lkml.org 
[lkml]   [2008]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH -mm] kexec jump -v9
"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


\
 
 \ /
  Last update: 2008-05-15 20:53    [W:0.167 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site