Re: [Xen-devel] [PATCH v3 1/2] efi: Fix allocation problems if ExitBootServices() fails

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 01.06.15 at 12:17, <ross.lagerwall@xxxxxxxxxx> wrote:
> If calling ExitBootServices() fails, the required memory map size may
> have increased. When initially allocating the memory map, allocate a
> slightly larger buffer (by an arbitrary 8 entries) to fix this.
> 
> The ARM code path was already allocating a larger buffer than required,
> so this moves the code to be common for all architectures.
> 
> This was seen on the following machine when using the iscsidxe UEFI
> driver. The machine would consistently fail the first call to
> ExitBootServices().
> System Information
>         Manufacturer: Supermicro
>         Product Name: X10SLE-F/HF
> BIOS Information
>         Vendor: American Megatrends Inc.
>         Version: 2.00
>         Release Date: 04/24/2014
> 
> Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>

Provided ARM folks are happy with the reduced increase,
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>


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