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[Xen-devel] isdn-card loads but doesn't work in dom != 0

To: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] isdn-card loads but doesn't work in dom != 0
From: Patrick Scharrenberg <pittipatti@xxxxxx>
Date: Tue, 15 Mar 2005 17:41:40 +0100
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Hi!

I've got two hfc-chipset based isdn-cards in my pc. My intention was to
capsule them in a seperate xen-domain with restricted  network access.
The cards work fine in domain-0.

I hid them from domain-0 and assigned them to my isdn-domain.
There lspci shows them and drivers load and find the cards correctly.

The problem is, that they nevertheless don't work in this domain. When I
try to establish a connection nothing happens and after a while a
timeout occours.
I'm using mISDN stack and the same xen0-kernel for dom0 (where it works)
and isdn-domain.

Maybe it has something to do with shared interrupts?
lspci -v shows me that all(!) pci-devices share interrupts 5 and 11 when
working with xen.
When booting a normal linux-kernel without xen the system uses more than
these two irqs :-)

I use an asus "A7N8X Deluxe" motherboard which has a NVidia NForce2 chipset
(see   http://www.asus.com.tw/prog/spec.asp?m=A7N8X   for more
information about the motherboard and chipset)

so what might be the problem?

thanks and greets
Patrick

xm dmesg:

 Xen version 2.0.5 (root@) (gcc version 3.3.5 (Debian 1:3.3.5-8)) Tue
Mar 15 15:20:51 UTC 2005
 Latest ChangeSet: information unavailable

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 000000000009f800 (usable)
(XEN)  000000000009f800 - 00000000000a0000 (reserved)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000000fff0000 (usable)
(XEN)  000000000fff0000 - 000000000fff3000 (ACPI NVS)
(XEN)  000000000fff3000 - 0000000010000000 (ACPI data)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fee00000 - 00000000fee01000 (reserved)
(XEN)  00000000ffff0000 - 0000000100000000 (reserved)
(XEN) System RAM: 255MB (261692kB)
(XEN) Xen heap: 10MB (10788kB)
(XEN) CPU0: Before vendor init, caps: 0383fbff c1c3fbff 00000000, vendor = 2
(XEN) CPU caps: 0383fbff c1c3fbff 00000000 00000000
(XEN) ACPI: RSDP (v000 Nvidia                                    ) @
0x000f75e0
(XEN) ACPI: RSDT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x00000000) @
0x0fff3000
(XEN) ACPI: FADT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x00000000) @
0x0fff3040
(XEN) ACPI: MADT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x00000000) @
0x0fff74c0
(XEN) ACPI: DSDT (v001 NVIDIA AWRDACPI 0x00001000 MSFT 0x0100000e) @
0x00000000
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
(XEN) Processor #0 Pentium(tm) Pro APIC version 16
(XEN) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
(XEN) Using scheduler: Borrowed Virtual Time (bvt)
(XEN) Initializing CPU#0
(XEN) Detected 1597.613 MHz processor.
(XEN) Found and enabled local APIC!
(XEN) CPU0: Before vendor init, caps: 0383fbff c1c3fbff 00000000, vendor = 2
(XEN) CPU caps: 0383fbff c1c3fbff 00000000 00000000
(XEN) CPU0 booted
(XEN) SMP motherboard not detected.
(XEN) enabled ExtINT on CPU#0
(XEN) ESR value before enabling vector: 00000000
(XEN) ESR value after enabling vector: 00000000
(XEN) Using local APIC timer interrupts.
(XEN) Calibrating APIC timer for CPU0...
(XEN) ..... CPU speed is 1597.6200 MHz.
(XEN) ..... Bus speed is 266.2699 MHz.
(XEN) ..... bus_scale = 0x000110B3
(XEN) Time init:
(XEN) .... System Time: 11926489ns
(XEN) .... cpu_freq:    00000000:5F39A594
(XEN) .... scale:       00000001:407A5F95
(XEN) .... Wall Clock:  1110903013s 30000us
(XEN) PCI: PCI BIOS revision 2.10 entry at 0xfb490, last bus=3
(XEN) PCI: Using configuration type 1
(XEN) PCI: Probing PCI hardware
(XEN) PCI: Probing PCI hardware (bus 00)
(XEN) PCI: Using IRQ router default [10de/01e0] at 00:00.0
(XEN) mtrr: v2.0 (20020519)
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen-ELF header found:
'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=2.0,VIRT_BASE=0xC0000000,LOADER=generic,PT_MODE_WRITABLE'
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Kernel image:  00c00000->00f08e60
(XEN)  Initrd image:  00000000->00000000
(XEN)  Dom0 alloc.:   01000000->09000000
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: c0100000->c0438504
(XEN)  Init. ramdisk: c0439000->c0439000
(XEN)  Phys-Mach map: c0439000->c0459000
(XEN)  Page tables:   c0459000->c045c000
(XEN)  Start info:    c045c000->c045d000
(XEN)  Boot stack:    c045d000->c045e000
(XEN)  TOTAL:         c0000000->c0800000
(XEN)  ENTRY ADDRESS: c0100000
(XEN) Scrubbing DOM0 RAM: ..done.
(XEN) Hiding PCI device 01:09.0 from DOM0
(XEN) Hiding PCI device 01:0a.0 from DOM0
(XEN) Scrubbing Free RAM: ...done.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
input to Xen).
(XEN) spurious 8259A interrupt: IRQ7.



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