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-rw-r--r--src/core/hle/kernel/svc.cpp140
1 files changed, 138 insertions, 2 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 4134acf65..17c7e9433 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -1229,6 +1229,142 @@ static ResultCode QueryMemory32(Core::System& system, u32 memory_info_address,
return QueryMemory(system, memory_info_address, page_info_address, query_address);
}
+static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst_address,
+ u64 src_address, u64 size) {
+ LOG_DEBUG(Kernel_SVC,
+ "called. process_handle=0x{:08X}, dst_address=0x{:016X}, "
+ "src_address=0x{:016X}, size=0x{:016X}",
+ process_handle, dst_address, src_address, size);
+
+ if (!Common::Is4KBAligned(src_address)) {
+ LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
+ src_address);
+ return ERR_INVALID_ADDRESS;
+ }
+
+ if (!Common::Is4KBAligned(dst_address)) {
+ LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
+ dst_address);
+ return ERR_INVALID_ADDRESS;
+ }
+
+ if (size == 0 || !Common::Is4KBAligned(size)) {
+ LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X})", size);
+ return ERR_INVALID_SIZE;
+ }
+
+ if (!IsValidAddressRange(dst_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Destination address range overflows the address space (dst_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ dst_address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if (!IsValidAddressRange(src_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Source address range overflows the address space (src_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ src_address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
+ auto process = handle_table.Get<Process>(process_handle);
+ if (!process) {
+ LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
+ process_handle);
+ return ERR_INVALID_HANDLE;
+ }
+
+ auto& page_table = process->PageTable();
+ if (!page_table.IsInsideAddressSpace(src_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Source address range is not within the address space (src_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ src_address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if (!page_table.IsInsideASLRRegion(dst_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ dst_address, size);
+ return ERR_INVALID_MEMORY_RANGE;
+ }
+
+ return page_table.MapProcessCodeMemory(dst_address, src_address, size);
+}
+
+static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_handle,
+ u64 dst_address, u64 src_address, u64 size) {
+ LOG_DEBUG(Kernel_SVC,
+ "called. process_handle=0x{:08X}, dst_address=0x{:016X}, src_address=0x{:016X}, "
+ "size=0x{:016X}",
+ process_handle, dst_address, src_address, size);
+
+ if (!Common::Is4KBAligned(dst_address)) {
+ LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).",
+ dst_address);
+ return ERR_INVALID_ADDRESS;
+ }
+
+ if (!Common::Is4KBAligned(src_address)) {
+ LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).",
+ src_address);
+ return ERR_INVALID_ADDRESS;
+ }
+
+ if (size == 0 || Common::Is4KBAligned(size)) {
+ LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X}).", size);
+ return ERR_INVALID_SIZE;
+ }
+
+ if (!IsValidAddressRange(dst_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Destination address range overflows the address space (dst_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ dst_address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if (!IsValidAddressRange(src_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Source address range overflows the address space (src_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ src_address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
+ auto process = handle_table.Get<Process>(process_handle);
+ if (!process) {
+ LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).",
+ process_handle);
+ return ERR_INVALID_HANDLE;
+ }
+
+ auto& page_table = process->PageTable();
+ if (!page_table.IsInsideAddressSpace(src_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Source address range is not within the address space (src_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ src_address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if (!page_table.IsInsideASLRRegion(dst_address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Destination address range is not within the ASLR region (dst_address=0x{:016X}, "
+ "size=0x{:016X}).",
+ dst_address, size);
+ return ERR_INVALID_MEMORY_RANGE;
+ }
+
+ return page_table.UnmapProcessCodeMemory(dst_address, src_address, size);
+}
+
/// Exits the current process
static void ExitProcess(Core::System& system) {
auto* current_process = system.Kernel().CurrentProcess();
@@ -2256,8 +2392,8 @@ static const FunctionDef SVC_Table_64[] = {
{0x74, nullptr, "MapProcessMemory"},
{0x75, nullptr, "UnmapProcessMemory"},
{0x76, SvcWrap64<QueryProcessMemory>, "QueryProcessMemory"},
- {0x77, nullptr, "MapProcessCodeMemory"},
- {0x78, nullptr, "UnmapProcessCodeMemory"},
+ {0x77, SvcWrap64<MapProcessCodeMemory>, "MapProcessCodeMemory"},
+ {0x78, SvcWrap64<UnmapProcessCodeMemory>, "UnmapProcessCodeMemory"},
{0x79, nullptr, "CreateProcess"},
{0x7A, nullptr, "StartProcess"},
{0x7B, nullptr, "TerminateProcess"},