From: ole.rohne-vJEk5272eHo@public.gmane.org
To: Andi Kleen <ak-l3A5Bk7waGM@public.gmane.org>
Cc: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>,
Emmanuel Thom?? <Emmanuel.Thome-MZpvjPyXg2s@public.gmane.org>,
Jon Valvatne <jon-hc6/xhmWZxdWk0Htik3J/w@public.gmane.org>,
acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Suspend-to-RAM on Sony Vaios
Date: Wed, 03 Nov 2004 12:31:46 +0100 [thread overview]
Message-ID: <yzoekjbgod9.fsf@cern.ch> (raw)
In-Reply-To: <20041103105106.GA4174-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org> (Andi Kleen's message of "Wed, 3 Nov 2004 11:51:07 +0100")
Andi> Or rather not apply this. I have no plans to support switch back
Andi> to real mode on x86-64. It is just far too hackish and fragile.
I agree that return to real mode is kind of *hackish* - but I do not
agree that it has to be *fragile*. I'd like to repeat my general
comments on the alternatives, not particularly connected to x86-64:
Andi> Either do it before switching to protected/long mode or later
Andi> in a emulator.
Properly supporting the "POST before switching to PM" would require a
full real-mode bus/device resume. The ACPI specs doesn't even
guarantee a working southbridge at real mode resume.
"Later in an emulator" is arguably safer than real mode. But the
emulation needs to be done from kernel at the proper point in the
resume sequence. Leaving it to the user-mode suspend/resume script
is not an option.
Ole
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next prev parent reply other threads:[~2004-11-03 11:31 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-18 0:08 Suspend-to-RAM on Sony Vaios Jon Valvatne
[not found] ` <20041018020816.48673359-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2004-10-18 4:15 ` Ivor Hewitt
[not found] ` <200410180415.59801.ivor-rtBon1mkn18@public.gmane.org>
2004-10-18 13:15 ` Jon Valvatne
2004-10-18 11:26 ` Pavel Machek
[not found] ` <20041018112632.GB4400-u08AdweFZfgxtPtxi4kahqVXKuFTiq87@public.gmane.org>
2004-10-20 22:13 ` Jon Valvatne
[not found] ` <20041021001331.69c6c965-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2004-10-20 22:53 ` Pavel Machek
[not found] ` <20041020225334.GC29863-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2004-11-01 14:54 ` Emmanuel Thomé
[not found] ` <20041101145410.GB12006-xkTd+U360DcAs8EywTwl9A@public.gmane.org>
2004-11-01 15:17 ` ole.rohne-vJEk5272eHo
2004-11-01 15:41 ` Pavel Machek
[not found] ` <20041101154127.GB1056-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2004-11-02 22:00 ` Emmanuel Thomé
[not found] ` <20041102220034.GA31435-xkTd+U360DcAs8EywTwl9A@public.gmane.org>
2004-11-02 22:09 ` Pavel Machek
[not found] ` <20041102220958.GF1407-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2004-11-03 10:51 ` Andi Kleen
[not found] ` <20041103105106.GA4174-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-03 11:13 ` Pavel Machek
[not found] ` <20041103111306.GA1002-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2004-11-03 12:36 ` Andi Kleen
[not found] ` <20041103123625.GA18867-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-03 12:38 ` Pavel Machek
[not found] ` <20041103123830.GB1002-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2004-11-03 12:47 ` Andi Kleen
[not found] ` <20041103124757.GE18867-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-03 12:50 ` Pavel Machek
[not found] ` <20041103125047.GD1002-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2004-11-03 13:08 ` Andi Kleen
2004-11-03 11:31 ` ole.rohne-vJEk5272eHo [this message]
[not found] ` <yzoekjbgod9.fsf-vJEk5272eHo@public.gmane.org>
2004-11-03 12:41 ` Andi Kleen
[not found] ` <20041103124138.GC18867-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-03 13:52 ` ole.rohne-vJEk5272eHo
[not found] ` <yzois8n9h17.fsf-vJEk5272eHo@public.gmane.org>
2004-11-03 14:11 ` Andi Kleen
[not found] ` <20041103141134.GA24195-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-03 14:49 ` ole.rohne-vJEk5272eHo
2004-11-03 9:46 ` ole.rohne-vJEk5272eHo
2004-10-21 16:19 ` Florian Hühn
2004-10-19 8:11 ` Luc Saillard
-- strict thread matches above, loose matches on Subject: below --
2004-10-19 9:25 Li, Shaohua
[not found] ` <16A54BF5D6E14E4D916CE26C9AD3057559A05A-4yWAQGcml66iAffOGbnezLfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2004-10-19 10:11 ` Luc Saillard
2004-10-19 11:45 Li, Shaohua
[not found] ` <16A54BF5D6E14E4D916CE26C9AD3057559A0A4-4yWAQGcml66iAffOGbnezLfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2004-10-19 12:39 ` Luc Saillard
[not found] ` <20041019123930.GA25753-Snhs3Gxj9njPHUqn3ntIkQ@public.gmane.org>
2004-10-19 13:47 ` Matthew Garrett
2004-10-19 16:32 Pallipadi, Venkatesh
[not found] ` <88056F38E9E48644A0F562A38C64FB600323619D-exJ48ZlmiLpQxe9IK+vIArfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2004-10-19 16:47 ` Luc Saillard
[not found] ` <20041019164702.GB25753-Snhs3Gxj9njPHUqn3ntIkQ@public.gmane.org>
2004-10-20 9:45 ` Proinnsias Breathnach
2004-10-20 3:30 Li, Shaohua
2004-11-03 14:45 Pallipadi, Venkatesh
[not found] ` <88056F38E9E48644A0F562A38C64FB60033E4DDC-exJ48ZlmiLpQxe9IK+vIArfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2004-11-03 15:52 ` Andi Kleen
[not found] ` <20041103155217.GH24195-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-03 17:13 ` ole.rohne-vJEk5272eHo
[not found] ` <yzosm7q97q2.fsf-vJEk5272eHo@public.gmane.org>
2004-11-03 17:21 ` Andi Kleen
[not found] ` <20041103172120.GB18092-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-03 18:01 ` Matthew Garrett
[not found] ` <1099504898.31687.31.camel-Xmbc1Sz64/5pghhO6/9/sx2eb7JE58TQ@public.gmane.org>
2004-11-04 4:15 ` Andi Kleen
[not found] ` <20041104041525.GE21211-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-04 10:39 ` Matthew Garrett
2004-11-04 10:58 ` Andi Kleen
2004-11-04 13:49 ` ole.rohne-vJEk5272eHo
2004-11-04 8:29 ` ole.rohne-vJEk5272eHo
2004-11-04 8:24 ` ole.rohne-vJEk5272eHo
[not found] ` <yzo654mowci.fsf-vJEk5272eHo@public.gmane.org>
2004-11-04 9:02 ` Andi Kleen
[not found] ` <20041104090233.GD28895-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2004-11-04 11:40 ` Pavel Machek
2004-11-04 12:14 ` ole.rohne-vJEk5272eHo
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