kernel: svc: Implement SetProcessMemoryPermission
- Used by Skyline modding framework
This commit is contained in:
parent
281437c811
commit
2726d705f8
|
@ -1183,6 +1183,18 @@ constexpr bool IsValidRemoteSharedMemoryPermission(Svc::MemoryPermission perm) {
|
|||
return IsValidSharedMemoryPermission(perm) || perm == Svc::MemoryPermission::DontCare;
|
||||
}
|
||||
|
||||
constexpr bool IsValidProcessMemoryPermission(Svc::MemoryPermission perm) {
|
||||
switch (perm) {
|
||||
case Svc::MemoryPermission::None:
|
||||
case Svc::MemoryPermission::Read:
|
||||
case Svc::MemoryPermission::ReadWrite:
|
||||
case Svc::MemoryPermission::ReadExecute:
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
static ResultCode MapSharedMemory(Core::System& system, Handle shmem_handle, VAddr address,
|
||||
u64 size, Svc::MemoryPermission map_perm) {
|
||||
LOG_TRACE(Kernel_SVC,
|
||||
|
@ -1262,6 +1274,34 @@ static ResultCode UnmapSharedMemory32(Core::System& system, Handle shmem_handle,
|
|||
return UnmapSharedMemory(system, shmem_handle, address, size);
|
||||
}
|
||||
|
||||
static ResultCode SetProcessMemoryPermission(Core::System& system, Handle process_handle,
|
||||
VAddr address, u64 size, Svc::MemoryPermission perm) {
|
||||
LOG_TRACE(Kernel_SVC,
|
||||
"called, process_handle=0x{:X}, addr=0x{:X}, size=0x{:X}, permissions=0x{:08X}",
|
||||
process_handle, address, size, perm);
|
||||
|
||||
// Validate the address/size.
|
||||
R_UNLESS(Common::IsAligned(address, PageSize), ResultInvalidAddress);
|
||||
R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize);
|
||||
R_UNLESS(size > 0, ResultInvalidSize);
|
||||
R_UNLESS((address < address + size), ResultInvalidCurrentMemory);
|
||||
|
||||
// Validate the memory permission.
|
||||
R_UNLESS(IsValidProcessMemoryPermission(perm), ResultInvalidNewMemoryPermission);
|
||||
|
||||
// Get the process from its handle.
|
||||
KScopedAutoObject process =
|
||||
system.CurrentProcess()->GetHandleTable().GetObject<KProcess>(process_handle);
|
||||
R_UNLESS(process.IsNotNull(), ResultInvalidHandle);
|
||||
|
||||
// Validate that the address is in range.
|
||||
auto& page_table = process->PageTable();
|
||||
R_UNLESS(page_table.Contains(address, size), ResultInvalidCurrentMemory);
|
||||
|
||||
// Set the memory permission.
|
||||
return page_table.SetProcessMemoryPermission(address, size, ConvertToKMemoryPermission(perm));
|
||||
}
|
||||
|
||||
static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_address,
|
||||
VAddr page_info_address, Handle process_handle,
|
||||
VAddr address) {
|
||||
|
@ -2588,7 +2628,7 @@ static const FunctionDef SVC_Table_64[] = {
|
|||
{0x70, nullptr, "CreatePort"},
|
||||
{0x71, nullptr, "ManageNamedPort"},
|
||||
{0x72, nullptr, "ConnectToPort"},
|
||||
{0x73, nullptr, "SetProcessMemoryPermission"},
|
||||
{0x73, SvcWrap64<SetProcessMemoryPermission>, "SetProcessMemoryPermission"},
|
||||
{0x74, nullptr, "MapProcessMemory"},
|
||||
{0x75, nullptr, "UnmapProcessMemory"},
|
||||
{0x76, SvcWrap64<QueryProcessMemory>, "QueryProcessMemory"},
|
||||
|
|
Reference in New Issue