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Return error codes to guest from map/unmap memory instead crash

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This commit is contained in:
mailwl 2025-01-16 15:51:54 +03:00
parent 1c3048ccc2
commit 988f66d326
1 changed files with 9 additions and 3 deletions
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12
src/core/memory.cpp
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@ -290,7 +290,12 @@ int MemoryManager::MapMemory(void** out_addr, VAddr virtual_addr, size_t size, M
// This should return SCE_KERNEL_ERROR_ENOMEM but shouldn't normally happen.
const auto& vma = FindVMA(mapped_addr)->second;
const size_t remaining_size = vma.base + vma.size - mapped_addr;
ASSERT_MSG(!vma.IsMapped() && remaining_size >= size);
if (vma.IsMapped()) {
return ORBIS_KERNEL_ERROR_EBUSY;
}
if (remaining_size < size) {
return ORBIS_KERNEL_ERROR_ENOMEM;
}
}
// Find the first free area starting with provided virtual address.
@ -392,8 +397,9 @@ s32 MemoryManager::UnmapMemory(VAddr virtual_addr, size_t size) {
s32 MemoryManager::UnmapMemoryImpl(VAddr virtual_addr, size_t size) {
const auto it = FindVMA(virtual_addr);
const auto& vma_base = it->second;
ASSERT_MSG(vma_base.Contains(virtual_addr, size),
"Existing mapping does not contain requested unmap range");
if (!vma_base.Contains(virtual_addr, size)) {
return ORBIS_KERNEL_ERROR_EINVAL;
}
const auto type = vma_base.type;
if (type == VMAType::Free) {