Date: Tue, 26 Feb 2019 15:32:00 -0600 From: Kevin Day <toasty@dragondata.com> To: freebsd-virtualization@freebsd.org Subject: bhyve PCIe passthrough on AMD Epyc Message-ID: <2E994604-BD27-464D-9D8C-14FF3C987D54@dragondata.com>
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I'm trying to get PCIe device (video card) passthrough working to a =
Windows bhyve VM, should this work now?
I have the device blocked off in loader.conf, and added =
hw.vmm.amdvi.enable=3D"1". After doing so this is how it appears in =
pciconf:
ppt0@pci0:97:0:0: class=3D0x030000 card=3D0x27173842 =
chip=3D0x128b10de rev=3D0xa1 hdr=3D0x00
bar [10] =3D type Memory, range 32, base 0xe0000000, size =
16777216, disabled
bar [14] =3D type Prefetchable Memory, range 64, base =
0xfcf0000000, size 134217728, disabled
bar [1c] =3D type Prefetchable Memory, range 64, base =
0xfcf8000000, size 33554432, disabled
bar [24] =3D type I/O Port, range 32, base 0x3000, size 128, =
disabled
cap 01[60] =3D powerspec 3 supports D0 D3 current D0
cap 05[68] =3D MSI supports 1 message, 64 bit
cap 10[78] =3D PCI-Express 2 legacy endpoint max data 256(256) RO NS
link x8(x8) speed 5.0(5.0)
ecap 0002[100] =3D VC 1 max VC0
ecap 0004[128] =3D Power Budgeting 1
ecap 000b[600] =3D Vendor 1 ID 1
When trying to attach it to a VM with "-s 9:0,passthru,97/0/0" I get =
this almost immediately after it starts up:
Assertion failed: (error =3D=3D 0), function modify_bar_registration, =
file /usr/src/usr.sbin/bhyve/pci_emul.c, line 504.
Also on the console I'm seeing a lot of messages like:
ivhd0: Error: completion failed tail:0x1c0, head:0x0.
ivhd0: Dump all the commands:
[CMD0, off:0xff0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD1, off:0x0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD2, off:0x10] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD3, off:0x20] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD4, off:0x30] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD5, off:0x40] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD6, off:0x50] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD7, off:0x60] opcode=3D 0x2 0x6101 0x0 0x0
[CMD8, off:0x70] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD9, off:0x80] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD10, off:0x90] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD11, off:0xa0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD12, off:0xb0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD13, off:0xc0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD14, off:0xd0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD15, off:0xe0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD16, off:0xf0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD17, off:0x100] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD18, off:0x110] opcode=3D 0x2 0x6100 0x0 0x0
[CMD19, off:0x120] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD20, off:0x130] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD21, off:0x140] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD22, off:0x150] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD23, off:0x160] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD24, off:0x170] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD25, off:0x180] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD26, off:0x190] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD27, off:0x1a0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
[CMD28, off:0x1b0] opcode=3D 0x1 0x304f1629 0x30 0xa5a5
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