From: Dana Goyette <DanaGoyette@gmail.com>
To: kvm@vger.kernel.org
Subject: genirq: Flags mismatch irq 17. 00000000 (vfio-intx(0000:07:04.0)) vs. 00000000 (vfio-intx(0000:01:00.1))
Date: Fri, 10 Jan 2014 08:23:16 -0800 [thread overview]
Message-ID: <lap6p9$r2f$1@ger.gmane.org> (raw)
I'm using the SuperMicro X10SAT, kernel 3.13-rc5, with ACS override on
Intel root ports.
I'm trying to pass several devices to the same guest:
01:00.0 -- [1002:68be] Radeon HD 5750
01:00.1 -- [1002:aa58] HDMI Audio (not really needed)
07:04.0 -- [13f6:8788] Xonar D1/DX sound card, behind PEX8112
09:00.0 -- [1912:0014] Renesas uPD720201 (USB 3.0)
When trying to start qemu with various combinations of those devices:
vfio: Error: Failed to setup INTx fd: Device or resource busy
Sound card conflicts with HDMI audio:
genirq: Flags mismatch irq 17.
00000000 (vfio-intx(0000:07:04.0)) vs.
00000000 (vfio-intx(0000:01:00.1))
USB controller conflicts with video card:
genirq: Flags mismatch irq 16.
00000000 (vfio-intx(0000:09:00.0)) vs.
00000000 (vfio-intx(0000:01:00.0))
On the ArchLinux forums, I was told that this means each device wants
the interrupt line to itself.
Oddly, the host locks up if I launch Xorg with 'radeon' and
'snd-virtuoso' both loaded. (Primary video is the Intel graphics.)
These devices all work fine together using pci-assign, but pci-assign
requires ejecting the Radeon before VM shutdown.
VFIO allows me to start the VM if I forward only the sound card and the
video card, but I really need the USB controller, as well.
What can I do to forward those three devices via VFIO?
next reply other threads:[~2014-01-10 16:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-10 16:23 Dana Goyette [this message]
2014-01-10 17:33 ` genirq: Flags mismatch irq 17. 00000000 (vfio-intx(0000:07:04.0)) vs. 00000000 (vfio-intx(0000:01:00.1)) Alex Williamson
2014-01-10 20:18 ` Dana Goyette
2014-01-10 21:12 ` Alex Williamson
2014-01-10 22:45 ` Dana Goyette
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