diff options
Diffstat (limited to 'src/core/hle/kernel/svc/svc_device_address_space.cpp')
-rw-r--r-- | src/core/hle/kernel/svc/svc_device_address_space.cpp | 249 |
1 files changed, 248 insertions, 1 deletions
diff --git a/src/core/hle/kernel/svc/svc_device_address_space.cpp b/src/core/hle/kernel/svc/svc_device_address_space.cpp index 299e22ae6..cdc453c35 100644 --- a/src/core/hle/kernel/svc/svc_device_address_space.cpp +++ b/src/core/hle/kernel/svc/svc_device_address_space.cpp @@ -1,6 +1,253 @@ // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project // SPDX-License-Identifier: GPL-2.0-or-later +#include "common/alignment.h" +#include "common/scope_exit.h" +#include "core/core.h" +#include "core/hle/kernel/k_device_address_space.h" +#include "core/hle/kernel/k_process.h" #include "core/hle/kernel/svc.h" -namespace Kernel::Svc {} // namespace Kernel::Svc +namespace Kernel::Svc { + +constexpr inline u64 DeviceAddressSpaceAlignMask = (1ULL << 22) - 1; + +constexpr bool IsProcessAndDeviceAligned(uint64_t process_address, uint64_t device_address) { + return (process_address & DeviceAddressSpaceAlignMask) == + (device_address & DeviceAddressSpaceAlignMask); +} + +Result CreateDeviceAddressSpace(Core::System& system, Handle* out, uint64_t das_address, + uint64_t das_size) { + // Validate input. + R_UNLESS(Common::IsAligned(das_address, PageSize), ResultInvalidMemoryRegion); + R_UNLESS(Common::IsAligned(das_size, PageSize), ResultInvalidMemoryRegion); + R_UNLESS(das_size > 0, ResultInvalidMemoryRegion); + R_UNLESS((das_address < das_address + das_size), ResultInvalidMemoryRegion); + + // Create the device address space. + KDeviceAddressSpace* das = KDeviceAddressSpace::Create(system.Kernel()); + R_UNLESS(das != nullptr, ResultOutOfResource); + SCOPE_EXIT({ das->Close(); }); + + // Initialize the device address space. + R_TRY(das->Initialize(das_address, das_size)); + + // Register the device address space. + KDeviceAddressSpace::Register(system.Kernel(), das); + + // Add to the handle table. + R_TRY(system.CurrentProcess()->GetHandleTable().Add(out, das)); + + R_SUCCEED(); +} + +Result AttachDeviceAddressSpace(Core::System& system, DeviceName device_name, Handle das_handle) { + // Get the device address space. + KScopedAutoObject das = + system.CurrentProcess()->GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle); + R_UNLESS(das.IsNotNull(), ResultInvalidHandle); + + // Attach. + R_RETURN(das->Attach(device_name)); +} + +Result DetachDeviceAddressSpace(Core::System& system, DeviceName device_name, Handle das_handle) { + // Get the device address space. + KScopedAutoObject das = + system.CurrentProcess()->GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle); + R_UNLESS(das.IsNotNull(), ResultInvalidHandle); + + // Detach. + R_RETURN(das->Detach(device_name)); +} + +constexpr bool IsValidDeviceMemoryPermission(MemoryPermission device_perm) { + switch (device_perm) { + case MemoryPermission::Read: + case MemoryPermission::Write: + case MemoryPermission::ReadWrite: + return true; + default: + return false; + } +} + +Result MapDeviceAddressSpaceByForce(Core::System& system, Handle das_handle, Handle process_handle, + uint64_t process_address, size_t size, uint64_t device_address, + u32 option) { + // Decode the option. + const MapDeviceAddressSpaceOption option_pack{option}; + const auto device_perm = option_pack.permission; + const auto reserved = option_pack.reserved; + + // Validate input. + R_UNLESS(Common::IsAligned(process_address, PageSize), ResultInvalidAddress); + R_UNLESS(Common::IsAligned(device_address, PageSize), ResultInvalidAddress); + R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize); + R_UNLESS(size > 