From: ebiederm@xmission.com (Eric W. Biederman)
To: "Huang, Ying" <ying.huang@intel.com>
Cc: nigel@nigel.suspend2.net,
Kexec Mailing List <kexec@lists.infradead.org>,
linux-kernel@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>,
Pavel Machek <pavel@ucw.cz>,
Andrew Morton <akpm@linux-foundation.org>,
linux-pm@lists.linux-foundation.org,
Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [PATCH -mm] kexec jump -v9
Date: Thu, 15 May 2008 11:42:03 -0700 [thread overview]
Message-ID: <m18wybs938.fsf@frodo.ebiederm.org> (raw)
In-Reply-To: <1210830110.23707.141.camel@caritas-dev.intel.com> (Ying Huang's message of "Thu, 15 May 2008 13:41:50 +0800")
"Huang, Ying" <ying.huang@intel.com> writes:
> Hi, Vivek,
>
> On Wed, 2008-05-14 at 16:52 -0400, Vivek Goyal wrote:
> [...]
>> Ok, I have done some testing on this patch. Currently I have just
>> tested switching back and forth between two kernels and it is working for
>> me.
>>
>> Just that I had to put LAPIC and IOAPIC in legacy mode for it to work. Few
>> comments/questions are inline.
>
> It seems that for LAPIC and IOAPIC, there is
> lapic_suspend()/lapic_resume() and ioapic_suspend()/ioapic_resume(),
> which will be called before/after kexec jump through
> device_power_down()/device_power_up(). So, the mechanism for
> LAPIC/IOAPIC is there, we may need to check the corresponding
> implementation.
And if you start with the device shutdown path the code is already
there and working.
Eric
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
WARNING: multiple messages have this Message-ID (diff)
From: ebiederm@xmission.com (Eric W. Biederman)
To: "Huang, Ying" <ying.huang@intel.com>
Cc: Vivek Goyal <vgoyal@redhat.com>, Pavel Machek <pavel@ucw.cz>,
nigel@nigel.suspend2.net, "Rafael J. Wysocki" <rjw@sisk.pl>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
linux-pm@lists.linux-foundation.org,
Kexec Mailing List <kexec@lists.infradead.org>
Subject: Re: [PATCH -mm] kexec jump -v9
Date: Thu, 15 May 2008 11:42:03 -0700 [thread overview]
Message-ID: <m18wybs938.fsf@frodo.ebiederm.org> (raw)
In-Reply-To: <1210830110.23707.141.camel@caritas-dev.intel.com> (Ying Huang's message of "Thu, 15 May 2008 13:41:50 +0800")
"Huang, Ying" <ying.huang@intel.com> writes:
> Hi, Vivek,
>
> On Wed, 2008-05-14 at 16:52 -0400, Vivek Goyal wrote:
> [...]
>> Ok, I have done some testing on this patch. Currently I have just
>> tested switching back and forth between two kernels and it is working for
>> me.
>>
>> Just that I had to put LAPIC and IOAPIC in legacy mode for it to work. Few
>> comments/questions are inline.
>
> It seems that for LAPIC and IOAPIC, there is
> lapic_suspend()/lapic_resume() and ioapic_suspend()/ioapic_resume(),
> which will be called before/after kexec jump through
> device_power_down()/device_power_up(). So, the mechanism for
> LAPIC/IOAPIC is there, we may need to check the corresponding
> implementation.
And if you start with the device shutdown path the code is already
there and working.
