Messages in this thread |  | | | Subject | Re: [PATCH -mm] kexec jump -v9 | | From | "Huang, Ying" <> | | Date | Thu, 15 May 2008 13:41:50 +0800 |
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.
Best Regards,
Huang Ying
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