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Re: [Qemu-devel] [PATCH 0/6] Fix -kernel with SeaBIOS v2

From: Christoph Hellwig
Subject: Re: [Qemu-devel] [PATCH 0/6] Fix -kernel with SeaBIOS v2
Date: Mon, 30 Nov 2009 19:50:28 +0100
User-agent: Mutt/1.3.28i

On Thu, Nov 26, 2009 at 01:24:22PM +0100, Alexander Graf wrote:
> Hm - maybe worth a try to give it a -L to the source pc-bios directory
> anyways.

Doesn't change a thing.

> Sounds like your guest kernel is trying to access an x86_64 register?
> You can of cause try insmod'ing kvm.ko with ignore_msrs=1. You hopefully
> don't need syscalls until you get into user space.

The option doesn't exist yet in 2.6.31 which I'm running on this box
because 2.6.32-rc has massive regressions for my workload.  I booted
into it again anyway to test the option - and interestingly enough
qemu with -enable-kvm boots just fine even without ignore_msrs=1.

Looks like the problem only happens with older kernels.

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