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Re: [coreboot] [Qemu-devel] Release plan for 0.12.0
From: |
Patrick Georgi |
Subject: |
Re: [coreboot] [Qemu-devel] Release plan for 0.12.0 |
Date: |
Sun, 04 Oct 2009 21:49:19 +0200 |
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
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, (continued)
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Patrick Georgi, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Anthony Liguori, 2009/10/04
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Stefan Reinauer, 2009/10/04
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Anthony Liguori, 2009/10/05
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Carl-Daniel Hailfinger, 2009/10/05
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Anthony Liguori, 2009/10/05
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Carl-Daniel Hailfinger, 2009/10/05
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0,
Patrick Georgi <=
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Anthony Liguori, 2009/10/05
- Re: [Qemu-devel] Release plan for 0.12.0, Gleb Natapov, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Peter Stuge, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, ron minnich, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Gleb Natapov, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Peter Stuge, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Kevin O'Connor, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Gleb Natapov, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Jordan Justen, 2009/10/03
- Re: [coreboot] [Qemu-devel] Release plan for 0.12.0, Stefan Reinauer, 2009/10/03