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Re: [Qemu-ppc] [Qemu-devel] [PATCH] ppcr: Avoid decrementer related kvm

From: Scott Wood
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH] ppcr: Avoid decrementer related kvm exits
Date: Tue, 25 Oct 2011 14:38:34 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2

On 10/14/2011 01:44 AM, Alexander Graf wrote:
> Wouldn't a simple
> if (kvm_enabled()) {
>     return;
> }
> in the beginning of the function make more sense? There's no code connecting 
> the in-qemu and the in-kvm decrementors atm, so any logic applying to the 
> in-qemu one is moot for kvm.

On book3e at least, we can use sregs to set the decrementer, and we
probably want this to happen on reset.


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