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authorGravatar bunnei2017-10-19 23:00:46 -0400
committerGravatar bunnei2017-10-19 23:00:46 -0400
commitdcd6bb82f7a5bc1daaa8570f710ffb062fa4c596 (patch)
tree95f6a5d5f816a9c8a6367889dd4d551deb625eb0 /src/core/hle/kernel
parentlm: Implement lm::Initialize and Logger::log. (diff)
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hle: Fix QueryMemory response for MemoryInfo.
Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/memory.cpp66
-rw-r--r--src/core/hle/kernel/process.cpp42
-rw-r--r--src/core/hle/kernel/thread.cpp2
-rw-r--r--src/core/hle/kernel/vm_manager.h19
4 files changed, 14 insertions, 115 deletions
diff --git a/src/core/hle/kernel/memory.cpp b/src/core/hle/kernel/memory.cpp
index 7f27e9655..95d3a6bf6 100644
--- a/src/core/hle/kernel/memory.cpp
+++ b/src/core/hle/kernel/memory.cpp
@@ -96,75 +96,9 @@ MemoryRegionInfo* GetMemoryRegion(MemoryRegion region) {
96} 96}
97 97
98void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping) { 98void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping) {
99 using namespace Memory;
100
101 struct MemoryArea {
102 VAddr vaddr_base;
103 PAddr paddr_base;
104 u32 size;
105 };
106
107 // The order of entries in this array is important. The VRAM and IO VAddr ranges overlap, and
108 // VRAM must be tried first.
109 static constexpr MemoryArea memory_areas[] = {
110 {VRAM_VADDR, VRAM_PADDR, VRAM_SIZE},
111 {IO_AREA_VADDR, IO_AREA_PADDR, IO_AREA_SIZE},
112 {DSP_RAM_VADDR, DSP_RAM_PADDR, DSP_RAM_SIZE},
113 {N3DS_EXTRA_RAM_VADDR, N3DS_EXTRA_RAM_PADDR, N3DS_EXTRA_RAM_SIZE - 0x20000},
114 };
115
116 VAddr mapping_limit = mapping.address + mapping.size;
117 if (mapping_limit < mapping.address) {
118 LOG_CRITICAL(Loader, "Mapping size overflowed: address=0x%08" PRIX32 " size=0x%" PRIX32,
119 mapping.address, mapping.size);
120 return;
121 }
122
123 auto area =
124 std::find_if(std::begin(memory_areas), std::end(memory_areas), [&](const auto& area) {
125 return mapping.address >= area.vaddr_base &&
126 mapping_limit <= area.vaddr_base + area.size;
127 });
128 if (area == std::end(memory_areas)) {
129 LOG_ERROR(Loader, "Unhandled special mapping: address=0x%08" PRIX32 " size=0x%" PRIX32
130 " read_only=%d unk_flag=%d",
131 mapping.address, mapping.size, mapping.read_only, mapping.unk_flag);
132 return;
133 }
134
135 u32 offset_into_region = mapping.address - area->vaddr_base;
136 if (area->paddr_base == IO_AREA_PADDR) {
137 LOG_ERROR(Loader, "MMIO mappings are not supported yet. phys_addr=0x%08" PRIX32,
138 area->paddr_base + offset_into_region);
139 return;
140 }
141
142 u8* target_pointer = Memory::GetPhysicalPointer(area->paddr_base + offset_into_region);
143
144 // TODO(yuriks): This flag seems to have some other effect, but it's unknown what
145 MemoryState memory_state = mapping.unk_flag ? MemoryState::Static : MemoryState::IO;
146
147 auto vma =
148 address_space.MapBackingMemory(mapping.address, target_pointer, mapping.size, memory_state)
149 .Unwrap();
150 address_space.Reprotect(vma,
151 mapping.read_only ? VMAPermission::Read : VMAPermission::ReadWrite);
152} 99}
153 100
154void MapSharedPages(VMManager& address_space) { 101void MapSharedPages(VMManager& address_space) {
155 auto cfg_mem_vma = address_space
156 .MapBackingMemory(Memory::CONFIG_MEMORY_VADDR,
157 reinterpret_cast<u8*>(&ConfigMem::config_mem),
158 Memory::CONFIG_MEMORY_SIZE, MemoryState::Shared)
159 .Unwrap();
160 address_space.Reprotect(cfg_mem_vma, VMAPermission::Read);
161
162 auto shared_page_vma = address_space
163 .MapBackingMemory(Memory::SHARED_PAGE_VADDR,
164 reinterpret_cast<u8*>(&SharedPage::shared_page),
165 Memory::SHARED_PAGE_SIZE, MemoryState::Shared)
166 .Unwrap();
167 address_space.Reprotect(shared_page_vma, VMAPermission::Read);
168} 102}
169 103
170} // namespace Kernel 104} // namespace Kernel
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index 9e145866f..98c5b0905 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -117,7 +117,7 @@ void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
117 vm_manager 117 vm_manager
118 .MapMemoryBlock(Memory::HEAP_VADDR_END - stack_size, 118 .MapMemoryBlock(Memory::HEAP_VADDR_END - stack_size,
119 std::make_shared<std::vector<u8>>(stack_size, 0), 0, stack_size, 119 std::make_shared<std::vector<u8>>(stack_size, 0), 0, stack_size,
120 MemoryState::Locked) 120 MemoryState::Heap)
121 .Unwrap(); 121 .Unwrap();
122 misc_memory_used += stack_size; 122 misc_memory_used += stack_size;
123 memory_region->used += stack_size; 123 memory_region->used += stack_size;
@@ -148,7 +148,7 @@ void Process::LoadModule(SharedPtr<CodeSet> module_, VAddr base_addr) {
