On Mon, Dec 09, 2013 at 05:42:23PM +0800, Dave Young wrote:
> For kexec/kdump kernel efi runtime mappings are saved, printing original whole
> memmap ranges does not make sense anymore. So introduce a new function to only
> print runtime maps in case kexec/kdump kernel is used.
> 
> changelog:
> Matt: use efi_setup instead of esdata
>       share function print_efi_memmap for both normal and kexec boot.
> 
> Signed-off-by: Dave Young <dyo...@redhat.com>
> ---
>  arch/x86/platform/efi/efi.c | 24 +++++++++++++++++-------
>  1 file changed, 17 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
> index 69a6ec2..94a1cbc 100644
> --- a/arch/x86/platform/efi/efi.c
> +++ b/arch/x86/platform/efi/efi.c
> @@ -423,19 +423,16 @@ int __init efi_memblock_x86_reserve_range(void)
>       return 0;
>  }
>  
> -static void __init print_efi_memmap(void)
> +static void __init print_efi_memmap(void *map, int nr_map, int md_size)
>  {
>  #ifdef EFI_DEBUG
>       efi_memory_desc_t *md;
>       void *p;
>       int i;
>  
> -     for (p = memmap.map, i = 0;
> -          p < memmap.map_end;
> -          p += memmap.desc_size, i++) {
> +     for (p = map, i = 0; i < nr_map; p += md_size, i++) {
>               md = p;
> -             pr_info("mem%02u: type=%u, attr=0x%llx, "
> -                     "range=[0x%016llx-0x%016llx) (%lluMB)\n",
> +             pr_info("mem%02u: type=%u, attr=0x%llx, 
> range=[0x%016llx-0x%016llx) (%lluMB)\n",
>                       i, md->type, md->attribute, md->phys_addr,
>                       md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT),
>                       (md->num_pages >> (20 - EFI_PAGE_SHIFT)));
> @@ -797,7 +794,20 @@ void __init efi_init(void)
>               x86_platform.set_wallclock = efi_set_rtc_mmss;
>       }
>  #endif
> -     print_efi_memmap();
> +     if (efi_setup) {
> +             int s;
> +             struct efi_setup_data *data;
> +
> +             s = sizeof(*data) + nr_efi_runtime_map * sizeof(data->map[0]);
> +             data = early_memremap(efi_setup, s);
> +             if (!data)
> +                     return;
> +             print_efi_memmap(data->map, nr_efi_runtime_map,
> +                              sizeof(data->map[0]));
> +             early_memunmap(data, s);

Well, if you call print_efi_memmap() in parse_efi_setup() you can save
yourself that map/unmaping no?

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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