From: Mike Carney <mc-al34luc@sbcglobal.net>
To: xen-devel@lists.xensource.com
Subject: Re: dom0, guests, pci hardware and interrupts...
Date: Fri, 10 Aug 2007 11:59:39 -0700 [thread overview]
Message-ID: <f9ichi$ru0$1@sea.gmane.org> (raw)
In-Reply-To: C2E251A8.14054%keir@xensource.com
[-- Attachment #1: Type: text/plain, Size: 1094 bytes --]
Hi Keir,
Thanks for your response.
Keir Fraser wrote:
> On 10/8/07 17:15, "Mike Carney" <mc-al34luc@sbcglobal.net> wrote:
>
>> Any suggestions for how to influence the interrupts that are assigned to
>> devices in dom0? It seems that there are a number of physical interrupts
>> that are not used, and some are shared:
>
> If the device interrupts are aliasing then that is because the physical
> interrupt lines are physically wired together. There's nothing you can do
> about that, except try moving PCI cards to different slots (if one of your
> devices is not built in to the mobo chipset) and hence use a different
> physical interrupt line for that PCI card.
>
> Which interrupt number is shared? If you 'xm debug-key z' and then 'xm
> dmesg', a bunch of IO-APIC related debug output should be printed. This
> might yield some interesting info (probably just confirming that your
> devices really are wired to the same interrupt line).
>
> -- Keir
Attached please find the output of xm dmesg after xm debug-key z. Any
help in parsing this would be appreciated.
Thanks,
Mike
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: dmesg --]
[-- Type: text/x-diff; name="dmesg", Size: 14918 bytes --]
__ __ _____ _ ___ _____ __ _____
\ \/ /___ _ __ |___ / / | / _ \ _ __ __|___ |/ _| __|___ |
\ // _ \ \047_ \ |_ \ | || | | |__| \047__/ __| / /| |_ / __| / /
/ \ __/ | | | ___) || || |_| |__| | | (__ / /_| _| (__ / /
/_/\_\___|_| |_| |____(_)_(_)___/ |_| \___/_/(_)_| \___/_/
http://www.cl.cam.ac.uk/netos/xen
University of Cambridge Computer Laboratory
Xen version 3.1.0-rc7-2925.13NO_PAE.fc7 (build@blacktabbysystems.com) (gcc version 4.1.2 20070502 (Red Hat 4.1.2-12)) Tue Jul 31 20:33:44 PDT 2007
Latest ChangeSet: unavailable
(XEN) Command line: /xen.gz-2.6.20-2925.13NO_PAE.fc7 dom0_mem=224M dom0_max_mem=256M dom0_max_vcpus=1 conswitch=g com1=38400,8n1 console=com1
(XEN) 0000000000000000 - 00000000000a0000 (usable)
(XEN) 00000000000f0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 000000003ff77000 (usable)
(XEN) 000000003ff77000 - 000000003ff79000 (ACPI NVS)
(XEN) 000000003ff79000 - 0000000040000000 (reserved)
(XEN) 00000000fec00000 - 00000000fec10000 (reserved)
(XEN) 00000000fee00000 - 00000000fee10000 (reserved)
(XEN) 00000000ffb00000 - 0000000100000000 (reserved)
(XEN) System RAM: 1023MB (1047644kB)
(XEN) Xen heap: 10MB (10300kB)
(XEN) Domain heap initialised: DMA width 32 bits
(XEN) PAE disabled.
(XEN) Processor #0 15:2 APIC version 20
(XEN) Processor #2 15:2 APIC version 20
(XEN) Processor #1 15:2 APIC version 20
(XEN) Processor #3 15:2 APIC version 20
(XEN) IOAPIC[0]: apic_id 4, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 1994.002 MHz processor.
