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-rw-r--r--src/core/arm/dynarmic/arm_dynarmic.cpp5
-rw-r--r--src/core/hle/kernel/vm_manager.cpp18
-rw-r--r--src/core/hle/kernel/vm_manager.h3
-rw-r--r--src/core/memory.cpp18
-rw-r--r--src/core/memory.h32
-rw-r--r--src/tests/core/arm/arm_test_common.cpp7
6 files changed, 61 insertions, 22 deletions
diff --git a/src/core/arm/dynarmic/arm_dynarmic.cpp b/src/core/arm/dynarmic/arm_dynarmic.cpp
index 7be5a38de..928bbc096 100644
--- a/src/core/arm/dynarmic/arm_dynarmic.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic.cpp
@@ -129,7 +129,8 @@ public:
};
std::unique_ptr<Dynarmic::A64::Jit> ARM_Dynarmic::MakeJit() const {
- auto** const page_table = Core::CurrentProcess()->vm_manager.page_table.pointers.data();
+ auto& current_process = Core::CurrentProcess();
+ auto** const page_table = current_process->vm_manager.page_table.pointers.data();
Dynarmic::A64::UserConfig config;
@@ -138,7 +139,7 @@ std::unique_ptr<Dynarmic::A64::Jit> ARM_Dynarmic::MakeJit() const {
// Memory
config.page_table = reinterpret_cast<void**>(page_table);
- config.page_table_address_space_bits = Memory::ADDRESS_SPACE_BITS;
+ config.page_table_address_space_bits = current_process->vm_manager.GetAddressSpaceWidth();
config.silently_mirror_page_table = false;
// Multi-process state
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp
index 337f17b7b..20d06f000 100644
--- a/src/core/hle/kernel/vm_manager.cpp
+++ b/src/core/hle/kernel/vm_manager.cpp
@@ -66,18 +66,21 @@ VMManager::~VMManager() {
void VMManager::Reset(FileSys::ProgramAddressSpaceType type) {
Clear();
+
InitializeMemoryRegionRanges(type);
+ page_table.Resize(address_space_width);
+
// Initialize the map with a single free region covering the entire managed space.
VirtualMemoryArea initial_vma;
- initial_vma.size = MAX_ADDRESS;
+ initial_vma.size = address_space_end;
vma_map.emplace(initial_vma.base, initial_vma);
UpdatePageTableForVMA(initial_vma);
}
VMManager::VMAHandle VMManager::FindVMA(VAddr target) const {
- if (target >= MAX_ADDRESS) {
+ if (target >= address_space_end) {
return vma_map.end();
} else {
return std::prev(vma_map.upper_bound(target));
@@ -291,7 +294,7 @@ ResultVal<VMManager::VMAIter> VMManager::CarveVMARange(VAddr target, u64 size) {
const VAddr target_end = target + size;
ASSERT(target_end >= target);
- ASSERT(target_end <= MAX_ADDRESS);
+ ASSERT(target_end <= address_space_end);
ASSERT(size > 0);
VMAIter begin_vma = StripIterConstness(FindVMA(target));
@@ -455,9 +458,10 @@ void VMManager::ClearVMAMap() {
}
void VMManager::ClearPageTable() {
- page_table.pointers.fill(nullptr);
+ std::fill(page_table.pointers.begin(), page_table.pointers.end(), nullptr);
page_table.special_regions.clear();
- page_table.attributes.fill(Memory::PageType::Unmapped);
+ std::fill(page_table.attributes.begin(), page_table.attributes.end(),
+ Memory::PageType::Unmapped);
}
u64 VMManager::GetTotalMemoryUsage() const {
@@ -480,6 +484,10 @@ u64 VMManager::GetAddressSpaceSize() const {
return MAX_ADDRESS;
}
+u64 VMManager::GetAddressSpaceWidth() const {
+ return address_space_width;
+}
+
VAddr VMManager::GetCodeRegionBaseAddress() const {
return code_region_base;
}
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index 0ce240126..581bf3d00 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -205,6 +205,9 @@ public:
/// Gets the total address space address size, used by svcGetInfo
u64 GetAddressSpaceSize() const;
+ /// Gets the address space width in bits.
+ u64 GetAddressSpaceWidth() const;
+
/// Gets the base address of the code region.
VAddr GetCodeRegionBaseAddress() const;
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 316b46820..674ef0829 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -3,7 +3,6 @@
// Refer to the license.txt file included.
