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kernel: workaround static shared memory initialization

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This commit is contained in:
Liam 2022-12-23 13:40:30 -05:00
parent 1b11e0f0d3
commit 99eccf581e
3 changed files with 62 additions and 58 deletions
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69
src/core/hle/kernel/k_shared_memory.cpp
View file

@ -6,6 +6,7 @@
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
#include "core/hle/kernel/k_shared_memory.h"
#include "core/hle/kernel/k_system_resource.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/svc_results.h"
@ -18,19 +19,19 @@ KSharedMemory::~KSharedMemory() {
}
Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* owner_process_,
KPageGroup&& page_list_, Svc::MemoryPermission owner_permission_,
Svc::MemoryPermission user_permission_, PAddr physical_address_,
std::size_t size_, std::string name_) {
Svc::MemoryPermission owner_permission_,
Svc::MemoryPermission user_permission_, std::size_t size_,
std::string name_) {
// Set members.
owner_process = owner_process_;
device_memory = &device_memory_;
page_list = std::move(page_list_);
owner_permission = owner_permission_;
user_permission = user_permission_;
physical_address = physical_address_;
size = size_;
size = Common::AlignUp(size_, PageSize);
name = std::move(name_);
const size_t num_pages = Common::DivideUp(size, PageSize);
// Get the resource limit.
KResourceLimit* reslimit = kernel.GetSystemResourceLimit();
@ -39,6 +40,17 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
size_);
R_UNLESS(memory_reservation.Succeeded(), ResultLimitReached);
// Allocate the memory.
//! HACK: Open continuous mapping from sysmodule pool.
auto option = KMemoryManager::EncodeOption(KMemoryManager::Pool::Secure,
KMemoryManager::Direction::FromBack);
physical_address = kernel.MemoryManager().AllocateAndOpenContinuous(num_pages, 1, option);
R_UNLESS(physical_address != 0, ResultOutOfMemory);
//! Insert the result into our page group.
page_group.emplace(physical_address, num_pages);
// Commit our reservation.
memory_reservation.Commit();
@ -50,12 +62,23 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
is_initialized = true;
// Clear all pages in the memory.
std::memset(device_memory_.GetPointer<void>(physical_address_), 0, size_);
for (const auto& block : page_group->Nodes()) {
std::memset(device_memory_.GetPointer<void>(block.GetAddress()), 0, block.GetSize());
}
return ResultSuccess;
}
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());
}
// Release the memory reservation.
resource_limit->Release(LimitableResource::PhysicalMemoryMax, size);
resource_limit->Close();
@ -65,32 +88,28 @@ void KSharedMemory::Finalize() {
}
Result KSharedMemory::Map(KProcess& target_process, VAddr address, std::size_t map_size,
Svc::MemoryPermission permissions) {
const u64 page_count{(map_size + PageSize - 1) / PageSize};
Svc::MemoryPermission map_perm) {
// Validate the size.
R_UNLESS(size == map_size, ResultInvalidSize);
if (page_list.GetNumPages() != page_count) {
UNIMPLEMENTED_MSG("Page count does not match");
}
const Svc::MemoryPermission expected =
// Validate the permission.
const Svc::MemoryPermission test_perm =
&target_process == owner_process ? owner_permission : user_permission;
if (permissions != expected) {
UNIMPLEMENTED_MSG("Permission does not match");
if (test_perm == Svc::MemoryPermission::DontCare) {
ASSERT(map_perm == Svc::MemoryPermission::Read || map_perm == Svc::MemoryPermission::Write);
} else {
R_UNLESS(map_perm == test_perm, ResultInvalidNewMemoryPermission);
}
return target_process.PageTable().MapPages(address, page_list, KMemoryState::Shared,
ConvertToKMemoryPermission(permissions));
return target_process.PageTable().MapPages(address, *page_group, KMemoryState::Shared,
ConvertToKMemoryPermission(map_perm));
}
Result KSharedMemory::Unmap(KProcess& target_process, VAddr address, std::size_t unmap_size) {
const u64 page_count{(unmap_size + PageSize - 1) / PageSize};
// Validate the size.
R_UNLESS(size == unmap_size, ResultInvalidSize);
if (page_list.GetNumPages() != page_count) {
UNIMPLEMENTED_MSG("Page count does not match");
}
return target_process.PageTable().UnmapPages(address, page_list, KMemoryState::Shared);
return target_process.PageTable().UnmapPages(address, *page_group, KMemoryState::Shared);
}
} // namespace Kernel

