On 07/24/2012 02:28 PM, Gleb Natapov wrote: > On Tue, Jul 24, 2012 at 02:26:33PM +0200, Sasha Levin wrote: >> On 07/24/2012 09:44 AM, Gleb Natapov wrote: >>> On Mon, Jul 23, 2012 at 10:32:39PM +0200, Sasha Levin wrote: >>>> As it was discussed recently, there's currently no way for the guest to >>>> notify >>>> the host about panics. Further more, there's no reasonable way to notify >>>> the >>>> host of other critical events such as an OOM kill. >>>> >>>> This short patch series introduces a new device named virtio-notifier which >>>> does two simple things: >>>> >>>> 1. Provide a simple interface for the guest to notify the host of critical >>> To get early OOPSes virtio will have to be compiled into the kernel. If >>> your are so keen on using virtio for this though, why not just use >>> dedicated virtio serial channel? >> >> Let's separate between having log for these events and receiving >> notifications about them. >> >> For the log part, I can already run a simple serial console to dump >> everything somewhere. I'm more concerned about having notifications about >> something critical happening when the guest is already up and running. >> > I am talking about notifications. Run your notification protocol over > dedicated virtio-serial channel. Logs goes to virtio-console as you've > said.
Ah, so just add another channel into virtio-serial to pass these notifications? Good idea - I'll look into it. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
