Re: [Xen-devel] [PATCH] tools/firmware: use a canned config for seabios

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Mar 23, 2017 at 05:03:09PM +0000, Paul Durrant wrote:
> The use of seabios defconfig kills boot performance of Windows guests
> because the default is for the int13 handler to use PIO when accessing
> the emulated IDE device.
> 
> By instead using a canned configuration with the ATA settings overridden
> to enable DMA access (and also wider PIO) boot performance is markedly
> improved without the need to use a different (and possibly not supported)
> device model.
> 
> This patch adds the canned configuration into tools/firmware and modifies
> the Makefile rule to copy it into place.
> 

I think at some point someone (you?) tried to change the default
upstream, what was the outcome?

I'm not against shipping a default config, but that wouldn't benefit all
the distros that use their own seabios packages.

Wei.

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