linux-kernel - Re: [kvm-devel] [PATCH 10/13] KVM: Wire up hypercall handlers to a central arch-independent location

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Date:	Thu, 22 Feb 2007 11:22:28 +0100
From:	"Joerg Roedel" <joerg.roedel@....com>
To:	"Dor Laor" <dor.laor@...ranet.com>
cc:	"Avi Kivity" <avi@...ranet.com>, "Pavel Machek" <pavel@....cz>,
	kvm-devel@...ts.sourceforge.net, akpm@...l.org,
	linux-kernel@...r.kernel.org
Subject: Re: [kvm-devel] [PATCH 10/13] KVM: Wire up hypercall handlers
 to a central arch-independent location

On Thu, Feb 22, 2007 at 02:17:54AM -0800, Dor Laor wrote:
> I have Ingo's network PV hypercalls to commit in my piplien.
> Till then we can just add the test hypercall:
> 	case __NR_hypercall_test:
> 		printk(KERN_DEBUG "%s __NR_hypercall_test\n",
> __FUNCTION__);
> 		ret = 0x5a5a;
> 		break;
> 	default:
> 		BUG();

Is it a good idea to call BUG() on an undefined hypercall? I assume its
better to inform the guest that is has issued an illegal call...

Joerg

-- 
Joerg Roedel
Operating System Research Center
AMD Saxony LLC & Co. KG


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