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[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver |
Date: |
Sun, 28 Mar 2010 12:40:06 +0300 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Sun, Mar 28, 2010 at 11:02:11AM +0300, Avi Kivity wrote:
> On 03/28/2010 10:47 AM, Michael S. Tsirkin wrote:
>>>
>>>> Maybe irqcontrol could be extended?
>>>>
>>>>
>>> What's irqcontrol?
>>>
>> uio accepts 32 bit writes to the char device file. We can encode
>> the fd number there, and use the high bit to signal assign/deassign.
>>
>
> Ugh. Very unexpandable.
It currently fails on any non-4 byte write.
So if we need more bits in the future we can always teach it
about e.g. 8 byte writes.
Do you think it's worth it doing it now already, and using
8 byte writes for msi mapping?
> --
> error compiling committee.c: too many arguments to function
[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Avi Kivity, 2010/03/25
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Cam Macdonell, 2010/03/25
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Avi Kivity, 2010/03/25
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Cam Macdonell, 2010/03/26
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Avi Kivity, 2010/03/27
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Michael S. Tsirkin, 2010/03/28
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Avi Kivity, 2010/03/28
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver,
Michael S. Tsirkin <=
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Avi Kivity, 2010/03/28
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Michael S. Tsirkin, 2010/03/28
- [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Avi Kivity, 2010/03/28
- Re: [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Jamie Lokier, 2010/03/28
- Re: [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, malc, 2010/03/28
[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Cam Macdonell, 2010/03/28
[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Avi Kivity, 2010/03/29
[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Cam Macdonell, 2010/03/30
[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Michael S. Tsirkin, 2010/03/31
[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver, Michael S. Tsirkin, 2010/03/25