From: Paolo Bonzini <pbonzini@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: xen-devel@lists.xensource.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v3 2/6] suspend: switch acpi s3 to new infrastructure.
Date: Thu, 09 Feb 2012 12:17:33 +0100 [thread overview]
Message-ID: <4F33AB4D.9070904@redhat.com> (raw)
In-Reply-To: <1328698819-31269-3-git-send-email-kraxel@redhat.com>
On 02/08/2012 12:00 PM, Gerd Hoffmann wrote:
> +/* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
> + BIOS will read it and start S3 resume at POST Entry */
> +static void rtc_notify_suspend(Notifier *notifier, void *data)
> +{
> + RTCState *s = container_of(notifier, RTCState, suspend_notifier);
> + rtc_set_memory(&s->dev, 0xF, 0xFE);
> +}
> +
Out of curiosity, who would set this on real hardware? And since RTC
memory is nvram, what happens if I remove the mains plug while the
system is in S3?
Paolo
next prev parent reply other threads:[~2012-02-09 11:17 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-08 11:00 [Qemu-devel] [PATCH v3 0/6] initial suspend support Gerd Hoffmann
2012-02-08 11:00 ` [Qemu-devel] [PATCH v3 1/6] suspend: add infrastructure Gerd Hoffmann
2012-02-09 8:48 ` Gleb Natapov
2012-02-09 10:45 ` Gerd Hoffmann
2012-02-09 11:19 ` Gleb Natapov
2012-02-09 12:02 ` Gerd Hoffmann
2012-02-09 12:37 ` Gleb Natapov
2012-02-09 12:46 ` Gerd Hoffmann
2012-02-09 13:17 ` Gleb Natapov
2012-02-09 13:29 ` Gerd Hoffmann
2012-02-09 16:00 ` Gerd Hoffmann
2012-02-09 16:05 ` Gleb Natapov
2012-02-08 11:00 ` [Qemu-devel] [PATCH v3 2/6] suspend: switch acpi s3 to new infrastructure Gerd Hoffmann
2012-02-09 8:53 ` Gleb Natapov
2012-02-09 10:51 ` Gerd Hoffmann
2012-02-09 11:14 ` Gleb Natapov
2012-02-09 11:13 ` [Qemu-devel] [Xen-devel] " Stefano Stabellini
2012-02-09 11:17 ` Paolo Bonzini [this message]
2012-02-09 12:31 ` [Qemu-devel] " Gleb Natapov
2012-02-09 12:47 ` Paolo Bonzini
2012-02-09 12:53 ` Gleb Natapov
2012-02-08 11:00 ` [Qemu-devel] [PATCH v3 3/6] suspend: add system_wakeup monitor command Gerd Hoffmann
2012-02-09 8:54 ` Gleb Natapov
2012-02-08 11:00 ` [Qemu-devel] [PATCH v3 4/6] suspend: make ps/2 devices wakeup the guest Gerd Hoffmann
2012-02-08 11:00 ` [Qemu-devel] [PATCH v3 5/6] suspend: make serial ports " Gerd Hoffmann
2012-02-08 11:00 ` [Qemu-devel] [PATCH v3 6/6] suspend: make rtc alarm " Gerd Hoffmann
2012-02-09 8:56 ` Gleb Natapov
2012-02-09 12:00 ` Gerd Hoffmann
2012-02-09 12:24 ` Gleb Natapov
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