Re: [Qemu-devel] [PATCH v2 0/5]: Convert pci_info() to QObject

[Blue Swirl <blauwirbel@gmail.com>]

On Wed, Jan 20, 2010 at 6:11 PM, Luiz Capitulino <lcapitulino@redhat.com> wrote:
> On Wed, 20 Jan 2010 18:57:56 +0100
> Markus Armbruster <armbru@redhat.com> wrote:
>
>> Luiz Capitulino <lcapitulino@redhat.com> writes:
>>
>> >  Hi,
>> >
>> >  This new version addresses Markus's comments.
>> >
>> > changelog
>> > ---------
>> >
>> > V1 -> V2
>> >
>> > - Make class_info's key 'desc' optional
>> > - Better indentation
>> > - Doc fixes
>> >
>> > V0 -> V1
>> >
>> > - Coding style fixes
>> > - Make 'BAR' and 'IRQ' keys lowercase
>> > - Add 'irq' key to the documentation
>> >
>> >  Thanks.
>>
>> Looks good, although one comment still applies: PATCH 3/5 regresses info
>> pci, 4/5 and 5/5 fix it.  Do we care?  They're separate because they're
>> untested.
>
>  There are two problems here, which apply for those whom emulate
> the hardware:
>
> 1. 'info pci' output will brake with git bisect
>
> 2. As the code is untested, it might be broken
>
>  Only two 2 seems serious.
>
>  Michael, does the sparc image on qemu.org have the hardware
> in question (pci bridge)?

Sparc64 has two Simba bridges, but currently they are broken so there
are no devices behind them. In addition there should be a DEC 21154
bridge.

There is no Sparc64 test image yet (very few Sparc32 machines did have
any PCI and we don't emulate them), but you can test the output
without any images:

qemu-system-sparc64 -L pc-bios -S -monitor stdio
QEMU 0.12.50 monitor - type 'help' for more information
(qemu) info pci
  Bus  0, device   0, function 0:
    Host bridge: PCI device 108e:a000
      id ""
  Bus  0, device   1, function 0:
    PCI bridge: PCI device 108e:5000
      BUS 0.
      secondary bus 0.
      subordinate bus 0.
      IO range [0x0000, 0x0fff]
      memory range [0x00000000, 0x000fffff]
      prefetchable memory range [0x00000000, 0x000fffff]
      id ""
  Bus  0, device   1, function 1:
    PCI bridge: PCI device 108e:5000
      BUS 0.
      secondary bus 0.
      subordinate bus 0.
      IO range [0x0000, 0x0fff]
      memory range [0x00000000, 0x000fffff]
      prefetchable memory range [0x00000000, 0x000fffff]
      id ""
  Bus  0, device   2, function 0:
    VGA controller: PCI device 1234:1111
      BAR0: 32 bit prefetchable memory at 0xffffffffffffffff [0x007ffffe].
      id ""
  Bus  0, device   3, function 0:
    Bridge: PCI device 108e:1000
      BAR0: 32 bit memory at 0xffffffffffffffff [0x00fffffe].
      BAR1: 32 bit memory at 0xffffffffffffffff [0x007ffffe].
      id ""
  Bus  0, device   4, function 0:
    Ethernet controller: PCI device 10ec:8029
      IRQ 0.
      BAR0: I/O at 0xffffffffffffffff [0x00fe].
      id ""
  Bus  0, device   5, function 0:
    IDE controller: PCI device 1095:0646
      IRQ 0.
      BAR0: I/O at 0xffffffffffffffff [0x0006].
      BAR1: I/O at 0xffffffffffffffff [0x0002].
      BAR2: I/O at 0xffffffffffffffff [0x0006].
      BAR3: I/O at 0xffffffffffffffff [0x0002].
      BAR4: I/O at 0xffffffffffffffff [0x000e].
      id ""
(qemu) c
(qemu) info pci
  Bus  0, device   0, function 0:
    Host bridge: PCI device 108e:a000
      id ""
  Bus  0, device   1, function 0:
    PCI bridge: PCI device 108e:5000
      BUS 0.
      secondary bus 0.
      subordinate bus 0.
      IO range [0x0000, 0x0fff]
      memory range [0x00000000, 0x000fffff]
      prefetchable memory range [0x00000000, 0x000fffff]
      id ""
  Bus  0, device   1, function 1:
    PCI bridge: PCI device 108e:5000
      BUS 0.
      secondary bus 0.
      subordinate bus 0.
      IO range [0x0000, 0x0fff]
      memory range [0x00000000, 0x000fffff]
      prefetchable memory range [0x00000000, 0x000fffff]
      id ""
  Bus  0, device   2, function 0:
    VGA controller: PCI device 1234:1111
      BAR0: 32 bit prefetchable memory at 0x00800000 [0x00ffffff].
      id ""
  Bus  0, device   3, function 0:
    Bridge: PCI device 108e:1000
      BAR0: 32 bit memory at 0x01000000 [0x01ffffff].
      BAR1: 32 bit memory at 0x02000000 [0x027fffff].
      id ""
  Bus  0, device   4, function 0:
    Ethernet controller: PCI device 10ec:8029
      IRQ 0.
      BAR0: I/O at 0x0400 [0x04ff].
      id ""
  Bus  0, device   5, function 0:
    IDE controller: PCI device 1095:0646
      IRQ 1.
      BAR0: I/O at 0x0500 [0x0507].
      BAR1: I/O at 0x0580 [0x0583].
      BAR2: I/O at 0x0600 [0x0607].
      BAR3: I/O at 0x0680 [0x0683].
      BAR4: I/O at 0x0700 [0x070f].
      id ""