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-rw-r--r--src/core/hle/kernel/svc.cpp309
1 files changed, 286 insertions, 23 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index f9d99bc51..a9f7438ea 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -18,6 +18,7 @@
#include "core/core_timing.h"
#include "core/hle/kernel/k_client_port.h"
#include "core/hle/kernel/k_client_session.h"
+#include "core/hle/kernel/k_code_memory.h"
#include "core/hle/kernel/k_event.h"
#include "core/hle/kernel/k_handle_table.h"
#include "core/hle/kernel/k_memory_block.h"
@@ -31,6 +32,7 @@
#include "core/hle/kernel/k_shared_memory.h"
#include "core/hle/kernel/k_synchronization_object.h"
#include "core/hle/kernel/k_thread.h"
+#include "core/hle/kernel/k_thread_queue.h"
#include "core/hle/kernel/k_transfer_memory.h"
#include "core/hle/kernel/k_writable_event.h"
#include "core/hle/kernel/kernel.h"
@@ -307,26 +309,29 @@ static ResultCode ConnectToNamedPort32(Core::System& system, Handle* out_handle,
/// Makes a blocking IPC call to an OS service.
static ResultCode SendSyncRequest(Core::System& system, Handle handle) {
-
auto& kernel = system.Kernel();
+ // Create the wait queue.
+ KThreadQueue wait_queue(kernel);
+
+ // Get the client session from its handle.
+ KScopedAutoObject session =
+ kernel.CurrentProcess()->GetHandleTable().GetObject<KClientSession>(handle);
+ R_UNLESS(session.IsNotNull(), ResultInvalidHandle);
+
+ LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName());
+
auto thread = kernel.CurrentScheduler()->GetCurrentThread();
{
KScopedSchedulerLock lock(kernel);
- thread->SetState(ThreadState::Waiting);
- thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::IPC);
-
- {
- KScopedAutoObject session =
- kernel.CurrentProcess()->GetHandleTable().GetObject<KClientSession>(handle);
- R_UNLESS(session.IsNotNull(), ResultInvalidHandle);
- LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName());
- session->SendSyncRequest(thread, system.Memory(), system.CoreTiming());
- }
+
+ // This is a synchronous request, so we should wait for our request to complete.
+ GetCurrentThread(kernel).BeginWait(std::addressof(wait_queue));
+ GetCurrentThread(kernel).SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::IPC);
+ session->SendSyncRequest(&GetCurrentThread(kernel), system.Memory(), system.CoreTiming());
}
- KSynchronizationObject* dummy{};
- return thread->GetWaitResult(std::addressof(dummy));
+ return thread->GetWaitResult();
}
static ResultCode SendSyncRequest32(Core::System& system, Handle handle) {
@@ -873,7 +878,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, Handle
const u64 thread_ticks = current_thread->GetCpuTime();
out_ticks = thread_ticks + (core_timing.GetCPUTicks() - prev_ctx_ticks);
- } else if (same_thread && info_sub_id == system.CurrentCoreIndex()) {
+ } else if (same_thread && info_sub_id == system.Kernel().CurrentPhysicalCoreIndex()) {
out_ticks = core_timing.GetCPUTicks() - prev_ctx_ticks;
}
@@ -887,7 +892,8 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, Handle
return ResultInvalidHandle;
}
- if (info_sub_id != 0xFFFFFFFFFFFFFFFF && info_sub_id != system.CurrentCoreIndex()) {
+ if (info_sub_id != 0xFFFFFFFFFFFFFFFF &&
+ info_sub_id != system.Kernel().CurrentPhysicalCoreIndex()) {
LOG_ERROR(Kernel_SVC, "Core is not the current core, got {}", info_sub_id);
return ResultInvalidCombination;
}
@@ -1169,6 +1175,8 @@ static u32 GetCurrentProcessorNumber32(Core::System& system) {
return GetCurrentProcessorNumber(system);
}
+namespace {
+
constexpr bool IsValidSharedMemoryPermission(Svc::MemoryPermission perm) {
