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Created attachment 1386841[details]
cml to boot qemu-kvm
Description of problem:
When boot a guest specifying the option iommu_platform=on, virtio-scsi driver cannot be installed.
Version-Release number of selected component (if applicable):
kernel-3.10.0-837.el7.x86_64
qemu-kvm-rhev-2.10.0-18.el7
How reproducible:
100%
Steps to Reproduce:
1. Boot a guest specifying the option "iommu_platform=on"
-machine q35,kernel-irqchip=split \
-device intel-iommu,intremap=on,eim=on,device-iotlb=on \
-device pcie-root-port,id=pcie.0-root-port-3,slot=3,chassis=3,addr=0x3,bus=pcie.0 \
-device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pcie.0-root-port-3,addr=0x0,iommu_platform=on,ats=on \
-drive id=drive_image1,if=none,snapshot=off,aio=threads,cache=none,format=raw,file=/home/tests/diskfile/win2012r2.img,werror=stop,rerror=stop \
-device scsi-hd,id=image1,drive=drive_image1,bootindex=0 \
-drive id=drive_cd1,if=none,snapshot=off,aio=threads,cache=unsafe,media=cdrom,file=/home/kvm_autotest_root/iso/ISO/Win2012R2/en_windows_server_2012_r2_with_update_x64_dvd_6052708.iso \
-device ide-cd,id=cd1,drive=drive_cd1,bootindex=1,bus=ide.0,unit=0 \
-drive id=drive_winutils,if=none,snapshot=off,aio=threads,cache=unsafe,media=cdrom,file=/home/kvm_autotest_root/iso/windows/winutils.iso \
-device ide-cd,id=winutils,drive=drive_winutils,bootindex=2,bus=ide.1,unit=0 \
-drive id=drive_virtio,if=none,snapshot=off,aio=threads,cache=unsafe,media=cdrom,file=/home/kvm_autotest_root/iso/windows/virtio-win-1.9.4-2.el7.iso \
2. Load driver from virtio-win-1.9.4-2.el7.iso. Select vioscsi -> 2k12R2 -> amd64, then click OK. Get result that we couldn't find any drivers.
3. Remove the option "iommu_platform=on", then the driver could be installed successfully.
Actual results:
virtio-scsi driver cannot be installed.
Expected results:
virtio-scsi driver can be installed.
Additional info:
Created attachment 1386847[details]
Blue screen
BSOD occurs when try to boot the image with "iommu_platform=on". Before that, image could be booted successfully.
Hi Yan,
I tested this issue with virtio-win-prewhql-150 on win2012-r2 and win2016.
on win2016, cannot reproduce this issue.
on win2012-r2, also can reproduce this issue.
So could you help to confirm if the virtio-win for iommu feature only supported on win2016 and win10(guess from https://bugzilla.redhat.com/show_bug.cgi?id=1549587#c2)?
Thanks a lot~
Comment 12Yvugenfi@redhat.com
2018-04-17 10:57:29 UTC
(In reply to Peixiu Hou from comment #11)
> Hi Yan,
>
> I tested this issue with virtio-win-prewhql-150 on win2012-r2 and win2016.
>
> on win2016, cannot reproduce this issue.
> on win2012-r2, also can reproduce this issue.
>
> So could you help to confirm if the virtio-win for iommu feature only
> supported on win2016 and win10(guess from
> https://bugzilla.redhat.com/show_bug.cgi?id=1549587#c2)?
>
> Thanks a lot~
Hi,
Yes - it is supported only for Windows 10, Windows 2016 and up.
(In reply to Yan Vugenfirer from comment #12)
> (In reply to Peixiu Hou from comment #11)
> > Hi Yan,
> >
> > I tested this issue with virtio-win-prewhql-150 on win2012-r2 and win2016.
> >
> > on win2016, cannot reproduce this issue.
> > on win2012-r2, also can reproduce this issue.
> >
> > So could you help to confirm if the virtio-win for iommu feature only
> > supported on win2016 and win10(guess from
> > https://bugzilla.redhat.com/show_bug.cgi?id=1549587#c2)?
> >
> > Thanks a lot~
>
> Hi,
>
> Yes - it is supported only for Windows 10, Windows 2016 and up.
Thanks a lot~
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:3413
Created attachment 1386841 [details] cml to boot qemu-kvm Description of problem: When boot a guest specifying the option iommu_platform=on, virtio-scsi driver cannot be installed. Version-Release number of selected component (if applicable): kernel-3.10.0-837.el7.x86_64 qemu-kvm-rhev-2.10.0-18.el7 How reproducible: 100% Steps to Reproduce: 1. Boot a guest specifying the option "iommu_platform=on" -machine q35,kernel-irqchip=split \ -device intel-iommu,intremap=on,eim=on,device-iotlb=on \ -device pcie-root-port,id=pcie.0-root-port-3,slot=3,chassis=3,addr=0x3,bus=pcie.0 \ -device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pcie.0-root-port-3,addr=0x0,iommu_platform=on,ats=on \ -drive id=drive_image1,if=none,snapshot=off,aio=threads,cache=none,format=raw,file=/home/tests/diskfile/win2012r2.img,werror=stop,rerror=stop \ -device scsi-hd,id=image1,drive=drive_image1,bootindex=0 \ -drive id=drive_cd1,if=none,snapshot=off,aio=threads,cache=unsafe,media=cdrom,file=/home/kvm_autotest_root/iso/ISO/Win2012R2/en_windows_server_2012_r2_with_update_x64_dvd_6052708.iso \ -device ide-cd,id=cd1,drive=drive_cd1,bootindex=1,bus=ide.0,unit=0 \ -drive id=drive_winutils,if=none,snapshot=off,aio=threads,cache=unsafe,media=cdrom,file=/home/kvm_autotest_root/iso/windows/winutils.iso \ -device ide-cd,id=winutils,drive=drive_winutils,bootindex=2,bus=ide.1,unit=0 \ -drive id=drive_virtio,if=none,snapshot=off,aio=threads,cache=unsafe,media=cdrom,file=/home/kvm_autotest_root/iso/windows/virtio-win-1.9.4-2.el7.iso \ 2. Load driver from virtio-win-1.9.4-2.el7.iso. Select vioscsi -> 2k12R2 -> amd64, then click OK. Get result that we couldn't find any drivers. 3. Remove the option "iommu_platform=on", then the driver could be installed successfully. Actual results: virtio-scsi driver cannot be installed. Expected results: virtio-scsi driver can be installed. Additional info: