[patch 1/7 v2] Add function efi_remap_region for remapping to saved virt address
dyoung at redhat.com
Mon Nov 18 04:37:49 EST 2013
On 11/18/13 at 10:09am, Dave Young wrote:
> On 11/15/13 at 04:02pm, Toshi Kani wrote:
> > On Tue, 2013-11-05 at 16:20 +0800, dyoung at redhat.com wrote:
> > > Kexec kernel will use saved runtime virtual mapping, so add a
> > > new function efi_remap_region to remapping it directly without
> > > calculate the virt addr from efi_va.
> > >
> > > The md is passed in from 1st kernel, the virtual addr is
> > > saved in md->virt_addr.
> > :
> > > +/*
> > > + * kexec kernel will use efi_map_region_fixed to map efi
> > > + * runtime memory ranges. md->virt_addr is the original virtual
> > > + * address which had been mapped in kexec 1st kernel.
> > > + */
> > > +void __init efi_map_region_fixed(efi_memory_desc_t *md)
> > Can you simply use __map_region() instead of creating this function?
> > Both functions seem to do the same thing. (In __map_region(), size and
> > end are not used.)
> Matt also suggest to reuse __map_region in another apply, will do.
Will remove the unused variables in another patch.
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