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Kernel: Zero-fill shared memory blocks when mapping
This works around crashes related to GSP/HID/etc. shared memory blocks having garbage values. The proper fix requires proper management of mapped memory blocks in the process.
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@ -2,6 +2,8 @@
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// Licensed under GPLv2 or any later version
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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// Refer to the license.txt file included.
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#include <cstring>
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#include "common/logging/log.h"
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#include "common/logging/log.h"
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#include "core/mem_map.h"
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#include "core/mem_map.h"
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@ -38,6 +40,12 @@ ResultCode SharedMemory::Map(VAddr address, MemoryPermission permissions,
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// TODO: Test permissions
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// TODO: Test permissions
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// HACK: Since there's no way to write to the memory block without mapping it onto the game
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// process yet, at least initialize memory the first time it's mapped.
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if (address != this->base_address) {
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std::memset(Memory::GetPointer(address), 0, size);
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}
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this->base_address = address;
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this->base_address = address;
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return RESULT_SUCCESS;
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return RESULT_SUCCESS;
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