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-rw-r--r--src/core/CMakeLists.txt1
-rw-r--r--src/core/hle/kernel/k_code_memory.cpp29
-rw-r--r--src/core/hle/kernel/k_code_memory.h6
-rw-r--r--src/core/hle/kernel/k_memory_manager.cpp8
-rw-r--r--src/core/hle/kernel/k_page_group.cpp121
-rw-r--r--src/core/hle/kernel/k_page_group.h163
-rw-r--r--src/core/hle/kernel/k_page_table.cpp142
-rw-r--r--src/core/hle/kernel/k_page_table.h9
-rw-r--r--src/core/hle/kernel/k_shared_memory.cpp19
-rw-r--r--src/core/hle/kernel/memory_types.h3
-rw-r--r--src/core/hle/kernel/svc.cpp2
11 files changed, 322 insertions, 181 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 0252c8c31..5afdeb5ff 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -226,6 +226,7 @@ add_library(core STATIC
hle/kernel/k_page_buffer.h
hle/kernel/k_page_heap.cpp
hle/kernel/k_page_heap.h
+ hle/kernel/k_page_group.cpp
hle/kernel/k_page_group.h
hle/kernel/k_page_table.cpp
hle/kernel/k_page_table.h
diff --git a/src/core/hle/kernel/k_code_memory.cpp b/src/core/hle/kernel/k_code_memory.cpp
index 4b1c134d4..d9da1e600 100644
--- a/src/core/hle/kernel/k_code_memory.cpp
+++ b/src/core/hle/kernel/k_code_memory.cpp
@@ -27,13 +27,13 @@ Result KCodeMemory::Initialize(Core::DeviceMemory& device_memory, VAddr addr, si
auto& page_table = m_owner->PageTable();
// Construct the page group.
- m_page_group = {};
+ m_page_group.emplace(kernel, page_table.GetBlockInfoManager());
// Lock the memory.
- R_TRY(page_table.LockForCodeMemory(&m_page_group, addr, size))
+ R_TRY(page_table.LockForCodeMemory(std::addressof(*m_page_group), addr, size))
// Clear the memory.
- for (const auto& block : m_page_group.Nodes()) {
+ for (const auto& block : *m_page_group) {
std::memset(device_memory.GetPointer<void>(block.GetAddress()), 0xFF, block.GetSize());
}
@@ -51,12 +51,13 @@ Result KCodeMemory::Initialize(Core::DeviceMemory& device_memory, VAddr addr, si
void KCodeMemory::Finalize() {
// Unlock.
if (!m_is_mapped && !m_is_owner_mapped) {
- const size_t size = m_page_group.GetNumPages() * PageSize;
- m_owner->PageTable().UnlockForCodeMemory(m_address, size, m_page_group);
+ const size_t size = m_page_group->GetNumPages() * PageSize;
+ m_owner->PageTable().UnlockForCodeMemory(m_address, size, *m_page_group);
}
// Close the page group.
- m_page_group = {};
+ m_page_group->Close();
+ m_page_group->Finalize();
// Close our reference to our owner.
m_owner->Close();
@@ -64,7 +65,7 @@ void KCodeMemory::Finalize() {
Result KCodeMemory::Map(VAddr address, size_t size) {
// Validate the size.
- R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+ R_UNLESS(m_page_group->GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
// Lock ourselves.
KScopedLightLock lk(m_lock);
@@ -74,7 +75,7 @@ Result KCodeMemory::Map(VAddr address, size_t size) {
// Map the memory.
R_TRY(kernel.CurrentProcess()->PageTable().MapPages(
- address, m_page_group, KMemoryState::CodeOut, KMemoryPermission::UserReadWrite));
+ address, *m_page_group, KMemoryState::CodeOut, KMemoryPermission::UserReadWrite));
// Mark ourselves as mapped.
m_is_mapped = true;
@@ -84,13 +85,13 @@ Result KCodeMemory::Map(VAddr address, size_t size) {
Result KCodeMemory::Unmap(VAddr address, size_t size) {
// Validate the size.
- R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+ R_UNLESS(m_page_group->GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
// Lock ourselves.
KScopedLightLock lk(m_lock);
// Unmap the memory.
- R_TRY(kernel.CurrentProcess()->PageTable().UnmapPages(address, m_page_group,
+ R_TRY(kernel.CurrentProcess()->PageTable().UnmapPages(address, *m_page_group,
KMemoryState::CodeOut));
// Mark ourselves as unmapped.
@@ -101,7 +102,7 @@ Result KCodeMemory::Unmap(VAddr address, size_t size) {
Result KCodeMemory::MapToOwner(VAddr address, size_t size, Svc::MemoryPermission perm) {
// Validate the size.
- R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+ R_UNLESS(m_page_group->GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
// Lock ourselves.
KScopedLightLock lk(m_lock);
@@ -125,7 +126,7 @@ Result KCodeMemory::MapToOwner(VAddr address, size_t size, Svc::MemoryPermission
// Map the memory.
R_TRY(
- m_owner->PageTable().MapPages(address, m_page_group, KMemoryState::GeneratedCode, k_perm));
+ m_owner->PageTable().MapPages(address, *m_page_group, KMemoryState::GeneratedCode, k_perm));
// Mark ourselves as mapped.
m_is_owner_mapped = true;
@@ -135,13 +136,13 @@ Result KCodeMemory::MapToOwner(VAddr address, size_t size, Svc::MemoryPermission
Result KCodeMemory::UnmapFromOwner(VAddr address, size_t size) {
// Validate the size.
