FEX-Emu--FEX/Source/Tools/FEXLoader/LinuxSyscalls/Syscalls/IOUring.cpp

// SPDX-License-Identifier: MIT
/*
$info$
tags: LinuxSyscalls|syscalls-shared
$end_info$
*/

#include "LinuxSyscalls/Syscalls.h"
#include "LinuxSyscalls/Syscalls/Thread.h"
#include "LinuxSyscalls/x64/Syscalls.h"
#include "LinuxSyscalls/x32/Syscalls.h"

#include <FEXCore/IR/IR.h>

#include <signal.h>
#include <sys/syscall.h>
#include <unistd.h>

namespace SignalDelegator {
  struct GuestSigAction;
}


namespace FEX::HLE {
  void RegisterIOUring(FEX::HLE::SyscallHandler *Handler) {
    using namespace FEXCore::IR;

    if (Handler->IsHostKernelVersionAtLeast(5, 1, 0)) {
      REGISTER_SYSCALL_IMPL_PASS_FLAGS(io_uring_setup, SyscallFlags::OPTIMIZETHROUGH | SyscallFlags::NOSYNCSTATEONENTRY,
        [](FEXCore::Core::CpuStateFrame *Frame, uint32_t entries, void* params) -> uint64_t {
        uint64_t Result = ::syscall(SYSCALL_DEF(io_uring_setup), entries, params);
        SYSCALL_ERRNO();
      });

      REGISTER_SYSCALL_IMPL_PASS_FLAGS(io_uring_enter, SyscallFlags::OPTIMIZETHROUGH | SyscallFlags::NOSYNCSTATEONENTRY,
        [](FEXCore::Core::CpuStateFrame *Frame, unsigned int fd, uint32_t to_submit, uint32_t min_complete, uint32_t flags, void *argp, size_t argsz) -> uint64_t {
        uint64_t Result = ::syscall(SYSCALL_DEF(io_uring_enter), fd, to_submit, min_complete, flags, argp, argsz);
        SYSCALL_ERRNO();
      });

      REGISTER_SYSCALL_IMPL_PASS_FLAGS(io_uring_register, SyscallFlags::OPTIMIZETHROUGH | SyscallFlags::NOSYNCSTATEONENTRY,
        [](FEXCore::Core::CpuStateFrame *Frame, unsigned int fd, unsigned int opcode, void *arg, uint32_t nr_args) -> uint64_t {
        uint64_t Result = ::syscall(SYSCALL_DEF(io_uring_register), fd, opcode, arg, nr_args);
        SYSCALL_ERRNO();
      });
    }
    else {
      REGISTER_SYSCALL_IMPL(io_uring_setup, UnimplementedSyscallSafe);
      REGISTER_SYSCALL_IMPL(io_uring_enter, UnimplementedSyscallSafe);
      REGISTER_SYSCALL_IMPL(io_uring_register, UnimplementedSyscallSafe);
    }
  }
}