Hi Everyone, I very recently just upgraded to some new used hardware that finally supports IOMMU. I have a QEMU VM that I'm managing via libvirt and am trying to pass-through a secondary network card to it. When I do, I get the same type of error message as the gentleman in https://www.redhat.com/archives/vfio-users/2016-May/msg00088.html:
qemu-system-x86_64: vfio_dma_map(0x55824d01f300, 0xfeb80000, 0x20000, 0x7f84bb674000) = -14 (Bad address) qemu: hardware error: vfio: DMA mapping failed, unable to continue CPU #0: EAX=00000103 EBX=80003004 ECX=00000103 EDX=00000cfc ESI=00003000 EDI=00000000 EBP=00000038 ESP=00006d3c EIP=bffdf25d EFL=00000046 [---Z-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= 000f6658 00000037 IDT= 000f6696 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 CPU #1: EAX=00000000 EBX=00000000 ECX=00000000 EDX=000206c2 ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 00000000 0000ffff 00009300 CS =f000 ffff0000 0000ffff 00009b00 SS =0000 00000000 0000ffff 00009300 DS =0000 00000000 0000ffff 00009300 FS =0000 00000000 0000ffff 00009300 GS =0000 00000000 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 00000000 0000ffff IDT= 00000000 0000ffff CR0=60000010 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 Like him, we have similar software versions: # lsb_release -d Description: Ubuntu 14.04.4 LTS # uname -rs Linux 4.4.0-31-generic # cat /proc/cpuinfo | grep -m 1 "model name" model name : Intel(R) Xeon(R) CPU X5675 @ 3.07GHz # qemu-system-x86_64 --version QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.25), Copyright (c) 2003-2008 Fabrice Bellard # libvirtd --version libvirtd (libvirt) 1.2.2 I've tried it everything mentioned in that thread: playing with "pci" GRUB flag, a simple VM, and a Linux VM without any luck. The only thing unfortunately I cannot do is try out Fedora. I'm hoping this may be easier to troubleshoot since I'm passing through a basic NIC. Thanks!
_______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
