Merge pull request #1734 from lioncash/shared
kernel/shared_memory: Make data members private, plus minor interface changes
This commit is contained in:
commit
aa7e53ab5c
|
@ -61,7 +61,7 @@ SharedPtr<SharedMemory> SharedMemory::Create(KernelCore& kernel, SharedPtr<Proce
|
||||||
}
|
}
|
||||||
|
|
||||||
SharedPtr<SharedMemory> SharedMemory::CreateForApplet(
|
SharedPtr<SharedMemory> SharedMemory::CreateForApplet(
|
||||||
KernelCore& kernel, std::shared_ptr<std::vector<u8>> heap_block, u32 offset, u32 size,
|
KernelCore& kernel, std::shared_ptr<std::vector<u8>> heap_block, std::size_t offset, u64 size,
|
||||||
MemoryPermission permissions, MemoryPermission other_permissions, std::string name) {
|
MemoryPermission permissions, MemoryPermission other_permissions, std::string name) {
|
||||||
SharedPtr<SharedMemory> shared_memory(new SharedMemory(kernel));
|
SharedPtr<SharedMemory> shared_memory(new SharedMemory(kernel));
|
||||||
|
|
||||||
|
@ -78,10 +78,10 @@ SharedPtr<SharedMemory> SharedMemory::CreateForApplet(
|
||||||
return shared_memory;
|
return shared_memory;
|
||||||
}
|
}
|
||||||
|
|
||||||
ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermission permissions,
|
ResultCode SharedMemory::Map(Process& target_process, VAddr address, MemoryPermission permissions,
|
||||||
MemoryPermission other_permissions) {
|
MemoryPermission other_permissions) {
|
||||||
const MemoryPermission own_other_permissions =
|
const MemoryPermission own_other_permissions =
|
||||||
target_process == owner_process ? this->permissions : this->other_permissions;
|
&target_process == owner_process ? this->permissions : this->other_permissions;
|
||||||
|
|
||||||
// Automatically allocated memory blocks can only be mapped with other_permissions = DontCare
|
// Automatically allocated memory blocks can only be mapped with other_permissions = DontCare
|
||||||
if (base_address == 0 && other_permissions != MemoryPermission::DontCare) {
|
if (base_address == 0 && other_permissions != MemoryPermission::DontCare) {
|
||||||
|
@ -106,7 +106,7 @@ ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermi
|
||||||
VAddr target_address = address;
|
VAddr target_address = address;
|
||||||
|
|
||||||
// Map the memory block into the target process
|
// Map the memory block into the target process
|
||||||
auto result = target_process->VMManager().MapMemoryBlock(
|
auto result = target_process.VMManager().MapMemoryBlock(
|
||||||
target_address, backing_block, backing_block_offset, size, MemoryState::Shared);
|
target_address, backing_block, backing_block_offset, size, MemoryState::Shared);
|
||||||
if (result.Failed()) {
|
if (result.Failed()) {
|
||||||
LOG_ERROR(
|
LOG_ERROR(
|
||||||
|
@ -116,14 +116,14 @@ ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermi
|
||||||
return result.Code();
|
return result.Code();
|
||||||
}
|
}
|
||||||
|
|
||||||
return target_process->VMManager().ReprotectRange(target_address, size,
|
return target_process.VMManager().ReprotectRange(target_address, size,
|
||||||
ConvertPermissions(permissions));
|
ConvertPermissions(permissions));
|
||||||
}
|
}
|
||||||
|
|
||||||
ResultCode SharedMemory::Unmap(Process* target_process, VAddr address) {
|
ResultCode SharedMemory::Unmap(Process& target_process, VAddr address) {
|
||||||
// TODO(Subv): Verify what happens if the application tries to unmap an address that is not
|
// TODO(Subv): Verify what happens if the application tries to unmap an address that is not
|
||||||
// mapped to a SharedMemory.
|
// mapped to a SharedMemory.
