[Pkg-xen-devel] Bug#706543: xen-hypervisor-4.1-amd64: HVM PCI Passthrough not working any more after last upgrade

Markus markus at trash-mail.com
Wed May 1 15:30:32 UTC 2013 

Package: xen-hypervisor-4.1-amd64
Version: 4.1.4-3
Followup-For: Bug #706543

Here you go:
# xen dmesg
(XEN) Xen version 4.1.4 (Debian 4.1.4-3) (waldi at debian.org) (gcc version 4.7.2 (Debian 4.7.2-5) ) Fri Apr 19 11:34:20 UTC 2013
(XEN) Bootloader: GRUB 1.99-27+deb7u1
(XEN) Command line: placeholder iommu=no-intremap i915.blacklist=1
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN)  Found 4 MBR signatures
(XEN)  Found 4 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009d800 (usable)
(XEN)  000000000009d800 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 0000000020000000 (usable)
(XEN)  0000000020000000 - 0000000020200000 (reserved)
(XEN)  0000000020200000 - 0000000040004000 (usable)
(XEN)  0000000040004000 - 0000000040005000 (reserved)
(XEN)  0000000040005000 - 00000000cda15000 (usable)
(XEN)  00000000cda15000 - 00000000cdd4b000 (reserved)
(XEN)  00000000cdd4b000 - 00000000cddd6000 (usable)
(XEN)  00000000cddd6000 - 00000000cde73000 (ACPI NVS)
(XEN)  00000000cde73000 - 00000000ce4de000 (reserved)
(XEN)  00000000ce4de000 - 00000000ce4df000 (usable)
(XEN)  00000000ce4df000 - 00000000ce522000 (ACPI NVS)
(XEN)  00000000ce522000 - 00000000ced40000 (usable)
(XEN)  00000000ced40000 - 00000000ceff2000 (reserved)
(XEN)  00000000ceff2000 - 00000000cf000000 (usable)
(XEN)  00000000cf800000 - 00000000dfa00000 (reserved)
(XEN)  00000000f8000000 - 00000000fc000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fed00000 - 00000000fed04000 (reserved)
(XEN)  00000000fed1c000 - 00000000fed20000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ff000000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 000000021e600000 (usable)
(XEN) ACPI: RSDP 000F0490, 0024 (r2 ALASKA)
(XEN) ACPI: XSDT CDE64088, 008C (r1 ALASKA    A M I  1072009 AMI     10013)
(XEN) ACPI: FACP CDE6D8C8, 010C (r5 ALASKA    A M I  1072009 AMI     10013)
(XEN) ACPI Warning (tbfadt-0232): FADT (revision 5) is longer than ACPI 2.0 version, truncating length 0x10C to 0xF4 [20070126]
(XEN) ACPI: DSDT CDE641A8, 971F (r2 ALASKA    A M I       22 INTL 20051117)
(XEN) ACPI: FACS CDE71080, 0040
(XEN) ACPI: APIC CDE6D9D8, 0072 (r3 ALASKA    A M I  1072009 AMI     10013)
(XEN) ACPI: FPDT CDE6DA50, 0044 (r1 ALASKA    A M I  1072009 AMI     10013)
(XEN) ACPI: MCFG CDE6DA98, 003C (r1 ALASKA    A M I  1072009 MSFT       97)
(XEN) ACPI: SSDT CDE6DAD8, 07E1 (r1 Intel_ AoacTabl     1000 INTL 20091112)
(XEN) ACPI: AAFT CDE6E2C0, 00EA (r1 ALASKA OEMAAFT   1072009 MSFT       97)
(XEN) ACPI: HPET CDE6E3B0, 0038 (r1 ALASKA    A M I  1072009 AMI.        5)
(XEN) ACPI: SSDT CDE6E3E8, 036D (r1 SataRe SataTabl     1000 INTL 20091112)
(XEN) ACPI: SSDT CDE6E758, 0968 (r1  PmRef  Cpu0Ist     3000 INTL 20051117)
(XEN) ACPI: SSDT CDE6F0C0, 0A92 (r1  PmRef    CpuPm     3000 INTL 20051117)
(XEN) ACPI: DMAR CDE6FB58, 00B0 (r1 INTEL      SNB         1 INTL        1)
(XEN) ACPI: ASF! CDE6FC08, 00A5 (r32 INTEL       HCG        1 TFSM    F4240)
(XEN) ACPI: BGRT CDE6FCB0, 0038 (r0 ALASKA    A M I  1072009 AMI     10013)
(XEN) System RAM: 7878MB (8067492kB)
(XEN) Domain heap initialised
(XEN) ACPI: 32/64X FACS address mismatch in FADT - cde71080/0000000000000000, using 32
(XEN) Processor #0 7:10 APIC version 21
(XEN) Processor #2 7:10 APIC version 21
(XEN) Processor #1 7:10 APIC version 21
(XEN) Processor #3 7:10 APIC version 21
(XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) Table is not found!
(XEN) Not enabling x2APIC: depends on iommu_supports_eim.
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2893.498 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d supported page sizes: 4kB.
(XEN) Intel VT-d supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping not enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using old ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN)  - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB
(XEN) Brought up 4 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x193d000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000210000000->0000000214000000 (1931341 pages to be allocated)
(XEN)  Init. ramdisk: 000000021c5e8000->000000021e5ffe00
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff8193d000
(XEN)  Init. ramdisk: ffffffff8193d000->ffffffff83954e00
(XEN)  Phys-Mach map: ffffffff83955000->ffffffff84841328
(XEN)  Start info:    ffffffff84842000->ffffffff848424b4
(XEN)  Page tables:   ffffffff84843000->ffffffff8486c000
(XEN)  Boot stack:    ffffffff8486c000->ffffffff8486d000
(XEN)  TOTAL:         ffffffff80000000->ffffffff84c00000
(XEN)  ENTRY ADDRESS: ffffffff816ab200
(XEN) Dom0 has maximum 4 VCPUs
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen)
(XEN) Freed 244kB init memory.
(XEN) physdev.c:168: dom0: wrong map_pirq type 3
(XEN) [VT-D]iommu.c:879: iommu_fault_status: Primary Pending Fault
(XEN) [VT-D]iommu.c:854: DMAR:[DMA Write] Request device [00:02.0] fault addr 21e0ab000, iommu reg = ffff82c3fff57000
(XEN) DMAR:[fault reason 05h] PTE Write access is not set
(XEN) print_vtd_entries: iommu = ffff83021b42c5f0 bdf = 0:2.0 gmfn = 21e0ab
(XEN)     root_entry = ffff830215dd3000
(XEN)     root_entry[0] = 80f9001
(XEN)     context = ffff8300080f9000
(XEN)     context[10] = 1_1e2c1001
(XEN)     l3 = ffff83001e2c1000
(XEN)     l3_index = 8
(XEN)     l3[8] = 0
(XEN)     l3[8] not present



I did more tests inpried by the bug description on the xen-users mailing list and I do have the same results here:
Passthrough VGA only: works(!)
Passthrough USB,Sound,VGA: not working
Passthrough USB only: not working
Passthrough Sound only: not working
Passthrough VGA, Sound: not working
Passthrough VGA, USB: not working

4.1.4-2 worked in any case.

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