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Match changes to svcMapProcessMemoryEx from latest Luma3DS (#264)

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PabloMK7 2024-09-27 23:00:28 +00:00 • committed by GitHub
parent f3fb038587
commit 608383ec84
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4 changed files with 45 additions and 11 deletions
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11
src/core/file_sys/plugin_3gx.cpp
View file

@ -179,6 +179,8 @@ Loader::ResultStatus FileSys::Plugin3GXLoader::Map(
4 * 1024 * 1024 // 4 MiB
};
const bool is_mem_private = header.infos.flags.use_private_memory != 0;
// Map memory block. This behaviour mimics how plugins are loaded on 3DS as much as possible.
// Calculate the sizes of the different memory regions
const u32 block_size = mem_region_sizes[header.infos.flags.memory_region_size.Value()];
@ -199,7 +201,8 @@ Loader::ResultStatus FileSys::Plugin3GXLoader::Map(
std::fill(backing_memory_fb.GetPtr(), backing_memory_fb.GetPtr() + _3GX_fb_size, 0);
auto vma_heap_fb = process.vm_manager.MapBackingMemory(
_3GX_heap_load_addr, backing_memory_fb, _3GX_fb_size, Kernel::MemoryState::Continuous);
_3GX_heap_load_addr, backing_memory_fb, _3GX_fb_size,
is_mem_private ? Kernel::MemoryState::Private : Kernel::MemoryState::Shared);
ASSERT(vma_heap_fb.Succeeded());
process.vm_manager.Reprotect(vma_heap_fb.Unwrap(), Kernel::VMAPermission::ReadWrite);
@ -217,7 +220,8 @@ Loader::ResultStatus FileSys::Plugin3GXLoader::Map(
// Then we map part of the memory, which contains the executable
auto vma = process.vm_manager.MapBackingMemory(_3GX_exe_load_addr, backing_memory, exe_size,
Kernel::MemoryState::Continuous);
is_mem_private ? Kernel::MemoryState::Private
: Kernel::MemoryState::Shared);
ASSERT(vma.Succeeded());
process.vm_manager.Reprotect(vma.Unwrap(), Kernel::VMAPermission::ReadWriteExecute);
@ -256,7 +260,8 @@ Loader::ResultStatus FileSys::Plugin3GXLoader::Map(
// Map the rest of the memory at the heap location
auto vma_heap = process.vm_manager.MapBackingMemory(
_3GX_heap_load_addr + _3GX_fb_size, backing_memory_heap,
block_size - exe_size - _3GX_fb_size, Kernel::MemoryState::Continuous);
block_size - exe_size - _3GX_fb_size,
is_mem_private ? Kernel::MemoryState::Private : Kernel::MemoryState::Shared);
ASSERT(vma_heap.Succeeded());
process.vm_manager.Reprotect(vma_heap.Unwrap(), Kernel::VMAPermission::ReadWriteExecute);

3
src/core/file_sys/plugin_3gx.h
View file

@ -94,6 +94,9 @@ private:
BitField<1, 1, u32_le> embedded_swap_func;
BitField<2, 2, u32_le> memory_region_size;
BitField<4, 2, u32_le> compatibility;
BitField<6, 1, u32_le> events_self_managed;
BitField<7, 1, u32_le> swap_not_needed;
BitField<8, 1, u32_le> use_private_memory;
} flags;
u32_le exe_load_checksum;
u32_le builtin_load_exe_args[4];

