[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Disk IO using QEMU
Hi,I am trying to understand how Disk I/O actually works in HVM. From what I understand, whenever a disk i/o takes place in a guest OS, a VMEXIT occurs. The hypervisor than executes some handler, which sets up an event pending bit for the event channel communicating with the QEMU-DM in the Domain 0. QEMU-DM than emulates these I/O instructions. Specifically, I wanted to know -1. The functions that are called in this process.... or the files that I need to look at in order to understand the exact flow. 2. Since, QEMU-DM handles both the display as well as the disk I/O, is the same event channel port used for communication between hypervisor and qemu-dm for both display and disk i/o? Thank you for you help. Regards, Alkesh Shah _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |