From: Gerd Hoffmann <kraxel@redhat.com>
To: Kevin O'Connor <kevin@koconnor.net>
Cc: Drew <drjones@redhat.com>, "Stefan Hajnoczi" <stefanha@gmail.com>,
seabios@seabios.org, qemu-devel <qemu-devel@nongnu.org>,
"Marc Marí" <markmb@redhat.com>, Laszlo <lersek@redhat.com>
Subject: Re: [Qemu-devel] QEMU fw_cfg DMA interface
Date: Tue, 18 Aug 2015 00:08:41 +0200 [thread overview]
Message-ID: <1439849321.22911.39.camel@redhat.com> (raw)
In-Reply-To: <20150807043040.GA18349@morn.localdomain>
Hi,
> > The command line I used is:
> >
> > x86_64-softmmu/qemu-system-x86_64 --enable-kvm \
> > -kernel /boot/vmlinuz-4.0.7-300.fc22.x86_64 \
> > -L pc-bios/optionrom/ \
> > -bios roms/seabios/out/bios.bin -nographic
>
> Thanks. One thing that immediately pops up is that even though
> "-nographic" is used, it looks like QEMU still emulates a VGA device
> and that device has an option rom that takes several milliseconds to
> init the display hardware. Adding "-device VGA,romfile=" to the qemu
> command line will further reduce the boot time by avoiding this
> hardware init delay.
Same goes for the NIC btw.
cheers,
Gerd
next prev parent reply other threads:[~2015-08-17 22:08 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-06 11:00 [Qemu-devel] QEMU fw_cfg DMA interface Marc Marí
2015-08-06 11:01 ` [Qemu-devel] [PATCH 0/5] " Marc Marí
2015-08-06 11:01 ` [Qemu-devel] [PATCH 1/5] fw_cfg: document fw_cfg_modify_iXX() update functions Marc Marí
2015-08-06 11:01 ` [Qemu-devel] [PATCH 2/5] fw_cfg DMA interface documentation Marc Marí
2015-08-06 14:20 ` Kevin O'Connor
2015-08-07 8:12 ` Marc Marí
2015-08-06 11:01 ` [Qemu-devel] [PATCH 3/5] Implement fw_cfg DMA interface Marc Marí
2015-08-06 14:47 ` Kevin O'Connor
2015-08-06 14:59 ` Marc Marí
2015-08-07 20:40 ` Kevin O'Connor
2015-08-07 22:58 ` Laszlo Ersek
2015-08-06 20:49 ` Laszlo Ersek
2015-08-06 21:11 ` Marc Marí
2015-08-06 21:32 ` Laszlo Ersek
2015-08-07 7:26 ` Marc Marí
2015-08-07 12:14 ` Eric Blake
2015-08-06 11:01 ` [Qemu-devel] [PATCH 4/5] Enable fw_cfg DMA interface for ARM Marc Marí
2015-08-06 11:01 ` [Qemu-devel] [PATCH 5/5] Enable fw_cfg DMA interface for x86 Marc Marí
2015-08-06 12:27 ` [Qemu-devel] QEMU fw_cfg DMA interface Stefan Hajnoczi
2015-08-06 12:37 ` Marc Marí
2015-08-06 12:40 ` Stefan Hajnoczi
2015-08-06 15:30 ` Kevin O'Connor
2015-08-06 15:53 ` Marc Marí
2015-08-07 4:30 ` Kevin O'Connor
2015-08-17 22:08 ` Gerd Hoffmann [this message]
-- strict thread matches above, loose matches on Subject: below --
2015-08-31 9:08 Marc Marí
2015-09-18 8:58 Marc Marí
2015-10-01 12:14 Marc Marí
2015-10-01 16:03 ` Eric Blake
2015-10-01 16:11 ` Eric Blake
2015-10-01 16:19 ` Laszlo Ersek
2015-10-01 16:17 ` Laszlo Ersek
2015-10-01 16:21 ` Eric Blake
2015-10-01 16:34 ` Laszlo Ersek
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