[SeaBIOS] QEMU fw_cfg DMA interface

Stefan Hajnoczi stefanha at gmail.com
Thu Aug 6 12:27:16 CET 2015


On Thu, Aug 6, 2015 at 12:00 PM, Marc Marí <markmb at redhat.com> wrote:
> When running a Linux guest on top of QEMU, using the -kernel options, this
> is the timing improvement for x86:
>
> QEMU commit 2be4f242b50a8 and SeaBIOS commit 908a58c1d5ff
> QEMU startup time: .078
> BIOS startup time: .060
> Kernel setup time: .578
> Total time: .716
>
> QEMU with this patch series and SeaBIOS with this patch series
> QEMU startup time: .080
> BIOS startup time: .039
> Kernel setup time: .002
> Total time: .121

Impressive results!

Is this a fully-featured QEMU build or did you disable things?

Is this the default SeaBIOS build or did you disable things?

Stefan



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