0, ResultInvalidSize); + R_UNLESS((process_address < process_address + size), ResultInvalidCurrentMemory); + R_UNLESS((device_address < device_address + size), ResultInvalidMemoryRegion); + R_UNLESS((process_address == static_cast<uintptr_t>(process_address)), + ResultInvalidCurrentMemory); + R_UNLESS(IsValidDeviceMemoryPermission(device_perm), ResultInvalidNewMemoryPermission); + R_UNLESS(reserved == 0, ResultInvalidEnumValue); + + // Get the device address space. + KScopedAutoObject das = + system.CurrentProcess()->GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle); + R_UNLESS(das.IsNotNull(), ResultInvalidHandle); + + // Get the process. + KScopedAutoObject process = + system.CurrentProcess()->GetHandleTable().GetObject<KProcess>(process_handle); + R_UNLESS(process.IsNotNull(), ResultInvalidHandle); + + // Validate that the process address is within range. + auto& page_table = process->PageTable(); + R_UNLESS(page_table.Contains(process_address, size), ResultInvalidCurrentMemory); + + // Map. + R_RETURN( + das->MapByForce(std::addressof(page_table), process_address, size, device_address, option)); +} + +Result MapDeviceAddressSpaceAligned(Core::System& system, Handle das_handle, Handle process_handle, + uint64_t process_address, size_t size, uint64_t device_address, + u32 option) { + // Decode the option. + const MapDeviceAddressSpaceOption option_pack{option}; + const auto device_perm = option_pack.permission; + const auto reserved = option_pack.reserved; + + // Validate input. + R_UNLESS(Common::IsAligned(process_address, PageSize), ResultInvalidAddress); + R_UNLESS(Common::IsAligned(device_address, PageSize), ResultInvalidAddress); + R_UNLESS(IsProcessAndDeviceAligned(process_address, device_address), ResultInvalidAddress); + R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize); + R_UNLESS(size > 0, ResultInvalidSize); + R_UNLESS((process_address < process_address + size), ResultInvalidCurrentMemory); + R_UNLESS((device_address < device_address + size), ResultInvalidMemoryRegion); + R_UNLESS((process_address == static_cast<uintptr_t>(process_address)), + ResultInvalidCurrentMemory); + R_UNLESS(IsValidDeviceMemoryPermission(device_perm), ResultInvalidNewMemoryPermission); + R_UNLESS(reserved == 0, ResultInvalidEnumValue); + + // Get the device address space. + KScopedAutoObject das = + system.CurrentProcess()->GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle); + R_UNLESS(das.IsNotNull(), ResultInvalidHandle); + + // Get the process. + KScopedAutoObject process = + system.CurrentProcess()->GetHandleTable().GetObject<KProcess>(process_handle); + R_UNLESS(process.IsNotNull(), ResultInvalidHandle); + + // Validate that the process address is within range. + auto& page_table = process->PageTable(); + R_UNLESS(page_table.Contains(process_address, size), ResultInvalidCurrentMemory); + + // Map. + R_RETURN( + das->MapAligned(std::addressof(page_table), process_address, size, device_address, option)); +} + +Result UnmapDeviceAddressSpace(Core::System& system, Handle das_handle, Handle process_handle, + uint64_t process_address, size_t size, uint64_t device_address) { + // Validate input. + R_UNLESS(Common::IsAligned(process_address, PageSize), ResultInvalidAddress); + R_UNLESS(Common::IsAligned(device_address, PageSize), ResultInvalidAddress); + R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize); + R_UNLESS(size > 0, ResultInvalidSize); + R_UNLESS((process_address < process_address + size), ResultInvalidCurrentMemory); + R_UNLESS((device_address < device_address + size), ResultInvalidMemoryRegion); + R_UNLESS((process_address == static_cast<uintptr_t>(process_address)), + ResultInvalidCurrentMemory); + + // Get the