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[Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage |
Date: |
Tue, 29 Sep 2009 10:54:50 +0200 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Tue, Sep 29, 2009 at 09:22:53AM +0200, Avi Kivity wrote:
> On 09/29/2009 08:58 AM, Michael S. Tsirkin wrote:
>> Using bar per feature we'll quickly run out of BARs.
>> We already use a BAR for MSI-X - let's add
>> ATA identity there?
>>
> Mixing unrelated features will quickly cause confusion.
Note if we ever switch to 64 bit BARs, we'll only have 3 of these
available, so the ID would be using the last free one.
We can just as well plan ahead for when we'll add another feature?
I agree fixed offsets are messy though. I previously proposed storing
the offset to the identity data in an i/o register. This will let each
implementation lay out this data in an optimal manner, without
confusion.
> --
> Do not meddle in the internals of kernels, for they are subtle and quick to
> panic.
- Re: [Qemu-devel] Re: [PATCH] qemu: make virtio-blk PCI compliant by default, (continued)
- Re: [Qemu-devel] Re: [PATCH] qemu: make virtio-blk PCI compliant by default, john cooper, 2009/09/22
- Re: [Qemu-devel] Re: [PATCH] qemu: make virtio-blk PCI compliant by default, Anthony Liguori, 2009/09/22
- Re: [Qemu-devel] Re: [PATCH] qemu: make virtio-blk PCI compliant by default, john cooper, 2009/09/23
- [Qemu-devel] [PATCH 0/2] fix virtio_blk serial pci config breakage, john cooper, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Michael S. Tsirkin, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Avi Kivity, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage,
Michael S. Tsirkin <=
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Avi Kivity, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Anthony Liguori, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Michael S. Tsirkin, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Anthony Liguori, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Avi Kivity, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Michael S. Tsirkin, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Anthony Liguori, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Michael S. Tsirkin, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Rusty Russell, 2009/09/29
- [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage, Anthony Liguori, 2009/09/29