From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: linux-kernel@vger.kernel.org,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: xen-devel@lists.xensource.com,
Jeremy Fitzhardinge <jeremy@goop.org>,
Konrad Rzeszutek Wilk <konrad@kernel.org>
Subject: [PATCH] Fix when booting Xen+Linux under QEMU.
Date: Thu, 9 Dec 2010 16:01:35 -0500 [thread overview]
Message-ID: <1291928497-5599-1-git-send-email-konrad.wilk@oracle.com> (raw)
Please take a look. The first patch just cleans up the find_unbound_irq
so it is easier to understand what it does.
The second patch hardness the Xen IRQ (event channels) allocation finder
if you try to boot a minimalistic 32-bit Linux kernel along with a
Xen hypervisor under QEMU.
We end up with a weird scenario where the nr_irq_gsi was greater than nr_irq
by 16. This code hardness it by pointing out the issue to the user and tries
to continue - BUT this might impact the PCI device allocation.
Tested also on normal machine with no regressions found.
next reply other threads:[~2010-12-09 21:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-09 21:01 Konrad Rzeszutek Wilk [this message]
2010-12-09 21:01 ` [PATCH 1/2] xen/irq: Cleanup the find_unbound_irq Konrad Rzeszutek Wilk
2010-12-09 21:01 ` [PATCH 2/2] xen/irq: Don't fall over when nr_irqs_gsi > nr_irqs Konrad Rzeszutek Wilk
2010-12-09 21:12 ` [PATCH] Fix when booting Xen+Linux under QEMU Jeremy Fitzhardinge
2010-12-10 3:55 ` Konrad Rzeszutek Wilk
2010-12-10 13:02 ` Stefano Stabellini
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