- R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+ R_UNLESS(m_page_group->GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
// Lock ourselves.
KScopedLightLock lk(m_lock);
// Unmap the memory.
- R_TRY(m_owner->PageTable().UnmapPages(address, m_page_group, KMemoryState::GeneratedCode));
+ R_TRY(m_owner->PageTable().UnmapPages(address, *m_page_group, KMemoryState::GeneratedCode));
// Mark ourselves as unmapped.
m_is_owner_mapped = false;
diff --git a/src/core/hle/kernel/k_code_memory.h b/src/core/hle/kernel/k_code_memory.h
index 2e7e1436a..5b260b385 100644
--- a/src/core/hle/kernel/k_code_memory.h
+++ b/src/core/hle/kernel/k_code_memory.h
@@ -3,6 +3,8 @@
#pragma once
+#include <optional>
+
#include "common/common_types.h"
#include "core/device_memory.h"
#include "core/hle/kernel/k_auto_object.h"
@@ -49,11 +51,11 @@ public:
return m_address;
}
size_t GetSize() const {
- return m_is_initialized ? m_page_group.GetNumPages() * PageSize : 0;
+ return m_is_initialized ? m_page_group->GetNumPages() * PageSize : 0;
}
private:
- KPageGroup m_page_group{};
+ std::optional<KPageGroup> m_page_group{};
KProcess* m_owner{};
VAddr m_address{};
KLightLock m_lock;
diff --git a/src/core/hle/kernel/k_memory_manager.cpp b/src/core/hle/kernel/k_memory_manager.cpp
index bd33571da..cd6ea388e 100644
--- a/src/core/hle/kernel/k_memory_manager.cpp
+++ b/src/core/hle/kernel/k_memory_manager.cpp
@@ -223,7 +223,7 @@ Result KMemoryManager::AllocatePageGroupImpl(KPageGroup* out, size_t num_pages,
// Ensure that we don't leave anything un-freed.
ON_RESULT_FAILURE {
- for (const auto& it : out->Nodes()) {
+ for (const auto& it : *out) {
auto& manager = this->GetManager(it.GetAddress());
const size_t node_num_pages = std::min<u64>(
it.GetNumPages(), (manager.GetEndAddress() - it.GetAddress()) / PageSize);
@@ -285,7 +285,7 @@ Result KMemoryManager::AllocateAndOpen(KPageGroup* out, size_t num_pages, u32 op
m_has_optimized_process[static_cast<size_t>(pool)], true));
// Open the first reference to the pages.
- for (const auto& block : out->Nodes()) {
+ for (const auto& block : *out) {
PAddr cur_address = block.GetAddress();
size_t remaining_pages = block.GetNumPages();
while (remaining_pages > 0) {
@@ -335,7 +335,7 @@ Result KMemoryManager::AllocateForProcess(KPageGroup* out, size_t num_pages, u32
// Perform optimized memory tracking, if we should.
if (optimized) {
// Iterate over the allocated blocks.
- for (const auto& block : out->Nodes()) {
+ for (const auto& block : *out) {
// Get the block extents.
const PAddr block_address = block.GetAddress();
const size_t block_pages = block.GetNumPages();
@@ -391,7 +391,7 @@ Result KMemoryManager::AllocateForProcess(KPageGroup* out, size_t num_pages, u32
}
} else {
// Set all the allocated memory.
- for (const auto& block : out->Nodes()) {
+ for (const auto& block : *out) {
std::memset(m_system.DeviceMemory().GetPointer<void>(block.GetAddress()), fill_pattern,
block.GetSize());
}
diff --git a/src/core/hle/kernel/k_page_group.cpp b/src/core/hle/kernel/k_page_group.cpp
new file mode 100644
index 000000000..d8c644a33
--- /dev/null
+++ b/src/core/hle/kernel/k_page_group.cpp
@@ -0,0 +1,121 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/kernel/k_dynamic_resource_manager.h"
+#include "core/hle/kernel/k_memory_manager.h"
+#include "core/hle/kernel/k_page_group.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/svc_results.h"
+
+namespace Kernel {
+
+void KPageGroup::Finalize() {
+ KBlockInfo* cur = m_first_block;
+ while (cur != nullptr) {
+ KBlockInfo* next = cur->GetNext();
+ m_manager->Free(cur);
+ cur = next;
+ }
+
+ m_first_block = nullptr;
+ m_last_block = nullptr;
+}
+
+void KPageGroup::CloseAndReset() {
+ auto& mm = m_kernel.MemoryManager();
+
+ KBlockInfo* cur = m_first_block;
+ while (cur != nullptr) {
+ KBlockInfo* next = cur->GetNext();
+ mm.Close(cur->GetAddress(), cur->GetNumPages());
+ m_manager->Free(cur);
+ cur = next;
+ }
+
+ m_first_block = nullptr;
+ m_last_block = nullptr;
+}
+
+size_t KPageGroup::GetNumPages() const {
+ size_t num_pages = 0;
+
+ for (const auto& it : *this) {
+ num_pages += it.GetNumPages();
+ }
+
+ return num_pages;
+}
+
+Result KPageGroup::AddBlock(KPhysicalAddress addr, size_t num_pages) {
+ // Succeed immediately if we're adding no pages.