148 }; 148 };
149 149
150 // Map CodeSet segments 150 // Map CodeSet segments
151 MapSegment(module_->code, VMAPermission::ReadWrite, MemoryState::Private); 151 MapSegment(module_->code, VMAPermission::ReadExecute, MemoryState::Code);
152 MapSegment(module_->rodata, VMAPermission::Read, MemoryState::Static); 152 MapSegment(module_->rodata, VMAPermission::Read, MemoryState::Static);
153 MapSegment(module_->data, VMAPermission::ReadWrite, MemoryState::Static); 153 MapSegment(module_->data, VMAPermission::ReadWrite, MemoryState::Static);
154} 154}
@@ -193,7 +193,7 @@ ResultVal<VAddr> Process::HeapAllocate(VAddr target, u32 size, VMAPermission per
193 ASSERT(heap_end - heap_start == heap_memory->size()); 193 ASSERT(heap_end - heap_start == heap_memory->size());
194 194
195 CASCADE_RESULT(auto vma, vm_manager.MapMemoryBlock(target, heap_memory, target - heap_start, 195 CASCADE_RESULT(auto vma, vm_manager.MapMemoryBlock(target, heap_memory, target - heap_start,
196 size, MemoryState::Private)); 196 size, MemoryState::Heap));
197 vm_manager.Reprotect(vma, perms); 197 vm_manager.Reprotect(vma, perms);
198 198
199 heap_used += size; 199 heap_used += size;
@@ -223,40 +223,8 @@ ResultCode Process::HeapFree(VAddr target, u32 size) {
223} 223}
224 224
225ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission perms) { 225ResultVal<VAddr> Process::LinearAllocate(VAddr target, u32 size, VMAPermission perms) {
226 auto& linheap_memory = memory_region->linear_heap_memory; 226 UNIMPLEMENTED();
227 227 return {};
228 VAddr heap_end = GetLinearHeapBase() + (u32)linheap_memory->size();
229 // Games and homebrew only ever seem to pass 0 here (which lets the kernel decide the address),
230 // but explicit addresses are also accepted and respected.
231 if (target == 0) {
232 target = heap_end;
233 }
234
235 if (target < GetLinearHeapBase() || target + size > GetLinearHeapLimit() || target > heap_end ||
236 target + size < target) {
237
238 return ERR_INVALID_ADDRESS;
239 }
240
241 // Expansion of the linear heap is only allowed if you do an allocation immediately at its
242 // end. It's possible to free gaps in the middle of the heap and then reallocate them later,
243 // but expansions are only allowed at the end.
244 if (target == heap_end) {
245 linheap_memory->insert(linheap_memory->end(), size, 0);
246 vm_manager.RefreshMemoryBlockMappings(linheap_memory.get());
247 }
248
249 // TODO(yuriks): As is, this lets processes map memory allocated by other processes from the
250 // same region. It is unknown if or how the 3DS kernel checks against this.
251 size_t offset = target - GetLinearHeapBase();
252 CASCADE_RESULT(auto vma, vm_manager.MapMemoryBlock(target, linheap_memory, offset, size,
253 MemoryState::Continuous));
254 vm_manager.Reprotect(vma, perms);
255
256 linear_heap_used += size;
257 memory_region->used += size;
258
259 return MakeResult<VAddr>(target);
260} 228}
261 229
262ResultCode Process::LinearFree(VAddr target, u32 size) { 230ResultCode Process::LinearFree(VAddr target, u32 size) {
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index 75df49ac2..8b72084bf 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -446,7 +446,7 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
446 // Map the page to the current process' address space. 446 // Map the page to the current process' address space.
447 // TODO(Subv): Find the correct MemoryState for this region. 447 // TODO(Subv): Find the correct MemoryState for this region.
448 vm_manager.MapMemoryBlock(Memory::TLS_AREA_VADDR + available_page * Memory::PAGE_SIZE, 448 vm_manager.MapMemoryBlock(Memory::TLS_AREA_VADDR + available_page * Memory::PAGE_SIZE,
449 linheap_memory, offset, Memory::PAGE_SIZE, MemoryState::Static); 449 linheap_memory, offset, Memory::PAGE_SIZE, MemoryState::ThreadLocalStorage);
450 } 450 }
451 451
452 // Mark the slot as used 452 // Mark the slot as used
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index cb5bb8243..d3db1ca8d 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -40,19 +40,16 @@ enum class VMAPermission : u8 {
40}; 40};
41 41
42/// Set of values returned in MemoryInfo.state by svcQueryMemory. 42/// Set of values returned in MemoryInfo.state by svcQueryMemory.
43enum class MemoryState : u8 { 43enum class MemoryState : u32 {
44 Free = 0, 44 Free = 0,
45 Reserved = 1, 45 IO = 1,
46 IO = 2, 46 Normal = 2,
47 Static = 3, 47 Code = 3,
48 Code = 4, 48 Static = 4,
49 Private = 5, 49 Heap = 5,
50 Shared = 6, 50 Shared = 6,
51 Continuous = 7, 51 Mapped = 6,
52 Aliased = 8, 52 ThreadLocalStorage = 12,
53 Alias = 9,
54 AliasCode = 10,
55 Locked = 11,
56}; 53};
57 54
58/** 55/**