From: Avi Kivity <avi@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 10/10] Introduce MSI message sending interface that bypass IRQ routing.
Date: Sun, 09 Aug 2009 17:56:30 +0300 [thread overview]
Message-ID: <4A7EE39E.40809@redhat.com> (raw)
In-Reply-To: <1249821671-32356-11-git-send-email-gleb@redhat.com>
On 08/09/2009 03:41 PM, Gleb Natapov wrote:
> Sending of MSI using IRQ routing is an artificial concept and potentially
> big number of MSIs (2048 per device) make it also inefficient. This
> patch adds an interface to inject MSI messages from userspace to lapic
> logic directly. The patch also reduces the maximum number of IRQ routing
> entries to 128 since MSIs will no longer go there and 128 entries cover
> 5 ioapics and this ought to be enough for anybody.
>
In the future many MSIs will be triggered via irqfds, and those require
irq routing.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-08-09 14:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-09 12:41 [PATCH 00/10] make interrupt injection lockless (almost) Gleb Natapov
2009-08-09 12:41 ` [PATCH 01/10] Change irq routing table to use gsi indexed array Gleb Natapov
2009-08-09 14:25 ` Avi Kivity
2009-08-09 12:41 ` [PATCH 02/10] Move irq routing data structure to rcu locking Gleb Natapov
2009-08-09 12:41 ` [PATCH 03/10] Move irq ack notifier list to arch independent code Gleb Natapov
2009-08-09 12:41 ` [PATCH 04/10] Convert irq notifiers lists to RCU locking Gleb Natapov
2009-08-09 12:41 ` [PATCH 05/10] Protect irq_sources_bitmap by kvm->lock instead of kvm->irq_lock Gleb Natapov
2009-08-09 12:41 ` [PATCH 06/10] Move irq routing to its own locking Gleb Natapov
2009-08-09 14:52 ` Avi Kivity
2009-08-09 12:41 ` [PATCH 07/10] Move irq notifiers lists " Gleb Natapov
2009-08-09 14:52 ` Avi Kivity
2009-08-09 14:49 ` Gleb Natapov
2009-08-09 14:57 ` Avi Kivity
2009-08-09 12:41 ` [PATCH 08/10] Move IO APIC to its own lock Gleb Natapov
2009-08-09 14:54 ` Avi Kivity
2009-08-09 14:57 ` Gleb Natapov
2009-08-09 15:10 ` Avi Kivity
2009-08-09 15:09 ` Gleb Natapov
2009-08-09 12:41 ` [PATCH 09/10] Drop kvm->irq_lock lock Gleb Natapov
2009-08-09 12:41 ` [PATCH 10/10] Introduce MSI message sending interface that bypass IRQ routing Gleb Natapov
2009-08-09 14:56 ` Avi Kivity [this message]
2009-08-09 14:52 ` Gleb Natapov
2009-08-09 15:01 ` Avi Kivity
2009-08-09 15:07 ` Gleb Natapov
2009-08-09 15:14 ` Avi Kivity
2009-08-09 15:14 ` Gleb Natapov
2009-08-09 15:22 ` Avi Kivity
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