[patch 1/7 v2] Add function efi_remap_region for remapping to saved virt address
dyoung at redhat.com
Sun Nov 17 21:09:39 EST 2013
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.
Thanks for review
More information about the kexec