From: GaoYi <gaoyi709@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] PCI device assign problems!
Date: Mon, 4 Mar 2013 18:13:25 +0800 [thread overview]
Message-ID: <CABurPedmaVfmNkhWJGqb=0KQSduYZNn08MrNBnn5A1so549Gdw@mail.gmail.com> (raw)
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Hi,
I am trying to run a PCI card as a pass-throughed device. The PCI driver
works well on physical PC but failed on a full-virtualized PC. The KVM
confiuration is OK as a pass-throughed network card works. I debuged the
PCI driver and found that the some registers of this PCI card should be
filled with the physical address of DMA regions. However, the PCI card can
only get the virtualized physical address.
So for a PCI device, it cannot be passthroughed if it requires some
physical address to be filled into some registers, right? If it is so, how
to make it work as a passthroughed device?
Appreciated if someone can provide some help.
Yi
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next reply other threads:[~2013-03-04 10:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-04 10:13 GaoYi [this message]
2013-03-04 15:23 ` [Qemu-devel] PCI device assign problems! Alex Williamson
[not found] ` <CABurPefxNV7r3uUQUwS8d=73Gnf=6Ff=c8ZUnzyV5Drn2MPScA@mail.gmail.com>
2013-03-04 23:46 ` Alex Williamson
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