yuzu/src/core/hle/kernel/process.cpp
Subv d3634d4bf4 Core/ResourceLimits: Implemented the basic structure of ResourceLimits.
Implemented svcs GetResourceLimit, GetResourceLimitCurrentValues and GetResourceLimitLimitValues.

Note that the resource limits do not currently keep track of used objects, since we have no way to distinguish between an object created by the application, and an object created by some HLE module once we're inside Kernel::T::Create.
2015-05-14 22:50:13 -05:00

100 lines
3.4 KiB
C++

// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/logging/log.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/thread.h"
#include "core/memory.h"
namespace Kernel {
u32 Process::next_process_id;
SharedPtr<Process> Process::Create(std::string name, u64 program_id) {
SharedPtr<Process> process(new Process);
process->name = std::move(name);
process->program_id = program_id;
process->flags.raw = 0;
process->flags.memory_region = MemoryRegion::APPLICATION;
return process;
}
void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
for (int i = 0; i < len; ++i) {
u32 descriptor = kernel_caps[i];
u32 type = descriptor >> 20;
if (descriptor == 0xFFFFFFFF) {
// Unused descriptor entry
continue;
} else if ((type & 0xF00) == 0xE00) { // 0x0FFF
// Allowed interrupts list
LOG_WARNING(Loader, "ExHeader allowed interrupts list ignored");
} else if ((type & 0xF80) == 0xF00) { // 0x07FF
// Allowed syscalls mask
unsigned int index = ((descriptor >> 24) & 7) * 24;
u32 bits = descriptor & 0xFFFFFF;
while (bits && index < svc_access_mask.size()) {
svc_access_mask.set(index, bits & 1);
++index; bits >>= 1;
}
} else if ((type & 0xFF0) == 0xFE0) { // 0x00FF
// Handle table size
handle_table_size = descriptor & 0x3FF;
} else if ((type & 0xFF8) == 0xFF0) { // 0x007F
// Misc. flags
flags.raw = descriptor & 0xFFFF;
} else if ((type & 0xFFE) == 0xFF8) { // 0x001F
// Mapped memory range
if (i+1 >= len || ((kernel_caps[i+1] >> 20) & 0xFFE) != 0xFF8) {
LOG_WARNING(Loader, "Incomplete exheader memory range descriptor ignored.");
continue;
}
u32 end_desc = kernel_caps[i+1];
++i; // Skip over the second descriptor on the next iteration
AddressMapping mapping;
mapping.address = descriptor << 12;
mapping.size = (end_desc << 12) - mapping.address;
mapping.writable = descriptor & (1 << 20);
mapping.unk_flag = end_desc & (1 << 20);
address_mappings.push_back(mapping);
} else if ((type & 0xFFF) == 0xFFE) { // 0x000F
// Mapped memory page
AddressMapping mapping;
mapping.address = descriptor << 12;
mapping.size = Memory::PAGE_SIZE;
mapping.writable = true; // TODO: Not sure if correct
mapping.unk_flag = false;
} else if ((type & 0xFE0) == 0xFC0) { // 0x01FF
// Kernel version
int minor = descriptor & 0xFF;
int major = (descriptor >> 8) & 0xFF;
LOG_INFO(Loader, "ExHeader kernel version ignored: %d.%d", major, minor);
} else {
LOG_ERROR(Loader, "Unhandled kernel caps descriptor: 0x%08X", descriptor);
}
}
}
void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
Kernel::SetupMainThread(entry_point, main_thread_priority);
}
Kernel::Process::Process() {}
Kernel::Process::~Process() {}
SharedPtr<Process> g_current_process;
}