namespace ams::kern {
@ -64,8 +65,7 @@ namespace ams::kern {
s32 m_ideal_core_id;
void *m_attached_object;
KResourceLimit *m_resource_limit;
KVirtualAddress m_system_resource_address;
size_t m_system_resource_num_pages;
KSystemResource *m_system_resource;
size_t m_memory_release_hint;
State m_state;
KLightLock m_state_lock;
@ -117,13 +117,6 @@ namespace ams::kern {
util::Atomic<s64> m_num_ipc_messages;
util::Atomic<s64> m_num_ipc_replies;
util::Atomic<s64> m_num_ipc_receives;
KDynamicPageManager m_dynamic_page_manager;
KMemoryBlockSlabManager m_memory_block_slab_manager;
KBlockInfoManager m_block_info_manager;
KPageTableManager m_page_table_manager;
KMemoryBlockSlabHeap m_memory_block_heap;
KBlockInfoSlabHeap m_block_info_heap;
KPageTableSlabHeap m_page_table_heap;
private:
Result Initialize(const ams::svc::CreateProcessParameter &params);
@ -284,12 +277,12 @@ namespace ams::kern {
void IncrementRunningThreadCount();
void DecrementRunningThreadCount();
size_t GetTotalSystemResourceSize() const { return m_system_resource_num_pages * PageSize; }
size_t GetUsedSystemResourceSize() const {
if (m_system_resource_num_pages == 0) {
return 0;
size_t GetTotalSystemResourceSize() const {
return m_system_resource->IsSecureResource() ? static_cast<KSecureSystemResource *>(m_system_resource)->GetSize() : 0;
}
return m_dynamic_page_manager.GetUsed() * PageSize;
size_t GetUsedSystemResourceSize() const {
return m_system_resource->IsSecureResource() ? static_cast<KSecureSystemResource *>(m_system_resource)->GetUsedSize() : 0;
}
void SetRunningThread(s32 core, KThread *thread, u64 idle_count) {
@ -305,10 +298,11 @@ namespace ams::kern {
}
}
const KDynamicPageManager &GetDynamicPageManager() const { return m_dynamic_page_manager; }
const KMemoryBlockSlabManager &GetMemoryBlockSlabManager() const { return m_memory_block_slab_manager; }
const KBlockInfoManager &GetBlockInfoManager() const { return m_block_info_manager; }
const KPageTableManager &GetPageTableManager() const { return m_page_table_manager; }
const KSystemResource &GetSystemResource() const { return *m_system_resource; }
const KMemoryBlockSlabManager &GetMemoryBlockSlabManager() const { return m_system_resource->GetMemoryBlockSlabManager(); }
const KBlockInfoManager &GetBlockInfoManager() const { return m_system_resource->GetBlockInfoManager(); }
const KPageTableManager &GetPageTableManager() const { return m_system_resource->GetPageTableManager(); }
constexpr KThread *GetRunningThread(s32 core) const { return m_running_threads[core]; }
constexpr u64 GetRunningThreadIdleCount(s32 core) const { return m_running_thread_idle_counts[core]; }

2
libraries/libmesosphere/include/mesosphere/kern_k_shared_memory.hpp
View file

@ -35,7 +35,7 @@ namespace ams::kern {
bool m_is_initialized;
public:
explicit KSharedMemory()
: m_page_group(std::addressof(Kernel::GetSystemBlockInfoManager())), m_resource_limit(nullptr), m_owner_process_id(std::numeric_limits<u64>::max()),
: m_page_group(Kernel::GetSystemSystemResource().GetBlockInfoManagerPointer()), m_resource_limit(nullptr), m_owner_process_id(std::numeric_limits<u64>::max()),
m_owner_perm(ams::svc::MemoryPermission_None), m_remote_perm(ams::svc::MemoryPermission_None), m_is_initialized(false)
{
/* ... */

108
libraries/libmesosphere/include/mesosphere/kern_k_system_resource.hpp Normal file
View file

@ -0,0 +1,108 @@
/*
* 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 <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/kern_k_auto_object.hpp>
#include <mesosphere/kern_slab_helpers.hpp>
#include <mesosphere/kern_k_memory_manager.hpp>
#include <mesosphere/kern_k_dynamic_resource_manager.hpp>
#include <mesosphere/kern_k_page_table_manager.hpp>
#include <mesosphere/kern_k_resource_limit.hpp>
namespace ams::kern {
/* NOTE: Nintendo's implementation does not have the "is_secure_resource" field, and instead uses virtual IsSecureResource(). */
class KSystemResource : public KAutoObject {
MESOSPHERE_AUTOOBJECT_TRAITS(KSystemResource, KAutoObject);
private:
KMemoryBlockSlabManager *m_p_memory_block_slab_manager{};
KBlockInfoManager *m_p_block_info_manager{};
KPageTableManager *m_p_page_table_manager{};
bool m_is_secure_resource{false};
public:
explicit KSystemResource() : KAutoObject() { /* ... */ }
constexpr explicit KSystemResource(util::ConstantInitializeTag) : KAutoObject(util::ConstantInitialize) { /* ... */ }
protected:
ALWAYS_INLINE void SetSecureResource() { m_is_secure_resource = true; }
public:
virtual void Destroy() override { MESOSPHERE_PANIC("KSystemResource::Destroy() was called"); }
ALWAYS_INLINE bool IsSecureResource() const { return m_is_secure_resource; }
void SetManagers(KMemoryBlockSlabManager &mb, KBlockInfoManager &bi, KPageTableManager &pt) {
MESOSPHERE_ASSERT(m_p_memory_block_slab_manager == nullptr);
MESOSPHERE_ASSERT(m_p_block_info_manager == nullptr);
MESOSPHERE_ASSERT(m_p_page_table_manager == nullptr);
m_p_memory_block_slab_manager = std::addressof(mb);
m_p_block_info_manager = std::addressof(bi);
m_p_page_table_manager = std::addressof(pt);
}
const KMemoryBlockSlabManager &GetMemoryBlockSlabManager() const { return *m_p_memory_block_slab_manager; }
const KBlockInfoManager &GetBlockInfoManager() const { return *m_p_block_info_manager; }
const KPageTableManager &GetPageTableManager() const { return *m_p_page_table_manager; }
KMemoryBlockSlabManager &GetMemoryBlockSlabManager() { return *m_p_memory_block_slab_manager; }
KBlockInfoManager &GetBlockInfoManager() { return *m_p_block_info_manager; }
KPageTableManager &GetPageTableManager() { return *m_p_page_table_manager; }
KMemoryBlockSlabManager *GetMemoryBlockSlabManagerPointer() { return m_p_memory_block_slab_manager; }
KBlockInfoManager *GetBlockInfoManagerPointer() { return m_p_block_info_manager; }
KPageTableManager *GetPageTableManagerPointer() { return m_p_page_table_manager; }
};
class KSecureSystemResource final : public KAutoObjectWithSlabHeap<KSecureSystemResource, KSystemResource> {
private:
bool m_is_initialized;
KMemoryManager::Pool m_resource_pool;
KDynamicPageManager m_dynamic_page_manager;
KMemoryBlockSlabManager m_memory_block_slab_manager;
KBlockInfoManager m_block_info_manager;
KPageTableManager m_page_table_manager;
KMemoryBlockSlabHeap m_memory_block_heap;
KBlockInfoSlabHeap m_block_info_heap;
KPageTableSlabHeap m_page_table_heap;
KResourceLimit *m_resource_limit;
KVirtualAddress m_resource_address;
size_t m_resource_size;
public:
explicit KSecureSystemResource() : m_is_initialized(false), m_resource_limit(nullptr) {
/* Mark ourselves as being a secure resource. */
this->SetSecureResource();
}
Result Initialize(size_t size, KResourceLimit *resource_limit, KMemoryManager::Pool pool);
void Finalize();
bool IsInitialized() const { return m_is_initialized; }
static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
ALWAYS_INLINE size_t CalculateRequiredSecureMemorySize() const {
return CalculateRequiredSecureMemorySize(m_resource_size, m_resource_pool);
}
ALWAYS_INLINE size_t GetSize() const { return m_resource_size; }
ALWAYS_INLINE size_t GetUsedSize() const { return m_dynamic_page_manager.GetUsed() * PageSize; }
const KDynamicPageManager &GetDynamicPageManager() const { return m_dynamic_page_manager; }
public:
static size_t CalculateRequiredSecureMemorySize(size_t size, KMemoryManager::Pool pool);
};
}