+ R_SUCCEED_IF(num_pages == 0);
+
+ // Check for overflow.
+ ASSERT(addr < addr + num_pages * PageSize);
+
+ // Try to just append to the last block.
+ if (m_last_block != nullptr) {
+ R_SUCCEED_IF(m_last_block->TryConcatenate(addr, num_pages));
+ }
+
+ // Allocate a new block.
+ KBlockInfo* new_block = m_manager->Allocate();
+ R_UNLESS(new_block != nullptr, ResultOutOfResource);
+
+ // Initialize the block.
+ new_block->Initialize(addr, num_pages);
+
+ // Add the block to our list.
+ if (m_last_block != nullptr) {
+ m_last_block->SetNext(new_block);
+ } else {
+ m_first_block = new_block;
+ }
+ m_last_block = new_block;
+
+ R_SUCCEED();
+}
+
+void KPageGroup::Open() const {
+ auto& mm = m_kernel.MemoryManager();
+
+ for (const auto& it : *this) {
+ mm.Open(it.GetAddress(), it.GetNumPages());
+ }
+}
+
+void KPageGroup::OpenFirst() const {
+ auto& mm = m_kernel.MemoryManager();
+
+ for (const auto& it : *this) {
+ mm.OpenFirst(it.GetAddress(), it.GetNumPages());
+ }
+}
+
+void KPageGroup::Close() const {
+ auto& mm = m_kernel.MemoryManager();
+
+ for (const auto& it : *this) {
+ mm.Close(it.GetAddress(), it.GetNumPages());
+ }
+}
+
+bool KPageGroup::IsEquivalentTo(const KPageGroup& rhs) const {
+ auto lit = this->begin();
+ auto rit = rhs.begin();
+ auto lend = this->end();
+ auto rend = rhs.end();
+
+ while (lit != lend && rit != rend) {
+ if (*lit != *rit) {
+ return false;
+ }
+
+ ++lit;
+ ++rit;
+ }
+
+ return lit == lend && rit == rend;
+}
+
+} // namespace Kernel
diff --git a/src/core/hle/kernel/k_page_group.h b/src/core/hle/kernel/k_page_group.h
index 316f172f2..c07f17663 100644
--- a/src/core/hle/kernel/k_page_group.h
+++ b/src/core/hle/kernel/k_page_group.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
@@ -13,24 +13,23 @@
namespace Kernel {
+class KBlockInfoManager;
+class KernelCore;
class KPageGroup;
class KBlockInfo {
-private:
- friend class KPageGroup;
-
public:
- constexpr KBlockInfo() = default;
+ constexpr explicit KBlockInfo() : m_next(nullptr) {}
- constexpr void Initialize(PAddr addr, size_t np) {
+ constexpr void Initialize(KPhysicalAddress addr, size_t np) {
ASSERT(Common::IsAligned(addr, PageSize));
ASSERT(static_cast<u32>(np) == np);
- m_page_index = static_cast<u32>(addr) / PageSize;
+ m_page_index = static_cast<u32>(addr / PageSize);
m_num_pages = static_cast<u32>(np);
}
- constexpr PAddr GetAddress() const {
+ constexpr KPhysicalAddress GetAddress() const {
return m_page_index * PageSize;
}
constexpr size_t GetNumPages() const {
@@ -39,10 +38,10 @@ public:
constexpr size_t GetSize() const {
return this->GetNumPages() * PageSize;
}
- constexpr PAddr GetEndAddress() const {
+ constexpr KPhysicalAddress GetEndAddress() const {
return (m_page_index + m_num_pages) * PageSize;
}
- constexpr PAddr GetLastAddress() const {
+ constexpr KPhysicalAddress GetLastAddress() const {
return this->GetEndAddress() - 1;
}
@@ -62,8 +61,8 @@ public:
return !(*this == rhs);
}
- constexpr bool IsStrictlyBefore(PAddr addr) const {
- const PAddr end = this->GetEndAddress();
+ constexpr bool IsStrictlyBefore(KPhysicalAddress addr) const {
+ const KPhysicalAddress end = this->GetEndAddress();
if (m_page_index != 0 && end == 0) {
return false;
@@ -72,11 +71,11 @@ public:
return end < addr;
}
- constexpr bool operator<(PAddr addr) const {
+ constexpr bool operator<(KPhysicalAddress addr) const {
return this->IsStrictlyBefore(addr);
}
- constexpr bool TryConcatenate(PAddr addr, size_t np) {
+ constexpr bool TryConcatenate(KPhysicalAddress addr, size_t np) {
if (addr != 0 && addr == this->GetEndAddress()) {
m_num_pages += static_cast<u32>(np);
return true;
@@ -90,96 +89,118 @@ private:
}
private:
+ friend class KPageGroup;
+
KBlockInfo* m_next{};
u32 m_page_index{};
u32 m_num_pages{};
};
static_assert(sizeof(KBlockInfo) <= 0x10);
-class KPageGroup final {
+class KPageGroup {
public:
- class Node final {
+ class Iterator {
public:
- constexpr Node(u64 addr_, std::size_t num_pages_) : addr{addr_}, num_pages{num_pages_} {}
+ using iterator_category = std::forward_iterator_tag;
+ using value_type = const KBlockInfo;
+ using difference_type = std::ptrdiff_t;
+ using pointer = value_type*;
+ using reference = value_type&;
+
