140314b30SXiaoye Zheng use crate::arch::kvm::vmx::vcpu::VcpuContextFrame; 240314b30SXiaoye Zheng use crate::arch::KVMArch; 340314b30SXiaoye Zheng use crate::filesystem::devfs::DevFS; 440314b30SXiaoye Zheng use crate::filesystem::vfs::{ 540314b30SXiaoye Zheng core::generate_inode_id, file::FileMode, make_rawdev, FilePrivateData, FileSystem, FileType, 640609970SGnoCiYeH IndexNode, Metadata, 740314b30SXiaoye Zheng }; 840314b30SXiaoye Zheng use crate::mm::VirtAddr; 940314b30SXiaoye Zheng use crate::syscall::user_access::copy_from_user; 1040314b30SXiaoye Zheng use crate::virt::kvm::vcpu::Vcpu; 1140314b30SXiaoye Zheng use crate::virt::kvm::vm; 1240314b30SXiaoye Zheng use crate::{filesystem, kdebug}; 13*91e9d4abSLoGin use crate::{libs::spinlock::SpinLock, time::TimeSpec}; 1440314b30SXiaoye Zheng use alloc::{ 1540314b30SXiaoye Zheng string::String, 1640314b30SXiaoye Zheng sync::{Arc, Weak}, 1740314b30SXiaoye Zheng vec::Vec, 1840314b30SXiaoye Zheng }; 19*91e9d4abSLoGin use system_error::SystemError; 2040314b30SXiaoye Zheng 2140314b30SXiaoye Zheng // pub const KVM_API_VERSION:u32 = 12; 2240314b30SXiaoye Zheng pub const KVM_RUN: u32 = 0x00; 2340314b30SXiaoye Zheng // pub const KVM_GET_REGS: u32 = 0x01; 2440314b30SXiaoye Zheng pub const KVM_SET_REGS: u32 = 0x02; 2540314b30SXiaoye Zheng 2640314b30SXiaoye Zheng // pub const GUEST_STACK_SIZE:usize = 1024; 2740314b30SXiaoye Zheng // pub const HOST_STACK_SIZE:usize = 0x1000 * 6; 2840314b30SXiaoye Zheng 2940314b30SXiaoye Zheng /* 3040314b30SXiaoye Zheng * ioctls for /dev/vm fds: 3140314b30SXiaoye Zheng */ 3240314b30SXiaoye Zheng // pub const KVM_CREATE_VCPU: u32 = 0x00; 3340314b30SXiaoye Zheng // pub const KVM_SET_USER_MEMORY_REGION: u32 = 0x01; 3440314b30SXiaoye Zheng // pub const KVM_GET_DIRTY_LOG: u32 = 0x02; 3540314b30SXiaoye Zheng // pub const KVM_IRQFD: u32 = 0x03; 3640314b30SXiaoye Zheng // pub const KVM_IOEVENTFD: u32 = 0x04; 3740314b30SXiaoye Zheng // pub const KVM_IRQ_LINE_STATUS: u32 = 0x05; 3840314b30SXiaoye Zheng 3940314b30SXiaoye Zheng // #[derive(Debug)] 4040314b30SXiaoye Zheng // pub struct InodeInfo { 4140314b30SXiaoye Zheng // kvm: Arc<Hypervisor>, 4240314b30SXiaoye Zheng // } 4340314b30SXiaoye Zheng 4440314b30SXiaoye Zheng #[derive(Debug)] 4540314b30SXiaoye Zheng pub struct VcpuInode { 4640314b30SXiaoye Zheng /// uuid 暂时不知道有什么用(x 4740314b30SXiaoye Zheng // uuid: Uuid, 4840314b30SXiaoye Zheng /// 指向自身的弱引用 4940314b30SXiaoye Zheng self_ref: Weak<LockedVcpuInode>, 5040314b30SXiaoye Zheng /// 指向inode所在的文件系统对象的指针 5140314b30SXiaoye Zheng fs: Weak<DevFS>, 5240314b30SXiaoye Zheng /// INode 元数据 5340314b30SXiaoye Zheng metadata: Metadata, 5440314b30SXiaoye Zheng // fdata: InodeInfo, 5540314b30SXiaoye Zheng } 5640314b30SXiaoye Zheng 5740314b30SXiaoye Zheng #[derive(Debug)] 5840314b30SXiaoye Zheng pub struct LockedVcpuInode(SpinLock<VcpuInode>); 5940314b30SXiaoye Zheng 6040314b30SXiaoye Zheng impl LockedVcpuInode { 6140314b30SXiaoye Zheng pub fn new() -> Arc<Self> { 6240314b30SXiaoye Zheng let inode = VcpuInode { 6340314b30SXiaoye Zheng self_ref: Weak::default(), 6440314b30SXiaoye Zheng fs: Weak::default(), 6540314b30SXiaoye Zheng metadata: Metadata { 6640314b30SXiaoye Zheng dev_id: 1, 6740314b30SXiaoye Zheng inode_id: generate_inode_id(), 6840314b30SXiaoye Zheng size: 0, 6940314b30SXiaoye Zheng blk_size: 0, 7040314b30SXiaoye Zheng blocks: 0, 