26
libraries/libmesosphere/include/mesosphere/kern_kernel.hpp
View file

@ -78,6 +78,8 @@ namespace ams::kern {
static KMemoryBlockSlabManager s_sys_memory_block_manager;
static KBlockInfoManager s_app_block_info_manager;
static KBlockInfoManager s_sys_block_info_manager;
static KSystemResource s_app_system_resource;
static KSystemResource s_sys_system_resource;
static KSupervisorPageTable s_supervisor_page_table;
static KUnsafeMemory s_unsafe_memory;
static KWorkerTaskManager s_worker_task_managers[KWorkerTaskManager::WorkerType_Count];
@ -129,28 +131,12 @@ namespace ams::kern {
return s_memory_manager;
}
static ALWAYS_INLINE KMemoryBlockSlabManager &GetApplicationMemoryBlockManager() {
return s_app_memory_block_manager;
static ALWAYS_INLINE KSystemResource &GetApplicationSystemResource() {
return s_app_system_resource;
}
static ALWAYS_INLINE KMemoryBlockSlabManager &GetSystemMemoryBlockManager() {
return s_sys_memory_block_manager;
}
static ALWAYS_INLINE KBlockInfoManager &GetApplicationBlockInfoManager() {
return s_app_block_info_manager;
}
static ALWAYS_INLINE KBlockInfoManager &GetSystemBlockInfoManager() {
return s_sys_block_info_manager;
}
static ALWAYS_INLINE KPageTableManager &GetApplicationPageTableManager() {
return s_app_page_table_manager;
}
static ALWAYS_INLINE KPageTableManager &GetSystemPageTableManager() {
return s_sys_page_table_manager;
static ALWAYS_INLINE KSystemResource &GetSystemSystemResource() {
return s_sys_system_resource;
}
static ALWAYS_INLINE KSupervisorPageTable &GetKernelPageTable() {

