qemu error

qemu report when trying to use both 9600 and gtx 680 in the same vm:

start with:

sudo qemu-system-x86_64 -enable-kvm -M q35 -m 14096 -cpu core2duo,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff,hv_vendor_id=deadbeef \
-smp 8,sockets=2,cores=2,threads=2 \
-device ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
-device vfio-pci,host=04:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on,romfile=/vm/9600GT.rom \
-device vfio-pci,host=05:00.0,bus=root.1,addr=01.0,multifunction=on,x-vga=on,romfile=/vm/GTX680.rom \
...




emulation failure
EAX=000041e0 EBX=000000b5 ECX=00000000 EDX=00000000
ESI=00000000 EDI=00000002 EBP=00000000 ESP=0000fffc
EIP=0004e800 EFL=00010087 [--S--PC] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 00000000 ffffffff 00809300
CS =5180 00051800 ffffffff 00809b00
SS =0000 00000000 ffffffff 00809300
DS =0000 00000000 ffffffff 00809300
FS =0000 00000000 ffffffff 00809300
GS =0000 00000000 ffffffff 00809300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT=     000f6a80 00000037
IDT=     00000000 000003ff
CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000000
Code=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <ff> ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff