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Re: [Qemu-devel] [PATCH v2 5/5] pc: pci-info add compat support

From: Laszlo Ersek
Subject: Re: [Qemu-devel] [PATCH v2 5/5] pc: pci-info add compat support
Date: Thu, 30 May 2013 18:32:19 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130513 Thunderbird/17.0.6

On 05/30/13 13:07, Michael S. Tsirkin wrote:

>  /* PC hardware initialisation */
>  static void pc_init1(MemoryRegion *system_memory,
> @@ -122,6 +122,7 @@ static void pc_init1(MemoryRegion *system_memory,
>      }
>      guest_info = pc_guest_info_init(below_4g_mem_size, above_4g_mem_size);
> +    guest_info->compat_v1_5 = guest_info_compat_v1_5;

I believe I can see the advantage of delaying this "compat_v1_5" until
init-done-notifier time: init code gradually building up / rewriting
guest_info doesn't have to tiptoe around conditions.

Style: would it be worth passing "guest_info_compat_v1_5" as a parameter
to pc_guest_info_init()? Currently you have an _init() function that
partially initializes the struct, and right after _init() returns you
fill in what's still missing form basic initialization.

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