On Tue, Sep 28, 2010 at 7:56 AM, Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx> wrote:
>> git clone git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git
>>
>> Initialized empty Git repository in
>> /import/kaan/bedge/src/xen/kernel/pv-ops/xen/.git/
>> remote: error: Could not read 59eab2f8f04147c5aadc99f2034ca7e5b81e890f
>> remote: fatal: Failed to traverse parents of commit
>> 979e121cb348add17ed8171bf447b27a3a9d1be3
>> remote: aborting due to possible repository corruption on the remote side.
>> fatal: early EOF
>> fatal: index-pack failed
>
> That should have worked, but it looks as my git repo is busted. Let me fix
> that
> and once it done you should be able to do
>
> cd xen
> git checkout origin/pv/pcifront-2.6.32
That's working now, will test today.
>
>>
>> >
>> > It has the latest pcifront driver but without the PVonHVM enhancments
>> > so we can try to eliminate the PvONHVM logic out of the picture.
>> >
>> >>
>> >> >
>> >> > > - the interrupt does happen. But the interrupt service routine of
>> >> > > tachyon driver doesn't detect any interrupt status related to this
>> >> > > interrupt, which inhibits the tachyon chip from coming on-line. And
>> >> > > there are high count of tachyon interrupt in /proc/interrupts
>> >> >
>> >> > Is it checking the PCI_STATUS_INTERRUPT or the appropiate register
>> >> > in the MMIO BAR?
>> >> >
>> >>
>> >> The driver would check the appropriate register (tachyon registers) in
>> >> the MMIO to determine the source of interrupts.
>> >
>> > OK, so that isn't it. Is there anything at these vectors:
>> > 7c, 7d, 7e, and 7f? When you use xen debug-keys 'i' or 'q' it should give
>> > you
>> > an inkling what device this is set for.
>>
>> When I run a distro kernel in hvm mode, I get the expected irq mappings:
>>
>> 'i' - Note 66 - 69
>> (XEN) IRQ: 66 affinity:ffffffff,ffffffff,ffffffff,ffffffff vec:3a
>> type=PCI-MSI status=00000010 in-flight=0
>> domain-list=10:127(----),
>> (XEN) IRQ: 67 affinity:ffffffff,ffffffff,ffffffff,ffffffff vec:42
>> type=PCI-MSI status=00000010 in-flight=0
>> domain-list=10:126(----),
>> (XEN) IRQ: 68 affinity:ffffffff,ffffffff,ffffffff,ffffffff vec:4a
>> type=PCI-MSI status=00000010 in-flight=0
>> domain-list=10:125(----),
>> (XEN) IRQ: 69 affinity:ffffffff,ffffffff,ffffffff,ffffffff vec:52
>> type=PCI-MSI status=00000010 in-flight=0
>> domain-list=10:124(----)
>>
>
> What does cat /proc/interrupts (don't do the grep) for this HVM guest?
Here's what's reported for the domU in hvm mode:
~ # cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
0: 28 0 0 0 0 0
IO-APIC-edge timer
1: 18 0 0 0 0 0
IO-APIC-edge i8042
6: 2 0 0 0 0 0
IO-APIC-edge floppy
7: 0 0 0 0 0 0
IO-APIC-edge parport0
8: 0 0 0 0 0 0
IO-APIC-edge rtc0
9: 0 0 0 0 0 0
IO-APIC-fasteoi acpi
12: 2 0 0 0 0 0
IO-APIC-edge i8042
14: 67771 0 0 0 0 0
IO-APIC-edge ata_piix
15: 3044 0 0 0 0 0
IO-APIC-edge ata_piix
23: 22 0 0 0 0 0
IO-APIC-fasteoi uhci_hcd:usb1
32: 953 0 0 0 0 0
IO-APIC-fasteoi eth0
NMI: 0 0 0 0 0 0
Non-maskable interrupts
LOC: 26320 15814 13000 13825 11125 10458
Local timer interrupts
SPU: 0 0 0 0 0 0
Spurious interrupts
PMI: 0 0 0 0 0 0
Performance monitoring interrupts
PND: 0 0 0 0 0 0
Performance pending work
RES: 78730 21174 25236 34071 25122 26924
Rescheduling interrupts
CAL: 90 806 808 488 587 392
Function call interrupts
TLB: 3429 2358 3475 2522 3986 2684
TLB shootdowns
TRM: 0 0 0 0 0 0
Thermal event interrupts
THR: 0 0 0 0 0 0
Threshold APIC interrupts
MCE: 0 0 0 0 0 0
Machine check exceptions
MCP: 2 2 2 2 2 2
Machine check polls
ERR: 0
MIS: 0
~ # lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
00:01.2 USB Controller: Intel Corporation 82371SB PIIX3 USB
[Natoma/Triton II] (rev 01)
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01)
00:02.0 VGA compatible controller: Cirrus Logic GD 5446
00:03.0 Class ff80: XenSource, Inc. Xen Platform Device (rev 01)
00:04.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 20)
00:10.0 Fibre Channel: PMC-Sierra Inc. Device 8032 (rev 05)
00:11.0 Fibre Channel: PMC-Sierra Inc. Device 8032 (rev 05)
00:12.0 Fibre Channel: PMC-Sierra Inc. Device 8032 (rev 05)
00:13.0 Fibre Channel: PMC-Sierra Inc. Device 8032 (rev 05)
>>
>> 'q'
>> (XEN) Interrupts { 32, 41-42, 47, 124-127 }
>
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