--On 6 August 2013 14:02:18 +0200 Stefan Hajnoczi
<address@hidden> wrote:
My preference would be to move these to qemu_clock_deadline_ns (without
the INT32_MAX check) and delete the old qemu_clock_deadline routine
entirely, but I don't really understand the full set of circumstances
in which the qtest routines are meant to work.
Okay, that's excellent. It would be great to move to a single function.
The way qtest works is that it executes QEMU in a mode that does not run
guest code. Instead of running guest code it listens for commands over
a socket. The wire protocol can peek/poke memory, notify of interrupts,
and warp the clock.
There are test cases that use qtest to test emulated devices.
When qtest either steps the clock or sets it to a completely new value
using qtest_clock_warp() it runs all vm_clock timers that should expire
before the new time.
Does this help?