Re: [PATCH 3/4] EFI: Add support for variables longer than 1024bytes

[Matthew Garrett]

On Wed, Dec 14, 2011 at 02:44:34PM -0800, H. Peter Anvin wrote:
> On 12/14/2011 02:39 PM, Matthew Garrett wrote:
> >> What are your thoughts on _not_ wrapping efi_variable with
> >> extended_efi_variable, and instead just using a
> >> "internal_efi_variable" structure that we copy stuff into/outof.  I
> >> think that would make the memory management for dealing with the
> >> different sizes a lot easier to follow.
> > 
> > Hm. I think that'd only work if we expose a new interface. Writes would 
> > be easy enough to handle, but reads still need to work for old apps.
> > 
> 
> Would making the old ABI readonly and add a new write interface resolve
> the problem with compat mode?

Yes, but we'd break existing userspace.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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