hi all I recently pursued Linux IO stack and dove into kernel source code. that is when a user programm calls read or write syscall some functions will be called to finally make a io request and send it to device drivers and compelete io request. in this path which is known as Life of IO request i placed some printks in linux kernel and compile and install it then i can see IO requests information in /var/log/syslog. i totally used This good Post <https://scaryreasoner.wordpress.com/2013/09/14/the-life-of-io-in-the-linux-kernel/> which done for linux kernel. know i wanna do some thing like that in qemu to answer these too important questions: 1- what is path of a IO request from a guest os to host os and finally disk? (both siurce code approach and io stack approach) 2- how qemu determines an IO request is corresponds to which guest os?(if its feasible)
-- Best Rega ​r​ ds Ata Fatahi Baarzi <http://ce.sharif.edu/~fatahibarzi>
