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Re: [Qemu-ppc] [PATCH 6/8] spapr: move interrupt allocator to xics

From: Alexander Graf
Subject: Re: [Qemu-ppc] [PATCH 6/8] spapr: move interrupt allocator to xics
Date: Thu, 10 Apr 2014 15:26:11 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.4.0

On 10.04.14 15:24, Alexey Kardashevskiy wrote:
On 04/10/2014 10:51 PM, Alexander Graf wrote:
On 14.03.14 05:18, Alexey Kardashevskiy wrote:
The current allocator returns IRQ numbers from a pool and does not
support IRQs reuse in any form as it did not keep track of what it
previously returned, it only had the last returned IRQ.
However migration may change interrupts for devices depending on
their order in the command line.
Wtf? Nonono, this sounds very bogus and wrong. Migration shouldn't change

I put wrong commit message. By change I meant that the default state before
the destination guest started accepting migration is different from what
the destination guest became after migration finished. And migration cannot
avoid changing this default state.

Ok, why is the IRQ configuration different?


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