(XEN) CPU0: Intel(R) Xeon(TM) CPU 2.00GHz stepping 07
(XEN) Mapping cpu 0 to node 255
(XEN) Booting processor 1/2 eip 90000
(XEN) Mapping cpu 1 to node 255
(XEN) CPU1: Intel(R) Xeon(TM) CPU 2.00GHz stepping 07
(XEN) Booting processor 2/1 eip 90000
(XEN) Mapping cpu 2 to node 255
(XEN) CPU2: Intel(R) Xeon(TM) CPU 2.00GHz stepping 07
(XEN) Booting processor 3/3 eip 90000
(XEN) Mapping cpu 3 to node 255
(XEN) CPU3: Intel(R) Xeon(TM) CPU 2.00GHz stepping 07
(XEN) Total of 4 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using new ACK method
(XEN) Platform timer is 1.193MHz PIT
(XEN) Brought up 4 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) elf_parse_binary: phdr: paddr=0xc0400000 memsz=0x2b4c54
(XEN) elf_parse_binary: phdr: paddr=0xc06b5000 memsz=0x2df000
(XEN) elf_parse_binary: memory: 0xc0400000 -> 0xc0994000
(XEN) elf_xen_parse_note: GUEST_OS = "linux"
(XEN) elf_xen_parse_note: GUEST_VERSION = "2.6"
(XEN) elf_xen_parse_note: XEN_VERSION = "xen-3.0"
(XEN) elf_xen_parse_note: VIRT_BASE = 0xc0000000
(XEN) elf_xen_parse_note: PADDR_OFFSET = 0xc0000000
(XEN) elf_xen_parse_note: ENTRY = 0xc0400000
(XEN) elf_xen_parse_note: HYPERCALL_PAGE = 0xc0401000
(XEN) elf_xen_parse_note: HV_START_LOW = 0xfc000000
(XEN) elf_xen_parse_note: FEATURES = "writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel"
(XEN) elf_xen_parse_note: PAE_MODE = "no"
(XEN) elf_xen_parse_note: LOADER = "generic"
(XEN) elf_xen_addr_calc_check: addresses:
(XEN) virt_base = 0xc0000000
(XEN) elf_paddr_offset = 0xc0000000
(XEN) virt_offset = 0x0
(XEN) virt_kstart = 0xc0400000
(XEN) virt_kend = 0xc0994000
(XEN) virt_entry = 0xc0400000
(XEN) Xen kernel: 32-bit, lsb
(XEN) Dom0 kernel: 32-bit, lsb, paddr 0xc0400000 -> 0xc0994000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 3c000000->3e000000 (49152 pages to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: c0400000->c0994000
(XEN) Init. ramdisk: c0994000->c10c2000
(XEN) Phys-Mach map: c10c2000->c10fa000
(XEN) Start info: c10fa000->c10fa46c
(XEN) Page tables: c10fb000->c1101000
(XEN) Boot stack: c1101000->c1102000
(XEN) TOTAL: c0000000->c1400000
(XEN) ENTRY ADDRESS: c0400000
(XEN) Dom0 has maximum 1 VCPUs
(XEN) elf_load_binary: phdr 0 at 0xc0400000 -> 0xc06b4c54
(XEN) elf_load_binary: phdr 1 at 0xc06b5000 -> 0xc0723b64
(XEN) Initrd len 0x72e000, start at 0xc0994000
(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) *** Serial input -> DOM0 (type \047CTRL-g\047 three times to switch input to Xen).
(XEN) ioapic_guest_write: apic=0, pin=4, old_irq=4, new_irq=4
(XEN) ioapic_guest_write: old_entry=000009f1, new_entry=000109f1
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) mm.c:612:d2 Non-privileged (2) attempt to map I/O space 00000000
(XEN) mm.c:612:d2 Non-privileged (2) attempt to map I/O space 00000000
(XEN) mm.c:612:d1 Non-privileged (1) attempt to map I/O space 000000f0
(XEN) mm.c:612:d3 Non-privileged (3) attempt to map I/O space 000000f8
(XEN) number of MP IRQ sources: 15.
(XEN) number of IO-APIC #4 registers: 24.
(XEN) testing the IO APIC.......................
(XEN) IO APIC #4......
