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memory_manager: Add protections for invalid GPU addresses.

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- Avoid a crash in Xenoblade Chronicles 2.
This commit is contained in:
bunnei
2019-03-09 14:06:51 -05:00
parent 21eb4cfa7f
commit 197dcf0b5e
2 changed files with 45 additions and 24 deletions
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15
src/video_core/memory_manager.h
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@ -46,19 +46,19 @@ public:
MemoryManager();
GPUVAddr AllocateSpace(u64 size, u64 align);
GPUVAddr AllocateSpace(GPUVAddr gpu_addr, u64 size, u64 align);
GPUVAddr AllocateSpace(GPUVAddr addr, u64 size, u64 align);
GPUVAddr MapBufferEx(GPUVAddr cpu_addr, u64 size);
GPUVAddr MapBufferEx(GPUVAddr cpu_addr, GPUVAddr gpu_addr, u64 size);
GPUVAddr UnmapBuffer(GPUVAddr gpu_addr, u64 size);
std::optional<VAddr> GpuToCpuAddress(GPUVAddr gpu_addr);
GPUVAddr MapBufferEx(GPUVAddr cpu_addr, GPUVAddr addr, u64 size);
GPUVAddr UnmapBuffer(GPUVAddr addr, u64 size);
std::optional<VAddr> GpuToCpuAddress(GPUVAddr addr);
template <typename T>
T Read(GPUVAddr vaddr);
T Read(GPUVAddr addr);
template <typename T>
void Write(GPUVAddr vaddr, T data);
void Write(GPUVAddr addr, T data);
u8* GetPointer(GPUVAddr vaddr);
u8* GetPointer(GPUVAddr addr);
void ReadBlock(GPUVAddr src_addr, void* dest_buffer, std::size_t size);
void WriteBlock(GPUVAddr dest_addr, const void* src_buffer, std::size_t size);
@ -69,6 +69,7 @@ private:
using VMAHandle = VMAMap::const_iterator;
using VMAIter = VMAMap::iterator;
bool IsAddressValid(GPUVAddr addr) const;
void MapPages(GPUVAddr base, u64 size, u8* memory, Common::PageType type,
VAddr backing_addr = 0);
void MapMemoryRegion(GPUVAddr base, u64 size, u8* target, VAddr backing_addr);