Eric
next prev parent reply other threads:[~2008-05-15 18:50 UTC|newest]
Thread overview: 254+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-06 3:13 [PATCH -mm] kexec jump -v9 Huang, Ying
2008-03-06 3:13 ` Huang, Ying
2008-03-11 21:10 ` Vivek Goyal
2008-03-11 21:10 ` Vivek Goyal
2008-03-11 21:10 ` Vivek Goyal
2008-03-11 21:59 ` Nigel Cunningham
2008-03-11 21:59 ` Nigel Cunningham
2008-03-11 23:55 ` Eric W. Biederman
2008-03-11 23:55 ` Eric W. Biederman
2008-03-11 23:55 ` Eric W. Biederman
2008-03-12 0:09 ` david
2008-03-12 0:09 ` david
2008-03-12 0:09 ` david
2008-03-12 2:14 ` Huang, Ying
2008-03-12 2:14 ` Huang, Ying
2008-03-12 2:14 ` Huang, Ying
2008-03-12 18:53 ` Vivek Goyal
2008-03-12 18:53 ` Vivek Goyal
2008-03-13 0:01 ` Eric W. Biederman
2008-03-13 0:01 ` Eric W. Biederman
2008-03-13 0:01 ` Eric W. Biederman
2008-03-12 18:53 ` Vivek Goyal
2008-03-11 21:59 ` Nigel Cunningham
2008-03-11 22:18 ` Rafael J. Wysocki
2008-03-11 22:18 ` Rafael J. Wysocki
2008-03-11 22:18 ` Rafael J. Wysocki
2008-03-12 2:02 ` Eric W. Biederman
2008-03-12 2:02 ` Eric W. Biederman
2008-03-12 2:02 ` Eric W. Biederman
2008-03-12 2:26 ` Huang, Ying
2008-03-12 2:26 ` Huang, Ying
2008-03-12 2:26 ` Huang, Ying
2008-03-11 23:24 ` Pavel Machek
2008-03-11 23:24 ` Pavel Machek
2008-03-11 23:24 ` Pavel Machek
2008-03-11 23:49 ` Rafael J. Wysocki
2008-03-11 23:49 ` Rafael J. Wysocki
2008-03-11 23:49 ` Rafael J. Wysocki
2008-03-12 1:55 ` Huang, Ying
2008-03-12 1:55 ` Huang, Ying
2008-03-12 1:55 ` Huang, Ying
2008-03-12 15:01 ` [linux-pm] " Alan Stern
2008-03-12 15:01 ` Alan Stern
2008-03-12 21:53 ` Rafael J. Wysocki
2008-03-12 21:53 ` Rafael J. Wysocki
2008-03-13 0:33 ` Eric W. Biederman
2008-03-13 0:33 ` [linux-pm] " Eric W. Biederman
2008-03-13 0:33 ` Eric W. Biederman
2008-03-13 17:03 ` Rafael J. Wysocki
2008-03-13 17:03 ` [linux-pm] " Rafael J. Wysocki
2008-03-13 17:03 ` Rafael J. Wysocki
2008-03-13 23:07 ` Eric W. Biederman
2008-03-13 23:07 ` [linux-pm] " Eric W. Biederman
2008-03-13 23:07 ` Eric W. Biederman
2008-03-14 1:31 ` Rafael J. Wysocki
2008-03-14 1:31 ` Rafael J. Wysocki
2008-03-18 16:56 ` Eric W. Biederman
2008-03-18 23:52 ` Pavel Machek
2008-03-18 23:52 ` [linux-pm] " Pavel Machek
2008-03-18 23:52 ` Pavel Machek
2008-03-19 0:08 ` Rafael J. Wysocki
2008-03-19 0:08 ` [linux-pm] " Rafael J. Wysocki
2008-03-19 0:08 ` Rafael J. Wysocki
2008-03-19 2:33 ` Alan Stern
2008-03-19 2:33 ` [linux-pm] " Alan Stern
2008-03-19 2:33 ` Alan Stern
2008-03-19 3:25 ` Eric W. Biederman
2008-03-19 3:25 ` Eric W. Biederman
2008-03-19 15:01 ` Alan Stern
2008-03-19 15:01 ` [linux-pm] " Alan Stern
2008-03-19 15:01 ` Alan Stern
2008-03-19 19:28 ` Rafael J. Wysocki
2008-03-19 19:28 ` Rafael J. Wysocki
2008-03-19 19:28 ` Rafael J. Wysocki
2008-03-20 10:40 ` Pavel Machek
2008-03-20 10:40 ` [linux-pm] " Pavel Machek
2008-03-20 10:40 ` Pavel Machek
2008-03-20 22:45 ` Rafael J. Wysocki
2008-03-20 22:45 ` [linux-pm] " Rafael J. Wysocki
2008-03-20 22:45 ` Rafael J. Wysocki
2008-03-20 23:01 ` Alan Stern
