[PATCH -mm] kexec jump -v9

Huang, Ying ying.huang at intel.com
Thu May 15 01:41:50 EDT 2008

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

Best Regards,
Huang Ying

More information about the kexec mailing list