From: david.vrabel@citrix.com (David Vrabel)
To: linux-arm-kernel@lists.infradead.org
Subject: [Xen-devel] [PATCH] xen/events: Always allocate legacy interrupts on PV guests
Date: Thu, 26 Nov 2015 18:22:27 +0000 [thread overview]
Message-ID: <56574DE3.2040808@citrix.com> (raw)
In-Reply-To: <1448036704-18630-1-git-send-email-boris.ostrovsky@oracle.com>
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
WARNING: multiple messages have this Message-ID (diff)
From: David Vrabel <david.vrabel@citrix.com>
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>,
<tglx@linutronix.de>, <vkuznets@redhat.com>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [Xen-devel] [PATCH] xen/events: Always allocate legacy interrupts on PV guests
Date: Thu, 26 Nov 2015 18:22:27 +0000 [thread overview]
Message-ID: <56574DE3.2040808@citrix.com> (raw)
In-Reply-To: <1448036704-18630-1-git-send-email-boris.ostrovsky@oracle.com>
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
next prev parent reply other threads:[~2015-11-26 18:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 16:25 [PATCH] xen/events: Always allocate legacy interrupts on PV guests Boris Ostrovsky
2015-11-20 16:25 ` Boris Ostrovsky
2015-11-20 16:35 ` Stefano Stabellini
2015-11-20 16:35 ` Stefano Stabellini
2015-11-20 16:35 ` Stefano Stabellini
2015-11-24 14:36 ` Boris Ostrovsky
2015-11-24 14:36 ` Boris Ostrovsky
2015-11-24 14:36 ` Boris Ostrovsky
2015-11-26 18:22 ` David Vrabel
2015-11-26 18:22 ` David Vrabel [this message]
2015-11-26 18:22 ` [Xen-devel] " David Vrabel
-- strict thread matches above, loose matches on Subject: below --
2015-11-17 15:36 Boris Ostrovsky
2015-11-18 11:16 ` [Xen-devel] " Vitaly Kuznetsov
2015-11-18 14:03 ` Boris Ostrovsky
2015-11-18 14:28 ` Vitaly Kuznetsov
2015-11-18 15:00 ` Boris Ostrovsky
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