(XEN) .... register #00: 00000000
(XEN) ....... : physical APIC id: 00
(XEN) ....... : Delivery Type: 0
(XEN) ....... : LTS : 0
(XEN) .... register #01: 00178020
(XEN) ....... : max redirection entries: 0017
(XEN) ....... : PRQ implemented: 1
(XEN) ....... : IO APIC version: 0020
(XEN) .... register #02: 00000000
(XEN) ....... : arbitration: 00
(XEN) .... register #03: 00000001
(XEN) ....... : Boot DT : 1
(XEN) .... IRQ redirection table:
(XEN) NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
(XEN) 00 000 00 1 0 0 0 0 0 0 00
(XEN) 01 001 01 0 0 0 0 0 1 1 28
(XEN) 02 00F 0F 0 0 0 0 0 1 1 F0
(XEN) 03 00F 0F 0 0 0 0 0 1 1 30
(XEN) 04 00F 0F 0 0 0 0 0 1 1 F1
(XEN) 05 00F 0F 0 0 0 0 0 1 1 38
(XEN) 06 001 01 0 0 0 0 0 1 1 40
(XEN) 07 00F 0F 0 0 0 0 0 1 1 48
(XEN) 08 001 01 0 0 0 0 0 1 1 50
(XEN) 09 001 01 0 1 0 0 0 1 1 58
(XEN) 0a 00F 0F 0 0 0 0 0 1 1 60
(XEN) 0b 00F 0F 0 0 0 0 0 1 1 68
(XEN) 0c 00F 0F 0 0 0 0 0 1 1 70
(XEN) 0d 00F 0F 0 0 0 0 0 1 1 78
(XEN) 0e 001 01 0 0 0 0 0 1 1 88
(XEN) 0f 001 01 0 0 0 0 0 1 1 90
(XEN) 10 000 00 1 0 0 0 0 0 0 00
(XEN) 11 001 01 0 1 0 1 0 1 1 B0
(XEN) 12 000 00 1 0 0 0 0 0 0 00
(XEN) 13 001 01 0 1 0 1 0 1 1 98
(XEN) 14 001 01 0 1 0 1 0 1 1 A8
(XEN) 15 000 00 1 0 0 0 0 0 0 00
(XEN) 16 000 00 1 0 0 0 0 0 0 00
(XEN) 17 001 01 0 1 0 1 0 1 1 A0
(XEN) Using vector-based indexing
(XEN) IRQ to pin mappings:
(XEN) IRQ240 -> 0:2
(XEN) IRQ40 -> 0:1
(XEN) IRQ48 -> 0:3
(XEN) IRQ241 -> 0:4
(XEN) IRQ56 -> 0:5
(XEN) IRQ64 -> 0:6
(XEN) IRQ72 -> 0:7
(XEN) IRQ80 -> 0:8
(XEN) IRQ88 -> 0:9
(XEN) IRQ96 -> 0:10
(XEN) IRQ104 -> 0:11
(XEN) IRQ112 -> 0:12
(XEN) IRQ120 -> 0:13
(XEN) IRQ136 -> 0:14
(XEN) IRQ144 -> 0:15
(XEN) IRQ152 -> 0:19
(XEN) IRQ160 -> 0:23
(XEN) IRQ168 -> 0:20
(XEN) IRQ176 -> 0:17
(XEN) .................................... done.
(XEN) number of MP IRQ sources: 15.
(XEN) number of IO-APIC #4 registers: 24.
(XEN) testing the IO APIC.......................
(XEN) IO APIC #4......
(XEN) .... register #00: 00000000
(XEN) ....... : physical APIC id: 00
(XEN) ....... : Delivery Type: 0
(XEN) ....... : LTS : 0
(XEN) .... register #01: 00178020
(XEN) ....... : max redirection entries: 0017
(XEN) ....... : PRQ implemented: 1
(XEN) ....... : IO APIC version: 0020
(XEN) .... register #02: 00000000
(XEN) ....... : arbitration: 00
(XEN) .... register #03: 00000001
(XEN) ....... : Boot DT : 1
(XEN) .... IRQ redirection table:
(XEN) NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
(XEN) 00 000 00 1 0 0 0 0 0 0 00
(XEN) 01 001 01 0 0 0 0 0 1 1 28
(XEN) 02 00F 0F 0 0 0 0 0 1 1 F0
(XEN) 03 00F 0F 0 0 0 0 0 1 1 30
(XEN) 04 00F 0F 0 0 0 0 0 1 1 F1
(XEN) 05 00F 0F 0 0 0 0 0 1 1 38
(XEN) 06 001 01 0 0 0 0 0 1 1 40
(XEN) 07 00F 0F 0 0 0 0 0 1 1 48
(XEN) 08 001 01 0 0 0 0 0 1 1 50
(XEN) 09 001 01 0 1 0 0 0 1 1 58
(XEN) 0a 00F 0F 0 0 0 0 0 1 1 60
(XEN) 0b 00F 0F 0 0 0 0 0 1 1 68
