Re: [Qemu-devel] Isuue assiging devices using VFIO on x86

[Bhushan Bharat-R65777]

> -----Original Message-----
> From: Alex Williamson [mailto:address@hidden
> Sent: Tuesday, August 28, 2012 9:27 PM
> To: Bhushan Bharat-R65777
> Cc: address@hidden; Avi Kivity; address@hidden
> Subject: Re: Isuue assiging devices using VFIO on x86
> 
> On Tue, 2012-08-28 at 09:23 +0000, Bhushan Bharat-R65777 wrote:
> > Hi Alex,
> >
> > In my susyem I have following devices:
> >
> > I tried assigning a following PCI devices:
> > 00:03.0 Communication controller: Intel Corporation 4 Series Chipset HECI
> Controller (rev 03)
> > 00:03.2 IDE interface: Intel Corporation 4 Series Chipset PT IDER Controller
> (rev 03)
> > 00:03.3 Serial controller: Intel Corporation 4 Series Chipset Serial KT
> Controller (rev 03)
> >
> > and getting below error:
> >
> > ---------------
> > Command:
> > -------
> > qemu-system-x86_64 -enable-kvm  -nographic  -kernel 
> > /boot/vmlinuz-3.6.0-rc2+ -
> initrd /boot/initramfs-3.6.0-rc2+.img -append "root=/dev/sda1" -m 1024 -drive
> file=/home/kvmdev/debian_squeeze_amd64_standard.qcow2 -device vfio-
> pci,host=0000:00:03.0 -device vfio-pci,host=0000:00:03.2 -device vfio-
> pci,host=0000:00:03.3
> >
> > Error prints:
> > ----
> > qemu-system-x86_64: -device vfio-pci,host=0000:00:03.0: Warning, device
> 0000:00:03.0 does not support reset
> >
> > qemu-system-x86_64: -device vfio-pci,host=0000:00:03.0: VFIO 0000:00:03.0 
> > BAR
> 0 is too small to mmap, this may affect performance.
> >
> > qemu-system-x86_64: -device vfio-pci,host=0000:00:03.2: Warning, device
> 0000:00:03.2 does not support reset
> >
> > qemu-system-x86_64: -device vfio-pci,host=0000:00:03.3: Warning, device
> 0000:00:03.3 does not support reset
> >
> > qemu: hardware error: register_ioport_read: invalid opaque for address 0x3f6
> > CPU #0:
> > EAX=80000003 EBX=3ffe0e80 ECX=80000003 EDX=00000cfc
> > ESI=00002800 EDI=80002804 EBP=00006fc0 ESP=00006f38
> > EIP=3ffec005 EFL=00000086 [--S--P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
> > ES =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
> > CS =0008 00000000 ffffffff 00c09b00 DPL=0 CS32 [-RA]
> > SS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
> > DS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
> > FS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
> > GS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
> > LDT=0000 00000000 0000ffff 00008200 DPL=0 LDT
> > TR =0000 00000000 0000ffff 00008b00 DPL=0 TSS32-busy
> > GDT=     000fcd68 00000037
> > IDT=     000fdb60 00000000
> > CR0=00000011 CR2=00000000 CR3=00000000 CR4=00000000
> > DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
> DR3=0000000000000000
> > DR6=00000000ffff0ff0 DR7=0000000000000400
> > EFER=0000000000000000
> > FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
> > FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
> > FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
> > FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
> > FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
> > XMM00=00000000000000000000000000000000 
> > XMM01=00000000000000000000000000000000
> > XMM02=00000000000000000000000000000000 
> > XMM03=00000000000000000000000000000000
> > XMM04=00000000000000000000000000000000 
> > XMM05=00000000000000000000000000000000
> > XMM06=00000000000000000000000000000000 
> > XMM07=00000000000000000000000000000000
> > Aborted (core dumped)
> >
> > --------------------
> >
> > Linux: http://github.com/awilliam/linux-vfio.git next
> > Qemu: https://github.com/awilliam/qemu-vfio.git  iommu-group-vfio
> >
> > Any idea what's is the issue.
> 
> Please try the vfio-pci-for-qemu-1.2-v3 qemu-vfio.git tag, I'm not even
> sure what's in that old iommu-group-vfio branch.  Thanks,

Can you share the command to configure qemu?

Thanks
-Bharat

> 
> Alex
>