Re: More questions on Xen

[Franck <franck@linuxpourtous.com>]

>>>This is OK, each guest only sees one processor. If you start another 
>>>domain it will use the second one.
>>
>>No, i don't think because i'm on my host guest, not in guest.
>>
> 
> What does "xm dmesg" show?  Remember, XEN is sitting between Dom0 and
> your hardware.  XEN should report 2+ processors on an SMP box, however
> Dom0 will only "see" one.

Ok, dmeg look like 2 CPU and assign only CPU0 to dom0
I've 2 xenU guest running, each one has 1 CPU ?
How can i find if the 2 CPU are working on the system ?


xm dmesg
[...]
(XEN) CPU0: Before vendor init, caps: 0183fbff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0183fbff 00000000 00000000 00000000
(XEN) found SMP MP-table at 000f5ae0
(XEN) ACPI: RSDP (v000 ABIT                                      ) @ 
0x000f7370
(XEN) ACPI: RSDT (v001 ABIT   AWRDACPI 0x42302e31 AWRD 0x00000000) @ 
0x11ff3000
(XEN) ACPI: FADT (v001 ABIT   AWRDACPI 0x42302e31 AWRD 0x00000000) @ 
0x11ff3040
(XEN) ACPI: MADT (v001 ABIT            0x00000000  0x00000000) @ 0x11ff54c0
(XEN) ACPI: DSDT (v001 ABIT   AWRDACPI 0x00001000 MSFT 0x0100000c) @ 
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 17
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
(XEN) Processor #1 Pentium(tm) Pro APIC version 17
(XEN) Using ACPI for processor (LAPIC) configuration information
(XEN) Intel MultiProcessor Specification v1.4
(XEN)     Virtual Wire compatibility mode.
(XEN) OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000
(XEN) I/O APIC #2 Version 17 at 0xFEC00000.
(XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) Processors: 2
(XEN) Using scheduler: Borrowed Virtual Time (bvt)
(XEN) Initializing CPU#0
(XEN) Detected 367.508 MHz processor.
(XEN) CPU0: Before vendor init, caps: 0183fbff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0183fbff 00000000 00000000 00000000
(XEN) CPU0 booted
(XEN) enabled ExtINT on CPU#0
(XEN) ESR value before enabling vector: 00000000
(XEN) ESR value after enabling vector: 00000000
(XEN) Booting processor 1/1 eip 90000
(XEN) Initializing CPU#1
(XEN) masked ExtINT on CPU#1
(XEN) ESR value before enabling vector: 00000000
(XEN) ESR value after enabling vector: 00000000
(XEN) CPU1: Before vendor init, caps: 0183fbff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0183fbff 00000000 00000000 00000000
(XEN) CPU1 has booted.
(XEN) Total of 2 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN) Setting 2 in the phys_id_present_map
(XEN) ...changing IO-APIC physical APIC ID to 2 ... ok.
(XEN) init IO_APIC IRQs
(XEN) ..TIMER: vector=0x41 pin1=2 pin2=0
(XEN) Using local APIC timer interrupts.
(XEN) Calibrating APIC timer for CPU0...
(XEN) ..... CPU speed is 367.5020 MHz.
(XEN) ..... Bus speed is 66.8184 MHz.
(XEN) ..... bus_scale = 0x0000446D
(XEN) checking TSC synchronization across CPUs: passed.
(XEN) Time init:
(XEN) .... System Time: 60875099ns
(XEN) .... cpu_freq:    00000000:15E7BDE0
(XEN) .... scale:       00000002:B894E76A
(XEN) .... Wall Clock:  1109504276s 190000us
(XEN) PCI: PCI BIOS revision 2.10 entry at 0xfb5c0, last bus=1
(XEN) PCI: Using configuration type 1
(XEN) PCI: Probing PCI hardware
(XEN) PCI: Probing PCI hardware (bus 00)
(XEN) PCI: Using IRQ router PIIX/ICH [8086/7110] at 00:07.0
(XEN) PCI->APIC IRQ transform: (B0,I9,P0) -> 19
(XEN) PCI->APIC IRQ transform: (B0,I13,P0) -> 17
(XEN) PCI->APIC IRQ transform: (B0,I19,P0) -> 18
(XEN) PCI->APIC IRQ transform: (B0,I19,P1) -> 18
(XEN) PCI->APIC IRQ transform: (B1,I0,P0) -> 16
(XEN) Limiting direct PCI/PCI transfers.
(XEN) mtrr: v2.0 (20020519)
(XEN) mtrr: your CPUs had inconsistent fixed MTRR settings
(XEN) mtrr: probably your BIOS does not setup all CPUs.
(XEN) mtrr: corrected configuration.
(XEN) *** LOADING DOMAIN 0 ***
[...]


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