71
libraries/libmesosphere/include/mesosphere/kern_slab_helpers.hpp
View file

@ -64,11 +64,13 @@ namespace ams::kern {
static size_t GetNumRemaining() { return s_slab_heap.GetNumRemaining(); }
};
template<typename Derived, typename Base, bool SupportDynamicExpansion = false> requires std::derived_from<Base, KAutoObjectWithList>
class KAutoObjectWithSlabHeapAndContainer : public Base {
template<typename Derived, typename Base, bool SupportDynamicExpansion> requires std::derived_from<Base, KAutoObject>
class KAutoObjectWithSlabHeapBase : public Base {
private:
template<typename, typename, bool> friend class KAutoObjectWithSlabHeap;
template<typename, typename, bool> friend class KAutoObjectWithSlabHeapAndContainer;
private:
static constinit inline KSlabHeap<Derived, SupportDynamicExpansion> s_slab_heap;
static constinit inline KAutoObjectWithListContainer<Derived> s_container;
private:
static ALWAYS_INLINE Derived *Allocate() {
return s_slab_heap.Allocate();
@ -77,12 +79,6 @@ namespace ams::kern {
static ALWAYS_INLINE void Free(Derived *obj) {
s_slab_heap.Free(obj);
}
public:
class ListAccessor : public KAutoObjectWithListContainer<Derived>::ListAccessor {
public:
ALWAYS_INLINE ListAccessor() : KAutoObjectWithListContainer<Derived>::ListAccessor(s_container) { /* ... */ }
ALWAYS_INLINE ~ListAccessor() { /* ... */ }
};
private:
static ALWAYS_INLINE bool IsInitialized(const Derived *obj) {
if constexpr (requires { { obj->IsInitialized() } -> std::same_as<bool>; }) {
@ -100,9 +96,9 @@ namespace ams::kern {
}
}
public:
constexpr explicit KAutoObjectWithSlabHeapAndContainer(util::ConstantInitializeTag) : Base(util::ConstantInitialize) { /* ... */ }
constexpr explicit KAutoObjectWithSlabHeapBase(util::ConstantInitializeTag) : Base(util::ConstantInitialize) { /* ... */ }
explicit KAutoObjectWithSlabHeapAndContainer() { /* ... */ }
explicit KAutoObjectWithSlabHeapBase() { /* ... */ }
/* NOTE: IsInitialized() and GetPostDestroyArgument() are virtual functions declared in this class, */
/* in Nintendo's kernel. We fully devirtualize them, as Destroy() is the only user of them. */
@ -110,14 +106,14 @@ namespace ams::kern {
virtual void Destroy() override final {
Derived * const derived = static_cast<Derived *>(this);
if (IsInitialized(derived)) {
s_container.Unregister(derived);
const uintptr_t arg = GetPostDestroyArgument(derived);
if (KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion>::IsInitialized(derived)) {
Derived::PreFinalize(derived);
const uintptr_t arg = KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion>::GetPostDestroyArgument(derived);
derived->Finalize();
Free(derived);
KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion>::Free(derived);
Derived::PostDestroy(arg);
} else {
Free(derived);
KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion>::Free(derived);
}
}
@ -127,7 +123,6 @@ namespace ams::kern {
public:
static void InitializeSlabHeap(void *memory, size_t memory_size) {
s_slab_heap.Initialize(memory, memory_size);
s_container.Initialize();
}
static Derived *Create() {
@ -150,10 +145,6 @@ namespace ams::kern {
return obj;
}
static void Register(Derived *obj) {
return s_container.Register(obj);
}
static size_t GetObjectSize() { return s_slab_heap.GetObjectSize(); }
static size_t GetSlabHeapSize() { return s_slab_heap.GetSlabHeapSize(); }
static size_t GetPeakIndex() { return s_slab_heap.GetPeakIndex(); }
@ -162,4 +153,42 @@ namespace ams::kern {
static size_t GetNumRemaining() { return s_slab_heap.GetNumRemaining(); }
};
template<typename Derived, typename Base, bool SupportDynamicExpansion = false>
class KAutoObjectWithSlabHeap : public KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion> {
public:
constexpr explicit KAutoObjectWithSlabHeap(util::ConstantInitializeTag) : KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion>(util::ConstantInitialize) { /* ... */ }
explicit KAutoObjectWithSlabHeap() { /* ... */ }
static ALWAYS_INLINE void PreFinalize(Derived *) { /* ... */ }
};
template<typename Derived, typename Base, bool SupportDynamicExpansion = false> requires std::derived_from<Base, KAutoObjectWithList>
class KAutoObjectWithSlabHeapAndContainer : public KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion> {
private:
static constinit inline KAutoObjectWithListContainer<Derived> s_container;
public:
class ListAccessor : public KAutoObjectWithListContainer<Derived>::ListAccessor {
public:
ALWAYS_INLINE ListAccessor() : KAutoObjectWithListContainer<Derived>::ListAccessor(s_container) { /* ... */ }
ALWAYS_INLINE ~ListAccessor() { /* ... */ }
};
public:
constexpr explicit KAutoObjectWithSlabHeapAndContainer(util::ConstantInitializeTag) : KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion>(util::ConstantInitialize) { /* ... */ }
explicit KAutoObjectWithSlabHeapAndContainer() { /* ... */ }
public:
static void InitializeSlabHeap(void *memory, size_t memory_size) {
KAutoObjectWithSlabHeapBase<Derived, Base, SupportDynamicExpansion>::InitializeSlabHeap(memory, memory_size);
s_container.Initialize();
}
static void Register(Derived *obj) {
return s_container.Register(obj);
}
static ALWAYS_INLINE void PreFinalize(Derived *obj) { s_container.Unregister(obj); }
};
}

8
libraries/libmesosphere/source/arch/arm64/kern_k_page_table.cpp
View file

@ -192,7 +192,7 @@ namespace ams::kern::arch::arm64 {
Result KPageTable::InitializeForKernel(void *table, KVirtualAddress start, KVirtualAddress end) {
/* Initialize basic fields. */
m_asid = 0;
m_manager = std::addressof(Kernel::GetSystemPageTableManager());
m_manager = Kernel::GetSystemSystemResource().GetPageTableManagerPointer();
/* Allocate a page for ttbr. */
/* NOTE: It is a postcondition of page table manager allocation that the page is all-zero. */
@ -207,7 +207,7 @@ namespace ams::kern::arch::arm64 {
R_SUCCEED();
}
Result KPageTable::InitializeForProcess(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KPageTableManager *pt_manager, KResourceLimit *resource_limit) {
Result KPageTable::InitializeForProcess(u32 id, ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, KProcessAddress code_address, size_t code_size, KSystemResource *system_resource, KResourceLimit *resource_limit) {
/* The input ID isn't actually used. */
MESOSPHERE_UNUSED(id);
@ -216,7 +216,7 @@ namespace ams::kern::arch::arm64 {
ON_RESULT_FAILURE { g_asid_manager.Release(m_asid); };
/* Set our manager. */
m_manager = pt_manager;
m_manager = system_resource->GetPageTableManagerPointer();
/* Allocate a new table, and set our ttbr value. */
const KVirtualAddress new_table = m_manager->Allocate();
@ -228,7 +228,7 @@ namespace ams::kern::arch::arm64 {
const size_t as_width = GetAddressSpaceWidth(as_type);
const KProcessAddress as_start = 0;
const KProcessAddress as_end = (1ul << as_width);
R_TRY(KPageTableBase::InitializeForProcess(as_type, enable_aslr, enable_das_merge, from_back, pool, GetVoidPointer(new_table), as_start, as_end, code_address, code_size, mem_block_slab_manager, block_info_manager, resource_limit));
R_TRY(KPageTableBase::InitializeForProcess(as_type, enable_aslr, enable_das_merge, from_back, pool, GetVoidPointer(new_table), as_start, as_end, code_address, code_size, system_resource, resource_limit));
/* Note that we've updated the table (since we created it). */
this->NoteUpdated();

16
libraries/libmesosphere/source/board/nintendo/nx/kern_k_device_page_table.cpp
View file