switch (perm) {
case Svc::MemoryPermission::Read:
@@ -1179,10 +1187,40 @@ constexpr bool IsValidSharedMemoryPermission(Svc::MemoryPermission perm) {
}
}
-constexpr bool IsValidRemoteSharedMemoryPermission(Svc::MemoryPermission perm) {
+[[maybe_unused]] 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;
+ }
+}
+
+constexpr bool IsValidMapCodeMemoryPermission(Svc::MemoryPermission perm) {
+ return perm == Svc::MemoryPermission::ReadWrite;
+}
+
+constexpr bool IsValidMapToOwnerCodeMemoryPermission(Svc::MemoryPermission perm) {
+ return perm == Svc::MemoryPermission::Read || perm == Svc::MemoryPermission::ReadExecute;
+}
+
+constexpr bool IsValidUnmapCodeMemoryPermission(Svc::MemoryPermission perm) {
+ return perm == Svc::MemoryPermission::None;
+}
+
+constexpr bool IsValidUnmapFromOwnerCodeMemoryPermission(Svc::MemoryPermission perm) {
+ return perm == Svc::MemoryPermission::None;
+}
+
+} // Anonymous namespace
+
static ResultCode MapSharedMemory(Core::System& system, Handle shmem_handle, VAddr address,
u64 size, Svc::MemoryPermission map_perm) {
LOG_TRACE(Kernel_SVC,
@@ -1262,6 +1300,223 @@ 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 MapProcessMemory(Core::System& system, VAddr dst_address, Handle process_handle,
+ VAddr src_address, u64 size) {
+ LOG_TRACE(Kernel_SVC,
+ "called, dst_address=0x{:X}, process_handle=0x{:X}, src_address=0x{:X}, size=0x{:X}",
+ dst_address, process_handle, src_address, size);
+
+ // Validate the address/size.
+ R_UNLESS(Common::IsAligned(dst_address, PageSize), ResultInvalidAddress);
+ R_UNLESS(Common::IsAligned(src_address, PageSize), ResultInvalidAddress);
+ R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize);
+ R_UNLESS(size > 0, ResultInvalidSize);
+ R_UNLESS((dst_address < dst_address + size), ResultInvalidCurrentMemory);
+ R_UNLESS((src_address < src_address + size), ResultInvalidCurrentMemory);
+
+ // Get the processes.
+ KProcess* dst_process = system.CurrentProcess();
+ KScopedAutoObject src_process =
+ dst_process->GetHandleTable().GetObjectWithoutPseudoHandle<KProcess>(process_handle);
+ R_UNLESS(src_process.IsNotNull(), ResultInvalidHandle);
+
+ // Get the page tables.
+ auto& dst_pt = dst_process->PageTable();
+ auto& src_pt = src_process->PageTable();
+
+ // Validate that the mapping is in range.
+ R_UNLESS(src_pt.Contains(src_address, size), ResultInvalidCurrentMemory);
+ R_UNLESS(dst_pt.CanContain(dst_address, size, KMemoryState::SharedCode),
+ ResultInvalidMemoryRegion);
+
+ // Create a new page group.
+ KMemoryInfo kBlockInfo = dst_pt.QueryInfo(dst_address);
+ KPageLinkedList pg(kBlockInfo.GetAddress(), kBlockInfo.GetNumPages());
+
+ // Map the group.
+ R_TRY(dst_pt.MapPages(dst_address, pg, KMemoryState::SharedCode,
+ KMemoryPermission::UserReadWrite));
+
+ return ResultSuccess;
+}
+
+static ResultCode UnmapProcessMemory(Core::System& system, VAddr dst_address, Handle process_handle,
+ VAddr src_address, u64 size) {
+ LOG_TRACE(Kernel_SVC,
+ "called, dst_address=0x{:X}, process_handle=0x{:X}, src_address=0x{:X}, size=0x{:X}",
+ dst_address, process_handle, src_address, size);
+
+ // Validate the address/size.
+ R_UNLESS(Common::IsAligned(dst_address, PageSize), ResultInvalidAddress);
+ R_UNLESS(Common::IsAligned(src_address, PageSize), ResultInvalidAddress);
+ R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize);
+ R_UNLESS(size > 0, ResultInvalidSize);
+ R_UNLESS((dst_address < dst_address + size), ResultInvalidCurrentMemory);
+ R_UNLESS((src_address < src_address + size), ResultInvalidCurrentMemory);
+
+ // Get the processes.
