Did anyone ever find a solution? I am getting the same error as well on a brand new VM. Just getting it to to install Windows 10 required me enabling SeaBIOS, setting DVD drive to SATA, however while running through the windows install I get the below.
sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
char device redirected to /dev/pts/3 (label charserial0)
qxl_send_events: spice-server bug: guest stopped, ignoring
KVM internal error. Suberror: 3
extra data[0]: 0x000000008000002f
extra data[1]: 0x0000000000000020
extra data[2]: 0x0000000000000d82
extra data[3]: 0x0000000000000005
RAX=0000000000000000 RBX=0000000000000000 RCX=0000000040000070 RDX=0000000000000000
RSI=0000000000000000 RDI=ffffe00063715040 RBP=ffffd0007c575a10 RSP=ffffd0007c575970
R8 =0000000000000064 R9 =0000000000000020 R10=0000000000000001 R11=00000000000000cf
R12=0000000000000000 R13=0000000000000001 R14=0000000000000000 R15=ffffe00063715140
RIP=fffff8036a55a33c RFL=00000046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA]
CS =0010 0000000000000000 00000000 00209b00 DPL=0 CS64 [-RA]
SS =0000 0000000000000000 ffffffff 00c00000
DS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA]
FS =0053 000000009e64c000 00007c00 0040f300 DPL=3 DS [-WA]
GS =002b ffffd0007c3e0000 ffffffff 00c0f300 DPL=3 DS [-WA]
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 ffffd0007c3e6b40 00000067 00008b00 DPL=0 TSS64-busy
GDT= ffffd0007c3ed8c0 0000006f
IDT= ffffd0007c3ed930 00000fff
CR0=80050031 CR2=ffffb0010781e408 CR3=00000000001aa000 CR4=001106f8
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000d01
Code=25 88 61 00 00 b9 70 00 00 40 0f ba 32 00 72 06 33 c0 8b d0 <0f> 30 5a 58 59 c3 cc cc cc cc cc cc 0f 1f 84 00 00 00 00 00 48 81 ec 38 01 00 00 48 8d 84