[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability |
Date: |
Mon, 6 Jul 2015 10:11:18 +0100 |
On 6 July 2015 at 10:06, Michael S. Tsirkin <address@hidden> wrote:
> On Mon, Jul 06, 2015 at 10:46:31AM +0200, Paolo Bonzini wrote:
>> Why host endian and not device (in this case little) endian?
> It's the endian of the originator of the transaction.
> And emulated device code is all compiled in host endian-ness.
But address_space_rw() is just the "memcpy bytes to the
target's memory" operation -- if you have a pile of bytes
then there are no endianness concerns. If you don't have
a pile of bytes then you need to know the structure of
the data you're DMAing around, and you should probably
have a loop doing things with the specify-the-width functions.
thanks
-- PMM
- [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/02
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Paolo Bonzini, 2015/07/02
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/02
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Paolo Bonzini, 2015/07/02
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/04
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Paolo Bonzini, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Paolo Bonzini, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability,
Peter Maydell <=
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Peter Maydell, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Peter Maydell, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Paolo Bonzini, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Michael S. Tsirkin, 2015/07/06
- Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Paolo Bonzini, 2015/07/06
Re: [Qemu-devel] [PATCH] virtio-pci: implement cfg capability, Gerd Hoffmann, 2015/07/03