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Re: [Xen-devel] [PATCH] xen: implement vector callback for evtchn delive

from [Boris Derzhavets] [Permanent Link][Original]
To: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] xen: implement vector callback for evtchn delivery
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Thu, 27 May 2010 06:06:08 -0700 (PDT)
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
Delivery-date: Thu, 27 May 2010 06:07:15 -0700
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root@LucidSRV:~# cat /proc/interrupts
           CPU0       CPU1      
  0:         29          0   IO-APIC-edge      timer
  1:        107          0   IO-APIC-edge      i8042
  4:          1          0   IO-APIC-edge   
  6:          2          0   IO-APIC-edge      floppy
  8:          0          0   IO-APIC-edge      rtc0
  9:          0          0   IO-APIC-fasteoi   acpi
 12:        187        496   IO-APIC-edge      i8042
 14:          0          0   IO-APIC-edge      ata_piix
 15:        933          0   IO-APIC-edge      ata_piix
 16:        293          0   xen-dyn-event     xenbus
 17:       5059          0   xen-dyn-event     blkif
 18:          0          0   xen-dyn-event     blkif
 19:         72          0   xen-dyn-event     eth0
 23:          0          0   IO-APIC-fasteoi   uhci_hcd:usb1
 36:          0          0   IO-APIC-fasteoi   Ensoniq AudioPCI
NMI:          0          0   Non-maskable interrupts
LOC:       2767       2901   Local timer interrupts
SPU:          0          0   Spurious interrupts
PMI:          0          0   Performance monitoring interrupts
PND:          0          0   Performance pending work
PLT:       5211          0   Platform interrupts
RES:       1189       1949   Rescheduling interrupts
CAL:        130         89   Function call interrupts
TLB:        230        179   TLB shootdowns
TRM:          0          0   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
MCE:          0          0   Machine check exceptions
MCP:          1          1   Machine check polls
ERR:          0
MIS:          0

Boris.

--- On Thu, 5/27/10, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> wrote:

From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] xen: implement vector callback for evtchn delivery
To: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxxx>, "Stefano Stabellini" <Stefano.Stabellini@xxxxxxxxxxxxx>
Date: Thursday, May 27, 2010, 8:06 AM

