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Re: [Xen-devel] Does XEN ARM support RTC in domu?

Hi Julien,

> -----Original Message-----
> From: Julien Grall [mailto:julien.grall@xxxxxxx]
> Sent: 2018年11月1日 2:52
> To: Peng Fan <peng.fan@xxxxxxx>; xen-devel@xxxxxxxxxxxxxxxxxxxx; Stefano
> Stabellini <sstabellini@xxxxxxxxxx>
> Subject: Re: Does XEN ARM support RTC in domu?
> On 10/31/18 1:57 PM, Peng Fan wrote:
> > Hi All,
> Hi,
> >
> > Just have a question, does XEN ARM support RTC in domu? To support Android
> in DomU, RTC is needed for alarm, but I did not find information about RTC on
> xen for domu. So this need a new RTC paravirtualization driver? Any 
> suggestions?
> By RTC, do you mean Real-Time Clock? Something like PL031? Or do you have
> something else in mind?

Yes, Real Time Clock like PL031 in DomU. I do not have a good idea support RTC 
in ARM DomU,
KVM and XEN x86 seems use emulated RTC in qemu. Thinking of paravirtual RTC, 
and dom0
control the expire time for alarm.


> Cheers,
> --
> Julien Grall
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