8
src/core/hle/kernel/k_shared_memory.h
View file

@ -3,6 +3,7 @@
#pragma once
#include <optional>
#include <string>
#include "common/common_types.h"
@ -26,9 +27,8 @@ public:
~KSharedMemory() override;
Result Initialize(Core::DeviceMemory& device_memory_, KProcess* owner_process_,
KPageGroup&& page_list_, Svc::MemoryPermission owner_permission_,
Svc::MemoryPermission user_permission_, PAddr physical_address_,
std::size_t size_, std::string name_);
Svc::MemoryPermission owner_permission_,
Svc::MemoryPermission user_permission_, std::size_t size_, std::string name_);
/**
* Maps a shared memory block to an address in the target process' address space
@ -76,7 +76,7 @@ public:
private:
Core::DeviceMemory* device_memory{};
KProcess* owner_process{};
KPageGroup page_list;
std::optional<KPageGroup> page_group{};
Svc::MemoryPermission owner_permission{};
Svc::MemoryPermission user_permission{};
PAddr physical_address{};

43
src/core/hle/kernel/kernel.cpp
View file

@ -94,6 +94,7 @@ struct KernelCore::Impl {
pt_heap_region.GetSize());
}
InitializeHackSharedMemory();
RegisterHostThread(nullptr);
default_service_thread = &CreateServiceThread(kernel, "DefaultServiceThread");
@ -726,14 +727,14 @@ struct KernelCore::Impl {
}
void InitializeMemoryLayout() {
const auto system_pool = memory_layout->GetKernelSystemPoolRegionPhysicalExtents();
// Initialize the memory manager.
memory_manager = std::make_unique<KMemoryManager>(system);
const auto& management_region = memory_layout->GetPoolManagementRegion();
ASSERT(management_region.GetEndAddress() != 0);
memory_manager->Initialize(management_region.GetAddress(), management_region.GetSize());
}
void InitializeHackSharedMemory() {
// Setup memory regions for emulated processes
// TODO(bunnei): These should not be hardcoded regions initialized within the kernel
constexpr std::size_t hid_size{0x40000};
@ -742,39 +743,23 @@ struct KernelCore::Impl {
constexpr std::size_t time_size{0x1000};
constexpr std::size_t hidbus_size{0x1000};
const PAddr hid_phys_addr{system_pool.GetAddress()};
const PAddr font_phys_addr{system_pool.GetAddress() + hid_size};
const PAddr irs_phys_addr{system_pool.GetAddress() + hid_size + font_size};
const PAddr time_phys_addr{system_pool.GetAddress() + hid_size + font_size + irs_size};
const PAddr hidbus_phys_addr{system_pool.GetAddress() + hid_size + font_size + irs_size +
time_size};
hid_shared_mem = KSharedMemory::Create(system.Kernel());
font_shared_mem = KSharedMemory::Create(system.Kernel());
irs_shared_mem = KSharedMemory::Create(system.Kernel());
time_shared_mem = KSharedMemory::Create(system.Kernel());
hidbus_shared_mem = KSharedMemory::Create(system.Kernel());
hid_shared_mem->Initialize(system.DeviceMemory(), nullptr,
{hid_phys_addr, hid_size / PageSize},
Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
hid_phys_addr, hid_size, "HID:SharedMemory");
font_shared_mem->Initialize(system.DeviceMemory(), nullptr,
{font_phys_addr, font_size / PageSize},
Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
font_phys_addr, font_size, "Font:SharedMemory");
irs_shared_mem->Initialize(system.DeviceMemory(), nullptr,
{irs_phys_addr, irs_size / PageSize},
Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
irs_phys_addr, irs_size, "IRS:SharedMemory");
time_shared_mem->Initialize(system.DeviceMemory(), nullptr,
{time_phys_addr, time_size / PageSize},
Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
time_phys_addr, time_size, "Time:SharedMemory");
hidbus_shared_mem->Initialize(system.DeviceMemory(), nullptr,
{hidbus_phys_addr, hidbus_size / PageSize},
Svc::MemoryPermission::None, Svc::MemoryPermission::Read,
hidbus_phys_addr, hidbus_size, "HidBus:SharedMemory");
hid_shared_mem->Initialize(system.DeviceMemory(), nullptr, Svc::MemoryPermission::None,
Svc::MemoryPermission::Read, hid_size, "HID:SharedMemory");
font_shared_mem->Initialize(system.DeviceMemory(), nullptr, Svc::MemoryPermission::None,
Svc::MemoryPermission::Read, font_size, "Font:SharedMemory");
irs_shared_mem->Initialize(system.DeviceMemory(), nullptr, Svc::MemoryPermission::None,
Svc::MemoryPermission::Read, irs_size, "IRS:SharedMemory");
time_shared_mem->Initialize(system.DeviceMemory(), nullptr, Svc::MemoryPermission::None,
Svc::MemoryPermission::Read, time_size, "Time:SharedMemory");
hidbus_shared_mem->Initialize(system.DeviceMemory(), nullptr, Svc::MemoryPermission::None,
Svc::MemoryPermission::Read, hidbus_size,
"HidBus:SharedMemory");
}
KClientPort* CreateNamedServicePort(std::string name) {