|
||||||
return target_process->VMManager().UnmapRange(address, size);
|
return target_process.VMManager().UnmapRange(address, size);
|
||||||
}
|
}
|
||||||
|
|
||||||
VMAPermission SharedMemory::ConvertPermissions(MemoryPermission permission) {
|
VMAPermission SharedMemory::ConvertPermissions(MemoryPermission permission) {
|
||||||
|
@ -132,7 +132,11 @@ VMAPermission SharedMemory::ConvertPermissions(MemoryPermission permission) {
|
||||||
return static_cast<VMAPermission>(masked_permissions);
|
return static_cast<VMAPermission>(masked_permissions);
|
||||||
}
|
}
|
||||||
|
|
||||||
u8* SharedMemory::GetPointer(u32 offset) {
|
u8* SharedMemory::GetPointer(std::size_t offset) {
|
||||||
|
return backing_block->data() + backing_block_offset + offset;
|
||||||
|
}
|
||||||
|
|
||||||
|
const u8* SharedMemory::GetPointer(std::size_t offset) const {
|
||||||
return backing_block->data() + backing_block_offset + offset;
|
return backing_block->data() + backing_block_offset + offset;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -64,7 +64,7 @@ public:
|
||||||
*/
|
*/
|
||||||
static SharedPtr<SharedMemory> CreateForApplet(KernelCore& kernel,
|
static SharedPtr<SharedMemory> CreateForApplet(KernelCore& kernel,
|
||||||
std::shared_ptr<std::vector<u8>> heap_block,
|
std::shared_ptr<std::vector<u8>> heap_block,
|
||||||
u32 offset, u32 size,
|
std::size_t offset, u64 size,
|
||||||
MemoryPermission permissions,
|
MemoryPermission permissions,
|
||||||
MemoryPermission other_permissions,
|
MemoryPermission other_permissions,
|
||||||
std::string name = "Unknown Applet");
|
std::string name = "Unknown Applet");
|
||||||
|
@ -81,6 +81,11 @@ public:
|
||||||
return HANDLE_TYPE;
|
return HANDLE_TYPE;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/// Gets the size of the underlying memory block in bytes.
|
||||||
|
u64 GetSize() const {
|
||||||
|
return size;
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Converts the specified MemoryPermission into the equivalent VMAPermission.
|
* Converts the specified MemoryPermission into the equivalent VMAPermission.
|
||||||
* @param permission The MemoryPermission to convert.
|
* @param permission The MemoryPermission to convert.
|
||||||
|
@ -94,44 +99,51 @@ public:
|
||||||
* @param permissions Memory block map permissions (specified by SVC field)
|
* @param permissions Memory block map permissions (specified by SVC field)
|
||||||
* @param other_permissions Memory block map other permissions (specified by SVC field)
|
* @param other_permissions Memory block map other permissions (specified by SVC field)
|
||||||
*/
|
*/
|
||||||
ResultCode Map(Process* target_process, VAddr address, MemoryPermission permissions,
|
ResultCode Map(Process& target_process, VAddr address, MemoryPermission permissions,
|
||||||
MemoryPermission other_permissions);
|
MemoryPermission other_permissions);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Unmaps a shared memory block from the specified address in system memory
|
* Unmaps a shared memory block from the specified address in system memory
|
||||||
* @param target_process Process from which to umap the memory block.
|
* @param target_process Process from which to unmap the memory block.
|
||||||
* @param address Address in system memory where the shared memory block is mapped
|
* @param address Address in system memory where the shared memory block is mapped
|
||||||
* @return Result code of the unmap operation
|
* @return Result code of the unmap operation
|
||||||
*/
|
*/
|
||||||
ResultCode Unmap(Process* target_process, VAddr address);
|
ResultCode Unmap(Process& target_process, VAddr address);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Gets a pointer to the shared memory block
|
* Gets a pointer to the shared memory block
|
||||||
* @param offset Offset from the start of the shared memory block to get pointer
|
* @param offset Offset from the start of the shared memory block to get pointer
|
||||||
* @return Pointer to the shared memory block from the specified offset
|
* @return A pointer to the shared memory block from the specified offset
|
||||||
*/
|
*/
|
||||||
u8* GetPointer(u32 offset = 0);
|
u8* GetPointer(std::size_t offset = 0);
|
||||||
|
|
||||||
/// Process that created this shared memory block.
