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Re: [Qemu-devel] [PATCH 1/2] Allow QEMUMachine to override reset sequenc
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 1/2] Allow QEMUMachine to override reset sequencing |
Date: |
Thu, 02 Aug 2012 17:17:27 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 |
Il 02/08/2012 05:50, Benjamin Herrenschmidt ha scritto:
>
>> > This sort of stuff is either
>> > (1) hard coded in a firmware/flashrom or (2) built dynamically in
>> > firmware. Let's not pretend like we're doing this because it's needed
>> > for real hardware.
> Doesn't matter, we do things like -kernel which means pre-loading the
> kernel from qemu, even on x86. That doesn't match real HW either, but
> it's convenient to have. But overall there are real HW reasons to
> control the reset as well so the hook makes sense both ways.
On x86 we do not pre-load the kernel. Neither the kernel/initramfs and
the option ROM that loads the kernel are written in memory, they are
passed to the guest via fw_cfg. Then the option ROM is loaded by the
BIOS, and loads the kernel/initramfs.
Paolo
[Qemu-devel] [PATCH 1/2] Allow QEMUMachine to override reset sequencing, David Gibson, 2012/08/01
Re: [Qemu-devel] [PATCH 1/2] Allow QEMUMachine to override reset sequencing, David Gibson, 2012/08/02
Re: [Qemu-devel] [PATCH 1/2] Allow QEMUMachine to override reset sequencing, Lluís Vilanova, 2012/08/02