+ constexpr explicit Iterator(pointer n) : m_node(n) {}
+
+ constexpr bool operator==(const Iterator& rhs) const {
+ return m_node == rhs.m_node;
+ }
+ constexpr bool operator!=(const Iterator& rhs) const {
+ return !(*this == rhs);
+ }
- constexpr u64 GetAddress() const {
- return addr;
+ constexpr pointer operator->() const {
+ return m_node;
+ }
+ constexpr reference operator*() const {
+ return *m_node;
}
- constexpr std::size_t GetNumPages() const {
- return num_pages;
+ constexpr Iterator& operator++() {
+ m_node = m_node->GetNext();
+ return *this;
}
- constexpr std::size_t GetSize() const {
- return GetNumPages() * PageSize;
+ constexpr Iterator operator++(int) {
+ const Iterator it{*this};
+ ++(*this);
+ return it;
}
private:
- u64 addr{};
- std::size_t num_pages{};
+ pointer m_node{};
};
-public:
- KPageGroup() = default;
- KPageGroup(u64 address, u64 num_pages) {
- ASSERT(AddBlock(address, num_pages).IsSuccess());
+ explicit KPageGroup(KernelCore& kernel, KBlockInfoManager* m)
+ : m_kernel{kernel}, m_manager{m} {}
+ ~KPageGroup() {
+ this->Finalize();
}
- constexpr std::list<Node>& Nodes() {
- return nodes;
- }
+ void CloseAndReset();
+ void Finalize();
- constexpr const std::list<Node>& Nodes() const {
- return nodes;
+ Iterator begin() const {
+ return Iterator{m_first_block};
+ }
+ Iterator end() const {
+ return Iterator{nullptr};
+ }
+ bool empty() const {
+ return m_first_block == nullptr;
}
- std::size_t GetNumPages() const {
- std::size_t num_pages = 0;
- for (const Node& node : nodes) {
- num_pages += node.GetNumPages();
- }
- return num_pages;
- }
-
- bool IsEqual(KPageGroup& other) const {
- auto this_node = nodes.begin();
- auto other_node = other.nodes.begin();
- while (this_node != nodes.end() && other_node != other.nodes.end()) {
- if (this_node->GetAddress() != other_node->GetAddress() ||
- this_node->GetNumPages() != other_node->GetNumPages()) {
- return false;
- }
- this_node = std::next(this_node);
- other_node = std::next(other_node);
- }
+ Result AddBlock(KPhysicalAddress addr, size_t num_pages);
+ void Open() const;
+ void OpenFirst() const;
+ void Close() const;
+
+ size_t GetNumPages() const;
+
+ bool IsEquivalentTo(const KPageGroup& rhs) const;
+
+ bool operator==(const KPageGroup& rhs) const {
+ return this->IsEquivalentTo(rhs);
+ }
- return this_node == nodes.end() && other_node == other.nodes.end();
+ bool operator!=(const KPageGroup& rhs) const {
+ return !(*this == rhs);
}
- Result AddBlock(u64 address, u64 num_pages) {
- if (!num_pages) {
- return ResultSuccess;
+private:
+ KernelCore& m_kernel;
+ KBlockInfo* m_first_block{};
+ KBlockInfo* m_last_block{};
+ KBlockInfoManager* m_manager{};
+};
+
+class KScopedPageGroup {
+public:
+ explicit KScopedPageGroup(const KPageGroup* gp) : m_pg(gp) {
+ if (m_pg) {
+ m_pg->Open();
}
- if (!nodes.empty()) {
- const auto node = nodes.back();
- if (node.GetAddress() + node.GetNumPages() * PageSize == address) {
- address = node.GetAddress();
- num_pages += node.GetNumPages();
- nodes.pop_back();
- }
+ }
+ explicit KScopedPageGroup(const KPageGroup& gp) : KScopedPageGroup(std::addressof(gp)) {}
+ ~KScopedPageGroup() {
+ if (m_pg) {
+ m_pg->Close();
}
- nodes.push_back({address, num_pages});
- return ResultSuccess;
}
- bool Empty() const {
- return nodes.empty();
+ void CancelClose() {
+ m_pg = nullptr;
}
- void Finalize() {}
-
private:
- std::list<Node> nodes;
+ const KPageGroup* m_pg{};
};
} // namespace Kernel
diff --git a/src/core/hle/kernel/k_page_table.cpp b/src/core/hle/kernel/k_page_table.cpp
index 612fc76fa..9c7ac22dc 100644
--- a/src/core/hle/kernel/k_page_table.cpp
+++ b/src/core/hle/kernel/k_page_table.cpp
@@ -100,7 +100,7 @@ constexpr size_t GetAddressSpaceWidthFromType(FileSys::ProgramAddressSpaceType a
KPageTable::KPageTable(Core::System& system_)
: m_general_lock{system_.Kernel()},
- m_map_physical_memory_lock{system_.Kernel()}, m_system{system_} {}
+ m_map_physical_memory_lock{system_.Kernel()}, m_system{system_}, m_kernel{system_.Kernel()} {}
KPageTable::~KPageTable() = default;
@@ -373,7 +373,7 @@ Result KPageTable::MapProcessCode(VAddr addr, size_t num_pages, KMemoryState sta
m_memory_block_slab_manager);
// Allocate and open.