40
src/core/hle/kernel/svc.cpp
View file

@ -369,6 +369,16 @@ enum class ControlProcessOP {
PROCESSOP_DISABLE_CREATE_THREAD_RESTRICTIONS,
};
/**
* Accepted by the custom svcMapProcessMemoryEx.
*/
enum class MapMemoryExFlag {
/**
* Maps the memory region as PRIVATE instead of SHARED
*/
MAPEXFLAGS_PRIVATE = (1 << 0),
};
class SVC : public SVCWrapper<SVC> {
public:
SVC(Core::System& system);
@ -460,7 +470,8 @@ private:
Result InvalidateEntireInstructionCache();
u32 ConvertVaToPa(u32 addr);
Result MapProcessMemoryEx(Handle dst_process_handle, u32 dst_address, Handle src_process_handle,
u32 src_address, u32 size);
u32 src_address, u32 size, MapMemoryExFlag flags,
Handle dst_process_handle_backup);
Result UnmapProcessMemoryEx(Handle process, u32 dst_address, u32 size);
Result ControlProcess(Handle process_handle, u32 process_OP, u32 varg2, u32 varg3);
@ -2012,7 +2023,22 @@ u32 SVC::ConvertVaToPa(u32 addr) {
}
Result SVC::MapProcessMemoryEx(Handle dst_process_handle, u32 dst_address,
Handle src_process_handle, u32 src_address, u32 size) {
Handle src_process_handle, u32 src_address, u32 size,
MapMemoryExFlag flags, Handle dst_process_handle_backup) {
// Determine if this is the second version of the svc by checking the value at R0.
constexpr u32 SVC_VERSION2_MAGIC = 0xFFFFFFF2;
if (static_cast<u32>(dst_process_handle) == SVC_VERSION2_MAGIC) {
// Version 2, actual handle is provided in 6th argument
dst_process_handle = dst_process_handle_backup;
} else {
// Version 1, the flags argument is not used
flags = static_cast<MapMemoryExFlag>(0);
}
const bool map_as_private =
(static_cast<u32>(flags) & static_cast<u32>(MapMemoryExFlag::MAPEXFLAGS_PRIVATE)) != 0;
std::shared_ptr<Process> dst_process =
kernel.GetCurrentProcess()->handle_table.Get<Process>(dst_process_handle);
std::shared_ptr<Process> src_process =
@ -2024,11 +2050,12 @@ Result SVC::MapProcessMemoryEx(Handle dst_process_handle, u32 dst_address,
size = (size & ~0xFFF) + Memory::CITRA_PAGE_SIZE;
}
// TODO(PabloMK7) Fix-up this svc.
// Only linear memory supported
auto vma = src_process->vm_manager.FindVMA(src_address);
R_UNLESS(vma != src_process->vm_manager.vma_map.end() &&
vma->second.type == VMAType::BackingMemory &&
vma->second.meminfo_state == MemoryState::Continuous,
vma->second.type == VMAType::BackingMemory,
ResultInvalidAddress);
const u32 offset = src_address - vma->second.base;
@ -2038,7 +2065,7 @@ Result SVC::MapProcessMemoryEx(Handle dst_process_handle, u32 dst_address,
dst_address,
memory.GetFCRAMRef(vma->second.backing_memory.GetPtr() + offset -
kernel.memory.GetFCRAMPointer(0)),
size, Kernel::MemoryState::Continuous);
size, map_as_private ? MemoryState::Private : MemoryState::Shared);
if (!vma_res.Succeeded()) {
return ResultInvalidAddressState;
@ -2060,8 +2087,7 @@ Result SVC::UnmapProcessMemoryEx(Handle process, u32 dst_address, u32 size) {
// Only linear memory supported
auto vma = dst_process->vm_manager.FindVMA(dst_address);
R_UNLESS(vma != dst_process->vm_manager.vma_map.end() &&
vma->second.type == VMAType::BackingMemory &&
vma->second.meminfo_state == MemoryState::Continuous,
vma->second.type == VMAType::BackingMemory,
ResultInvalidAddress);
dst_process->vm_manager.UnmapRange(dst_address, size);

2
src/core/hle/service/plgldr/plgldr.cpp
View file

@ -38,7 +38,7 @@ SERVICE_CONSTRUCT_IMPL(Service::PLGLDR::PLG_LDR)
namespace Service::PLGLDR {
static const Kernel::CoreVersion plgldr_version = Kernel::CoreVersion(1, 0, 0);
static const Kernel::CoreVersion plgldr_version = Kernel::CoreVersion(1, 0, 2);
PLG_LDR::PLG_LDR(Core::System& system_) : ServiceFramework{"plg:ldr", 1}, system(system_) {
static const FunctionInfo functions[] = {