2008-03-20 23:01 ` [linux-pm] " Alan Stern
2008-03-20 23:01 ` Alan Stern
2008-03-20 23:22 ` Pavel Machek
2008-03-20 23:22 ` [linux-pm] " Pavel Machek
2008-03-20 23:22 ` Pavel Machek
2008-03-20 23:40 ` Rafael J. Wysocki
2008-03-20 23:40 ` Rafael J. Wysocki
2008-03-21 0:36 ` Rafael J. Wysocki
2008-03-21 0:36 ` [linux-pm] " Rafael J. Wysocki
2008-03-21 0:36 ` Rafael J. Wysocki
2008-03-21 0:52 ` Alan Stern
2008-03-21 0:52 ` [linux-pm] " Alan Stern
2008-03-21 0:52 ` Alan Stern
2008-03-21 22:05 ` Nigel Cunningham
2008-03-21 22:05 ` [linux-pm] " Nigel Cunningham
2008-03-21 22:05 ` Nigel Cunningham
2008-03-22 16:21 ` Pavel Machek
2008-03-22 16:21 ` [linux-pm] " Pavel Machek
2008-03-22 16:21 ` Pavel Machek
2008-03-22 17:45 ` Rafael J. Wysocki
2008-03-22 17:45 ` [linux-pm] " Rafael J. Wysocki
2008-03-22 17:45 ` Rafael J. Wysocki
2008-03-22 20:49 ` Alan Stern
2008-03-22 20:49 ` [linux-pm] " Alan Stern
2008-03-22 20:49 ` Alan Stern
2008-03-22 21:29 ` Rafael J. Wysocki
2008-03-22 21:29 ` Rafael J. Wysocki
2008-05-14 22:38 ` Eric W. Biederman
2008-05-14 22:38 ` [linux-pm] " Eric W. Biederman
2008-05-14 22:38 ` Eric W. Biederman
2008-05-14 23:47 ` Rafael J. Wysocki
2008-05-14 23:47 ` [linux-pm] " Rafael J. Wysocki
2008-05-14 23:47 ` Rafael J. Wysocki
2008-05-15 20:55 ` Eric W. Biederman
2008-05-15 20:55 ` [linux-pm] " Eric W. Biederman
2008-05-15 20:55 ` Eric W. Biederman
2008-05-15 21:20 ` Rafael J. Wysocki
2008-05-15 21:20 ` Rafael J. Wysocki
2008-05-15 21:20 ` Rafael J. Wysocki
2008-03-22 21:29 ` Rafael J. Wysocki
2008-03-20 23:40 ` Rafael J. Wysocki
2008-05-14 20:41 ` [linux-pm] " Maxim Levitsky
2008-05-14 20:41 ` Maxim Levitsky
2008-05-14 23:34 ` Eric W. Biederman
2008-05-14 23:34 ` [linux-pm] " Eric W. Biederman
2008-05-14 23:34 ` Eric W. Biederman
2008-05-14 20:41 ` Maxim Levitsky
2008-03-18 16:56 ` Eric W. Biederman
2008-03-14 1:31 ` Rafael J. Wysocki
2008-03-12 21:53 ` Rafael J. Wysocki
2008-03-12 15:01 ` Alan Stern
2008-03-12 8:57 ` Pavel Machek
2008-03-12 8:57 ` Pavel Machek
2008-03-12 8:57 ` Pavel Machek
2008-03-12 0:00 ` Nigel Cunningham
2008-03-12 0:00 ` Nigel Cunningham
2008-03-12 0:00 ` Nigel Cunningham
2008-03-12 1:45 ` Huang, Ying
2008-03-12 1:45 ` Huang, Ying
2008-03-12 1:45 ` Huang, Ying
2008-03-12 2:17 ` Eric W. Biederman
2008-03-12 2:17 ` Eric W. Biederman
2008-03-12 6:54 ` Huang, Ying
2008-03-12 6:54 ` Huang, Ying
2008-03-12 6:54 ` Huang, Ying
2008-03-12 19:37 ` Vivek Goyal
2008-03-12 19:37 ` Vivek Goyal
2008-03-14 8:03 ` Huang, Ying
2008-03-14 8:03 ` Huang, Ying
2008-03-14 8:03 ` Huang, Ying
2008-03-21 19:12 ` Vivek Goyal
2008-03-21 19:12 ` Vivek Goyal
2008-03-21 19:12 ` Vivek Goyal
2008-03-25 7:25 ` Huang, Ying
2008-03-25 7:25 ` Huang, Ying
2008-03-25 7:25 ` Huang, Ying
2008-03-12 19:37 ` Vivek Goyal
2008-03-12 2:17 ` Eric W. Biederman
2008-03-12 19:47 ` Vivek Goyal
2008-03-12 19:47 ` Vivek Goyal
2008-03-12 19:47 ` Vivek Goyal
2008-04-09 9:34 ` Pavel Machek
2008-04-09 9:34 ` Pavel Machek
2008-04-09 9:34 ` Pavel Machek
2008-04-09 12:30 ` Vivek Goyal
