Re: [PATCH] efi: Retain boot service code until after switching tovirtual mode

From: Matthew Garrett
Date: Thu May 19 2011 - 16:33:23 EST

On Thu, May 19, 2011 at 01:26:27PM -0700, Yinghai Lu wrote:

> how many entries are listed in memmap?

So far I've been seeing about 20 boot services entries at most.

> Did you test this system that have lots of those entries ? like > 128?

Do any exist?

> because efi_init() is called before memblock_x86_fill(), that means
> memblock array for reserved can not be doubled yet. --- no usable
> entries in memblock array for ram.

Mm. I guess this can be shifted later.

> > +        * get rid of it all at this point
> > +        */
> > +       free_efi_boot_services();
> > +
> No, at that point memblock is not used any more. after mm_init()/mem_init()
> need to use free_bootmem_late() in free_efi_boot_services

Ah, ok.

Matthew Garrett | mjg59@xxxxxxxxxxxxx
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at