Re: [PATCH] - make sure that EFI variable data size is always 64 bit

[Matt Domsch <Matt_Domsch@dell.com>]

On Sun, Mar 19, 2006 at 09:33:01PM +0000, Matthew Garrett wrote:
> On Sun, Mar 19, 2006 at 03:29:01PM -0600, Matt Domsch wrote:
> 
> > NAK.  efibootmgr, the main userspace consumer of this struct, also
> > thinks this is an "unsigned long".
> 
> Hm. My copy of efibootmgr has:
> 
> typedef struct _efi_variable_t {
>         efi_char16_t  VariableName[1024/sizeof(efi_char16_t)];
>         efi_guid_t    VendorGuid;
>         uint64_t         DataSize;
>         uint8_t          Data[1024];
>         efi_status_t  Status;
>         uint32_t         Attributes;
> } __attribute__((packed)) efi_variable_t;
> 
> which certainly makes it look like it's expecting a 64-bit value. But 
> checking the spec does seem to suggest that datasize is a native value, 
> so presumably it's an efibootmgr bug rather than a kernel one? In that 
> case, this ought to be dropped.

Sorry, I did mean to post a link to the latest efibootmgr that has
this fixed:

Home page: http://linux.dell.com/efibootmgr/

For distros that care about 32-bit EFI, please upgrade to efibootmgr 0.5.3.
http://linux.dell.com/efibootmgr/efibootmgr-0.5.3.tar.gz
http://linux.dell.com/efibootmgr/efibootmgr-0.5.3.tar.gz.sign
http://linux.dell.com/efibootmgr/ChangeLog

Thanks,
Matt

-- 
Matt Domsch
Software Architect
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com