+ KProcess* dst_process = system.CurrentProcess();
+ KScopedAutoObject src_process =
+ dst_process->GetHandleTable().GetObjectWithoutPseudoHandle<KProcess>(process_handle);
+ R_UNLESS(src_process.IsNotNull(), ResultInvalidHandle);
+
+ // Get the page tables.
+ auto& dst_pt = dst_process->PageTable();
+ auto& src_pt = src_process->PageTable();
+
+ // Validate that the mapping is in range.
+ R_UNLESS(src_pt.Contains(src_address, size), ResultInvalidCurrentMemory);
+ R_UNLESS(dst_pt.CanContain(dst_address, size, KMemoryState::SharedCode),
+ ResultInvalidMemoryRegion);
+
+ // Unmap the memory.
+ R_TRY(dst_pt.UnmapProcessMemory(dst_address, size, src_pt, src_address));
+
+ return ResultSuccess;
+}
+
+static ResultCode CreateCodeMemory(Core::System& system, Handle* out, VAddr address, size_t size) {
+ LOG_TRACE(Kernel_SVC, "called, handle_out=0x{:X}, address=0x{:X}, size=0x{:X}",
+ static_cast<void*>(out), address, size);
+ // Get kernel instance.
+ auto& kernel = system.Kernel();
+
+ // Validate 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);
+
+ // Create the code memory.
+
+ KCodeMemory* code_mem = KCodeMemory::Create(kernel);
+ R_UNLESS(code_mem != nullptr, ResultOutOfResource);
+
+ // Verify that the region is in range.
+ R_UNLESS(system.CurrentProcess()->PageTable().Contains(address, size),
+ ResultInvalidCurrentMemory);
+
+ // Initialize the code memory.
+ R_TRY(code_mem->Initialize(system.DeviceMemory(), address, size));
+
+ // Register the code memory.
+ KCodeMemory::Register(kernel, code_mem);
+
+ // Add the code memory to the handle table.
+ R_TRY(system.CurrentProcess()->GetHandleTable().Add(out, code_mem));
+
+ code_mem->Close();
+
+ return ResultSuccess;
+}
+
+static ResultCode ControlCodeMemory(Core::System& system, Handle code_memory_handle, u32 operation,
+ VAddr address, size_t size, Svc::MemoryPermission perm) {
+
+ LOG_TRACE(Kernel_SVC,
+ "called, code_memory_handle=0x{:X}, operation=0x{:X}, address=0x{:X}, size=0x{:X}, "
+ "permission=0x{:X}",
+ code_memory_handle, operation, 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);
+
+ // Get the code memory from its handle.
+ KScopedAutoObject code_mem =
+ system.CurrentProcess()->GetHandleTable().GetObject<KCodeMemory>(code_memory_handle);
+ R_UNLESS(code_mem.IsNotNull(), ResultInvalidHandle);
+
+ // NOTE: Here, Atmosphere extends the SVC to allow code memory operations on one's own process.
+ // This enables homebrew usage of these SVCs for JIT.
+
+ // Perform the operation.
+ switch (static_cast<CodeMemoryOperation>(operation)) {
+ case CodeMemoryOperation::Map: {
+ // Check that the region is in range.
+ R_UNLESS(
+ system.CurrentProcess()->PageTable().CanContain(address, size, KMemoryState::CodeOut),
+ ResultInvalidMemoryRegion);
+
+ // Check the memory permission.
+ R_UNLESS(IsValidMapCodeMemoryPermission(perm), ResultInvalidNewMemoryPermission);
+
+ // Map the memory.
+ R_TRY(code_mem->Map(address, size));
+ } break;
+ case CodeMemoryOperation::Unmap: {
+ // Check that the region is in range.
+ R_UNLESS(
+ system.CurrentProcess()->PageTable().CanContain(address, size, KMemoryState::CodeOut),
+ ResultInvalidMemoryRegion);
+
+ // Check the memory permission.
+ R_UNLESS(IsValidUnmapCodeMemoryPermission(perm), ResultInvalidNewMemoryPermission);
+
+ // Unmap the memory.
+ R_TRY(code_mem->Unmap(address, size));
+ } break;
+ case CodeMemoryOperation::MapToOwner: {
+ // Check that the region is in range.
+ R_UNLESS(code_mem->GetOwner()->PageTable().CanContain(address, size,
+ KMemoryState::GeneratedCode),
+ ResultInvalidMemoryRegion);
+
+ // Check the memory permission.