(XEN) 0c 00F 0F 0 0 0 0 0 1 1 70
(XEN) 0d 00F 0F 0 0 0 0 0 1 1 78
(XEN) 0e 001 01 0 0 0 0 0 1 1 88
(XEN) 0f 001 01 0 0 0 0 0 1 1 90
(XEN) 10 000 00 1 0 0 0 0 0 0 00
(XEN) 11 001 01 0 1 0 1 0 1 1 B0
(XEN) 12 000 00 1 0 0 0 0 0 0 00
(XEN) 13 001 01 0 1 0 1 0 1 1 98
(XEN) 14 001 01 0 1 0 1 0 1 1 A8
(XEN) 15 000 00 1 0 0 0 0 0 0 00
(XEN) 16 000 00 1 0 0 0 0 0 0 00
(XEN) 17 001 01 0 1 0 1 0 1 1 A0
(XEN) Using vector-based indexing
(XEN) IRQ to pin mappings:
(XEN) IRQ240 -> 0:2
(XEN) IRQ40 -> 0:1
(XEN) IRQ48 -> 0:3
(XEN) IRQ241 -> 0:4
(XEN) IRQ56 -> 0:5
(XEN) IRQ64 -> 0:6
(XEN) IRQ72 -> 0:7
(XEN) IRQ80 -> 0:8
(XEN) IRQ88 -> 0:9
(XEN) IRQ96 -> 0:10
(XEN) IRQ104 -> 0:11
(XEN) IRQ112 -> 0:12
(XEN) IRQ120 -> 0:13
(XEN) IRQ136 -> 0:14
(XEN) IRQ144 -> 0:15
(XEN) IRQ152 -> 0:19
(XEN) IRQ160 -> 0:23
(XEN) IRQ168 -> 0:20
(XEN) IRQ176 -> 0:17
(XEN) .................................... done.
(XEN) number of MP IRQ sources: 15.
(XEN) number of IO-APIC #4 registers: 24.
(XEN) testing the IO APIC.......................
(XEN) IO APIC #4......
(XEN) .... register #00: 00000000
(XEN) ....... : physical APIC id: 00
(XEN) ....... : Delivery Type: 0
(XEN) ....... : LTS : 0
(XEN) .... register #01: 00178020
(XEN) ....... : max redirection entries: 0017
(XEN) ....... : PRQ implemented: 1
(XEN) ....... : IO APIC version: 0020
(XEN) .... register #02: 00000000
(XEN) ....... : arbitration: 00
(XEN) .... register #03: 00000001
(XEN) ....... : Boot DT : 1
(XEN) .... IRQ redirection table:
(XEN) NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
(XEN) 00 000 00 1 0 0 0 0 0 0 00
(XEN) 01 001 01 0 0 0 0 0 1 1 28
(XEN) 02 00F 0F 0 0 0 0 0 1 1 F0
(XEN) 03 00F 0F 0 0 0 0 0 1 1 30
(XEN) 04 00F 0F 0 0 0 0 0 1 1 F1
(XEN) 05 00F 0F 0 0 0 0 0 1 1 38
(XEN) 06 001 01 0 0 0 0 0 1 1 40
(XEN) 07 00F 0F 0 0 0 0 0 1 1 48
(XEN) 08 001 01 0 0 0 0 0 1 1 50
(XEN) 09 001 01 0 1 0 0 0 1 1 58
(XEN) 0a 00F 0F 0 0 0 0 0 1 1 60
(XEN) 0b 00F 0F 0 0 0 0 0 1 1 68
(XEN) 0c 00F 0F 0 0 0 0 0 1 1 70
(XEN) 0d 00F 0F 0 0 0 0 0 1 1 78
(XEN) 0e 001 01 0 0 0 0 0 1 1 88
(XEN) 0f 001 01 0 0 0 0 0 1 1 90
(XEN) 10 000 00 1 0 0 0 0 0 0 00
(XEN) 11 001 01 0 1 0 1 0 1 1 B0
(XEN) 12 000 00 1 0 0 0 0 0 0 00
(XEN) 13 001 01 0 1 0 1 0 1 1 98
(XEN) 14 001 01 0 1 0 1 0 1 1 A8
(XEN) 15 000 00 1 0 0 0 0 0 0 00
(XEN) 16 000 00 1 0 0 0 0 0 0 00
(XEN) 17 001 01 0 1 0 1 0 1 1 A0
(XEN) Using vector-based indexing
(XEN) IRQ to pin mappings:
(XEN) IRQ240 -> 0:2
(XEN) IRQ40 -> 0:1
(XEN) IRQ48 -> 0:3
(XEN) IRQ241 -> 0:4
(XEN) IRQ56 -> 0:5
(XEN) IRQ64 -> 0:6
(XEN) IRQ72 -> 0:7
(XEN) IRQ80 -> 0:8
(XEN) IRQ88 -> 0:9
(XEN) IRQ96 -> 0:10
(XEN) IRQ104 -> 0:11
(XEN) IRQ112 -> 0:12
(XEN) IRQ120 -> 0:13
(XEN) IRQ136 -> 0:14
(XEN) IRQ144 -> 0:15
(XEN) IRQ152 -> 0:19
(XEN) IRQ160 -> 0:23
(XEN) IRQ168 -> 0:20
(XEN) IRQ176 -> 0:17
(XEN) .................................... done.
