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Re: [Xen-devel] [PATCH 00/18] xen/arm64: Suspend to RAM support for Xen



Hi Stefano,

On 13/11/2018 02:22, Stefano Stabellini wrote:
On Mon, 12 Nov 2018, Julien Grall wrote:
Hi Mirela,

Thank you for posting the series. Could you provide a branch with the patch
applied?

On 11/12/18 11:30 AM, Mirela Simonovic wrote:

--------------------------------------------------------------------------------
The series does not include:
a) UART driver-specific suspend/resume that gets called when console
suspends

I feel it will be difficult to test this series without UART driver support.
Would it be possible to integrate them in that series?

Actually, you can test this series simply using upstream Linux and
upstream Xen + this series. You can use echo mem > /sys/power/state in
dom0 to go into suspend, and for example setup an RTC wakeup event to
wakeup after a certain amount of time. For instance echo +30 >
/sys/class/rtc/rtc0/wakealarm.

I am quite surprised this series is enough given there are a BUG() in the suspend path for the console.

So what is your xen command line?

Cheers,

--
Julien Grall

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