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Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to u
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers |
Date: |
Wed, 20 Jun 2012 11:54:30 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.5) Gecko/20120601 Thunderbird/10.0.5 |
Hi,
> [ lots of interesting background info snipped ]
> It's all doable, it's also a bit tricky, potentially quite a bit of
> code, new KVM/qemu interfaces, etc... for a problem that's going to be a
> non-issue pretty much 99.9% of the time :-) We still need to address it,
> but I haven't convinced myself yet that I have come up with the best
> solution :-)
Yea, sure, it's in the "nice-to-have" not "must-have" category. And
adding complex code which almost never actually runs needs some care
indeed. Not having that for the initial merge is perfectly fine with
me, just wanted to know what dragons might be lurking there ;)
Oh, and: Acked-by: Gerd Hoffmann <address@hidden>
cheers,
Gerd
- Re: [Qemu-devel] [PATCH 03/13] iommu: Add universal DMA helper functions, (continued)
- [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, Benjamin Herrenschmidt, 2012/06/19
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, Gerd Hoffmann, 2012/06/19
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, Benjamin Herrenschmidt, 2012/06/19
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, David Gibson, 2012/06/19
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, Benjamin Herrenschmidt, 2012/06/19
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, David Gibson, 2012/06/20
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, Gerd Hoffmann, 2012/06/20
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers, Benjamin Herrenschmidt, 2012/06/20
- Re: [Qemu-devel] [PATCH 07/13] usb: Convert usb_packet_{map, unmap} to universal DMA helpers,
Gerd Hoffmann <=
[Qemu-devel] [PATCH 11/13] iommu: Allow PCI to use IOMMU infrastructure, Benjamin Herrenschmidt, 2012/06/19
[Qemu-devel] [PATCH 13/13] Add a memory barrier to DMA functions, Benjamin Herrenschmidt, 2012/06/19
[Qemu-devel] [PATCH 12/13] pseries: Implement IOMMU and DMA for PAPR PCI devices, Benjamin Herrenschmidt, 2012/06/19
[Qemu-devel] [PATCH 10/13] pseries: Convert sPAPR TCEs to use generic IOMMU infrastructure, Benjamin Herrenschmidt, 2012/06/19
[Qemu-devel] [PATCH 02/13] Implement cpu_physical_memory_set(), Benjamin Herrenschmidt, 2012/06/19