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Re: [Qemu-devel] [PATCH] pci: add standard bridge device
From: |
Wen Congyang |
Subject: |
Re: [Qemu-devel] [PATCH] pci: add standard bridge device |
Date: |
Tue, 06 Sep 2011 11:06:23 +0800 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100413 Fedora/3.0.4-2.fc13 Thunderbird/3.0.4 |
At 09/04/2011 04:25 PM, Avi Kivity Write:
> On 09/02/2011 05:56 AM, Wen Congyang wrote:
>> >
>> > You could use something like kvm-unit-tests.git to write a simple test
>> > that sets up a BAR (say from hw/ivshmem.c), writes and reads to see
>> that
>> > it is visible, programs the bridge to filter part of the BAR out, then
>> > writes and reads again to verify that the correct part is filtered
>> out.
>>
>> I am testing ivshmem now. But I do not know how to access the memory
>> specified in the BAR.
>>
>>
>
> Use the uio driver -
> http://docs.blackfin.uclinux.org/kernel/generated/uio-howto/. You just
> mmap() the BAR from userspace and play with it.
When I try to bind ivshmem to uio_pci_generic, I get the following messages:
uio_pci_generic 0000:01:01.0: No IRQ assigned to device: no support for
interrupts?
Thanks
Wen Congyang
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Wen Congyang, 2011/09/01
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Wen Congyang, 2011/09/01
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Avi Kivity, 2011/09/04
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device,
Wen Congyang <=
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Avi Kivity, 2011/09/06
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Wen Congyang, 2011/09/07
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Michael S. Tsirkin, 2011/09/07
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Wen Congyang, 2011/09/08
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Wen Congyang, 2011/09/08
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Gerd Hoffmann, 2011/09/08
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Wen Congyang, 2011/09/08
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Michael S. Tsirkin, 2011/09/08
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Wen Congyang, 2011/09/08
- Re: [Qemu-devel] [PATCH] pci: add standard bridge device, Michael S. Tsirkin, 2011/09/08