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HLE/Applets: Give each applet its own block of heap memory, and use that when creating the framebuffer shared memory block.

This commit is contained in:
Subv 2016-05-08 17:10:53 -05:00
parent d261984f54
commit ac2de12ed8
5 changed files with 44 additions and 5 deletions

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@ -65,6 +65,7 @@ protected:
virtual ResultCode StartImpl(const Service::APT::AppletStartupParameter& parameter) = 0;
Service::APT::AppletId id; ///< Id of this Applet
std::shared_ptr<std::vector<u8>> heap_memory; ///< Heap memory for this Applet
};
/// Returns whether a library applet is currently running

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@ -35,9 +35,14 @@ ResultCode MiiSelector::ReceiveParameter(const Service::APT::MessageParameter& p
ASSERT(sizeof(capture_info) == parameter.buffer_size);
memcpy(&capture_info, parameter.data, sizeof(capture_info));
using Kernel::MemoryPermission;
framebuffer_memory = Kernel::SharedMemory::Create(nullptr, capture_info.size, MemoryPermission::ReadWrite,
MemoryPermission::ReadWrite, 0, Kernel::MemoryRegion::BASE, "MiiSelector Memory");
// Allocate a heap block of the required size for this applet.
heap_memory = std::make_shared<std::vector<u8>>(capture_info.size);
// Create a SharedMemory that directly points to this heap block.
framebuffer_memory = Kernel::SharedMemory::CreateForApplet(heap_memory, 0, heap_memory->size(),
MemoryPermission::ReadWrite, MemoryPermission::ReadWrite,
"MiiSelector Memory");
// Send the response message with the newly created SharedMemory
Service::APT::MessageParameter result;

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@ -40,8 +40,12 @@ ResultCode SoftwareKeyboard::ReceiveParameter(Service::APT::MessageParameter con
memcpy(&capture_info, parameter.data, sizeof(capture_info));
using Kernel::MemoryPermission;
framebuffer_memory = Kernel::SharedMemory::Create(nullptr, capture_info.size, MemoryPermission::ReadWrite,
MemoryPermission::ReadWrite, 0, Kernel::MemoryRegion::BASE, "SoftwareKeyboard Memory");
// Allocate a heap block of the required size for this applet.
heap_memory = std::make_shared<std::vector<u8>>(capture_info.size);
// Create a SharedMemory that directly points to this heap block.
framebuffer_memory = Kernel::SharedMemory::CreateForApplet(heap_memory, 0, heap_memory->size(),
MemoryPermission::ReadWrite, MemoryPermission::ReadWrite,
"SoftwareKeyboard Memory");
// Send the response message with the newly created SharedMemory
Service::APT::MessageParameter result;

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@ -58,6 +58,7 @@ SharedPtr<SharedMemory> SharedMemory::Create(SharedPtr<Process> owner_process, u
// Copy it over to our own storage
shared_memory->backing_block = std::make_shared<std::vector<u8>>(vma.backing_block->data() + vma.offset,
vma.backing_block->data() + vma.offset + size);
shared_memory->backing_block_offset = 0;
// Unmap the existing pages
vm_manager.UnmapRange(address, size);
// Map our own block into the address space
@ -70,6 +71,22 @@ SharedPtr<SharedMemory> SharedMemory::Create(SharedPtr<Process> owner_process, u
return shared_memory;
}
SharedPtr<SharedMemory> SharedMemory::CreateForApplet(std::shared_ptr<std::vector<u8>> heap_block, u32 offset, u32 size,
MemoryPermission permissions, MemoryPermission other_permissions, std::string name) {
SharedPtr<SharedMemory> shared_memory(new SharedMemory);
shared_memory->owner_process = nullptr;
shared_memory->name = std::move(name);
shared_memory->size = size;
shared_memory->permissions = permissions;
shared_memory->other_permissions = other_permissions;
shared_memory->backing_block = heap_block;
shared_memory->backing_block_offset = offset;
shared_memory->base_address = Memory::HEAP_VADDR + offset;
return shared_memory;
}
ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermission permissions,
MemoryPermission other_permissions) {

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@ -30,7 +30,7 @@ enum class MemoryPermission : u32 {
class SharedMemory final : public Object {
public:
/**
* Creates a shared memory object
* Creates a shared memory object.
* @param owner_process Process that created this shared memory object.
* @param size Size of the memory block. Must be page-aligned.
* @param permissions Permission restrictions applied to the process which created the block.
@ -42,6 +42,18 @@ public:
static SharedPtr<SharedMemory> Create(SharedPtr<Process> owner_process, u32 size, MemoryPermission permissions,
MemoryPermission other_permissions, VAddr address = 0, MemoryRegion region = MemoryRegion::BASE, std::string name = "Unknown");
/**
* Creates a shared memory object from a block of memory managed by an HLE applet.
* @param heap_block Heap block of the HLE applet.
* @param offset The offset into the heap block that the SharedMemory will map.
* @param size Size of the memory block. Must be page-aligned.
* @param permissions Permission restrictions applied to the process which created the block.
* @param other_permissions Permission restrictions applied to other processes mapping the block.
* @param name Optional object name, used for debugging purposes.
*/
static SharedPtr<SharedMemory> CreateForApplet(std::shared_ptr<std::vector<u8>> heap_block, u32 offset, u32 size,
MemoryPermission permissions, MemoryPermission other_permissions, std::string name = "Unknown Applet");
std::string GetTypeName() const override { return "SharedMemory"; }
std::string GetName() const override { return name; }