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Patches/PPU: Extend and improve patching capabilities (code allocations, jumps to any address) (#10779)

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* Patches/PPU: Implement dynamic code allocation + Any-Address jump patches

Also fix deallocation path of fixed allocation patches.
This commit is contained in:
Eladash 2021-09-01 13:38:17 +03:00 • committed by GitHub
parent ee6e4c493d
commit b40ed5bdb7
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 339 additions and 72 deletions
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17
rpcs3/Emu/Memory/vm.cpp
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@ -20,6 +20,8 @@
LOG_CHANNEL(vm_log, "VM");
void ppu_remove_hle_instructions(u32 addr, u32 size);
namespace vm
{
static u8* memory_reserve_4GiB(void* _addr, u64 size = 0x100000000)
@ -914,6 +916,9 @@ namespace vm
rsxthr.on_notify_memory_unmapped(addr, size);
}
// Deregister PPU related data
ppu_remove_hle_instructions(addr, size);
// Actually unmap memory
if (!shm)
{
@ -1160,8 +1165,8 @@ namespace vm
{
if (!src)
{
// Use the block's flags
flags = this->flags;
// Use the block's flags (excpet for protection)
flags = (this->flags & ~page_prot_mask) | (flags & page_prot_mask);
}
// Determine minimal alignment
@ -1182,7 +1187,7 @@ namespace vm
return 0;
}
u8 pflags = flags & page_hidden ? 0 : page_readable | page_writable;
u8 pflags = flags & page_hidden ? 0 : (~flags & (page_readable | page_writable));
if ((flags & page_size_64k) == page_size_64k)
{
@ -1237,8 +1242,8 @@ namespace vm
{
if (!src)
{
// Use the block's flags
flags = this->flags;
// Use the block's flags (excpet for protection)
flags = (this->flags & ~page_prot_mask) | (flags & page_prot_mask);
}
// Determine minimal alignment
@ -1266,7 +1271,7 @@ namespace vm
// Force aligned address
addr -= addr % min_page_size;
u8 pflags = flags & page_hidden ? 0 : page_readable | page_writable;
u8 pflags = flags & page_hidden ? 0 : (~flags & (page_readable | page_writable));
if ((flags & page_size_64k) == page_size_64k)
{