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Re: [Qemu-devel] [PATCH] target-arm: kvm: use KVM_SET_SREGS to set targe

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH] target-arm: kvm: use KVM_SET_SREGS to set target to Cortex A15
Date: Fri, 13 Jul 2012 09:06:16 +0100

On 13 July 2012 04:37, Rusty Russell <address@hidden> wrote:
> Recent kernels use this to set the cpu and features (currently, only
> the A15 is supported).
> Note that this causes the registers in the CPU to be initialized, so
> it's important that all CPUs are created first (they are, as it turns
> out).
> This code ignores errors, for backwards compatibility with older
> kernels.
> Signed-off-by: Rusty Russell <address@hidden>

I haven't actually been posting the ARM KVM patches to qemu-devel
thus far, so this patch is a bit of a non-sequitur for qemu-devel readers.
(We've been posting patches to kvmarm only, like the kernel patches.)

 * updates to qemu's kernel headers should be separate patches
and ideally the result of running the automatic 'update headers'
script. [I'm going to squash all the kernel header changes together
before we submit a patch series properly to qemu-devel, so patches
which combine header and code changes require me to untangle them]
 * any code which includes compatibility workarounds for earlier
versions of in-development kernel code should have a FIXME comment
so we can remember to undo the workaround before submitting.

-- PMM

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