Re: [PATCH -mm] kexec jump -v9

[Pavel Machek]

On Fri 2008-05-16 09:48:34, Huang, Ying wrote:
> On Thu, 2008-05-15 at 16:09 -0400, Vivek Goyal wrote:
> [...]
> > Ok, You want to make BIOS calls. We already do that using vm86 mode and
> > use bios real mode interrupts. So why do we need this interface? Or, IOW,
> > how is this interface better?
> 
> It can call code in 32-bit physical mode in addition to real mode. So It
> can be used to call EFI runtime service, especially call EFI 64 runtime
> service under 32-bit kernel or vice versa.
> 
> The main purpose of kexec jump is for hibernation. But I think if the
> effort is small, why not support general 32-bit physical mode code call
> at same time.

I believe we should focus on kexecing kernels, first.

Only way to prove the effort is small is by having small followup
patch, and that needs the two patches separated...
									Pavel
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