#include <algorithm>
-#include <array>
#include <cstring>
#include <utility>
@@ -41,6 +40,21 @@ PageTable* GetCurrentPageTable() {
return current_page_table;
}
+PageTable::PageTable() = default;
+
+PageTable::PageTable(std::size_t address_space_width_in_bits) {
+ Resize(address_space_width_in_bits);
+}
+
+PageTable::~PageTable() = default;
+
+void PageTable::Resize(std::size_t address_space_width_in_bits) {
+ const std::size_t num_page_table_entries = 1ULL << (address_space_width_in_bits - PAGE_BITS);
+
+ pointers.resize(num_page_table_entries);
+ attributes.resize(num_page_table_entries);
+}
+
static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, PageType type) {
LOG_DEBUG(HW_Memory, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * PAGE_SIZE,
(base + size) * PAGE_SIZE);
@@ -50,7 +64,7 @@ static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, Pa
VAddr end = base + size;
while (base != end) {
- ASSERT_MSG(base < PAGE_TABLE_NUM_ENTRIES, "out of range mapping at {:016X}", base);
+ ASSERT_MSG(base < page_table.pointers.size(), "out of range mapping at {:016X}", base);
page_table.attributes[base] = type;
page_table.pointers[base] = memory;
diff --git a/src/core/memory.h b/src/core/memory.h
index 2a27c0251..739e5be94 100644
--- a/src/core/memory.h
+++ b/src/core/memory.h
@@ -4,10 +4,10 @@
#pragma once
-#include <array>
#include <cstddef>
#include <string>
#include <tuple>
+#include <vector>
#include <boost/icl/interval_map.hpp>
#include "common/common_types.h"
#include "core/memory_hook.h"
@@ -23,10 +23,8 @@ namespace Memory {
* be mapped.
*/
constexpr std::size_t PAGE_BITS = 12;
-constexpr u64 PAGE_SIZE = 1 << PAGE_BITS;
+constexpr u64 PAGE_SIZE = 1ULL << PAGE_BITS;
constexpr u64 PAGE_MASK = PAGE_SIZE - 1;
-constexpr std::size_t ADDRESS_SPACE_BITS = 36;
-constexpr std::size_t PAGE_TABLE_NUM_ENTRIES = 1ULL << (ADDRESS_SPACE_BITS - PAGE_BITS);
enum class PageType : u8 {
/// Page is unmapped and should cause an access error.
@@ -62,23 +60,35 @@ struct SpecialRegion {
* mimics the way a real CPU page table works.
*/
struct PageTable {
+ explicit PageTable();
+ explicit PageTable(std::size_t address_space_width_in_bits);
+ ~PageTable();
+
+ /**
+ * Resizes the page table to be able to accomodate enough pages within
+ * a given address space.
+ *
+ * @param address_space_width_in_bits The address size width in bits.
+ */
+ void Resize(std::size_t address_space_width_in_bits);
+
/**
- * Array of memory pointers backing each page. An entry can only be non-null if the
- * corresponding entry in the `attributes` array is of type `Memory`.
+ * Vector of memory pointers backing each page. An entry can only be non-null if the
+ * corresponding entry in the `attributes` vector is of type `Memory`.
*/
- std::array<u8*, PAGE_TABLE_NUM_ENTRIES> pointers;
+ std::vector<u8*> pointers;
/**
- * Contains MMIO handlers that back memory regions whose entries in the `attribute` array is of
- * type `Special`.
+ * Contains MMIO handlers that back memory regions whose entries in the `attribute` vector is
+ * of type `Special`.
*/
boost::icl::interval_map<VAddr, std::set<SpecialRegion>> special_regions;
/**
- * Array of fine grained page attributes. If it is set to any value other than `Memory`, then
+ * Vector of fine grained page attributes. If it is set to any value other than `Memory`, then
* the corresponding entry in `pointers` MUST be set to null.
*/
- std::array<PageType, PAGE_TABLE_NUM_ENTRIES> attributes;
+ std::vector<PageType> attributes;
};
/// Virtual user-space memory regions
diff --git a/src/tests/core/arm/arm_test_common.cpp b/src/tests/core/arm/arm_test_common.cpp
index 7c69fc26e..c17a122cd 100644
--- a/src/tests/core/arm/arm_test_common.cpp
+++ b/src/tests/core/arm/arm_test_common.cpp
@@ -2,6 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
+#include <algorithm>
+
#include "core/core.h"
#include "core/hle/kernel/process.h"
#include "core/memory.h"
@@ -16,9 +18,10 @@ TestEnvironment::TestEnvironment(bool mutable_memory_)
Core::CurrentProcess() = Kernel::Process::Create(kernel, "");
page_table = &Core::CurrentProcess()->vm_manager.page_table;
- page_table->pointers.fill(nullptr);
+ std::fill(page_table->pointers.begin(), page_table->pointers.end(), nullptr);
page_table->special_regions.clear();
- page_table->attributes.fill(Memory::PageType::Unmapped);
+ std::fill(page_table->attributes.begin(), page_table->attributes.end(),
+ Memory::PageType::Unmapped);
Memory::MapIoRegion(*page_table, 0x00000000, 0x80000000, test_memory);
Memory::MapIoRegion(*page_table, 0x80000000, 0x80000000, test_memory);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 02:18:07 +0100