@ -651,11 +651,13 @@ namespace ams::kern::board::nintendo::nx {
g_memory_controller_address = KMemoryLayout::GetDevicePhysicalAddress(KMemoryRegionType_MemoryController);
/* Allocate a page to use as a reserved/no device table. */
const KVirtualAddress table_virt_addr = Kernel::GetSystemPageTableManager().Allocate();
auto &ptm = Kernel::GetSystemSystemResource().GetPageTableManager();
const KVirtualAddress table_virt_addr = ptm.Allocate();
MESOSPHERE_ABORT_UNLESS(table_virt_addr != Null<KVirtualAddress>);
const KPhysicalAddress table_phys_addr = GetPageTablePhysicalAddress(table_virt_addr);
MESOSPHERE_ASSERT(IsValidPhysicalAddress(table_phys_addr));
Kernel::GetSystemPageTableManager().Open(table_virt_addr, 1);
ptm.Open(table_virt_addr, 1);
/* Save the page. Note that it is a pre-condition that the page is cleared, when allocated from the system page table manager. */
/* NOTE: Nintendo does not check the result of StoreDataCache. */
@ -779,7 +781,7 @@ namespace ams::kern::board::nintendo::nx {
const size_t end_index = (space_address + space_size - 1) / DeviceRegionSize;
/* Get the page table manager. */
auto &ptm = Kernel::GetSystemPageTableManager();
auto &ptm = Kernel::GetSystemSystemResource().GetPageTableManager();
/* Clear the tables. */
static_assert(TableCount == (1ul << DeviceVirtualAddressBits) / DeviceRegionSize);
@ -839,7 +841,7 @@ namespace ams::kern::board::nintendo::nx {
void KDevicePageTable::Finalize() {
/* Get the page table manager. */
auto &ptm = Kernel::GetSystemPageTableManager();
auto &ptm = Kernel::GetSystemSystemResource().GetPageTableManager();
/* Detach from all devices. */
{
@ -1014,7 +1016,7 @@ namespace ams::kern::board::nintendo::nx {
/* Get the memory manager and page table manager. */
KMemoryManager &mm = Kernel::GetMemoryManager();
KPageTableManager &ptm = Kernel::GetSystemPageTableManager();
KPageTableManager &ptm = Kernel::GetSystemSystemResource().GetPageTableManager();
/* Cache permissions. */
const bool read = (device_perm & ams::svc::MemoryPermission_Read) != 0;
@ -1158,10 +1160,10 @@ namespace ams::kern::board::nintendo::nx {
/* Get the memory manager and page table manager. */
KMemoryManager &mm = Kernel::GetMemoryManager();
KPageTableManager &ptm = Kernel::GetSystemPageTableManager();
KPageTableManager &ptm = Kernel::GetSystemSystemResource().GetPageTableManager();
/* Make a page group for the pages we're closing. */
KPageGroup pg(std::addressof(Kernel::GetSystemBlockInfoManager()));
KPageGroup pg(Kernel::GetSystemSystemResource().GetBlockInfoManagerPointer());
/* Walk the directory. */
u64 remaining = size;

3
libraries/libmesosphere/source/init/kern_init_slab_setup.cpp
View file

@ -40,7 +40,8 @@ namespace ams::kern::init {
HANDLER(KEventInfo, (SLAB_COUNT(KThread) + SLAB_COUNT(KDebug)), ## __VA_ARGS__) \
HANDLER(KDebug, (SLAB_COUNT(KDebug)), ## __VA_ARGS__) \
HANDLER(KIoPool, (SLAB_COUNT(KIoPool)), ## __VA_ARGS__) \
HANDLER(KIoRegion, (SLAB_COUNT(KIoRegion)), ## __VA_ARGS__)
HANDLER(KIoRegion, (SLAB_COUNT(KIoRegion)), ## __VA_ARGS__) \
HANDLER(KSecureSystemResource, (SLAB_COUNT(KProcess)), ## __VA_ARGS__)
namespace {

6
libraries/libmesosphere/source/kern_initial_process.cpp
View file

@ -128,13 +128,13 @@ namespace ams::kern {
KProcess *new_process = nullptr;
{
/* Make page groups to represent the data. */
KPageGroup pg(std::addressof(Kernel::GetSystemBlockInfoManager()));
KPageGroup workaround_pg(std::addressof(Kernel::GetSystemBlockInfoManager()));
KPageGroup pg(Kernel::GetSystemSystemResource().GetBlockInfoManagerPointer());
KPageGroup workaround_pg(Kernel::GetSystemSystemResource().GetBlockInfoManagerPointer());
/* Populate the page group to represent the data. */
{
/* Allocate the previously unreserved pages. */
KPageGroup unreserve_pg(std::addressof(Kernel::GetSystemBlockInfoManager()));
KPageGroup unreserve_pg(Kernel::GetSystemSystemResource().GetBlockInfoManagerPointer());
MESOSPHERE_R_ABORT_UNLESS(Kernel::GetMemoryManager().AllocateAndOpen(std::addressof(unreserve_pg), unreserved_size / PageSize, KMemoryManager::EncodeOption(dst_pool, KMemoryManager::Direction_FromFront)));
/* Add the previously reserved pages. */

14
libraries/libmesosphere/source/kern_k_class_token.cpp
View file

@ -43,6 +43,12 @@ namespace ams::kern {
static_assert(ClassToken<KDeviceAddressSpace> == 0b10010001'00000000);
static_assert(ClassToken<KSessionRequest> == 0b01100001'00000000);
static_assert(ClassToken<KCodeMemory> == 0b10100001'00000000);
static_assert(ClassToken<KIoPool> == 0b11000001'00000000);
static_assert(ClassToken<KIoRegion> == 0b00001110'00000000);
/* 0b00010110'00000000 */
/* 0b00100110'00000000 */
static_assert(ClassToken<KSystemResource> == 0b01000110'00000000);
/* Ensure that the token hierarchy is correct. */
@ -72,6 +78,10 @@ namespace ams::kern {
static_assert(ClassToken<KDeviceAddressSpace> == ((0b10010001 << 8) | ClassToken<KAutoObject>));
static_assert(ClassToken<KSessionRequest> == ((0b01100001 << 8) | ClassToken<KAutoObject>));
static_assert(ClassToken<KCodeMemory> == ((0b10100001 << 8) | ClassToken<KAutoObject>));
static_assert(ClassToken<KIoPool> == ((0b11000001 << 8) | ClassToken<KAutoObject>));
static_assert(ClassToken<KIoRegion> == ((0b00001110 << 8) | ClassToken<KAutoObject>));
static_assert(ClassToken<KSystemResource> == ((0b01000110 << 8) | ClassToken<KAutoObject>));
/* Ensure that the token hierarchy reflects the class hierarchy. */
@ -100,6 +110,10 @@ namespace ams::kern {
static_assert(std::is_final<KDeviceAddressSpace>::value && std::is_base_of<KAutoObject, KDeviceAddressSpace>::value);
static_assert(std::is_final<KSessionRequest>::value && std::is_base_of<KAutoObject, KSessionRequest>::value);
static_assert(std::is_final<KCodeMemory>::value && std::is_base_of<KAutoObject, KCodeMemory>::value);
static_assert(std::is_final<KIoPool>::value && std::is_base_of<KAutoObject, KIoPool>::value);
static_assert(std::is_final<KIoRegion>::value && std::is_base_of<KAutoObject, KIoRegion>::value);
static_assert(std::is_base_of<KAutoObject, KSystemResource>::value);
}