2008-04-09 12:30 ` Vivek Goyal
2008-04-09 12:30 ` Vivek Goyal
2008-05-14 16:03 ` Vivek Goyal
2008-05-14 16:03 ` Vivek Goyal
2008-05-14 17:49 ` Vivek Goyal
2008-05-14 17:49 ` Vivek Goyal
2008-05-14 17:49 ` Vivek Goyal
2008-05-14 16:03 ` Vivek Goyal
2008-05-14 20:52 ` Vivek Goyal
2008-05-14 20:52 ` Vivek Goyal
2008-05-14 20:52 ` Vivek Goyal
2008-05-15 2:32 ` Huang, Ying
2008-05-15 2:32 ` Huang, Ying
2008-05-15 2:32 ` Huang, Ying
2008-05-15 20:09 ` Vivek Goyal
2008-05-15 20:09 ` Vivek Goyal
2008-05-16 1:48 ` Huang, Ying
2008-05-16 1:48 ` Huang, Ying
2008-05-16 1:51 ` Vivek Goyal
2008-05-16 1:51 ` Vivek Goyal
2008-05-16 2:08 ` Huang, Ying
2008-05-16 2:08 ` Huang, Ying
2008-05-16 2:08 ` Huang, Ying
2008-05-16 1:51 ` Vivek Goyal
2008-05-16 12:13 ` Pavel Machek
2008-05-16 12:13 ` Pavel Machek
2008-05-16 12:13 ` Pavel Machek
2008-05-16 1:48 ` Huang, Ying
2008-05-15 20:09 ` Vivek Goyal
2008-05-15 5:41 ` Huang, Ying
2008-05-15 5:41 ` Huang, Ying
2008-05-15 5:41 ` Huang, Ying
2008-05-15 18:42 ` Eric W. Biederman
2008-05-15 18:42 ` Eric W. Biederman [this message]
2008-05-15 18:42 ` Eric W. Biederman
2008-05-16 0:51 ` Vivek Goyal
2008-05-16 0:51 ` Vivek Goyal
2008-05-16 1:35 ` Eric W. Biederman
2008-05-16 1:35 ` Eric W. Biederman
2008-05-16 1:35 ` Eric W. Biederman
2008-05-16 1:55 ` Huang, Ying
2008-05-16 1:55 ` Huang, Ying
2008-05-16 1:55 ` Huang, Ying
2008-05-27 7:27 ` Huang, Ying
2008-05-27 7:27 ` Huang, Ying
2008-05-27 22:15 ` Vivek Goyal
2008-05-27 22:15 ` Vivek Goyal
2008-05-28 1:35 ` Huang, Ying
2008-05-28 1:35 ` Huang, Ying
2008-05-28 1:35 ` Huang, Ying
2008-05-27 22:15 ` Vivek Goyal
2008-05-27 7:27 ` Huang, Ying
2008-05-16 0:51 ` Vivek Goyal
2008-05-14 22:30 ` Eric W. Biederman
2008-05-14 22:30 ` Eric W. Biederman
2008-05-14 23:55 ` Rafael J. Wysocki
2008-05-14 23:55 ` Rafael J. Wysocki
2008-05-15 22:03 ` Eric W. Biederman
2008-05-15 22:03 ` Eric W. Biederman
2008-05-15 23:20 ` Rafael J. Wysocki
2008-05-15 23:20 ` Rafael J. Wysocki
2008-05-15 23:20 ` Rafael J. Wysocki
2008-05-16 12:18 ` Pavel Machek
2008-05-16 12:18 ` Pavel Machek
2008-05-16 12:18 ` Pavel Machek
2008-05-16 14:20 ` Alan Stern
2008-05-16 14:20 ` [linux-pm] " Alan Stern
2008-05-16 14:20 ` Alan Stern
2008-05-15 22:03 ` Eric W. Biederman
2008-05-14 23:55 ` Rafael J. Wysocki
2008-05-15 1:42 ` Huang, Ying
2008-05-15 1:42 ` Huang, Ying
2008-05-15 1:42 ` Huang, Ying
2008-05-15 19:05 ` Rafael J. Wysocki
2008-05-15 19:05 ` Rafael J. Wysocki
2008-05-15 19:05 ` Rafael J. Wysocki
2008-05-15 14:14 ` [linux-pm] " Alan Stern
2008-05-15 14:14 ` Alan Stern
2008-05-15 20:48 ` Eric W. Biederman
2008-05-15 20:48 ` [linux-pm] " Eric W. Biederman
2008-05-15 20:48 ` Eric W. Biederman
2008-05-15 21:07 ` Alan Stern
2008-05-15 21:07 ` Alan Stern
2008-05-15 21:07 ` Alan Stern
2008-05-15 21:07 ` Alan Stern
2008-05-15 14:14 ` Alan Stern
2008-05-14 22:30 ` Eric W. Biederman
-- strict thread matches above, loose matches on Subject: below --
2008-03-06 3:13 Huang, Ying
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