(XEN) number of MP IRQ sources: 15.
(XEN) number of IO-APIC #4 registers: 24.
(XEN) testing the IO APIC.......................
(XEN) IO APIC #4......
(XEN) .... register #00: 00000000
(XEN) ....... : physical APIC id: 00
(XEN) ....... : Delivery Type: 0
(XEN) ....... : LTS : 0
(XEN) .... register #01: 00178020
(XEN) ....... : max redirection entries: 0017
(XEN) ....... : PRQ implemented: 1
(XEN) ....... : IO APIC version: 0020
(XEN) .... register #02: 00000000
(XEN) ....... : arbitration: 00
(XEN) .... register #03: 00000001
(XEN) ....... : Boot DT : 1
(XEN) .... IRQ redirection table:
(XEN) NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
(XEN) 00 000 00 1 0 0 0 0 0 0 00
(XEN) 01 001 01 0 0 0 0 0 1 1 28
(XEN) 02 00F 0F 0 0 0 0 0 1 1 F0
(XEN) 03 00F 0F 0 0 0 0 0 1 1 30
(XEN) 04 00F 0F 0 0 0 0 0 1 1 F1
(XEN) 05 00F 0F 0 0 0 0 0 1 1 38
(XEN) 06 001 01 0 0 0 0 0 1 1 40
(XEN) 07 00F 0F 0 0 0 0 0 1 1 48
(XEN) 08 001 01 0 0 0 0 0 1 1 50
(XEN) 09 001 01 0 1 0 0 0 1 1 58
(XEN) 0a 00F 0F 0 0 0 0 0 1 1 60
(XEN) 0b 00F 0F 0 0 0 0 0 1 1 68
(XEN) 0c 00F 0F 0 0 0 0 0 1 1 70
(XEN) 0d 00F 0F 0 0 0 0 0 1 1 78
(XEN) 0e 001 01 0 0 0 0 0 1 1 88
(XEN) 0f 001 01 0 0 0 0 0 1 1 90
(XEN) 10 000 00 1 0 0 0 0 0 0 00
(XEN) 11 001 01 0 1 0 1 0 1 1 B0
(XEN) 12 000 00 1 0 0 0 0 0 0 00
(XEN) 13 001 01 0 1 0 1 0 1 1 98
(XEN) 14 001 01 0 1 0 1 0 1 1 A8
(XEN) 15 000 00 1 0 0 0 0 0 0 00
(XEN) 16 000 00 1 0 0 0 0 0 0 00
(XEN) 17 001 01 0 1 0 1 0 1 1 A0
(XEN) Using vector-based indexing
(XEN) IRQ to pin mappings:
(XEN) IRQ240 -> 0:2
(XEN) IRQ40 -> 0:1
(XEN) IRQ48 -> 0:3
(XEN) IRQ241 -> 0:4
(XEN) IRQ56 -> 0:5
(XEN) IRQ64 -> 0:6
(XEN) IRQ72 -> 0:7
(XEN) IRQ80 -> 0:8
(XEN) IRQ88 -> 0:9
(XEN) IRQ96 -> 0:10
(XEN) IRQ104 -> 0:11
(XEN) IRQ112 -> 0:12
(XEN) IRQ120 -> 0:13
(XEN) IRQ136 -> 0:14
(XEN) IRQ144 -> 0:15
(XEN) IRQ152 -> 0:19
(XEN) IRQ160 -> 0:23
(XEN) IRQ168 -> 0:20
(XEN) IRQ176 -> 0:17
(XEN) .................................... done.
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prev parent reply other threads:[~2007-08-10 18:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-10 16:15 dom0, guests, pci hardware and interrupts Mike Carney
2007-08-10 16:32 ` Keir Fraser
2007-08-10 18:59 ` Mike Carney [this message]
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