Re: [PATCH 0/4] [AMD IOMMU] Enable PCI passthru for HVM guest

[Stephan Seitz <s.seitz@netz-haut.de>]

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Hi developers,

i'm currently trying to test pci passthru on a ht2000/ht1000 platform (Tyan h2000M (S3992-E) ).
Using enable_amd_iommu with Xen 3.2.0 shows "AMD IOMMU not present".
Could reworking this patch into 3.2.0 could solve this issue?
Or has this patch made it into xen-unstable, or is superseded by some later work?

Thanks for any response!

Maybe IOMMU isn't supported on this mainborad, but I'm unable to get a clear answer from tyan.

lspci -v shows following devices:

00:01.0 PCI bridge: Broadcom BCM5785 [HT1000] PCI/PCI-X Bridge (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 64
	Bus: primary=00, secondary=01, subordinate=03, sec-latency=64
	I/O behind bridge: 00009000-0000afff
	Memory behind bridge: f8700000-f88fffff
	Prefetchable memory behind bridge: 00000000af500000-00000000afcfffff
	Capabilities: [90] PCI-X bridge device
	Capabilities: [a0] HyperTransport: MSI Mapping
	Capabilities: [b0] HyperTransport: Slave or Primary Interface
	Capabilities: [d8] Subsystem: Gammagraphx, Inc. Unknown device 0000

00:02.0 Host bridge: Broadcom BCM5785 [HT1000] Legacy South Bridge
	Subsystem: Broadcom Unknown device 0201
	Flags: bus master, medium devsel, latency 64

00:02.1 IDE interface: Broadcom BCM5785 [HT1000] IDE (prog-if 8a [Master SecP PriP])
	Subsystem: Broadcom BCM5785 [HT1000] IDE
	Flags: bus master, medium devsel, latency 64
	I/O ports at 01f0 [size=8]
	I/O ports at 03f4 [size=1]
	I/O ports at 0170 [size=8]
	I/O ports at 0374 [size=1]
	I/O ports at ffa0 [size=16]

00:02.2 ISA bridge: Broadcom BCM5785 [HT1000] LPC
	Subsystem: Broadcom Unknown device 0230
	Flags: bus master, medium devsel, latency 0

00:03.0 USB Controller: Broadcom BCM5785 [HT1000] USB (rev 01) (prog-if 10 [OHCI])
	Subsystem: Broadcom BCM5785 [HT1000] USB
	Flags: 66MHz, medium devsel, IRQ 10
	Memory at febf9000 (32-bit, non-prefetchable) [disabled] [size=4K]
	I/O ports at e000 [disabled] [size=256]
	Capabilities: [dc] Power Management version 2

00:03.1 USB Controller: Broadcom BCM5785 [HT1000] USB (rev 01) (prog-if 10 [OHCI])
	Subsystem: Broadcom BCM5785 [HT1000] USB
	Flags: 66MHz, medium devsel, IRQ 10
	Memory at febfa000 (32-bit, non-prefetchable) [disabled] [size=4K]
	I/O ports at e400 [disabled] [size=256]
	Capabilities: [dc] Power Management version 2

00:03.2 USB Controller: Broadcom BCM5785 [HT1000] USB (rev 01) (prog-if 20 [EHCI])
	Subsystem: Broadcom BCM5785 [HT1000] USB
	Flags: 66MHz, medium devsel, IRQ 10
	Memory at febfb000 (32-bit, non-prefetchable) [disabled] [size=4K]
	I/O ports at e800 [disabled] [size=256]
	Capabilities: [dc] Power Management version 2

00:04.0 Ethernet controller: Intel Corporation 82557/8/9 Ethernet Pro 100 (rev 10)
	Subsystem: Intel Corporation EtherExpress PRO/100 S Server Adapter
	Flags: bus master, medium devsel, latency 64, IRQ 16
	Memory at febf8000 (32-bit, non-prefetchable) [size=4K]
	I/O ports at ec00 [size=64]
	Memory at febc0000 (32-bit, non-prefetchable) [size=128K]
	Capabilities: [dc] Power Management version 2

00:06.0 PCI bridge: Broadcom BCM5780 [HT2000] PCI-X bridge (rev b0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 64
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=64
	Capabilities: [90] PCI-X bridge device
	Capabilities: [a0] HyperTransport: MSI Mapping
	Capabilities: [b0] HyperTransport: Slave or Primary Interface

00:07.0 PCI bridge: Broadcom BCM5780 [HT2000] PCI-X bridge (rev b0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 64
	Bus: primary=00, secondary=05, subordinate=05, sec-latency=64
	Memory behind bridge: f8900000-f89fffff
	Prefetchable memory behind bridge: 00000000afd00000-00000000afdfffff
	Capabilities: [90] PCI-X bridge device
	Capabilities: [a0] HyperTransport: MSI Mapping

00:08.0 PCI bridge: Broadcom BCM5780 [HT2000] PCI-Express Bridge (rev b0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=06, subordinate=06, sec-latency=64
	I/O behind bridge: 0000b000-0000bfff
	Memory behind bridge: f8a00000-feafffff
	Prefetchable memory behind bridge: 00000000afe00000-00000000cfefffff
	Capabilities: [a0] HyperTransport: MSI Mapping
	Capabilities: [b0] Express Root Port (Slot-) IRQ 0

00:09.0 PCI bridge: Broadcom BCM5780 [HT2000] PCI-Express Bridge (rev b0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=07, subordinate=07, sec-latency=64
	Capabilities: [a0] HyperTransport: MSI Mapping
	Capabilities: [b0] Express Root Port (Slot-) IRQ 0

00:0a.0 PCI bridge: Broadcom BCM5780 [HT2000] PCI-Express Bridge (rev b0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=08, subordinate=08, sec-latency=64
	Capabilities: [a0] HyperTransport: MSI Mapping
	Capabilities: [b0] Express Root Port (Slot-) IRQ 0

00:0b.0 PCI bridge: Broadcom BCM5780 [HT2000] PCI-Express Bridge (rev b0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=09, subordinate=09, sec-latency=64
	Capabilities: [a0] HyperTransport: MSI Mapping
	Capabilities: [b0] Express Root Port (Slot-) IRQ 0

00:0c.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02) (prog-if 00 [VGA])
	Subsystem: ATI Technologies Inc ES1000
	Flags: stepping, medium devsel, IRQ 17
	Memory at d8000000 (32-bit, prefetchable) [disabled] [size=128M]
	I/O ports at d000 [disabled] [size=256]
	Memory at febe0000 (32-bit, non-prefetchable) [disabled] [size=64K]
	Expansion ROM at feba0000 [disabled] [size=128K]
	Capabilities: [50] Power Management version 2

00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] HyperTransport Configuration
	Flags: fast devsel
	Capabilities: [80] HyperTransport: Host or Secondary Interface
	Capabilities: [a0] HyperTransport: Host or Secondary Interface
	Capabilities: [c0] HyperTransport: Host or Secondary Interface

00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Address Map
	Flags: fast devsel

00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] DRAM Controller
	Flags: fast devsel

00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Miscellaneous Control
	Flags: fast devsel
	Capabilities: [f0] #0f [0010]

00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Link Control
	Flags: fast devsel
	Capabilities: [c0] HyperTransport: Host or Secondary Interface

00:19.0 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] HyperTransport Configuration
	Flags: fast devsel
	Capabilities: [80] HyperTransport: Host or Secondary Interface
	Capabilities: [a0] HyperTransport: Host or Secondary Interface
	Capabilities: [c0] HyperTransport: Host or Secondary Interface

00:19.1 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Address Map
	Flags: fast devsel

00:19.2 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] DRAM Controller
	Flags: fast devsel

00:19.3 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Miscellaneous Control
	Flags: fast devsel
	Capabilities: [f0] #0f [0010]

00:19.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, Athlon64, Sempron] Link Control
	Flags: fast devsel
	Capabilities: [80] HyperTransport: Host or Secondary Interface
	Capabilities: [c0] HyperTransport: Host or Secondary Interface

01:0d.0 PCI bridge: Broadcom BCM5785 [HT1000] PCI/PCI-X Bridge (rev c0) (prog-if 00 [Normal decode])
	Flags: bus master, 66MHz, medium devsel, latency 64
	Bus: primary=01, secondary=02, subordinate=03, sec-latency=64
	Memory behind bridge: f8700000-f87fffff
	Prefetchable memory behind bridge: 00000000af500000-00000000afcfffff
	Capabilities: [90] PCI-X bridge device
	Capabilities: [88] Subsystem: Illegal Vendor ID Unknown device ffff

01:0e.0 IDE interface: Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode) (prog-if 8f [Master SecP SecO PriP PriO])
	Subsystem: Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode)
	Flags: bus master, medium devsel, latency 64, IRQ 11
	I/O ports at ac00 [size=8]
	I/O ports at a880 [size=4]
	I/O ports at a800 [size=8]
	I/O ports at a480 [size=4]
	I/O ports at a400 [size=16]
	Memory at f88fe000 (32-bit, non-prefetchable) [size=8K]
	Expansion ROM at f88c0000 [disabled] [size=128K]
	Capabilities: [60] PCI-X non-bridge device
	Capabilities: [90] Power Management version 2
	Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-

