[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA |
Date: |
Sun, 2 Oct 2011 13:43:56 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Sun, Oct 02, 2011 at 01:28:37PM +0200, Alexander Graf wrote:
> >> Good point. Though this is really a virtio specific issue since
> >> other devices have explicit endianness (not guest dependent).
> >
> > Hmm, not entirely virtio specific, some devices use stX macros to do the
> > conversion. E.g. stw_be_phys and stl_le_phys are used in several
> > places.
>
> Yes, explicit endianness. Virtio is the only device type we support in QEMU
> that changes its endianness depending on the guest CPU. All other devices are
> independent of the guest CPU we're targeting.
>
>
> Alex
True I think, for pci devices. And virtio bypasses the iommu
anyway, so we don't need to worry about it. But the point is that it
makes sense to support endian-ness handling in the core.
--
MST
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Michael S. Tsirkin, 2011/10/02
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Avi Kivity, 2011/10/02
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Michael S. Tsirkin, 2011/10/02
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Avi Kivity, 2011/10/02
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Michael S. Tsirkin, 2011/10/02
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Avi Kivity, 2011/10/02
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Anthony Liguori, 2011/10/03
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, David Gibson, 2011/10/11
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Michael S. Tsirkin, 2011/10/12
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, David Gibson, 2011/10/13
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Michael S. Tsirkin, 2011/10/16
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, Avi Kivity, 2011/10/16
- Re: [Qemu-devel] [PATCH 1/9] Add stub functions for PCI device models to do PCI DMA, David Gibson, 2011/10/17