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Merge pull request #1638 from FreddyFunk/SetMemoryPermission-Stubbed

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Implement SetMemoryPermission
This commit is contained in:
Mat M 2018-11-16 10:35:56 -05:00 committed by GitHub
commit 14cede1a0c
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2 changed files with 48 additions and 1 deletions
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44
src/core/hle/kernel/svc.cpp
View file

@ -123,6 +123,48 @@ static ResultCode SetHeapSize(VAddr* heap_addr, u64 heap_size) {
return RESULT_SUCCESS;
}
static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) {
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) {
LOG_WARNING(Kernel_SVC,
"(STUBBED) called, addr=0x{:X}, size=0x{:X}, state0=0x{:X}, state1=0x{:X}", addr,
@ -1297,7 +1339,7 @@ struct FunctionDef {
static const FunctionDef SVC_Table[] = {
{0x00, nullptr, "Unknown"},
{0x01, SvcWrap<SetHeapSize>, "SetHeapSize"},
{0x02, nullptr, "SetMemoryPermission"},
{0x02, SvcWrap<SetMemoryPermission>, "SetMemoryPermission"},
{0x03, SvcWrap<SetMemoryAttribute>, "SetMemoryAttribute"},
{0x04, SvcWrap<MapMemory>, "MapMemory"},
{0x05, SvcWrap<UnmapMemory>, "UnmapMemory"},

5
src/core/hle/kernel/svc_wrap.h
View file

@ -121,6 +121,11 @@ void SvcWrap() {
FuncReturn(func(Param(0), Param(1), Param(2)).raw);
}
template <ResultCode func(u64, u64, u32)>
void SvcWrap() {
FuncReturn(func(Param(0), Param(1), static_cast<u32>(Param(2))).raw);
}
template <ResultCode func(u32, u64, u64, u32)>
void SvcWrap() {
FuncReturn(