From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Vrabel <david.vrabel@citrix.com>
Subject: Re: [PATCH] xen/events: Always allocate legacy
 interrupts on PV guests
Date: Thu, 26 Nov 2015 18:22:27 +0000
Message-ID: <56574DE3.2040808__17513.030608143$1448562248$gmane$org@citrix.com>
References: <1448036704-18630-1-git-send-email-boris.ostrovsky@oracle.com>
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To: Boris Ostrovsky <boris.ostrovsky@oracle.com>, konrad.wilk@oracle.com, david.vrabel@citrix.com, linux@arm.linux.org.uk
Cc: jgross@suse.com, linux-kernel@vger.kernel.org, xen-devel@lists.xen.org, stefano.stabellini@citrix.com, vkuznets@redhat.com, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org
List-Id: xen-devel@lists.xenproject.org

On 20/11/15 16:25, Boris Ostrovsky wrote:
> After commit 8c058b0b9c34 ("x86/irq: Probe for PIC presence before
> allocating descs for legacy IRQs") early_irq_init() will no longer
> preallocate descriptors for legacy interrupts if PIC does not
> exist, which is the case for Xen PV guests.
> 
> Therefore we may need to allocate those descriptors ourselves.

Applied to for-linus-4.4, thanks.

> --- a/arch/arm64/include/asm/irq.h
> +++ b/arch/arm64/include/asm/irq.h
> @@ -7,4 +7,10 @@ struct pt_regs;
>  
>  extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
>  
> +#define NR_IRQS_LEGACY  0

I dropped this unnecessary #define.

David