Function tdx_command

hypervisor/src/kvm/mod.rs:1411–1445

(
    fd: &RawFd,
    command: TdxCommand,
    flags: u32,
    data: *const libc::c_void,
)

#[cfg(feature = "tdx")]
fn tdx_command(
    fd: &RawFd,
    command: TdxCommand,
    flags: u32,
    data: *const libc::c_void,
) -> std::result::Result<(), std::io::Error> {
    #[repr(C)]
    struct TdxIoctlCmd {
        command: TdxCommand,
        flags: u32,
        data: u64,
        error: u64,
        unused: u64,
    }
    let cmd = TdxIoctlCmd {
        command,
        flags,
        data: data as _,
        error: 0,
        unused: 0,
    };
    // SAFETY: FFI call. All input parameters are valid.
    let ret = unsafe {
        ioctl_with_val(
            fd,
            KVM_MEMORY_ENCRYPT_OP(),
            &raw const cmd as std::os::raw::c_ulong,
        )
    };

    if ret < 0 {
        return Err(std::io::Error::last_os_error());
    }
    Ok(())
}

/// Wrapper over KVM system ioctls.
pub struct KvmHypervisor {