linux-kernel - Re: [PATCH] xen/events: Always allocate legacy interrupts on PV guests

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Message-ID: <564B49E6.80408@citrix.com>
Date:	Tue, 17 Nov 2015 15:38:14 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	<konrad.wilk@...cle.com>
CC:	<xen-devel@...ts.xen.org>, <linux-kernel@...r.kernel.org>,
	<jgross@...e.com>, <tglx@...utronix.de>
Subject: Re: [PATCH] xen/events: Always allocate legacy interrupts on PV guests

On 17/11/15 15:36, 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 PIT does not
> exist.
> 
> Therefore we need to allocate those descriptors for PV guests
> ourselves.
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
> Suggested-by: Thomas Gleixner <tglx@...utronix.de>

Reviewed-by: David Vrabel <david.vrabel@...rix.com>

David
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