device address space. + KScopedAutoObject das = + system.CurrentProcess()->GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle); + R_UNLESS(das.IsNotNull(), ResultInvalidHandle); + + // Get the process. + KScopedAutoObject process = + system.CurrentProcess()->GetHandleTable().GetObject<KProcess>(process_handle); + R_UNLESS(process.IsNotNull(), ResultInvalidHandle); + + // Validate that the process address is within range. + auto& page_table = process->PageTable(); + R_UNLESS(page_table.Contains(process_address, size), ResultInvalidCurrentMemory); + + R_RETURN(das->Unmap(std::addressof(page_table), process_address, size, device_address)); +} + +Result CreateDeviceAddressSpace64(Core::System& system, Handle* out_handle, uint64_t das_address, + uint64_t das_size) { + R_RETURN(CreateDeviceAddressSpace(system, out_handle, das_address, das_size)); +} + +Result AttachDeviceAddressSpace64(Core::System& system, DeviceName device_name, Handle das_handle) { + R_RETURN(AttachDeviceAddressSpace(system, device_name, das_handle)); +} + +Result DetachDeviceAddressSpace64(Core::System& system, DeviceName device_name, Handle das_handle) { + R_RETURN(DetachDeviceAddressSpace(system, device_name, das_handle)); +} + +Result MapDeviceAddressSpaceByForce64(Core::System& system, Handle das_handle, + Handle process_handle, uint64_t process_address, + uint64_t size, uint64_t device_address, u32 option) { + R_RETURN(MapDeviceAddressSpaceByForce(system, das_handle, process_handle, process_address, size, + device_address, option)); +} + +Result MapDeviceAddressSpaceAligned64(Core::System& system, Handle das_handle, + Handle process_handle, uint64_t process_address, + uint64_t size, uint64_t device_address, u32 option) { + R_RETURN(MapDeviceAddressSpaceAligned(system, das_handle, process_handle, process_address, size, + device_address, option)); +} + +Result UnmapDeviceAddressSpace64(Core::System& system, Handle das_handle, Handle process_handle, + uint64_t process_address, uint64_t size, uint64_t device_address) { + R_RETURN(UnmapDeviceAddressSpace(system, das_handle, process_handle, process_address, size, + device_address)); +} + +Result CreateDeviceAddressSpace64From32(Core::System& system, Handle* out_handle, + uint64_t das_address, uint64_t das_size) { + R_RETURN(CreateDeviceAddressSpace(system, out_handle, das_address, das_size)); +} + +Result AttachDeviceAddressSpace64From32(Core::System& system, DeviceName device_name, + Handle das_handle) { + R_RETURN(AttachDeviceAddressSpace(system, device_name, das_handle)); +} + +Result DetachDeviceAddressSpace64From32(Core::System& system, DeviceName device_name, + Handle das_handle) { + R_RETURN(DetachDeviceAddressSpace(system, device_name, das_handle)); +} + +Result MapDeviceAddressSpaceByForce64From32(Core::System& system, Handle das_handle, + Handle process_handle, uint64_t process_address, + uint32_t size, uint64_t device_address, u32 option) { + R_RETURN(MapDeviceAddressSpaceByForce(system, das_handle, process_handle, process_address, size, + device_address, option)); +} + +Result MapDeviceAddressSpaceAligned64From32(Core::System& system, Handle das_handle, + Handle process_handle, uint64_t process_address, + uint32_t size, uint64_t device_address, u32 option) { + R_RETURN(MapDeviceAddressSpaceAligned(system, das_handle, process_handle, process_address, size, + device_address, option)); +} + +Result UnmapDeviceAddressSpace64From32(Core::System& system, Handle das_handle, + Handle process_handle, uint64_t process_address, + uint32_t size, uint64_t device_address) { + R_RETURN(UnmapDeviceAddressSpace(system, das_handle, process_handle, process_address, size, + device_address)); +} + +} // namespace Kernel::Svc |