From: Avi Kivity <avi@redhat.com>
To: "Yang, Sheng" <sheng.yang@intel.com>
Cc: "Tian, Kevin" <kevin.tian@intel.com>,
"Han, Weidong" <weidong.han@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
Amit Shah <amit.shah@redhat.com>,
"benami@il.ibm.com" <benami@il.ibm.com>,
"muli@il.ibm.com" <muli@il.ibm.com>,
"Kay, Allen M" <allen.m.kay@intel.com>,
"Zhang, Xiantao" <xiantao.zhang@intel.com>
Subject: Re: Remaining passthrough/VT-d tasks list
Date: Sun, 05 Oct 2008 12:18:13 +0200 [thread overview]
Message-ID: <48E89465.4060500@redhat.com> (raw)
In-Reply-To: <200809281317.53842.sheng.yang@intel.com>
Yang, Sheng wrote:
>>
>> You're right, I didn't think it through.
>>
>> If there was a standard way to mask pci irqs, it might have worked, but
>> there isn't, unfortunately.
>>
>>
> What if we got a way to mask pci irqs? We also have to unmask pci irq when
> guest wrote EOI to vlapic(or at any other time). I think this still cause
> problem. The problem is, we don't know if guest would deassert the line.
> Maybe add some time-based detection here might work?
>
> And about the mask of pci irq, how about disable PCI device interrupt using
> Device Control Register bit 10? Not sure if it would affect the pending
> transaction, also not sure all device support this (though they should
> support).
>
I didn't know about this. I'll try to find a copy of the pci spec and
read up on it.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2008-10-05 10:19 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-24 6:15 Remaining passthrough/VT-d tasks list Han, Weidong
2008-09-24 6:31 ` Yang, Sheng
2008-09-24 6:58 ` Zhang, Xiantao
2008-09-24 7:41 ` Amit Shah
2008-09-24 7:51 ` Han, Weidong
2008-09-24 8:02 ` Amit Shah
2008-09-24 8:38 ` Han, Weidong
2008-09-24 8:49 ` Avi Kivity
2008-09-24 9:56 ` Amit Shah
2008-09-24 12:25 ` Han, Weidong
2008-09-24 8:46 ` Avi Kivity
2008-09-24 9:58 ` Amit Shah
2008-09-24 10:46 ` Avi Kivity
2008-09-24 14:46 ` Han, Weidong
2008-09-24 8:38 ` Avi Kivity
2008-09-24 8:46 ` Yang, Sheng
2008-09-27 9:15 ` Yang, Sheng
2008-09-27 9:49 ` Avi Kivity
2008-09-27 10:09 ` Jan Kiszka
2008-09-27 10:16 ` Avi Kivity
2008-09-28 6:03 ` Muli Ben-Yehuda
2008-09-28 1:48 ` Tian, Kevin
2008-09-28 2:03 ` Dong, Eddie
2008-09-28 2:29 ` Tian, Kevin
2008-09-28 4:22 ` Avi Kivity
2008-09-28 4:50 ` Tian, Kevin
2008-09-28 5:04 ` Avi Kivity
2008-09-28 5:17 ` Yang, Sheng
2008-10-05 10:18 ` Avi Kivity [this message]
2008-09-28 5:54 ` Yang, Sheng
2008-09-24 8:34 ` Avi Kivity
2008-09-24 8:42 ` Yang, Sheng
2008-09-24 8:53 ` Avi Kivity
2008-09-24 9:08 ` Yang, Sheng
2008-09-24 9:22 ` Avi Kivity
2008-09-24 9:43 ` Yang, Sheng
2008-09-24 9:51 ` Avi Kivity
2008-09-28 6:09 ` Yang, Sheng
2008-09-24 9:40 ` Amit Shah
2008-09-24 9:46 ` Avi Kivity
2008-09-24 15:39 ` Dong, Eddie
2008-09-27 10:11 ` Avi Kivity
2008-09-28 2:28 ` Dong, Eddie
2008-09-28 4:25 ` Avi Kivity
2008-09-28 5:54 ` Dong, Eddie
2008-09-24 8:39 ` Avi Kivity
2008-09-24 8:50 ` Han, Weidong
2008-09-24 9:12 ` Avi Kivity
2008-09-24 15:12 ` Anthony Liguori
2008-09-24 15:38 ` Avi Kivity
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