20
libraries/libmesosphere/source/kern_k_dump_object.cpp
View file

@ -362,24 +362,24 @@ namespace ams::kern::KDumpObject {
/* Memory block slabs. */
{
MESOSPHERE_RELEASE_LOG("App Memory Block\n");
auto &app = Kernel::GetApplicationMemoryBlockManager();
auto &app = Kernel::GetApplicationSystemResource().GetMemoryBlockSlabManager();
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", app.GetUsed(), app.GetPeak(), app.GetCount());
MESOSPHERE_RELEASE_LOG("Sys Memory Block\n");
auto &sys = Kernel::GetSystemMemoryBlockManager();
auto &sys = Kernel::GetSystemSystemResource().GetMemoryBlockSlabManager();
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", sys.GetUsed(), sys.GetPeak(), sys.GetCount());
}
/* KBlockInfo slab. */
{
MESOSPHERE_RELEASE_LOG("KBlockInfo\n");
auto &manager = Kernel::GetSystemBlockInfoManager();
auto &manager = Kernel::GetSystemSystemResource().GetBlockInfoManager();
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", manager.GetUsed(), manager.GetPeak(), manager.GetCount());
}
/* Page Table slab. */
{
MESOSPHERE_RELEASE_LOG("Page Table\n");
auto &manager = Kernel::GetSystemPageTableManager();
auto &manager = Kernel::GetSystemSystemResource().GetPageTableManager();
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", manager.GetUsed(), manager.GetPeak(), manager.GetCount());
}
}
@ -425,15 +425,17 @@ namespace ams::kern::KDumpObject {
process_pts += pts;
MESOSPHERE_RELEASE_LOG("%-12s: PID=%3lu Thread %4d / Event %4d / PageTable %5zu\n", process->GetName(), process->GetId(), threads, events, pts);
if (process->GetTotalSystemResourceSize() != 0) {
if (const auto &system_resource = process->GetSystemResource(); system_resource.IsSecureResource()) {
const auto &secure_resource = static_cast<const KSecureSystemResource &>(system_resource);
MESOSPHERE_RELEASE_LOG(" System Resource\n");
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", process->GetDynamicPageManager().GetUsed(), process->GetDynamicPageManager().GetPeak(), process->GetDynamicPageManager().GetCount());
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", secure_resource.GetDynamicPageManager().GetUsed(), secure_resource.GetDynamicPageManager().GetPeak(), secure_resource.GetDynamicPageManager().GetCount());
MESOSPHERE_RELEASE_LOG(" Memory Block\n");
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", process->GetMemoryBlockSlabManager().GetUsed(), process->GetMemoryBlockSlabManager().GetPeak(), process->GetMemoryBlockSlabManager().GetCount());
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", secure_resource.GetMemoryBlockSlabManager().GetUsed(), secure_resource.GetMemoryBlockSlabManager().GetPeak(), secure_resource.GetMemoryBlockSlabManager().GetCount());
MESOSPHERE_RELEASE_LOG(" Page Table\n");
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", process->GetPageTableManager().GetUsed(), process->GetPageTableManager().GetPeak(), process->GetPageTableManager().GetCount());
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", secure_resource.GetPageTableManager().GetUsed(), secure_resource.GetPageTableManager().GetPeak(), secure_resource.GetPageTableManager().GetCount());
MESOSPHERE_RELEASE_LOG(" Block Info\n");
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", process->GetBlockInfoManager().GetUsed(), process->GetBlockInfoManager().GetPeak(), process->GetBlockInfoManager().GetCount());
MESOSPHERE_RELEASE_LOG(" Cur=%6zu Peak=%6zu Max=%6zu\n", secure_resource.GetBlockInfoManager().GetUsed(), secure_resource.GetBlockInfoManager().GetPeak(), secure_resource.GetBlockInfoManager().GetCount());
}
}

10
libraries/libmesosphere/source/kern_k_page_table_base.cpp
View file

@ -105,8 +105,8 @@ namespace ams::kern {
m_mapped_unsafe_physical_memory = 0;
m_mapped_ipc_server_memory = 0;
m_memory_block_slab_manager = std::addressof(Kernel::GetSystemMemoryBlockManager());
m_block_info_manager = std::addressof(Kernel::GetSystemBlockInfoManager());
m_memory_block_slab_manager = Kernel::GetSystemSystemResource().GetMemoryBlockSlabManagerPointer();
m_block_info_manager = Kernel::GetSystemSystemResource().GetBlockInfoManagerPointer();
m_resource_limit = std::addressof(Kernel::GetSystemResourceLimit());
m_allocate_option = KMemoryManager::EncodeOption(KMemoryManager::Pool_System, KMemoryManager::Direction_FromFront);
@ -124,7 +124,7 @@ namespace ams::kern {
R_RETURN(m_memory_block_manager.Initialize(m_address_space_start, m_address_space_end, m_memory_block_slab_manager));
}
Result KPageTableBase::InitializeForProcess(ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, void *table, KProcessAddress start, KProcessAddress end, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KResourceLimit *resource_limit) {
Result KPageTableBase::InitializeForProcess(ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_das_merge, bool from_back, KMemoryManager::Pool pool, void *table, KProcessAddress start, KProcessAddress end, KProcessAddress code_address, size_t code_size, KSystemResource *system_resource, KResourceLimit *resource_limit) {
/* Validate the region. */
MESOSPHERE_ABORT_UNLESS(start <= code_address);
MESOSPHERE_ABORT_UNLESS(code_address < code_address + code_size);
@ -186,8 +186,8 @@ namespace ams::kern {
m_address_space_start = start;
m_address_space_end = end;
m_is_kernel = false;
m_memory_block_slab_manager = mem_block_slab_manager;
m_block_info_manager = block_info_manager;
m_memory_block_slab_manager = system_resource->GetMemoryBlockSlabManagerPointer();
m_block_info_manager = system_resource->GetBlockInfoManagerPointer();
m_resource_limit = resource_limit;
/* Determine the region we can place our undetermineds in. */

