linux-kernel - Re: [Xen-devel] [PATCH] xen/x86: actually allocate legacy interrupts on PV guests

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Date:	Wed, 27 Apr 2016 10:03:20 -0400
From:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:	David Vrabel <david.vrabel@...rix.com>,
	Juergen Gross <jgross@...e.com>,
	Stefano Stabellini <sstabellini@...nel.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org
Subject: Re: [Xen-devel] [PATCH] xen/x86: actually allocate legacy interrupts
 on PV guests

On 04/27/2016 09:40 AM, David Vrabel wrote:
> On 27/04/16 14:38, Boris Ostrovsky wrote:
>> int xen_nr_legacy_irqs()
>> {
>>      if (xen_hvm_domain())
>>          return nr_legacy_irqs();
>>      if (xen_initial_domain())
>>          return NR_IRQS_LEGACY;
>>      return 0;
>> }
> Yeah, if that does the right thing...

I think it will break xen_allocate_irq_gsi() again, unless we check for 
HVM domain explicitly. Which would be ugly.

-boris