From: Gerd Hoffmann <kraxel@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: Avi Kivity <avi@redhat.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 2/2] Route IOAPIC interrupts via ISA bus
Date: Thu, 27 Aug 2009 09:40:06 +0200 [thread overview]
Message-ID: <4A963856.2040301@redhat.com> (raw)
In-Reply-To: <20090826190944.GD11762@redhat.com>
On 08/26/09 21:09, Gleb Natapov wrote:
> On Wed, Aug 26, 2009 at 06:30:54PM +0200, Gerd Hoffmann wrote:
>> Right now we have IRQs 5,10,11 for PCI. Having one more IRQ (so we
>> have one for each link) would be useful IMHO. eight links + eight
>> irqs would be even more useful. What needs to be done for that?
>>
> Current code uses piix3 irq router to route pci interrupts to pic _and_
> ioapic and piix3 irq router supports only 16 interrupts.
That means? We could add four more PCI links which have IRQs routed
through another IRQ router chip and link them to ioapic lines 17-23 that
way? Or does it mean we must emulate a more recent chipset?
cheers,
Gerd
next prev parent reply other threads:[~2009-08-27 7:40 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-09 16:44 [Qemu-devel] [PATCH 0/2] Disentagle ISA IRQs Avi Kivity
2009-08-09 16:44 ` [Qemu-devel] [PATCH 1/2] Route PC irqs to ISA bus instead of i8259 directly Avi Kivity
2009-08-10 8:34 ` Gerd Hoffmann
2009-08-10 8:46 ` Avi Kivity
2009-08-10 9:04 ` Alexander Graf
2009-08-10 9:43 ` Avi Kivity
2009-08-10 9:45 ` Stefan Assmann
2009-08-10 9:52 ` Avi Kivity
2009-08-10 13:20 ` Olaf Dabrunz
2009-08-10 13:14 ` Olaf Dabrunz
2009-08-09 16:44 ` [Qemu-devel] [PATCH 2/2] Route IOAPIC interrupts via ISA bus Avi Kivity
2009-08-10 8:38 ` Gerd Hoffmann
2009-08-26 16:03 ` Gerd Hoffmann
2009-08-26 16:06 ` Avi Kivity
2009-08-26 16:30 ` Gerd Hoffmann
2009-08-26 19:09 ` Gleb Natapov
2009-08-27 7:40 ` Gerd Hoffmann [this message]
2009-08-27 7:57 ` Gleb Natapov
2009-08-27 8:18 ` Jamie Lokier
2009-08-27 8:24 ` Gleb Natapov
2009-08-27 8:55 ` Gerd Hoffmann
2009-08-27 10:35 ` Isaku Yamahata
2009-08-27 21:07 ` [Qemu-devel] " Bjørn Mork
2009-08-27 4:53 ` [Qemu-devel] " Avi Kivity
2009-08-27 7:35 ` Gerd Hoffmann
2009-08-27 7:57 ` Avi Kivity
2009-08-27 8:13 ` Gerd Hoffmann
2009-08-27 8:26 ` Avi Kivity
2009-08-28 2:20 ` Beth Kon
2009-08-29 17:47 ` Avi Kivity
2009-08-30 2:09 ` Beth Kon
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