diff options
Diffstat (limited to 'src/core/hle/kernel')
| -rw-r--r-- | src/core/hle/kernel/shared_memory.cpp | 27 | ||||
| -rw-r--r-- | src/core/hle/kernel/shared_memory.h | 2 |
2 files changed, 27 insertions, 2 deletions
diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp index 4137683b5..1f477664b 100644 --- a/src/core/hle/kernel/shared_memory.cpp +++ b/src/core/hle/kernel/shared_memory.cpp @@ -20,6 +20,7 @@ SharedPtr<SharedMemory> SharedMemory::Create(u32 size, MemoryPermission permissi shared_memory->name = std::move(name); shared_memory->base_address = 0x0; + shared_memory->fixed_address = 0x0; shared_memory->size = size; shared_memory->permissions = permissions; shared_memory->other_permissions = other_permissions; @@ -30,9 +31,31 @@ SharedPtr<SharedMemory> SharedMemory::Create(u32 size, MemoryPermission permissi ResultCode SharedMemory::Map(VAddr address, MemoryPermission permissions, MemoryPermission other_permissions) { + if (base_address != 0) { + LOG_ERROR(Kernel, "cannot map id=%u, address=0x%08X name=%s: already mapped at 0x%08X!", + GetObjectId(), address, name.c_str(), base_address); + // TODO: Verify error code with hardware + return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel, + ErrorSummary::InvalidArgument, ErrorLevel::Permanent); + } + + if (fixed_address != 0) { + if (address != 0 && address != fixed_address) { + LOG_ERROR(Kernel, "cannot map id=%u, address=0x%08X name=%s: fixed_addres is 0x%08X!", + GetObjectId(), address, name.c_str(), fixed_address); + // TODO: Verify error code with hardware + return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel, + ErrorSummary::InvalidArgument, ErrorLevel::Permanent); + } + + // HACK(yuriks): This is only here to support the APT shared font mapping right now. + // Later, this should actually map the memory block onto the address space. + return RESULT_SUCCESS; + } + if (address < Memory::SHARED_MEMORY_VADDR || address + size >= Memory::SHARED_MEMORY_VADDR_END) { - LOG_ERROR(Kernel, "cannot map id=%u, address=0x%08X outside of shared mem bounds!", - GetObjectId(), address); + LOG_ERROR(Kernel, "cannot map id=%u, address=0x%08X name=%s outside of shared mem bounds!", + GetObjectId(), address, name.c_str()); // TODO: Verify error code with hardware return ResultCode(ErrorDescription::InvalidAddress, ErrorModule::Kernel, ErrorSummary::InvalidArgument, ErrorLevel::Permanent); diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h index 7a2922776..35b550d12 100644 --- a/src/core/hle/kernel/shared_memory.h +++ b/src/core/hle/kernel/shared_memory.h @@ -61,6 +61,8 @@ public: /// Address of shared memory block in the process. VAddr base_address; + /// Fixed address to allow mapping to. Used for blocks created from the linear heap. + VAddr fixed_address; /// Size of the memory block. Page-aligned. u32 size; /// Permission restrictions applied to the process which created the block. |