From: "Yang, Sheng" <sheng.yang@intel.com>
To: gg@seh.de
Cc: kronos.it@gmail.com, weidong.han@intel.com, kvm@vger.kernel.org
Subject: Re: Test with VT-d patches
Date: Wed, 3 Sep 2008 08:57:20 +0800 [thread overview]
Message-ID: <200809030857.20904.sheng.yang@intel.com> (raw)
In-Reply-To: <4026910.240961220380805962.JavaMail.servlet@kundenserver>
On Wednesday 03 September 2008 02:40:06 gg@seh.de wrote:
> Hi,
>
> >On Tue, Sep 2, 2008 at 4:17 PM, <gg@seh.de> wrote:
> >> Hi,
> >>
> >> here comes a small part of the dmesg output. Qemu/KVM produces now a CPU
> >
> >usage
> >
> >> of about 90%.
> >>
> >>
> >> Sep 2 11:27:35 ubuntu klogd: [ 335.057707] ------------[ cut here
> >
> >]------------
> >
> >> Sep 2 11:27:35 ubuntu klogd: [ 335.057711] WARNING: at
> >
> >kernel/irq/manage.c:180 __enable_irq+0x34/0x80()
> >
> >> Sep 2 11:27:35 ubuntu klogd: [ 335.057713] Unbalanced enable for IRQ
> >> 21
> >
> >[...]
> >
> >> This messages comes endless.
> >> Something with IRQs?
> >
> >Hum, seems that interrupt has already been enabled... did you load the
> >driver for the NIC in the host? With pass-through the device is
> >"owned" by the guest.
>
> No.
> The driver was not loaded.
> It is not possible to start qemu with a pci-device used by the host.
> (I try this with the second network device.)
>
> Can this interrupt be shared with an other IRQ?
Oh, no, not currently...
The device's IRQ should not be shared with other, we haven't implement shared
IRQ logic, but soon.
--
regards
Yang, Sheng
>
> Gregor
next prev parent reply other threads:[~2008-09-03 0:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-02 18:40 Test with VT-d patches gg
2008-09-03 0:57 ` Yang, Sheng [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-09-04 13:48 gg
2008-09-04 8:58 gg
2008-09-04 9:12 ` Han, Weidong
2008-09-04 9:33 ` Yang, Sheng
[not found] <22586672.111841220431056001.JavaMail.servlet@kundenserver>
2008-09-03 8:56 ` Yang, Sheng
2008-09-03 9:02 ` Han, Weidong
2008-09-03 9:02 ` Amit Shah
[not found] <20301128.193551220365059586.JavaMail.servlet@kundenserver>
2008-09-02 14:36 ` Luca Tettamanti
2008-09-03 3:28 ` Han, Weidong
2008-09-02 8:44 gg
2008-09-02 11:34 ` Yang, Sheng
2008-09-02 13:37 ` Han, Weidong
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