|
/**
|
||||||
SharedPtr<Process> owner_process;
|
* Gets a constant pointer to the shared memory block
|
||||||
/// Address of shared memory block in the owner process if specified.
|
* @param offset Offset from the start of the shared memory block to get pointer
|
||||||
VAddr base_address;
|
* @return A constant pointer to the shared memory block from the specified offset
|
||||||
/// Backing memory for this shared memory block.
|
*/
|
||||||
std::shared_ptr<std::vector<u8>> backing_block;
|
const u8* GetPointer(std::size_t offset = 0) const;
|
||||||
/// Offset into the backing block for this shared memory.
|
|
||||||
std::size_t backing_block_offset;
|
|
||||||
/// Size of the memory block. Page-aligned.
|
|
||||||
u64 size;
|
|
||||||
/// Permission restrictions applied to the process which created the block.
|
|
||||||
MemoryPermission permissions;
|
|
||||||
/// Permission restrictions applied to other processes mapping the block.
|
|
||||||
MemoryPermission other_permissions;
|
|
||||||
/// Name of shared memory object.
|
|
||||||
std::string name;
|
|
||||||
|
|
||||||
private:
|
private:
|
||||||
explicit SharedMemory(KernelCore& kernel);
|
explicit SharedMemory(KernelCore& kernel);
|
||||||
~SharedMemory() override;
|
~SharedMemory() override;
|
||||||
|
|
||||||
|
/// Backing memory for this shared memory block.
|
||||||
|
std::shared_ptr<std::vector<u8>> backing_block;
|
||||||
|
/// Offset into the backing block for this shared memory.
|
||||||
|
std::size_t backing_block_offset = 0;
|
||||||
|
/// Size of the memory block. Page-aligned.
|
||||||
|
u64 size = 0;
|
||||||
|
/// Permission restrictions applied to the process which created the block.
|
||||||
|
MemoryPermission permissions{};
|
||||||
|
/// Permission restrictions applied to other processes mapping the block.
|
||||||
|
MemoryPermission other_permissions{};
|
||||||
|
/// Process that created this shared memory block.
|
||||||
|
SharedPtr<Process> owner_process;
|
||||||
|
/// Address of shared memory block in the owner process if specified.
|
||||||
|
VAddr base_address = 0;
|
||||||
|
/// Name of shared memory object.
|
||||||
|
std::string name;
|
||||||
};
|
};
|
||||||
|
|
||||||
} // namespace Kernel
|
} // namespace Kernel
|
||||||
|
|
|
@ -789,7 +789,7 @@ static ResultCode MapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 s
|
||||||
return ERR_INVALID_MEMORY_RANGE;
|
return ERR_INVALID_MEMORY_RANGE;
|
||||||
}
|
}
|
||||||
|
|
||||||
return shared_memory->Map(current_process, addr, permissions_type, MemoryPermission::DontCare);
|
return shared_memory->Map(*current_process, addr, permissions_type, MemoryPermission::DontCare);
|
||||||
}
|
}
|
||||||
|
|
||||||
static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 size) {
|
static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 size) {
|
||||||
|
@ -819,7 +819,7 @@ static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64
|
||||||
return ERR_INVALID_MEMORY_RANGE;
|
return ERR_INVALID_MEMORY_RANGE;
|
||||||
}
|
}
|
||||||
|
|
||||||
return shared_memory->Unmap(current_process, addr);
|
return shared_memory->Unmap(*current_process, addr);
|
||||||
}
|
}
|
||||||
|
|
||||||
/// Query process memory
|
/// Query process memory
|
||||||
|
|
Loading…
Reference in New Issue