122
libraries/libmesosphere/source/kern_k_process.cpp
View file

@ -117,34 +117,19 @@ namespace ams::kern {
this->DeleteThreadLocalRegion(m_plr_address);
/* Get the used memory size. */
const size_t used_memory_size = this->GetUsedUserPhysicalMemorySize();
const size_t used_memory_size = this->GetUsedNonSystemUserPhysicalMemorySize();
/* Finalize the page table. */
m_page_table.Finalize();
/* Free the system resource. */
if (m_system_resource_address != Null<KVirtualAddress>) {
/* Check that we have no outstanding allocations. */
MESOSPHERE_ABORT_UNLESS(m_memory_block_slab_manager.GetUsed() == 0);
MESOSPHERE_ABORT_UNLESS(m_block_info_manager.GetUsed() == 0);
MESOSPHERE_ABORT_UNLESS(m_page_table_manager.GetUsed() == 0);
/* Free the memory. */
KSystemControl::FreeSecureMemory(m_system_resource_address, m_system_resource_num_pages * PageSize, m_memory_pool);
/* Clear our tracking variables. */
m_system_resource_address = Null<KVirtualAddress>;
m_system_resource_num_pages = 0;
/* Finish using our system resource. */
{
if (m_system_resource->IsSecureResource()) {
/* Finalize optimized memory. If memory wasn't optimized, this is a no-op. */
Kernel::GetMemoryManager().FinalizeOptimizedMemory(this->GetId(), m_memory_pool);
}
/* Release memory to the resource limit. */
if (m_resource_limit != nullptr) {
MESOSPHERE_ABORT_UNLESS(used_memory_size >= m_memory_release_hint);
m_resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, used_memory_size, used_memory_size - m_memory_release_hint);
m_resource_limit->Close();
m_system_resource->Close();
}
/* Free all shared memory infos. */
@ -179,6 +164,13 @@ namespace ams::kern {
MESOSPHERE_ABORT_UNLESS(m_partially_used_tlp_tree.empty());
MESOSPHERE_ABORT_UNLESS(m_fully_used_tlp_tree.empty());
/* Release memory to the resource limit. */
if (m_resource_limit != nullptr) {
MESOSPHERE_ABORT_UNLESS(used_memory_size >= m_memory_release_hint);
m_resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, used_memory_size, used_memory_size - m_memory_release_hint);
m_resource_limit->Close();
}
/* Log that we finalized for debug. */
MESOSPHERE_LOG("KProcess::Finalize() pid=%ld name=%-12s\n", m_process_id, m_name);
@ -267,13 +259,18 @@ namespace ams::kern {
MESOSPHERE_ASSERT(res_limit != nullptr);
MESOSPHERE_ABORT_UNLESS((params.code_num_pages * PageSize) / PageSize == static_cast<size_t>(params.code_num_pages));
/* Determine is application. */
const bool is_app = (params.flags & ams::svc::CreateProcessFlag_IsApplication) != 0;
/* Set members. */
m_memory_pool = pool;
m_resource_limit = res_limit;
m_system_resource_address = Null<KVirtualAddress>;
m_system_resource_num_pages = 0;
m_system_resource = std::addressof(is_app ? Kernel::GetApplicationSystemResource() : Kernel::GetSystemSystemResource());
m_is_immortal = immortal;
/* Open reference to our system resource. */
m_system_resource->Open();
/* Setup page table. */
/* NOTE: Nintendo passes process ID despite not having set it yet. */
/* This goes completely unused, but even so... */
@ -281,11 +278,7 @@ namespace ams::kern {
const auto as_type = static_cast<ams::svc::CreateProcessFlag>(params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask);
const bool enable_aslr = (params.flags & ams::svc::CreateProcessFlag_EnableAslr) != 0;
const bool enable_das_merge = (params.flags & ams::svc::CreateProcessFlag_DisableDeviceAddressSpaceMerge) == 0;
const bool is_app = (params.flags & ams::svc::CreateProcessFlag_IsApplication) != 0;
auto *mem_block_manager = std::addressof(is_app ? Kernel::GetApplicationMemoryBlockManager() : Kernel::GetSystemMemoryBlockManager());
auto *block_info_manager = std::addressof(is_app ? Kernel::GetApplicationBlockInfoManager() : Kernel::GetSystemBlockInfoManager());
auto *pt_manager = std::addressof(is_app ? Kernel::GetApplicationPageTableManager() : Kernel::GetSystemPageTableManager());
R_TRY(m_page_table.Initialize(m_process_id, as_type, enable_aslr, enable_das_merge, !enable_aslr, pool, params.code_address, params.code_num_pages * PageSize, mem_block_manager, block_info_manager, pt_manager, res_limit));
R_TRY(m_page_table.Initialize(m_process_id, as_type, enable_aslr, enable_das_merge, !enable_aslr, pool, params.code_address, params.code_num_pages * PageSize, m_system_resource, res_limit));
}
ON_RESULT_FAILURE { m_page_table.Finalize(); };
@ -328,64 +321,35 @@ namespace ams::kern {
const size_t code_size = code_num_pages * PageSize;
const size_t system_resource_size = system_resource_num_pages * PageSize;
/* Reserve memory for the system resource. */
KScopedResourceReservation memory_reservation(this, ams::svc::LimitableResource_PhysicalMemoryMax, code_size + KSystemControl::CalculateRequiredSecureMemorySize(system_resource_size, pool));
/* Reserve memory for our code resource. */
KScopedResourceReservation memory_reservation(this, ams::svc::LimitableResource_PhysicalMemoryMax, code_size);
R_UNLESS(memory_reservation.Succeeded(), svc::ResultLimitReached());
/* Setup page table resource objects. */
KMemoryBlockSlabManager *mem_block_manager;
KBlockInfoManager *block_info_manager;
KPageTableManager *pt_manager;
m_system_resource_address = Null<KVirtualAddress>;
m_system_resource_num_pages = 0;
/* Setup our system resource. */
if (system_resource_num_pages != 0) {
/* Allocate secure memory. */
R_TRY(KSystemControl::AllocateSecureMemory(std::addressof(m_system_resource_address), system_resource_size, pool));
/* Create a secure system resource. */
KSecureSystemResource *secure_resource = KSecureSystemResource::Create();
R_UNLESS(secure_resource != nullptr, svc::ResultOutOfResource());
/* Set the number of system resource pages. */
MESOSPHERE_ASSERT(m_system_resource_address != Null<KVirtualAddress>);
