Mirrors/shadPS4
1
0
Fork 0
mirror of https://github.com/shadps4-emu/shadPS4.git synced 2025-06-14 14:43:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Only align when flags Fixed is not present (#2945)

Browse source 
Should fix some remaining memory issues.
This commit is contained in:
Stephen Miller 2025-05-16 16:21:13 -05:00 • committed by GitHub
parent ffd31589cf
commit a0acb47185
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 5 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/core/memory.cpp
View file

@ -362,11 +362,8 @@ int MemoryManager::MapMemory(void** out_addr, VAddr virtual_addr, size_t size, M
return ORBIS_KERNEL_ERROR_ENOMEM; return ORBIS_KERNEL_ERROR_ENOMEM;
} }
// When virtual addr is zero, force it to virtual_base. The guest cannot pass Fixed // Limit the minumum address to SystemManagedVirtualBase to prevent hardware-specific issues.
// flag so we will take the branch that searches for free (or reserved) mappings. VAddr mapped_addr = (virtual_addr == 0) ? impl.SystemManagedVirtualBase() : virtual_addr;
virtual_addr = (virtual_addr == 0) ? impl.SystemManagedVirtualBase() : virtual_addr;
alignment = alignment > 0 ? alignment : 16_KB;
VAddr mapped_addr = alignment > 0 ? Common::AlignUp(virtual_addr, alignment) : virtual_addr;
// Fixed mapping means the virtual address must exactly match the provided one. // Fixed mapping means the virtual address must exactly match the provided one.
if (True(flags & MemoryMapFlags::Fixed)) { if (True(flags & MemoryMapFlags::Fixed)) {
@ -396,7 +393,9 @@ int MemoryManager::MapMemory(void** out_addr, VAddr virtual_addr, size_t size, M
// Find the first free area starting with provided virtual address. // Find the first free area starting with provided virtual address.
if (False(flags & MemoryMapFlags::Fixed)) { if (False(flags & MemoryMapFlags::Fixed)) {
mapped_addr = SearchFree(mapped_addr, size, alignment); // Provided address needs to be aligned before we can map.
alignment = alignment > 0 ? alignment : 16_KB;
mapped_addr = SearchFree(Common::AlignUp(mapped_addr, alignment), size, alignment);
if (mapped_addr == -1) { if (mapped_addr == -1) {
// No suitable memory areas to map to // No suitable memory areas to map to
return ORBIS_KERNEL_ERROR_ENOMEM; return ORBIS_KERNEL_ERROR_ENOMEM;