- KPageGroup pg;
+ KPageGroup pg{m_kernel, m_block_info_manager};
R_TRY(m_system.Kernel().MemoryManager().AllocateAndOpen(
&pg, num_pages,
KMemoryManager::EncodeOption(KMemoryManager::Pool::Application, m_allocation_option)));
@@ -432,7 +432,7 @@ Result KPageTable::MapCodeMemory(VAddr dst_address, VAddr src_address, size_t si
const size_t num_pages = size / PageSize;
// Create page groups for the memory being mapped.
- KPageGroup pg;
+ KPageGroup pg{m_kernel, m_block_info_manager};
AddRegionToPages(src_address, num_pages, pg);
// Reprotect the source as kernel-read/not mapped.
@@ -593,7 +593,7 @@ Result KPageTable::MakePageGroup(KPageGroup& pg, VAddr addr, size_t num_pages) {
const size_t size = num_pages * PageSize;
// We're making a new group, not adding to an existing one.
- R_UNLESS(pg.Empty(), ResultInvalidCurrentMemory);
+ R_UNLESS(pg.empty(), ResultInvalidCurrentMemory);
// Begin traversal.
Common::PageTable::TraversalContext context;
@@ -640,11 +640,10 @@ Result KPageTable::MakePageGroup(KPageGroup& pg, VAddr addr, size_t num_pages) {
R_SUCCEED();
}
-bool KPageTable::IsValidPageGroup(const KPageGroup& pg_ll, VAddr addr, size_t num_pages) {
+bool KPageTable::IsValidPageGroup(const KPageGroup& pg, VAddr addr, size_t num_pages) {
ASSERT(this->IsLockedByCurrentThread());
const size_t size = num_pages * PageSize;
- const auto& pg = pg_ll.Nodes();
const auto& memory_layout = m_system.Kernel().MemoryLayout();
// Empty groups are necessarily invalid.
@@ -942,9 +941,6 @@ Result KPageTable::SetupForIpcServer(VAddr* out_addr, size_t size, VAddr src_add
ON_RESULT_FAILURE {
if (cur_mapped_addr != dst_addr) {
- // HACK: Manually close the pages.
- HACK_ClosePages(dst_addr, (cur_mapped_addr - dst_addr) / PageSize);
-
ASSERT(Operate(dst_addr, (cur_mapped_addr - dst_addr) / PageSize,
KMemoryPermission::None, OperationType::Unmap)
.IsSuccess());
@@ -1020,9 +1016,6 @@ Result KPageTable::SetupForIpcServer(VAddr* out_addr, size_t size, VAddr src_add
// Map the page.
R_TRY(Operate(cur_mapped_addr, 1, test_perm, OperationType::Map, start_partial_page));
- // HACK: Manually open the pages.
- HACK_OpenPages(start_partial_page, 1);
-
// Update tracking extents.
cur_mapped_addr += PageSize;
cur_block_addr += PageSize;
@@ -1051,9 +1044,6 @@ Result KPageTable::SetupForIpcServer(VAddr* out_addr, size_t size, VAddr src_add
R_TRY(Operate(cur_mapped_addr, cur_block_size / PageSize, test_perm, OperationType::Map,
cur_block_addr));
- // HACK: Manually open the pages.
- HACK_OpenPages(cur_block_addr, cur_block_size / PageSize);
-
// Update tracking extents.
cur_mapped_addr += cur_block_size;
cur_block_addr = next_entry.phys_addr;
@@ -1073,9 +1063,6 @@ Result KPageTable::SetupForIpcServer(VAddr* out_addr, size_t size, VAddr src_add
R_TRY(Operate(cur_mapped_addr, last_block_size / PageSize, test_perm, OperationType::Map,
cur_block_addr));
- // HACK: Manually open the pages.
- HACK_OpenPages(cur_block_addr, last_block_size / PageSize);
-
// Update tracking extents.
cur_mapped_addr += last_block_size;
cur_block_addr += last_block_size;
@@ -1107,9 +1094,6 @@ Result KPageTable::SetupForIpcServer(VAddr* out_addr, size_t size, VAddr src_add
// Map the page.
R_TRY(Operate(cur_mapped_addr, 1, test_perm, OperationType::Map, end_partial_page));
-
- // HACK: Manually open the pages.
- HACK_OpenPages(end_partial_page, 1);
}
// Update memory blocks to reflect our changes
@@ -1211,9 +1195,6 @@ Result KPageTable::CleanupForIpcServer(VAddr address, size_t size, KMemoryState
const size_t aligned_size = aligned_end - aligned_start;
const size_t aligned_num_pages = aligned_size / PageSize;
- // HACK: Manually close the pages.
- HACK_ClosePages(aligned_start, aligned_num_pages);
-
// Unmap the pages.