On Thu, 27 May 2010, Boris Derzhavets wrote:
> Seems to done right. Dmesg log for PV on HVM (Ubuntu Lucid)  :-
>
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 2.6.34 (root@LucidSRV) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #2 SMP Thu May 27
> 09:56:26 MSD 2010
> [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.34 root=UUID=8ab02f1a-d6bd-4829-9732-20440acf320f ro
> console=tty0
> [    0.000000] BIOS-provided physical RAM map:
> [    0.000000]  BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
> [    0.000000]  BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
> [    0.000000]  BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
> [    0.000000]  BIOS-e820: 0000000000100000 - 0000000080000000 (usable)
> [    0.000000]  BIOS-e820: 00000000fc000000 - 0000000100000000 (reserved)
> [    0.000000] NX (Execute Disable) protection: active
> [    0.000000] DMI 2.4 present.
> [    0.000000] e820 update range: 0000000000000000 - 0000000000001000 (usable) ==> (reserved)
> [    0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
> [    0.000000] No AGP bridge found
> [    0.000000] last_pfn = 0x80000 max_arch_pfn = 0x400000000
> [    0.000000] MTRR default type: write-back
> [    0.000000] MTRR fixed ranges enabled:
> [    0.000000]   00000-9FFFF write-back
> [    0.000000]   A0000-BFFFF write-combining
> [    0.000000]   C0000-FFFFF write-back
> [    0.000000] MTRR variable ranges enabled:
> [    0.000000]   0 base 0F0000000 mask FF8000000 uncachable
> [    0.000000]   1 base 0F8000000 mask FFC000000 uncachable
> [    0.000000]   2 disabled
> [    0.000000]   3 disabled
> [    0.000000]   4 disabled
> [    0.000000]   5 disabled
> [    0.000000]   6 disabled
> [    0.000000]   7 disabled
> [    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
> [    0.000000] e820 update range: 0000000000001000 - 0000000000010000 (usable) ==> (reserved)
> [    0.000000] Scanning 1 areas for low memory corruption
> [    0.000000] modified physical RAM map:
> [    0.000000]  modified: 0000000000000000 - 0000000000010000 (reserved)
> [    0.000000]  modified: 0000000000010000 - 000000000009fc00 (usable)
> [    0.000000]  modified: 000000000009fc00 - 00000000000a0000 (reserved)
> [    0.000000]  modified: 00000000000e0000 - 0000000000100000 (reserved)
> [    0.000000]  modified: 0000000000100000 - 0000000080000000 (usable)
> [    0.000000]  modified: 00000000fc000000 - 0000000100000000 (reserved)
> [    0.000000] initial memory mapped : 0 - 20000000
> [    0.000000] found SMP MP-table at [ffff8800000fbc60] fbc60
> [    0.000000] init_memory_mapping: 0000000000000000-0000000080000000
> [    0.000000]  0000000000 - 0080000000 page 2M
> [    0.000000] kernel direct mapping tables up to 80000000 @ 16000-19000
> [    0.000000] RAMDISK: 33f01000 - 37ff0000
> [    0.000000] ACPI: RSDP 00000000000ea020 00024 (v02    Xen)
> [    0.000000] ACPI: XSDT 00000000fc012cb0 00034 (v01    Xen      HVM 00000000 HVML 00000000)
> [    0.000000] ACPI: FACP 00000000fc012ad0 000F4 (v04    Xen      HVM 00000000 HVML 00000000)
> [    0.000000] ACPI: DSDT 00000000fc002c40 0FE0B (v02    Xen      HVM 00000000 INTL 20090123)
> [    0.000000] ACPI: FACS 00000000fc002c00 00040
> [    0.000000] ACPI: APIC 00000000fc012bd0 000D8 (v02    Xen      HVM 00000000 HVML 00000000)
> [    0.000000] ACPI: Local APIC address 0xfee00000
> [    0.000000] No NUMA configuration found
> [    0.000000] Faking a node at 0000000000000000-0000000080000000
> [    0.000000] Initmem setup node 0 0000000000000000-0000000080000000
> [    0.000000]   NODE_DATA [0000000001cb20c0 - 0000000001cb70bf]
> [    0.000000]  [ffffea0000000000-ffffea0001bfffff] PMD -> [ffff880002600000-ffff8800041fffff] on node 0
> [    0.000000] Zone PFN ranges:
> [    0.000000]   DMA      0x00000010 -> 0x00001000
> [    0.000000]   DMA32    0x00001000 -> 0x00100000
> [    0.000000]   Normal   empty
> [    0.000000] Movable zone start PFN for each node
> [    0.000000] early_node_map[2] active PFN ranges
> [    0.000000]     0: 0x00000010 -> 0x0000009f
> [    0.000000]     0: 0x00000100 -> 0x00080000
> [    0.000000] On node 0 totalpages: 524175
> [    0.000000]   DMA zone: 56 pages used for memmap
> [    0.000000]   DMA zone: 0 pages reserved
> [    0.000000]   DMA zone: 3927 pages, LIFO batch:0
> [    0.000000]   DMA32 zone: 7112 pages used for memmap
> [    0.000000]   DMA32 zone: 513080 pages, LIFO batch:31
> [    0.000000] ACPI: PM-Timer IO Port: 0x1f48
> [    0.000000] ACPI: Local APIC address 0xfee00000
> [    0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x08] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x0a] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x0c] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x0e] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x10] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x12] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x14] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x16] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x18] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x1a] disabled)
> [    0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x1c] disabled)
> [    0.000000] ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
> [    0.000000] IOAPIC[0]: apic_id 1, version 17, address 0xfec00000, GSI 0-47
> [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 low level)
> [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 low level)
> [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 low level)
> [    0.000000] ACPI: IRQ0 used by override.
> [    0.000000] ACPI: IRQ2 used by override.
> [    0.000000] ACPI: IRQ5 used by override.
> [    0.000000] ACPI: IRQ9 used by override.
> [    0.000000] ACPI: IRQ10 used by override.
> [    0.000000] ACPI: IRQ11 used by override.
> [    0.000000] Using ACPI (MADT) for SMP configuration information
> [    0.000000] SMP: Allowing 15 CPUs, 13 hotplug CPUs
> [    0.000000] nr_irqs_gsi: 48
> [    0.000000] Xen version 4.0.
> =>[    0.000000] Xen Platform PCI: I/O protocol version 1
> =>[    0.000000] Netfront and the Xen platform PCI driver have been compiled for this kernel: unplug emulated NICs.
> => [    0.000000] Blkfront and the Xen platform PCI driver have been compiled for this kernel: unplug emulated disks.
> =>[    0.000000] You might have to change the root device
> =>[    0.000000] from /dev/hd[a-d] to /dev/xvd[a-d]
> [    0.000000] in your root= kernel command line option
> [    0.000000] Xen doesn't support pvclock on HVM,disable pv timer
> [    0.000000] early_res array is doubled to 64 at [17180 - 1797f]
> ....
>
> "df -h" reports /dev/xvda(X) devices
>
>

everything seems fine, the callback mechanism seems to be working too
(even though I am not writing an explicit message about it, maybe I
should). Please post the output of 'cat /proc/interrupts' just to be
sure...

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