Re: [Xen-devel] What's the state of dom0 S3? It doesn't work on latest xen

[Qing He <qing.he@xxxxxxxxx>]

On Thu, 2009-09-17 at 16:00 +0800, Tom Rotenberg wrote:
> So, if i clone the latest xen unstable, and build it, it should work?
> 

Well, although I got MSI device working after a S3 resume on my box,
I just found it still lacking something. The hypervisor doesn't
automatically restore the vectors to the physical devices, but only
does that on a hypercall: physdev_restore_msi.

I guess that it works because the S3 during is short and the addr/data
are still in the device?

> How should i send the machine to sleep? running 's2ram' causes a
> segmentation fault...

I uses the following:
        echo 0 > /sys/class/rtc/rtc0/wakealarm
        echo +20 > /sys/class/rtc/rtc0/wakealarm
        echo mem > /sys/power/state

Thanks,
Qing

> 
> On Thu, Sep 17, 2009 at 5:39 AM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
> > On 09/16/09 18:14, Wei, Gang wrote:
> >> Current dom0 S3 should work with pci=nomsi. For msi case, we already have 
> >> workaround which may be sent out soon. The formal solution for msi case 
> >> which may require config space emulation need more consideration & 
> >> discussion.
> >>
> >
> > Actually I applied the MSI workaround today.
> >
> > ? ?J
> >

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