R_TRY(Operate(aligned_start, aligned_num_pages, KMemoryPermission::None, OperationType::Unmap));
@@ -1501,17 +1482,6 @@ void KPageTable::CleanupForIpcClientOnServerSetupFailure([[maybe_unused]] PageLi
}
}
-void KPageTable::HACK_OpenPages(PAddr phys_addr, size_t num_pages) {
- m_system.Kernel().MemoryManager().OpenFirst(phys_addr, num_pages);
-}
-
-void KPageTable::HACK_ClosePages(VAddr virt_addr, size_t num_pages) {
- for (size_t index = 0; index < num_pages; ++index) {
- const auto paddr = GetPhysicalAddr(virt_addr + (index * PageSize));
- m_system.Kernel().MemoryManager().Close(paddr, 1);
- }
-}
-
Result KPageTable::MapPhysicalMemory(VAddr address, size_t size) {
// Lock the physical memory lock.
KScopedLightLock phys_lk(m_map_physical_memory_lock);
@@ -1572,7 +1542,7 @@ Result KPageTable::MapPhysicalMemory(VAddr address, size_t size) {
R_UNLESS(memory_reservation.Succeeded(), ResultLimitReached);
// Allocate pages for the new memory.
- KPageGroup pg;
+ KPageGroup pg{m_kernel, m_block_info_manager};
R_TRY(m_system.Kernel().MemoryManager().AllocateForProcess(
&pg, (size - mapped_size) / PageSize, m_allocate_option, 0, 0));
@@ -1650,7 +1620,7 @@ Result KPageTable::MapPhysicalMemory(VAddr address, size_t size) {
KScopedPageTableUpdater updater(this);
// Prepare to iterate over the memory.
- auto pg_it = pg.Nodes().begin();
+ auto pg_it = pg.begin();
PAddr pg_phys_addr = pg_it->GetAddress();
size_t pg_pages = pg_it->GetNumPages();
@@ -1680,9 +1650,6 @@ Result KPageTable::MapPhysicalMemory(VAddr address, size_t size) {
last_unmap_address + 1 - cur_address) /
PageSize;
- // HACK: Manually close the pages.
- HACK_ClosePages(cur_address, cur_pages);
-
// Unmap.
ASSERT(Operate(cur_address, cur_pages, KMemoryPermission::None,
OperationType::Unmap)
@@ -1703,7 +1670,7 @@ Result KPageTable::MapPhysicalMemory(VAddr address, size_t size) {
// Release any remaining unmapped memory.
m_system.Kernel().MemoryManager().OpenFirst(pg_phys_addr, pg_pages);
m_system.Kernel().MemoryManager().Close(pg_phys_addr, pg_pages);
- for (++pg_it; pg_it != pg.Nodes().end(); ++pg_it) {
+ for (++pg_it; pg_it != pg.end(); ++pg_it) {
m_system.Kernel().MemoryManager().OpenFirst(pg_it->GetAddress(),
pg_it->GetNumPages());
m_system.Kernel().MemoryManager().Close(pg_it->GetAddress(),
@@ -1731,7 +1698,7 @@ Result KPageTable::MapPhysicalMemory(VAddr address, size_t size) {
// Check if we're at the end of the physical block.
if (pg_pages == 0) {
// Ensure there are more pages to map.
- ASSERT(pg_it != pg.Nodes().end());
+ ASSERT(pg_it != pg.end());
// Advance our physical block.
++pg_it;
@@ -1742,10 +1709,7 @@ Result KPageTable::MapPhysicalMemory(VAddr address, size_t size) {
// Map whatever we can.
const size_t cur_pages = std::min(pg_pages, map_pages);
R_TRY(Operate(cur_address, cur_pages, KMemoryPermission::UserReadWrite,
- OperationType::Map, pg_phys_addr));
-
- // HACK: Manually open the pages.
- HACK_OpenPages(pg_phys_addr, cur_pages);
+ OperationType::MapFirst, pg_phys_addr));
// Advance.
cur_address += cur_pages * PageSize;
@@ -1888,9 +1852,6 @@ Result KPageTable::UnmapPhysicalMemory(VAddr address, size_t size) {
last_address + 1 - cur_address) /
PageSize;
- // HACK: Manually close the pages.
- HACK_ClosePages(cur_address, cur_pages);
-
// Unmap.
ASSERT(Operate(cur_address, cur_pages, KMemoryPermission::None, OperationType::Unmap)
.IsSuccess());
@@ -1955,7 +1916,7 @@ Result KPageTable::MapMemory(VAddr dst_address, VAddr src_address, size_t size)
R_TRY(dst_allocator_result);
// Map the memory.