+ R_UNLESS(IsValidMapToOwnerCodeMemoryPermission(perm), ResultInvalidNewMemoryPermission);
+
+ // Map the memory to its owner.
+ R_TRY(code_mem->MapToOwner(address, size, perm));
+ } break;
+ case CodeMemoryOperation::UnmapFromOwner: {
+ // Check that the region is in range.
+ R_UNLESS(code_mem->GetOwner()->PageTable().CanContain(address, size,
+ KMemoryState::GeneratedCode),
+ ResultInvalidMemoryRegion);
+
+ // Check the memory permission.
+ R_UNLESS(IsValidUnmapFromOwnerCodeMemoryPermission(perm), ResultInvalidNewMemoryPermission);
+
+ // Unmap the memory from its owner.
+ R_TRY(code_mem->UnmapFromOwner(address, size));
+ } break;
+ default:
+ return ResultInvalidEnumValue;
+ }
+
+ return ResultSuccess;
+}
+
static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_address,
VAddr page_info_address, Handle process_handle,
VAddr address) {
@@ -1459,10 +1714,14 @@ static void ExitProcess32(Core::System& system) {
ExitProcess(system);
}
-static constexpr bool IsValidVirtualCoreId(int32_t core_id) {
+namespace {
+
+constexpr bool IsValidVirtualCoreId(int32_t core_id) {
return (0 <= core_id && core_id < static_cast<int32_t>(Core::Hardware::NUM_CPU_CORES));
}
+} // Anonymous namespace
+
/// Creates a new thread
static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr entry_point, u64 arg,
VAddr stack_bottom, u32 priority, s32 core_id) {
@@ -1846,7 +2105,9 @@ static ResultCode ResetSignal32(Core::System& system, Handle handle) {
return ResetSignal(system, handle);
}
-static constexpr bool IsValidTransferMemoryPermission(MemoryPermission perm) {
+namespace {
+
+constexpr bool IsValidTransferMemoryPermission(MemoryPermission perm) {
switch (perm) {
case MemoryPermission::None:
case MemoryPermission::Read:
@@ -1857,6 +2118,8 @@ static constexpr bool IsValidTransferMemoryPermission(MemoryPermission perm) {
}
}
+} // Anonymous namespace
+
/// Creates a TransferMemory object
static ResultCode CreateTransferMemory(Core::System& system, Handle* out, VAddr address, u64 size,
MemoryPermission map_perm) {
@@ -2548,8 +2811,8 @@ static const FunctionDef SVC_Table_64[] = {
{0x48, nullptr, "MapPhysicalMemoryUnsafe"},
{0x49, nullptr, "UnmapPhysicalMemoryUnsafe"},
{0x4A, nullptr, "SetUnsafeLimit"},
- {0x4B, nullptr, "CreateCodeMemory"},
- {0x4C, nullptr, "ControlCodeMemory"},
+ {0x4B, SvcWrap64<CreateCodeMemory>, "CreateCodeMemory"},
+ {0x4C, SvcWrap64<ControlCodeMemory>, "ControlCodeMemory"},
{0x4D, nullptr, "SleepSystem"},
{0x4E, nullptr, "ReadWriteRegister"},
{0x4F, nullptr, "SetProcessActivity"},
@@ -2588,9 +2851,9 @@ static const FunctionDef SVC_Table_64[] = {
{0x70, nullptr, "CreatePort"},
{0x71, nullptr, "ManageNamedPort"},
{0x72, nullptr, "ConnectToPort"},
- {0x73, nullptr, "SetProcessMemoryPermission"},
- {0x74, nullptr, "MapProcessMemory"},
- {0x75, nullptr, "UnmapProcessMemory"},
+ {0x73, SvcWrap64<SetProcessMemoryPermission>, "SetProcessMemoryPermission"},
+ {0x74, SvcWrap64<MapProcessMemory>, "MapProcessMemory"},
+ {0x75, SvcWrap64<UnmapProcessMemory>, "UnmapProcessMemory"},
{0x76, SvcWrap64<QueryProcessMemory>, "QueryProcessMemory"},
{0x77, SvcWrap64<MapProcessCodeMemory>, "MapProcessCodeMemory"},
{0x78, SvcWrap64<UnmapProcessCodeMemory>, "UnmapProcessCodeMemory"},
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 11:50:16 +0200