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Re: [Qemu-devel] [RFC 5/7] fw_cfg file sort

From: Laszlo Ersek
Subject: Re: [Qemu-devel] [RFC 5/7] fw_cfg file sort
Date: Tue, 21 Jul 2015 21:53:06 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0

On 07/21/15 18:18, Stefan Hajnoczi wrote:
> On Tue, Jul 21, 2015 at 5:03 PM, Marc Marí <address@hidden> wrote:
>> From: Gerd Hoffmann <address@hidden>
>> This is what it takes to have a sorted fw_cfg file directory.
>> Entries are inserted at the correct place instead of being
>> appended to the end in case sorting is enabled.
>> Compatibility fluff (enable sorting for new machine types only)
>> isn't there yet.
>> Signed-off-by: Gerd Hoffmann <address@hidden>
>> ---
>>  hw/nvram/fw_cfg.c | 30 ++++++++++++++++++++++++------
>>  1 file changed, 24 insertions(+), 6 deletions(-)
> Probably best to drop this patch from this series, unless it's needed.
> I guess sorting files allows for binary search but it's unrelated to
> DMA and needs to be accompanied with guest code (e.g. SeaBIOS) that
> actually uses the feature.

I recall another discussion where the sorting was considered under a
migration aspect (not for the sake of binary search on the guest side).

.... Yes, here it is:


The commit message should give a full rationale, preferably.


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