- KPageGroup page_linked_list;
+ KPageGroup page_linked_list{m_kernel, m_block_info_manager};
const size_t num_pages{size / PageSize};
const KMemoryPermission new_src_perm = static_cast<KMemoryPermission>(
KMemoryPermission::KernelRead | KMemoryPermission::NotMapped);
@@ -2022,14 +1983,14 @@ Result KPageTable::UnmapMemory(VAddr dst_address, VAddr src_address, size_t size
num_dst_allocator_blocks);
R_TRY(dst_allocator_result);
- KPageGroup src_pages;
- KPageGroup dst_pages;
+ KPageGroup src_pages{m_kernel, m_block_info_manager};
+ KPageGroup dst_pages{m_kernel, m_block_info_manager};
const size_t num_pages{size / PageSize};
AddRegionToPages(src_address, num_pages, src_pages);
AddRegionToPages(dst_address, num_pages, dst_pages);
- R_UNLESS(dst_pages.IsEqual(src_pages), ResultInvalidMemoryRegion);
+ R_UNLESS(dst_pages.IsEquivalentTo(src_pages), ResultInvalidMemoryRegion);
{
auto block_guard = detail::ScopeExit([&] { MapPages(dst_address, dst_pages, dst_perm); });
@@ -2060,7 +2021,7 @@ Result KPageTable::MapPages(VAddr addr, const KPageGroup& page_linked_list,
VAddr cur_addr{addr};
- for (const auto& node : page_linked_list.Nodes()) {
+ for (const auto& node : page_linked_list) {
if (const auto result{
Operate(cur_addr, node.GetNumPages(), perm, OperationType::Map, node.GetAddress())};
result.IsError()) {
@@ -2160,7 +2121,7 @@ Result KPageTable::UnmapPages(VAddr addr, const KPageGroup& page_linked_list) {
VAddr cur_addr{addr};
- for (const auto& node : page_linked_list.Nodes()) {
+ for (const auto& node : page_linked_list) {
if (const auto result{Operate(cur_addr, node.GetNumPages(), KMemoryPermission::None,
OperationType::Unmap)};
result.IsError()) {
@@ -2527,13 +2488,13 @@ Result KPageTable::SetHeapSize(VAddr* out, size_t size) {
R_UNLESS(memory_reservation.Succeeded(), ResultLimitReached);
// Allocate pages for the heap extension.
- KPageGroup pg;
+ KPageGroup pg{m_kernel, m_block_info_manager};
R_TRY(m_system.Kernel().MemoryManager().AllocateAndOpen(
&pg, allocation_size / PageSize,
KMemoryManager::EncodeOption(m_memory_pool, m_allocation_option)));
// Clear all the newly allocated pages.
- for (const auto& it : pg.Nodes()) {
+ for (const auto& it : pg) {
std::memset(m_system.DeviceMemory().GetPointer<void>(it.GetAddress()), m_heap_fill_value,
it.GetSize());
}
@@ -2610,11 +2571,23 @@ ResultVal<VAddr> KPageTable::AllocateAndMapMemory(size_t needed_num_pages, size_
if (is_map_only) {
R_TRY(Operate(addr, needed_num_pages, perm, OperationType::Map, map_addr));
} else {
- KPageGroup page_group;
- R_TRY(m_system.Kernel().MemoryManager().AllocateForProcess(
- &page_group, needed_num_pages,
- KMemoryManager::EncodeOption(m_memory_pool, m_allocation_option), 0, 0));
- R_TRY(Operate(addr, needed_num_pages, page_group, OperationType::MapGroup));
+ // Create a page group tohold the pages we allocate.
+ KPageGroup pg{m_kernel, m_block_info_manager};
+
+ R_TRY(m_system.Kernel().MemoryManager().AllocateAndOpen(
+ &pg, needed_num_pages,
+ KMemoryManager::EncodeOption(m_memory_pool, m_allocation_option)));
+
+ // Ensure that the page group is closed when we're done working with it.
+ SCOPE_EXIT({ pg.Close(); });
+
+ // Clear all pages.
+ for (const auto& it : pg) {
+ std::memset(m_system.DeviceMemory().GetPointer<void>(it.GetAddress()),
+ m_heap_fill_value, it.GetSize());
+ }
+
+ R_TRY(Operate(addr, needed_num_pages, pg, OperationType::MapGroup));
}
// Update the blocks.
@@ -2795,19 +2768,28 @@ Result KPageTable::Operate(VAddr addr, size_t num_pages, const KPageGroup& page_
ASSERT(num_pages > 0);
ASSERT(num_pages == page_group.GetNumPages());
- for (const auto& node : page_group.Nodes()) {
- const size_t size{node.GetNumPages() * PageSize};
+ switch (operation) {
+ case OperationType::MapGroup: {
+ // We want to maintain a new reference to every page in the group.
+ KScopedPageGroup spg(page_group);
+
+ for (const auto& node : page_group) {
+ const size_t size{node.GetNumPages() * PageSize};
- switch (operation) {
- case OperationType::MapGroup:
+ // Map the pages.
m_system.Memory().MapMemoryRegion(*m_page_table_impl, addr, size, node.GetAddress());
- break;
- default:
- ASSERT(false);
- break;
+
+ addr += size;
}
- addr += size;
+ // We succeeded! We want to persist the reference to the pages.
+ spg.CancelClose();
+
+ break;
+ }
+ default:
+ ASSERT(false);
+ break;
}
R_SUCCEED();
@@ -2822,13 +2804,29 @@ Result KPageTable::Operate(VAddr addr, size_t num_pages, KMemoryPermission perm,
ASSERT(ContainsPages(addr, num_pages));
switch (operation) {
- case OperationType::Unmap:
+ case OperationType::Unmap: {
+ // Ensure that any pages we track close on exit.
