mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-23 12:51:13 +00:00
229 lines
14 KiB
C++
229 lines
14 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern::svc {
|
|
|
|
/* ============================= Common ============================= */
|
|
|
|
namespace {
|
|
|
|
constexpr inline u64 DeviceAddressSpaceAlignMask = (1ul << 22) - 1;
|
|
|
|
constexpr bool IsProcessAndDeviceAligned(uint64_t process_address, uint64_t device_address) {
|
|
return (process_address & DeviceAddressSpaceAlignMask) == (device_address & DeviceAddressSpaceAlignMask);
|
|
}
|
|
|
|
Result CreateDeviceAddressSpace(ams::svc::Handle *out, uint64_t das_address, uint64_t das_size) {
|
|
/* Validate input. */
|
|
R_UNLESS(util::IsAligned(das_address, PageSize), svc::ResultInvalidMemoryRegion());
|
|
R_UNLESS(util::IsAligned(das_size, PageSize), svc::ResultInvalidMemoryRegion());
|
|
R_UNLESS(das_size > 0, svc::ResultInvalidMemoryRegion());
|
|
R_UNLESS((das_address < das_address + das_size), svc::ResultInvalidMemoryRegion());
|
|
|
|
/* Create the device address space. */
|
|
KDeviceAddressSpace *das = KDeviceAddressSpace::Create();
|
|
R_UNLESS(das != nullptr, svc::ResultOutOfResource());
|
|
ON_SCOPE_EXIT { das->Close(); };
|
|
|
|
/* Initialize the device address space. */
|
|
R_TRY(das->Initialize(das_address, das_size));
|
|
|
|
/* Register the device address space. */
|
|
KDeviceAddressSpace::Register(das);
|
|
|
|
/* Add to the handle table. */
|
|
R_TRY(GetCurrentProcess().GetHandleTable().Add(out, das));
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result AttachDeviceAddressSpace(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
|
|
/* Get the device address space. */
|
|
KScopedAutoObject das = GetCurrentProcess().GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle);
|
|
R_UNLESS(das.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Attach. */
|
|
return das->Attach(device_name);
|
|
}
|
|
|
|
Result DetachDeviceAddressSpace(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
|
|
/* Get the device address space. */
|
|
KScopedAutoObject das = GetCurrentProcess().GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle);
|
|
R_UNLESS(das.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Detach. */
|
|
return das->Detach(device_name);
|
|
}
|
|
|
|
constexpr bool IsValidDeviceMemoryPermission(ams::svc::MemoryPermission device_perm) {
|
|
switch (device_perm) {
|
|
case ams::svc::MemoryPermission_Read:
|
|
case ams::svc::MemoryPermission_Write:
|
|
case ams::svc::MemoryPermission_ReadWrite:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Result MapDeviceAddressSpace(size_t *out_mapped_size, ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, size_t size, uint64_t device_address, ams::svc::MemoryPermission device_perm, bool refresh_mappings) {
|
|
/* Validate input. */
|
|
R_UNLESS(util::IsAligned(process_address, PageSize), svc::ResultInvalidAddress());
|
|
R_UNLESS(util::IsAligned(device_address, PageSize), svc::ResultInvalidAddress());
|
|
R_UNLESS(util::IsAligned(size, PageSize), svc::ResultInvalidSize());
|
|
R_UNLESS(size > 0, svc::ResultInvalidSize());
|
|
R_UNLESS((process_address < process_address + size), svc::ResultInvalidCurrentMemory());
|
|
R_UNLESS((device_address < device_address + size), svc::ResultInvalidMemoryRegion());
|
|
R_UNLESS((process_address == static_cast<uintptr_t>(process_address)), svc::ResultInvalidCurrentMemory());
|
|
R_UNLESS(IsValidDeviceMemoryPermission(device_perm), svc::ResultInvalidNewMemoryPermission());
|
|
|
|
/* Get the device address space. */
|
|
KScopedAutoObject das = GetCurrentProcess().GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle);
|
|
