From: IndrasenaReddy Gali <1851664@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1851664] Re: qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we attache 6 VF's to guest machine
Date: Thu, 07 Nov 2019 17:45:50 -0000 [thread overview]
Message-ID: <157314875078.3211.9859713905485218990.malone@gac.canonical.com> (raw)
In-Reply-To: 157313838504.19702.7205622932379991141.malonedeb@wampee.canonical.com
qemu-system-x86_64 -name guest=fedora24 -machine q35,accel=kvm,kernel-irqchip=split \
-enable-kvm \
-m 4G \
-smp 8,sockets=1,cores=8,threads=1 \
-device intel-iommu,intremap=on,caching-mode=on,aw-bits=48 \
-drive file=<OS_IMAGE_FILE>,format=raw \
-device ioh3420,id=pcie.1,chassis=1 \
-device virtio-net-pci,bus=pcie.1,disable-legacy=on,disable-modern=off,iommu_platform=on,ats=on,netdev=net0 \
-netdev user,id=net0,hostfwd=tcp::1111-:22\
-device vfio-pci,host=3f:02.1 \
-device vfio-pci,host=3f:02.2 \
-device vfio-pci,host=3f:02.3 \
-device vfio-pci,host=3f:02.4 \
-device vfio-pci,host=3d:02.4 \
-device vfio-pci,host=3d:02.5 \
-device vfio-pci,host=3d:02.6 \
-nographic
--
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https://bugs.launchpad.net/bugs/1851664
Title:
qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we attache 6 VF's
to guest machine
Status in QEMU:
Incomplete
Bug description:
We are trying to attach 6 VF's to the guest machine on 4.1.1 qemu emulator.
We are observing "VFIO_MAP_DMA : -28" error.
We are using w-bits=48 bits while lunching VM.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1851664/+subscriptions
next prev parent reply other threads:[~2019-11-07 18:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <157313838504.19702.7205622932379991141.malonedeb@wampee.canonical.com>
2019-11-07 16:37 ` [Bug 1851664] Re: qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we attache 6 VF's to guest machine Thomas Huth
2019-11-07 17:45 ` IndrasenaReddy Gali [this message]
2019-11-07 17:46 ` IndrasenaReddy Gali
2019-11-07 17:46 ` Alex Williamson
2019-11-08 15:48 ` IndrasenaReddy Gali
2020-01-08 4:17 ` Launchpad Bug Tracker
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