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Re: [Xen-devel] [GIT PULL] Xen updates



Wednesday, October 27, 2010, 9:29:32 PM, you wrote:

>  On 10/27/2010 12:22 PM, Sander Eikelenboom wrote:
>> Yes this enables the msi(-x) interrupts ! Thanks
>> I will give the problem with the bios option another try as well.
>>
>> What i was wondering .. though ..
>> Devices using normal interrupts generally get a low IRQ number
>> Devices with MSI a higher, but MSI-X seem to get a low IRQ number as well, 
>> is this expected ?

> I think that's showing you what gsi you would get if you weren't using
> msi.  What does /proc/interrupts show?

>     J

Ah ok you are (of course) completely right thx !
What strikes me now .. is that when i used this xhci controller passed through 
to a domU i:
a) saw only one IRQ/vector coupled to xhci_hcd in the /proc/interrupts
b) i don't see them being counted now in the dom0 although i use the controller 
(i the domU this caused +/- 8000 interrupts a second .. so i should be seeing 
something else the 0 i assume.

--
Sander


            CPU0       CPU1       CPU2       CPU3
   1:          8          0          0          0  xen-pirq-ioapic-edge  i8042
   8:          0          0          0          0  xen-pirq-ioapic-edge  rtc0
   9:          0          0          0          0  xen-pirq-ioapic-level  acpi
  12:        103          0          0          0  xen-pirq-ioapic-edge  i8042
  16:          0          0          0          0  xen-pirq-ioapic-level  
uhci_hcd:usb3
  18:          0          0          0          0  xen-pirq-ioapic-level  
ehci_hcd:usb1, uhci_hcd:usb5, uhci_hcd:usb8
  19:          0          0          0          0  xen-pirq-ioapic-level  
uhci_hcd:usb7
  21:          0          0          0          0  xen-pirq-ioapic-level  
uhci_hcd:usb4
  23:      73410          0          0          0  xen-pirq-ioapic-level  
ehci_hcd:usb2, uhci_hcd:usb6
 990:          0          0          0          0   xen-dyn-event     
evtchn:xenstored
 991:        188          0          0          0   xen-dyn-event     
evtchn:xenstored
 992:      10583          0          0          0  xen-pirq-msi       eth1
 993:          1          0          0          0  xen-pirq-msi
 994:          0          0          0          0  xen-pirq-msi-x     xhci_hcd
 995:          0          0          0          0  xen-pirq-msi-x     xhci_hcd
 996:          0          0          0          0  xen-pirq-msi-x     xhci_hcd
 997:          0          0          0          0  xen-pirq-msi-x     xhci_hcd
 998:          1          0          0          0  xen-pirq-msi-x     xhci_hcd
1000:      51648          0          0          0  xen-pirq-msi       ahci
1001:          1          0          0          0  xen-pirq-msi       i915
1002:          0          0          0          0  xen-percpu-virq      
hvc_console
1003:        133          0          0          0   xen-dyn-event     xenbus
1004:          0          0          0      15729  xen-percpu-ipi       
callfuncsingle3
1005:          0          0          0          0  xen-percpu-virq      debug3
1006:          0          0          0        538  xen-percpu-ipi       
callfunc3
1007:          0          0          0      24048  xen-percpu-ipi       resched3
1008:          0          0          0     525075  xen-percpu-virq      timer3
1009:          0          0      19569          0  xen-percpu-ipi       
callfuncsingle2
1010:          0          0          0          0  xen-percpu-virq      debug2
1011:          0          0        451          0  xen-percpu-ipi       
callfunc2
1012:          0          0      23590          0  xen-percpu-ipi       resched2
1013:          0          0     523891          0  xen-percpu-virq      timer2
1014:          0      13911          0          0  xen-percpu-ipi       
callfuncsingle1
1015:          0          0          0          0  xen-percpu-virq      debug1
1016:          0        563          0          0  xen-percpu-ipi       
callfunc1
1017:          0      22079          0          0  xen-percpu-ipi       resched1
1018:          0     519767          0          0  xen-percpu-virq      timer1
1019:       1445          0          0          0  xen-percpu-ipi       
callfuncsingle0
1020:          0          0          0          0  xen-percpu-virq      debug0
1021:        395          0          0          0  xen-percpu-ipi       
callfunc0
1022:      22182          0          0          0  xen-percpu-ipi       resched0
1023:     583133          0          0          0  xen-percpu-virq      timer0
 NMI:          0          0          0          0   Non-maskable interrupts
 LOC:          0          0          0          0   Local timer interrupts
 SPU:          0          0          0          0   Spurious interrupts
 PMI:          0          0          0          0   Performance monitoring 
interrupts
 IWI:          0          0          0          0   IRQ work interrupts
 RES:      22182      22079      23590      24048   Rescheduling interrupts
 CAL:       1840      14474      20020      16268   Function call interrupts
 TLB:          0          0          0          0   TLB shootdowns
 TRM:          0          0          0          0   Thermal event interrupts
 THR:          0          0          0          0   Threshold APIC interrupts
 MCE:          0          0          0          0   Machine check exceptions
 MCP:          0          0          0          0   Machine check polls
 ERR:          0
 MIS:          0



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