R_UNLESS(das.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Get the process. */
|
|
KScopedAutoObject process = GetCurrentProcess().GetHandleTable().GetObject<KProcess>(process_handle);
|
|
R_UNLESS(process.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Validate that the process address is within range. */
|
|
auto &page_table = process->GetPageTable();
|
|
R_UNLESS(page_table.Contains(process_address, size), svc::ResultInvalidCurrentMemory());
|
|
|
|
/* Map. */
|
|
return das->Map(out_mapped_size, std::addressof(page_table), KProcessAddress(process_address), size, device_address, device_perm, refresh_mappings);
|
|
}
|
|
|
|
Result MapDeviceAddressSpaceAligned(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, size_t size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
|
|
/* Validate input. */
|
|
R_UNLESS(util::IsAligned(process_address, PageSize), svc::ResultInvalidAddress());
|
|
R_UNLESS(util::IsAligned(device_address, PageSize), svc::ResultInvalidAddress());
|
|
R_UNLESS(IsProcessAndDeviceAligned(process_address, device_address), svc::ResultInvalidAddress());
|
|
R_UNLESS(util::IsAligned(size, PageSize), svc::ResultInvalidSize());
|
|
R_UNLESS(size > 0, svc::ResultInvalidSize());
|
|
R_UNLESS((process_address < process_address + size), svc::ResultInvalidCurrentMemory());
|
|
R_UNLESS((device_address < device_address + size), svc::ResultInvalidMemoryRegion());
|
|
R_UNLESS((process_address == static_cast<uintptr_t>(process_address)), svc::ResultInvalidCurrentMemory());
|
|
R_UNLESS(IsValidDeviceMemoryPermission(device_perm), svc::ResultInvalidNewMemoryPermission());
|
|
|
|
/* Get the device address space. */
|
|
KScopedAutoObject das = GetCurrentProcess().GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle);
|
|
R_UNLESS(das.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Get the process. */
|
|
KScopedAutoObject process = GetCurrentProcess().GetHandleTable().GetObject<KProcess>(process_handle);
|
|
R_UNLESS(process.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Validate that the process address is within range. */
|
|
auto &page_table = process->GetPageTable();
|
|
R_UNLESS(page_table.Contains(process_address, size), svc::ResultInvalidCurrentMemory());
|
|
|
|
/* Map. */
|
|
return das->MapAligned(std::addressof(page_table), KProcessAddress(process_address), size, device_address, device_perm);
|
|
}
|
|
|
|
Result UnmapDeviceAddressSpace(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, size_t size, uint64_t device_address) {
|
|
/* Validate input. */
|
|
R_UNLESS(util::IsAligned(process_address, PageSize), svc::ResultInvalidAddress());
|
|
R_UNLESS(util::IsAligned(device_address, PageSize), svc::ResultInvalidAddress());
|
|
R_UNLESS(util::IsAligned(size, PageSize), svc::ResultInvalidSize());
|
|
R_UNLESS(size > 0, svc::ResultInvalidSize());
|
|
R_UNLESS((process_address < process_address + size), svc::ResultInvalidCurrentMemory());
|
|
R_UNLESS((device_address < device_address + size), svc::ResultInvalidMemoryRegion());
|
|
R_UNLESS((process_address == static_cast<uintptr_t>(process_address)), svc::ResultInvalidCurrentMemory());
|
|
|
|
/* Get the device address space. */
|
|
KScopedAutoObject das = GetCurrentProcess().GetHandleTable().GetObject<KDeviceAddressSpace>(das_handle);
|
|
R_UNLESS(das.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Get the process. */
|
|
KScopedAutoObject process = GetCurrentProcess().GetHandleTable().GetObject<KProcess>(process_handle);
|
|
R_UNLESS(process.IsNotNull(), svc::ResultInvalidHandle());
|
|
|
|
/* Validate that the process address is within range. */
|
|
auto &page_table = process->GetPageTable();
|
|
R_UNLESS(page_table.Contains(process_address, size), svc::ResultInvalidCurrentMemory());