01:0e.1 IDE interface: Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode) (prog-if 8f [Master SecP SecO PriP PriO])
	Subsystem: Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode)
	Flags: 66MHz, medium devsel, IRQ 11
	I/O ports at a080 [size=8]
	I/O ports at a000 [size=4]
	I/O ports at 9c00 [size=8]
	I/O ports at 9880 [size=4]
	I/O ports at 9800 [size=16]
	Capabilities: [60] PCI-X non-bridge device
	Capabilities: [90] Power Management version 2
	Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-

02:07.0 PCI bridge: Intel Corporation 80331 [Lindsay] I/O processor (PCI-X Bridge) (rev 0a) (prog-if 00 [Normal decode])
	Flags: bus master, 66MHz, medium devsel, latency 64
	Bus: primary=02, secondary=03, subordinate=03, sec-latency=64
	Memory behind bridge: f8700000-f87fffff
	Prefetchable memory behind bridge: 00000000af500000-00000000afcfffff
	Capabilities: [dc] Power Management version 2
	Capabilities: [f0] PCI-X bridge device

03:0e.0 RAID bus controller: Areca Technology Corp. ARC-1110 4-Port PCI-X to SATA RAID Controller
	Subsystem: Areca Technology Corp. ARC-1110 4-Port PCI-X to SATA RAID Controller
	Flags: bus master, stepping, 66MHz, medium devsel, latency 64, IRQ 23
	Memory at f87ff000 (32-bit, non-prefetchable) [size=4K]
	Memory at af800000 (32-bit, prefetchable) [size=4M]
	Expansion ROM at f87e0000 [disabled] [size=64K]
	Capabilities: [c0] Power Management version 2
	Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable-
	Capabilities: [e0] PCI-X non-bridge device

05:04.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet (rev 10)
	Subsystem: Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 26
	Memory at f89d0000 (64-bit, non-prefetchable) [size=64K]
	Memory at f89c0000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: [40] PCI-X non-bridge device
	Capabilities: [48] Power Management version 2
	Capabilities: [50] Vital Product Data
	Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+ Queue=0/3 Enable-

05:04.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet (rev 10)
	Subsystem: Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 27
	Memory at f89f0000 (64-bit, non-prefetchable) [size=64K]
	Memory at f89e0000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: [40] PCI-X non-bridge device
	Capabilities: [48] Power Management version 2
	Capabilities: [50] Vital Product Data
	Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+ Queue=0/3 Enable-

06:00.0 VGA compatible controller: nVidia Corporation GeForce 8600 GT (rev a1) (prog-if 00 [VGA])
	Flags: fast devsel, IRQ 28
	Memory at fd000000 (32-bit, non-prefetchable) [disabled] [size=16M]
	Memory at b0000000 (64-bit, prefetchable) [disabled] [size=256M]
	Memory at fa000000 (64-bit, non-prefetchable) [disabled] [size=32M]
	I/O ports at bc00 [disabled] [size=128]
	Expansion ROM at feae0000 [disabled] [size=128K]
	Capabilities: [60] Power Management version 2
	Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
	Capabilities: [78] Express Endpoint IRQ 0




Cheers,

Stephan




Keir Fraser schrieb:
> I assume this isn't intended for 3.2.0?
> 
>  -- Keir
> 
> 
> On 30/11/07 15:49, "Wei Wang2" <wei.wang2@amd.com> wrote:
> 
>> Hi, 
>> The following 4 patches enable direct device assignment (PCI passthru)
>> for HVM guest
>> on AMD IOMMU platforms. Please apply them against C/S 16491 as the named
>> order.
>> To enable AMD IOMMU, please add "enable_amd_iommu" as xen boot
>> parameter. 
>>
>> 1-cleanup.patch: code cleanup, bug fix, minor enhancements to existing
>> amd-iommu codes.
>> 2-passthru-amd.patch: passthru support, modifications to exsiting
>> amd-iommu codes.
>> 3-passthru-xen.patch: passthru support, minimodifications to in xen and
>> vtd code.
>> 4-ht1100.patch: fixup to ht1100 chipset detection.
>>
>>
>> Signed-off-by: Wei Wang <wei.wang2@amd.com>
>>
>>
>>
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel


-- 
Stephan Seitz
Senior System Administrator

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