7140314b30SXiaoye Zheng atime: TimeSpec::default(), 7240314b30SXiaoye Zheng mtime: TimeSpec::default(), 7340314b30SXiaoye Zheng ctime: TimeSpec::default(), 7440314b30SXiaoye Zheng file_type: FileType::KvmDevice, // 文件夹,block设备,char设备 7540314b30SXiaoye Zheng mode: filesystem::vfs::syscall::ModeType::S_IALLUGO, 7640314b30SXiaoye Zheng nlinks: 1, 7740314b30SXiaoye Zheng uid: 0, 7840314b30SXiaoye Zheng gid: 0, 7940314b30SXiaoye Zheng raw_dev: make_rawdev(1, 4), // 这里用来作为device number 8040314b30SXiaoye Zheng }, 8140314b30SXiaoye Zheng // fdata: InodeInfo { 8240314b30SXiaoye Zheng // kvm: kvm, 8340314b30SXiaoye Zheng // }, 8440314b30SXiaoye Zheng }; 8540314b30SXiaoye Zheng 8640314b30SXiaoye Zheng let result = Arc::new(LockedVcpuInode(SpinLock::new(inode))); 8740314b30SXiaoye Zheng result.0.lock().self_ref = Arc::downgrade(&result); 8840314b30SXiaoye Zheng 8940314b30SXiaoye Zheng return result; 9040314b30SXiaoye Zheng } 9140314b30SXiaoye Zheng } 9240314b30SXiaoye Zheng 9340314b30SXiaoye Zheng impl IndexNode for LockedVcpuInode { 9440314b30SXiaoye Zheng fn as_any_ref(&self) -> &dyn core::any::Any { 9540314b30SXiaoye Zheng self 9640314b30SXiaoye Zheng } 9740314b30SXiaoye Zheng 9840314b30SXiaoye Zheng fn open(&self, _data: &mut FilePrivateData, _mode: &FileMode) -> Result<(), SystemError> { 9940314b30SXiaoye Zheng kdebug!("file private data:{:?}", _data); 10040314b30SXiaoye Zheng return Ok(()); 10140314b30SXiaoye Zheng } 10240314b30SXiaoye Zheng 10340314b30SXiaoye Zheng fn close(&self, _data: &mut FilePrivateData) -> Result<(), SystemError> { 10440314b30SXiaoye Zheng return Ok(()); 10540314b30SXiaoye Zheng } 10640314b30SXiaoye Zheng 10740314b30SXiaoye Zheng fn metadata(&self) -> Result<Metadata, SystemError> { 10840314b30SXiaoye Zheng return Ok(self.0.lock().metadata.clone()); 10940314b30SXiaoye Zheng } 11040314b30SXiaoye Zheng 11140314b30SXiaoye Zheng fn fs(&self) -> Arc<dyn FileSystem> { 11240314b30SXiaoye Zheng return self.0.lock().fs.upgrade().unwrap(); 11340314b30SXiaoye Zheng } 11440314b30SXiaoye Zheng 11540314b30SXiaoye Zheng fn list(&self) -> Result<Vec<String>, SystemError> { 11640314b30SXiaoye Zheng Err(SystemError::EOPNOTSUPP_OR_ENOTSUP) 11740314b30SXiaoye Zheng } 11840314b30SXiaoye Zheng 11940314b30SXiaoye Zheng fn set_metadata(&self, metadata: &Metadata) -> Result<(), SystemError> { 12040314b30SXiaoye Zheng let mut inode = self.0.lock(); 12140314b30SXiaoye Zheng inode.metadata.atime = metadata.atime; 12240314b30SXiaoye Zheng inode.metadata.mtime = metadata.mtime; 12340314b30SXiaoye Zheng inode.metadata.ctime = metadata.ctime; 12440314b30SXiaoye Zheng inode.metadata.mode = metadata.mode; 12540314b30SXiaoye Zheng inode.metadata.uid = metadata.uid; 12640314b30SXiaoye Zheng inode.metadata.gid = metadata.gid; 12740314b30SXiaoye Zheng 12840314b30SXiaoye Zheng return Ok(()); 12940314b30SXiaoye Zheng } 13040314b30SXiaoye Zheng 13140314b30SXiaoye Zheng /// @brief io control接口 13240314b30SXiaoye Zheng /// 13340314b30SXiaoye Zheng /// @param cmd 命令 13440314b30SXiaoye Zheng /// @param data 数据 13540314b30SXiaoye Zheng /// 13640314b30SXiaoye Zheng /// @return 成功:Ok() 13740314b30SXiaoye Zheng /// 失败:Err(错误码) 13840314b30SXiaoye Zheng fn ioctl(&self, cmd: u32, data: usize) -> Result<usize, SystemError> { 13940314b30SXiaoye Zheng match cmd { 14040314b30SXiaoye Zheng 0xdeadbeef => { 14140314b30SXiaoye Zheng kdebug!