From: Patrick Georgi <patrick@georgi-clan.de>
To: Anthony Liguori <aliguori@us.ibm.com>
Cc: Coreboot <coreboot@coreboot.org>,
stepan@coresystems.de,
Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>,
qemu-devel@nongnu.org, ron minnich <rminnich@gmail.com>,
Jordan Justen <jljusten@gmail.com>
Subject: Re: [coreboot] [Qemu-devel] Release plan for 0.12.0
Date: Sun, 04 Oct 2009 21:49:19 +0200 [thread overview]
Message-ID: <1254685759.4077.104.camel@tetris> (raw)
In-Reply-To: <4AC8F80C.2050702@us.ibm.com>
Am Sonntag, den 04.10.2009, 14:31 -0500 schrieb Anthony Liguori:
> I don't know enough about EFI, but my concern is that down the road,
> hardware devices will start to exist that require EFI because they
> implement EFI modules and not legacy option ROMs. In order to support
> PCI passthrough of such devices, we will need to provide an EFI capable
> firmware.
Why? They're initialized at boot time (by the host's EFI firmware, if
necessary), and are usable by the OS then.
Look at OpenFirmware, the drivers initialize the hardware and provide
just enough support to be able to start an operating system, but as soon
as the operating system runs, it takes over as much as possible, as
quickly as possible.
For good reasons, as external drivers (no matter if OF or EFI) impose
the same flaw as ACPI: Hardware state changes outside the control of the
operating system.
Beyond boot loaders and toy kernels, firmware level drivers hurt more
than they help. The world changed since the invention of BIOS in CP/M.
Regards,
Patrick Georgi
next prev parent reply other threads:[~2009-10-04 19:49 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-29 23:54 [Qemu-devel] Release plan for 0.12.0 Anthony Liguori
2009-09-30 0:20 ` [Qemu-devel] " Dustin Kirkland
2009-09-30 2:18 ` Anthony Liguori
2009-09-30 2:28 ` [Qemu-devel] " Isaku Yamahata
2009-09-30 13:03 ` Anthony Liguori
2009-09-30 13:43 ` Michael S. Tsirkin
2009-09-30 5:17 ` [Qemu-devel] " Amit Shah
2009-09-30 13:04 ` Anthony Liguori
2009-09-30 13:37 ` Amit Shah
2009-09-30 14:47 ` Anthony Liguori
2009-09-30 14:50 ` Amit Shah
2009-09-30 6:41 ` [Qemu-devel] " Avi Kivity
2009-09-30 13:05 ` Anthony Liguori
2009-10-01 21:13 ` Luiz Capitulino
2009-10-03 10:04 ` Avi Kivity
2009-10-05 12:43 ` Luiz Capitulino
2009-10-05 13:52 ` Avi Kivity
2009-09-30 13:31 ` Luiz Capitulino
2009-09-30 8:53 ` Michael Tokarev
2009-09-30 9:01 ` Avi Kivity
2009-09-30 9:31 ` Carl-Daniel Hailfinger
2009-09-30 13:07 ` Anthony Liguori
2009-09-30 15:59 ` Carl-Daniel Hailfinger
2009-09-30 19:25 ` Blue Swirl
2009-09-30 13:30 ` Luiz Capitulino
2009-09-30 14:45 ` Anthony Liguori
2009-09-30 15:03 ` Fred Leeflang
2009-09-30 15:26 ` Luiz Capitulino
2009-09-30 19:28 ` Gerd Hoffmann
2009-10-01 1:55 ` Natalia Portillo
2009-10-01 8:07 ` Carl-Daniel Hailfinger
2009-10-01 21:02 ` Jordan Justen
2009-10-02 4:38 ` Natalia Portillo
2009-10-02 5:37 ` Jordan Justen
2009-10-02 22:33 ` Carl-Daniel Hailfinger
2009-10-01 12:45 ` Anthony Liguori
2009-10-01 21:10 ` Jordan Justen
2009-10-01 21:23 ` Anthony Liguori
2009-10-02 0:41 ` Jordan Justen