|
|
|
|
return das->Unmap(std::addressof(page_table), KProcessAddress(process_address), size, device_address);
|
|
}
|
|
|
|
}
|
|
|
|
/* ============================= 64 ABI ============================= */
|
|
|
|
Result CreateDeviceAddressSpace64(ams::svc::Handle *out_handle, uint64_t das_address, uint64_t das_size) {
|
|
return CreateDeviceAddressSpace(out_handle, das_address, das_size);
|
|
}
|
|
|
|
Result AttachDeviceAddressSpace64(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
|
|
return AttachDeviceAddressSpace(device_name, das_handle);
|
|
}
|
|
|
|
Result DetachDeviceAddressSpace64(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
|
|
return DetachDeviceAddressSpace(device_name, das_handle);
|
|
}
|
|
|
|
Result MapDeviceAddressSpaceByForce64(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
|
|
size_t dummy_map_size;
|
|
return MapDeviceAddressSpace(std::addressof(dummy_map_size), das_handle, process_handle, process_address, size, device_address, device_perm, false);
|
|
}
|
|
|
|
Result MapDeviceAddressSpaceAligned64(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
|
|
return MapDeviceAddressSpaceAligned(das_handle, process_handle, process_address, size, device_address, device_perm);
|
|
}
|
|
|
|
Result MapDeviceAddressSpace64(ams::svc::Size *out_mapped_size, ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
|
|
static_assert(sizeof(*out_mapped_size) == sizeof(size_t));
|
|
return MapDeviceAddressSpace(reinterpret_cast<size_t *>(out_mapped_size), das_handle, process_handle, process_address, size, device_address, device_perm, true);
|
|
}
|
|
|
|
Result UnmapDeviceAddressSpace64(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address) {
|
|
return UnmapDeviceAddressSpace(das_handle, process_handle, process_address, size, device_address);
|
|
}
|
|
|
|
/* ============================= 64From32 ABI ============================= */
|
|
|
|
Result CreateDeviceAddressSpace64From32(ams::svc::Handle *out_handle, uint64_t das_address, uint64_t das_size) {
|
|
return CreateDeviceAddressSpace(out_handle, das_address, das_size);
|
|
}
|
|
|
|
Result AttachDeviceAddressSpace64From32(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
|
|
return AttachDeviceAddressSpace(device_name, das_handle);
|
|
}
|
|
|
|
Result DetachDeviceAddressSpace64From32(ams::svc::DeviceName device_name, ams::svc::Handle das_handle) {
|
|
return DetachDeviceAddressSpace(device_name, das_handle);
|
|
}
|
|
|
|
Result MapDeviceAddressSpaceByForce64From32(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
|
|
size_t dummy_map_size;
|
|
return MapDeviceAddressSpace(std::addressof(dummy_map_size), das_handle, process_handle, process_address, size, device_address, device_perm, false);
|
|
}
|
|
|
|
Result MapDeviceAddressSpaceAligned64From32(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
|
|
return MapDeviceAddressSpaceAligned(das_handle, process_handle, process_address, size, device_address, device_perm);
|
|
}
|
|
|
|
Result MapDeviceAddressSpace64From32(ams::svc::Size *out_mapped_size, ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address, ams::svc::MemoryPermission device_perm) {
|
|
static_assert(sizeof(*out_mapped_size) == sizeof(size_t));
|
|
return MapDeviceAddressSpace(reinterpret_cast<size_t *>(out_mapped_size), das_handle, process_handle, process_address, size, device_address, device_perm, true);
|
|
}
|
|
|
|
Result UnmapDeviceAddressSpace64From32(ams::svc::Handle das_handle, ams::svc::Handle process_handle, uint64_t process_address, ams::svc::Size size, uint64_t device_address) {
|
|
return UnmapDeviceAddressSpace(das_handle, process_handle, process_address, size, device_address);
|
|
}
|
|
|
|
}
|