The loanIO confusions

Now Im totally confused by the directions:

I have three parts:

hardware IO : HTX , HRX.

software IO :STX,SRX.

generally HTX -> SRX , HRX <- STX.

Now I borrowed the HPS IO to the FPGA, they are MISO(59) and MOSI(58).

If I didnt misunderstand the meaning of h2f_loan_io_in/out/oe

Version 1

MISO(59) should be HPS output(oe = 1) linked to HRX,which means links to STX

MOSI(58) should be HPS input(oe = 0) linked to HTX,which means links to SRX

However

loan_io_in means FPGA output to HPS input

Version 2

MISO(59) should be HPS output (oe = 1) linked to SRX,which means links to HTX

MOSI(58) should be HPS input (oe = 0) linked to STX,which means links to HRX

Who can tell me which one is right?

And do I need to write the HPS code / pre-loader, if needed ,how?

Reguards.