2009-10-02 13:29 ` Anthony Liguori
2009-10-02 16:58 ` Jordan Justen
2009-10-02 18:45 ` Carl-Daniel Hailfinger
2009-10-02 18:53 ` Anthony Liguori
2009-10-02 21:39 ` Carl-Daniel Hailfinger
2009-10-02 22:28 ` Jordan Justen
2009-10-02 23:05 ` Carl-Daniel Hailfinger
2009-10-03 0:32 ` Jordan Justen
2009-10-03 17:30 ` [coreboot] " Peter Stuge
2009-10-03 21:49 ` Jordan Justen
2009-10-03 21:58 ` Patrick Georgi
2009-10-04 19:31 ` Anthony Liguori
2009-10-04 19:39 ` Stefan Reinauer
2009-10-05 13:03 ` Anthony Liguori
2009-10-05 13:23 ` Carl-Daniel Hailfinger
2009-10-05 13:51 ` Anthony Liguori
2009-10-05 14:43 ` Carl-Daniel Hailfinger
2009-10-04 19:49 ` Patrick Georgi [this message]
2009-10-05 13:07 ` Anthony Liguori
2009-10-03 22:02 ` Stefan Reinauer
2009-10-03 22:40 ` Jordan Justen
2009-10-03 23:03 ` Stefan Reinauer
2009-10-03 23:52 ` Jordan Justen
2009-10-03 15:08 ` Gleb Natapov
2009-10-03 17:32 ` [coreboot] " Peter Stuge
2009-10-03 17:40 ` ron minnich
2009-10-03 18:16 ` Gleb Natapov
2009-10-03 18:30 ` Peter Stuge
2009-10-03 19:09 ` Kevin O'Connor
2009-10-03 19:09 ` Gleb Natapov
2009-10-03 22:13 ` Jordan Justen
2009-10-03 22:19 ` Patrick Georgi
2009-10-03 23:04 ` Jordan Justen
2009-10-04 19:35 ` Anthony Liguori
2009-10-04 4:10 ` Natalia Portillo
2009-10-04 11:16 ` Carl-Daniel Hailfinger
2009-10-04 16:06 ` Natalia Portillo
2009-10-05 0:29 ` Carl-Daniel Hailfinger
2009-10-03 22:46 ` Stefan Reinauer
[not found] ` <CB4CCBB6-0EE4-4883-AA4D-2151189C7977@claunia.com>
[not found] ` <2a50f7880910031701s52c901d8u2dfb956f595eeedf@mail.gmail.com>
2009-10-04 3:55 ` Natalia Portillo
2009-10-05 14:08 ` Lennart Sorensen
2009-10-02 20:57 ` Jordan Justen
2009-10-02 21:37 ` Anthony Liguori
2009-10-02 22:19 ` Carl-Daniel Hailfinger
2009-10-02 4:55 ` Natalia Portillo
2009-10-01 20:50 ` Stuart Brady
2009-10-02 4:51 ` Natalia Portillo
2009-10-02 19:07 ` Stuart Brady
2009-10-02 20:21 ` Natalia Portillo
2009-10-01 18:45 ` Stefan Weil
2009-10-01 19:02 ` Anthony Liguori
2009-10-01 19:18 ` Stefan Weil
2009-10-03 4:28 ` TAKEDA, toshiya
2009-10-08 13:55 ` Jens Osterkamp
2009-10-08 14:21 ` Anthony Liguori
2009-10-14 13:09 ` Arnd Bergmann
2009-10-14 13:53 ` Anthony Liguori
2009-10-14 14:01 ` Michael S. Tsirkin
2009-10-14 14:04 ` Michael S. Tsirkin
2009-10-14 13:21 ` [Qemu-devel] " Michael S. Tsirkin
2009-10-14 14:17 ` Anthony Liguori
2009-10-14 14:24 ` Michael S. Tsirkin
2009-10-14 15:19 ` Jamie Lokier
2009-10-14 15:50 ` Michael S. Tsirkin
2009-10-14 21:10 ` Sridhar Samudrala
2009-10-14 22:53 ` Raw vs. tap (was: Re: [Qemu-devel] Re: Release plan for 0.12.0) Anthony Liguori
2009-10-15 6:36 ` Mark McLoughlin
2009-10-15 7:56 ` Michael S. Tsirkin
2009-10-15 13:32 ` [Qemu-devel] Re: Raw vs. tap Anthony Liguori
2009-10-15 15:04 ` Michael S. Tsirkin
2009-10-15 15:18 ` Anthony Liguori
2009-10-15 15:48 ` Michael S. Tsirkin
2009-10-15 18:37 ` Anthony Liguori
2009-10-15 22:08 ` Michael S. Tsirkin
2009-10-18 10:05 ` Michael S. Tsirkin
2009-10-15 7:51 ` [Qemu-devel] Re: Release plan for 0.12.0 Michael S. Tsirkin
2009-10-20 6:33 ` Takahiro Hirofuchi
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