tstarr/yuzu
1
0
Fork 0
mirror of https://github.com/starr-dusT/yuzu-mainline synced 2024-03-05 21:12:25 -08:00
Code Issues Packages Projects Releases Wiki Activity

Implement SetMemoryPermission

Browse Source
This commit is contained in:
Frederic Laing 2018-11-06 10:21:01 +01:00
parent ab7472345b
commit ba2cdcdc5a
1 changed files with 39 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
src/core/hle/kernel/svc.cpp
View File

@ -123,9 +123,45 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
}
static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) {
LOG_WARNING(Kernel_SVC, "(STUBBED) called, addr=0x{:X}, size=0x{:X}, prot=0x{:X}", addr, size,
prot);
return RESULT_SUCCESS;
LOG_TRACE(Kernel_SVC, "called, addr=0x{:X}, size=0x{:X}, prot=0x{:X}", addr, size, prot);
if (!Common::Is4KBAligned(addr)) {
return ERR_INVALID_ADDRESS;
}
if (size == 0 || !Common::Is4KBAligned(size)) {
return ERR_INVALID_SIZE;
}
if (!IsValidAddressRange(addr, size)) {
return ERR_INVALID_ADDRESS_STATE;
}
const auto permission = static_cast<MemoryPermission>(prot);
if (permission != MemoryPermission::None && permission != MemoryPermission::Read &&
permission != MemoryPermission::ReadWrite) {
return ERR_INVALID_MEMORY_PERMISSIONS;
}
auto* const current_process = Core::CurrentProcess();
auto& vm_manager = current_process->VMManager();
if (!IsInsideAddressSpace(vm_manager, addr, size)) {
return ERR_INVALID_ADDRESS_STATE;
}
const VMManager::VMAHandle iter = vm_manager.FindVMA(addr);
if (iter == vm_manager.vma_map.end()) {
return ERR_INVALID_ADDRESS_STATE;
}
LOG_WARNING(Kernel_SVC, "Uniformity check on protected memory is not implemented.");
// TODO: Performs a uniformity check to make sure only protected memory is changed (it doesn't
// make sense to allow changing permissions on kernel memory itself, etc).
const auto converted_permissions = SharedMemory::ConvertPermissions(permission);
return vm_manager.ReprotectRange(addr, size, converted_permissions);
}
static ResultCode SetMemoryAttribute(VAddr addr, u64 size, u32 state0, u32 state1) {