m_system_resource_num_pages = system_resource_num_pages;
ON_RESULT_FAILURE { secure_resource->Close(); };
/* Initialize slab heaps. */
const size_t rc_size = util::AlignUp(KPageTableSlabHeap::CalculateReferenceCountSize(system_resource_size), PageSize);
m_dynamic_page_manager.Initialize(m_system_resource_address + rc_size, system_resource_size - rc_size);
m_page_table_heap.Initialize(std::addressof(m_dynamic_page_manager), 0, GetPointer<KPageTableManager::RefCount>(m_system_resource_address));
m_memory_block_heap.Initialize(std::addressof(m_dynamic_page_manager), 0);
m_block_info_heap.Initialize(std::addressof(m_dynamic_page_manager), 0);
/* Initialize the secure resource. */
R_TRY(secure_resource->Initialize(system_resource_size, m_resource_limit, m_memory_pool));
/* Initialize managers. */
m_page_table_manager.Initialize(std::addressof(m_dynamic_page_manager), std::addressof(m_page_table_heap));
m_memory_block_slab_manager.Initialize(std::addressof(m_dynamic_page_manager), std::addressof(m_memory_block_heap));
m_block_info_manager.Initialize(std::addressof(m_dynamic_page_manager), std::addressof(m_block_info_heap));
/* Set our system resource. */
m_system_resource = secure_resource;
mem_block_manager = std::addressof(m_memory_block_slab_manager);
block_info_manager = std::addressof(m_block_info_manager);
pt_manager = std::addressof(m_page_table_manager);
} else {
/* Use the system-wide system resource. */
const bool is_app = (params.flags & ams::svc::CreateProcessFlag_IsApplication);
mem_block_manager = std::addressof(is_app ? Kernel::GetApplicationMemoryBlockManager() : Kernel::GetSystemMemoryBlockManager());
block_info_manager = std::addressof(is_app ? Kernel::GetApplicationBlockInfoManager() : Kernel::GetSystemBlockInfoManager());
pt_manager = std::addressof(is_app ? Kernel::GetApplicationPageTableManager() : Kernel::GetSystemPageTableManager());
m_system_resource = std::addressof(is_app ? Kernel::GetApplicationSystemResource() : Kernel::GetSystemSystemResource());
/* Open reference to the system resource. */
m_system_resource->Open();
}
/* Ensure we don't leak any secure memory we allocated. */
ON_RESULT_FAILURE {
if (m_system_resource_address != Null<KVirtualAddress>) {
/* Check that we have no outstanding allocations. */
MESOSPHERE_ABORT_UNLESS(m_memory_block_slab_manager.GetUsed() == 0);
MESOSPHERE_ABORT_UNLESS(m_block_info_manager.GetUsed() == 0);
MESOSPHERE_ABORT_UNLESS(m_page_table_manager.GetUsed() == 0);
/* Free the memory. */
KSystemControl::FreeSecureMemory(m_system_resource_address, system_resource_size, pool);
/* Clear our tracking variables. */
m_system_resource_address = Null<KVirtualAddress>;
m_system_resource_num_pages = 0;
}
};
/* Ensure we clean up our secure resource, if we fail. */
ON_RESULT_FAILURE { m_system_resource->Close(); };
/* Setup page table. */
/* NOTE: Nintendo passes process ID despite not having set it yet. */
@ -394,7 +358,7 @@ namespace ams::kern {
const auto as_type = static_cast<ams::svc::CreateProcessFlag>(params.flags & ams::svc::CreateProcessFlag_AddressSpaceMask);
const bool enable_aslr = (params.flags & ams::svc::CreateProcessFlag_EnableAslr) != 0;
const bool enable_das_merge = (params.flags & ams::svc::CreateProcessFlag_DisableDeviceAddressSpaceMerge) == 0;
R_TRY(m_page_table.Initialize(m_process_id, as_type, enable_aslr, enable_das_merge, !enable_aslr, pool, params.code_address, code_size, mem_block_manager, block_info_manager, pt_manager, res_limit));
R_TRY(m_page_table.Initialize(m_process_id, as_type, enable_aslr, enable_das_merge, !enable_aslr, pool, params.code_address, code_size, m_system_resource, res_limit));
}
ON_RESULT_FAILURE_2 { m_page_table.Finalize(); };
@ -413,7 +377,7 @@ namespace ams::kern {
MESOSPHERE_ABORT_UNLESS(m_process_id <= ProcessIdMax);
/* If we should optimize memory allocations, do so. */
if (m_system_resource_address != Null<KVirtualAddress> && (params.flags & ams::svc::CreateProcessFlag_OptimizeMemoryAllocation) != 0) {
if (m_system_resource->IsSecureResource() && (params.flags & ams::svc::CreateProcessFlag_OptimizeMemoryAllocation) != 0) {
R_TRY(Kernel::GetMemoryManager().InitializeOptimizedMemory(m_process_id, pool));
}
@ -461,7 +425,7 @@ namespace ams::kern {
if (!m_is_immortal) {
/* Release resource limit hint. */
if (m_resource_limit != nullptr) {
m_memory_release_hint = this->GetUsedUserPhysicalMemorySize();
m_memory_release_hint = this->GetUsedNonSystemUserPhysicalMemorySize();
m_resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, 0, m_memory_release_hint);
}
@ -880,7 +844,7 @@ namespace ams::kern {
size_t KProcess::GetUsedUserPhysicalMemorySize() const {
const size_t norm_size = m_page_table.GetNormalMemorySize();
const size_t other_size = m_code_size + m_main_thread_stack_size;
const size_t sec_size = KSystemControl::CalculateRequiredSecureMemorySize(m_system_resource_num_pages * PageSize, m_memory_pool);
const size_t sec_size = m_system_resource->IsSecureResource() ? static_cast<KSecureSystemResource *>(m_system_resource)->CalculateRequiredSecureMemorySize() : 0;
return norm_size + other_size + sec_size;
}
@ -909,7 +873,7 @@ namespace ams::kern {
/* Get the amount of free and used size. */
const size_t free_size = m_resource_limit->GetFreeValue(ams::svc::LimitableResource_PhysicalMemoryMax);
const size_t used_size = this->GetUsedUserPhysicalMemorySize();
const size_t sec_size = KSystemControl::CalculateRequiredSecureMemorySize(m_system_resource_num_pages * PageSize, m_memory_pool);
const size_t sec_size = m_system_resource->IsSecureResource() ? static_cast<KSecureSystemResource *>(m_system_resource)->CalculateRequiredSecureMemorySize() : 0;
const size_t max_size = m_max_process_memory;
if (used_size + free_size > max_size) {