("kvm_cpu ioctl"); 14240314b30SXiaoye Zheng Ok(0) 14340314b30SXiaoye Zheng } 14440314b30SXiaoye Zheng KVM_RUN => { 14540314b30SXiaoye Zheng kdebug!("kvm_cpu ioctl"); 14640314b30SXiaoye Zheng // let guest_stack = vec![0xCC; GUEST_STACK_SIZE]; 14740314b30SXiaoye Zheng // let host_stack = vec![0xCC; HOST_STACK_SIZE]; 14840314b30SXiaoye Zheng // let guest_rsp = guest_stack.as_ptr() as u64 + GUEST_STACK_SIZE as u64; 14940314b30SXiaoye Zheng // let host_rsp = (host_stack.as_ptr() as u64) + HOST_STACK_SIZE as u64; 15040314b30SXiaoye Zheng // let hypervisor = Hypervisor::new(1, host_rsp, 0).expect("Cannot create hypervisor"); 15140314b30SXiaoye Zheng // let vcpu = VmxVcpu::new(1, Arc::new(Mutex::new(hypervisor)), host_rsp, guest_rsp, guest_code as *const () as u64).expect("Cannot create VcpuData"); 15240314b30SXiaoye Zheng // vcpu.virtualize_cpu().expect("Cannot virtualize cpu"); 15340314b30SXiaoye Zheng let vcpu = vm(0).unwrap().vcpu[0].clone(); 15440314b30SXiaoye Zheng vcpu.lock().virtualize_cpu()?; 15540314b30SXiaoye Zheng KVMArch::kvm_arch_vcpu_ioctl_run(vcpu.as_ref())?; 15640314b30SXiaoye Zheng Ok(0) 15740314b30SXiaoye Zheng } 15840314b30SXiaoye Zheng KVM_SET_REGS => { 15940314b30SXiaoye Zheng let mut kvm_regs = VcpuContextFrame::default(); 16040314b30SXiaoye Zheng unsafe { 16140314b30SXiaoye Zheng copy_from_user( 16240314b30SXiaoye Zheng core::slice::from_raw_parts_mut( 16340314b30SXiaoye Zheng (&mut kvm_regs as *mut _) as *mut u8, 16440314b30SXiaoye Zheng core::mem::size_of::<VcpuContextFrame>(), 16540314b30SXiaoye Zheng ), 16640314b30SXiaoye Zheng VirtAddr::new(data), 16740314b30SXiaoye Zheng )?; 16840314b30SXiaoye Zheng } 16940314b30SXiaoye Zheng kdebug!( 17040314b30SXiaoye Zheng "rip={:x}, rflags={:x}, rsp={:x}, rax={:x}", 17140314b30SXiaoye Zheng kvm_regs.rip, 17240314b30SXiaoye Zheng kvm_regs.rflags, 17340314b30SXiaoye Zheng kvm_regs.regs[6], 17440314b30SXiaoye Zheng kvm_regs.regs[0], 17540314b30SXiaoye Zheng ); 17640314b30SXiaoye Zheng 17740314b30SXiaoye Zheng let vcpu = vm(0).unwrap().vcpu[0].clone(); 17840314b30SXiaoye Zheng vcpu.lock().set_regs(kvm_regs)?; 17940314b30SXiaoye Zheng 18040314b30SXiaoye Zheng Ok(0) 18140314b30SXiaoye Zheng } 18240314b30SXiaoye Zheng _ => { 18340314b30SXiaoye Zheng kdebug!("kvm_cpu ioctl"); 18440314b30SXiaoye Zheng Ok(usize::MAX) 18540314b30SXiaoye Zheng } 18640314b30SXiaoye Zheng } 18740314b30SXiaoye Zheng } 18840314b30SXiaoye Zheng /// 读设备 - 应该调用设备的函数读写,而不是通过文件系统读写 18940314b30SXiaoye Zheng fn read_at( 19040314b30SXiaoye Zheng &self, 19140314b30SXiaoye Zheng _offset: usize, 19240314b30SXiaoye Zheng _len: usize, 19340314b30SXiaoye Zheng _buf: &mut [u8], 19440314b30SXiaoye Zheng _data: &mut FilePrivateData, 19540314b30SXiaoye Zheng ) -> Result<usize, SystemError> { 19640314b30SXiaoye Zheng Err(SystemError::EOPNOTSUPP_OR_ENOTSUP) 19740314b30SXiaoye Zheng } 19840314b30SXiaoye Zheng 19940314b30SXiaoye Zheng /// 写设备 - 应该调用设备的函数读写,而不是通过文件系统读写 20040314b30SXiaoye Zheng fn write_at( 20140314b30SXiaoye Zheng &self, 20240314b30SXiaoye Zheng _offset: usize, 20340314b30SXiaoye Zheng _len: usize, 20440314b30SXiaoye Zheng _buf: &[u8], 20540314b30SXiaoye Zheng _data: &mut FilePrivateData, 20640314b30SXiaoye Zheng ) -> Result<usize, SystemError> { 20740314b30SXiaoye Zheng Err(SystemError::EOPNOTSUPP_OR_ENOTSUP) 20840314b30SXiaoye Zheng } 20940314b30SXiaoye Zheng } 210