qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
* [Qemu-devel] MMIO access hangs the whole virtual machine
@ 2018-11-21 20:50 Hangchen YU
  0 siblings, 0 replies; only message in thread
From: Hangchen YU @ 2018-11-21 20:50 UTC (permalink / raw)
  To: qemu-devel

Hi-

I created an IO by memory_region_init_io with a MemoryRegionOps in a block
device. The IO r/w handler takes a while to finish, and during that time
the whole VM hangs.
There was a similar discussion about the synchronous qemu_aio_cancel four
years ago (
https://lists.gnu.org/archive/html/qemu-devel/2014-08/msg01545.html). Has
that issue been resolved or is there any alternative way to make the MMIO
access asynchronous?

Thanks,
Hangchen

^ permalink raw reply	[flat|nested] only message in thread
only message in thread, other threads:[~2018-11-21 21:02 UTC | newest]

Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-11-21 20:50 [Qemu-devel] MMIO access hangs the whole virtual machine Hangchen YU

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).