90
libraries/libmesosphere/source/kern_k_system_resource.cpp Normal file
View file

@ -0,0 +1,90 @@
/*
* 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 <http://www.gnu.org/licenses/>.
*/
#include <mesosphere.hpp>
namespace ams::kern {
Result KSecureSystemResource::Initialize(size_t size, KResourceLimit *resource_limit, KMemoryManager::Pool pool) {
/* Set members. */
m_resource_limit = resource_limit;
m_resource_size = size;
m_resource_pool = pool;
/* Determine required size for our secure resource. */
const size_t secure_size = this->CalculateRequiredSecureMemorySize();
/* Reserve memory for our secure resource. */
KScopedResourceReservation memory_reservation(m_resource_limit, ams::svc::LimitableResource_PhysicalMemoryMax, secure_size);
R_UNLESS(memory_reservation.Succeeded(), svc::ResultLimitReached());
/* Allocate secure memory. */
R_TRY(KSystemControl::AllocateSecureMemory(std::addressof(m_resource_address), m_resource_size, m_resource_pool));
MESOSPHERE_ASSERT(m_resource_address != Null<KVirtualAddress>);
/* Ensure we clean up the secure memory, if we fail past this point. */
ON_RESULT_FAILURE { KSystemControl::FreeSecureMemory(m_resource_address, m_resource_size, m_resource_pool); };
/* Check that our allocation is bigger than the reference counts needed for it. */
const size_t rc_size = util::AlignUp(KPageTableSlabHeap::CalculateReferenceCountSize(m_resource_size), PageSize);
R_UNLESS(m_resource_size > rc_size, svc::ResultOutOfMemory());
/* Initialize slab heaps. */
m_dynamic_page_manager.Initialize(m_resource_address + rc_size, m_resource_size - rc_size);
m_page_table_heap.Initialize(std::addressof(m_dynamic_page_manager), 0, GetPointer<KPageTableManager::RefCount>(m_resource_address));
m_memory_block_heap.Initialize(std::addressof(m_dynamic_page_manager), 0);
m_block_info_heap.Initialize(std::addressof(m_dynamic_page_manager), 0);
/* Initialize managers. */
m_page_table_manager.Initialize(std::addressof(m_dynamic_page_manager), std::addressof(m_page_table_heap));
m_memory_block_slab_manager.Initialize(std::addressof(m_dynamic_page_manager), std::addressof(m_memory_block_heap));
m_block_info_manager.Initialize(std::addressof(m_dynamic_page_manager), std::addressof(m_block_info_heap));
/* Set our managers. */
this->SetManagers(m_memory_block_slab_manager, m_block_info_manager, m_page_table_manager);
/* Commit the memory reservation. */
memory_reservation.Commit();
/* Open reference to our resource limit. */
m_resource_limit->Open();
/* Set ourselves as initialized. */
m_is_initialized = true;
R_SUCCEED();
}
void KSecureSystemResource::Finalize() {
/* Check that we have no outstanding allocations. */
MESOSPHERE_ABORT_UNLESS(m_memory_block_slab_manager.GetUsed() == 0);
MESOSPHERE_ABORT_UNLESS(m_block_info_manager.GetUsed() == 0);
MESOSPHERE_ABORT_UNLESS(m_page_table_manager.GetUsed() == 0);
/* Free our secure memory. */
KSystemControl::FreeSecureMemory(m_resource_address, m_resource_size, m_resource_pool);
/* Release the memory reservation. */
m_resource_limit->Release(ams::svc::LimitableResource_PhysicalMemoryMax, this->CalculateRequiredSecureMemorySize());
/* Close reference to our resource limit. */
m_resource_limit->Close();
}
size_t KSecureSystemResource::CalculateRequiredSecureMemorySize(size_t size, KMemoryManager::Pool pool) {
return KSystemControl::CalculateRequiredSecureMemorySize(size, pool);
}
}

8
libraries/libmesosphere/source/kern_kernel.cpp
View file

@ -100,6 +100,14 @@ namespace ams::kern {
/* Check that we have the correct number of dynamic pages available. */
MESOSPHERE_ABORT_UNLESS(g_resource_manager_page_manager.GetCount() - g_resource_manager_page_manager.GetUsed() == ReservedDynamicPageCount);
/* Create the system page table managers. */
KAutoObject::Create<KSystemResource>(std::addressof(s_app_system_resource));
KAutoObject::Create<KSystemResource>(std::addressof(s_sys_system_resource));
/* Set the managers for the system resources. */
s_app_system_resource.SetManagers(s_app_memory_block_manager, s_app_block_info_manager, s_app_page_table_manager);
s_sys_system_resource.SetManagers(s_sys_memory_block_manager, s_sys_block_info_manager, s_sys_page_table_manager);
}
void Kernel::PrintLayout() {

3
mesosphere/kernel/source/kern_kernel_instantiations.cpp
View file

@ -40,6 +40,9 @@ namespace ams::kern {
constinit KBlockInfoManager Kernel::s_app_block_info_manager;
constinit KBlockInfoManager Kernel::s_sys_block_info_manager;
constinit KSystemResource Kernel::s_app_system_resource{util::ConstantInitialize};
constinit KSystemResource Kernel::s_sys_system_resource{util::ConstantInitialize};
namespace {
template<size_t N> requires (N > 0)