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Re: [Qemu-devel] [RFC v4 08/13] hw/vfio/common: Add EXEC_FLAG to VFIO DM
From: |
Will Deacon |
Subject: |
Re: [Qemu-devel] [RFC v4 08/13] hw/vfio/common: Add EXEC_FLAG to VFIO DMA mappings |
Date: |
Mon, 7 Jul 2014 13:49:56 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Mon, Jul 07, 2014 at 01:27:18PM +0100, Eric Auger wrote:
> From: Alvise Rigo <address@hidden>
>
> The flag is mandatory for the ARM SMMU so we always add it if the MMIO
> handles it.
I though the logic of this flag was changing (so that you request an NX
mapping instead), so I'd hold off on this change until the kernel has
decided what it's doing.
Also, the ARM SMMU doesn't mandate any flags, you probably need this as
a result of using a PL330, which is an odd case of a DMA master that
spits out EXEC transactions (instruction fetch).
Will
- Re: [Qemu-devel] [RFC v4 03/13] hw/vfio/pci: Remove unneeded include files, (continued)
- [Qemu-devel] [RFC v4 04/13] hw/vfio/pci: introduce VFIODevice, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 05/13] hw/vfio/pci: Introduce VFIORegion, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 07/13] hw/vfio: create common module, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 06/13] hw/vfio/pci: split vfio_get_device, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 08/13] hw/vfio/common: Add EXEC_FLAG to VFIO DMA mappings, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 09/13] hw/vfio/platform: add vfio-platform support, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 11/13] hw/vfio/platform: Add irqfd support, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 10/13] hw/intc/arm_gic_kvm: enable irqfd and set routing table, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 12/13] hw/vfio/platform: add default dt generation for vfio device, Eric Auger, 2014/07/07
- [Qemu-devel] [RFC v4 13/13] hw/vfio: add an example calxeda_xgmac, Eric Auger, 2014/07/07