+ KPageGroup pages_to_close{m_kernel, this->GetBlockInfoManager()};
+ SCOPE_EXIT({ pages_to_close.CloseAndReset(); });
+
+ this->AddRegionToPages(addr, num_pages, pages_to_close);
m_system.Memory().UnmapRegion(*m_page_table_impl, addr, num_pages * PageSize);
break;
+ }
+ case OperationType::MapFirst:
case OperationType::Map: {
ASSERT(map_addr);
ASSERT(Common::IsAligned(map_addr, PageSize));
m_system.Memory().MapMemoryRegion(*m_page_table_impl, addr, num_pages * PageSize, map_addr);
+
+ // Open references to pages, if we should.
+ if (IsHeapPhysicalAddress(m_kernel.MemoryLayout(), map_addr)) {
+ if (operation == OperationType::MapFirst) {
+ m_kernel.MemoryManager().OpenFirst(map_addr, num_pages);
+ } else {
+ m_kernel.MemoryManager().Open(map_addr, num_pages);
+ }
+ }
break;
}
case OperationType::Separate: {
diff --git a/src/core/hle/kernel/k_page_table.h b/src/core/hle/kernel/k_page_table.h
index f1ca785d7..0a454b05b 100644
--- a/src/core/hle/kernel/k_page_table.h
+++ b/src/core/hle/kernel/k_page_table.h
@@ -107,6 +107,10 @@ public:
return *m_page_table_impl;
}
+ KBlockInfoManager* GetBlockInfoManager() {
+ return m_block_info_manager;
+ }
+
bool CanContain(VAddr addr, size_t size, KMemoryState state) const;
protected:
@@ -261,10 +265,6 @@ private:
void CleanupForIpcClientOnServerSetupFailure(PageLinkedList* page_list, VAddr address,
size_t size, KMemoryPermission prot_perm);
- // HACK: These will be removed once we automatically manage page reference counts.
- void HACK_OpenPages(PAddr phys_addr, size_t num_pages);
- void HACK_ClosePages(VAddr virt_addr, size_t num_pages);
-
mutable KLightLock m_general_lock;
mutable KLightLock m_map_physical_memory_lock;
@@ -488,6 +488,7 @@ private:
std::unique_ptr<Common::PageTable> m_page_table_impl;
Core::System& m_system;
+ KernelCore& m_kernel;
};
} // namespace Kernel
diff --git a/src/core/hle/kernel/k_shared_memory.cpp b/src/core/hle/kernel/k_shared_memory.cpp
index 0aa68103c..3cf2b5d91 100644
--- a/src/core/hle/kernel/k_shared_memory.cpp
+++ b/src/core/hle/kernel/k_shared_memory.cpp
@@ -13,10 +13,7 @@
namespace Kernel {
KSharedMemory::KSharedMemory(KernelCore& kernel_) : KAutoObjectWithSlabHeapAndContainer{kernel_} {}
-
-KSharedMemory::~KSharedMemory() {
- kernel.GetSystemResourceLimit()->Release(LimitableResource::PhysicalMemoryMax, size);
-}
+KSharedMemory::~KSharedMemory() = default;
Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* owner_process_,
Svc::MemoryPermission owner_permission_,
@@ -49,7 +46,8 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
R_UNLESS(physical_address != 0, ResultOutOfMemory);
//! Insert the result into our page group.
- page_group.emplace(physical_address, num_pages);
+ page_group.emplace(kernel, &kernel.GetSystemSystemResource().GetBlockInfoManager());
+ page_group->AddBlock(physical_address, num_pages);
// Commit our reservation.
memory_reservation.Commit();
@@ -62,7 +60,7 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
is_initialized = true;
// Clear all pages in the memory.
- for (const auto& block : page_group->Nodes()) {
+ for (const auto& block : *page_group) {
std::memset(device_memory_.GetPointer<void>(block.GetAddress()), 0, block.GetSize());
}
@@ -71,13 +69,8 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
void KSharedMemory::Finalize() {
// Close and finalize the page group.
- // page_group->Close();
- // page_group->Finalize();
-
- //! HACK: Manually close.
- for (const auto& block : page_group->Nodes()) {
- kernel.MemoryManager().Close(block.GetAddress(), block.GetNumPages());
- }
+ page_group->Close();
+ page_group->Finalize();
// Release the memory reservation.
resource_limit->Release(LimitableResource::PhysicalMemoryMax, size);
diff --git a/src/core/hle/kernel/memory_types.h b/src/core/hle/kernel/memory_types.h
index 3975507bd..92b8b37ac 100644
--- a/src/core/hle/kernel/memory_types.h
+++ b/src/core/hle/kernel/memory_types.h
@@ -14,4 +14,7 @@ constexpr std::size_t PageSize{1 << PageBits};
using Page = std::array<u8, PageSize>;
+using KPhysicalAddress = PAddr;
+using KProcessAddress = VAddr;
+
} // namespace Kernel
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 788ee2160..aca442196 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -1485,7 +1485,7 @@ static Result MapProcessMemory(Core::System& system, VAddr dst_address, Handle p
ResultInvalidMemoryRegion);
// Create a new page group.
- KPageGroup pg;
+ KPageGroup pg{system.Kernel(), dst_pt.GetBlockInfoManager()};
R_TRY(src_pt.MakeAndOpenPageGroup(
std::addressof(pg), src_address, size / PageSize, KMemoryState::FlagCanMapProcess,
KMemoryState::FlagCanMapProcess, KMemoryPermission::None, KMemoryPermission::None,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:11:45 +0100