Re: [Qemu-ppc] [Qemu-devel] [PATCH 3/7] pseries: Use new method to correct reset sequence

[Andreas Färber]

Am 10.09.2012 08:38, schrieb David Gibson:
> A number of things need to occur during reset of the PAPR
> paravirtualized platform in a specific order.  For example, the hash
> table needs to be cleared before the CPUs are reset, so that they
> initialize their register state correctly, and the CPUs need to have
> their main reset called before we set up the entry point state on the
> boot cpu.  We also need to have the main qdev reset happen before the
> creation and installation of the device tree for the new boot, because
> we need the state of the devices settled to correctly construct the
> device tree.
> 
> We currently do the pseries once-per-reset initializations done from a
> reset handler.  However we can't adequately control when this handler
> is called during the reset - in particular we can't guarantee it
> happens after all the qdev resets (since qdevs might be registered
> after the machine init function has executed).
> 
> This patch uses the new QEMUMachine reset method to to fix this
> problem, ensuring the various order dependent reset steps happen in
> the correct order.
> 
> Signed-off-by: David Gibson <address@hidden>

Reviewed-by: Andreas Färber <address@hidden>

Andreas

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