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Re: [Qemu-ppc] [Qemu-devel] [PATCH 05/17] pseries: savevm support for XI

From: Paolo Bonzini
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH 05/17] pseries: savevm support for XICS interrupt controller
Date: Mon, 15 Jul 2013 15:05:59 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6

Il 09/07/2013 05:37, Alexey Kardashevskiy ha scritto:
> btw xics-kvm does not introduce new members but does have very different
> .pre_save and .post_load. This actually was the whole point of splitting
> xics into xics and xics-kvm. I cannot see how I can fix it without hacks.
> Property's can be inherited from a parent class (?) but VMStateDescription
> cannot.

The vmstate's pre_save and post_load functions can dispatch to a method
in the subclass.  Again, i8259 does exactly what you want:

static void pic_dispatch_pre_save(void *opaque)
    PICCommonState *s = opaque;
    PICCommonClass *info = PIC_COMMON_GET_CLASS(s);

    if (info->pre_save) {


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