From: Eric Auger <eric.auger@linaro.org>
To: Alvise Rigo <a.rigo@virtualopensystems.com>,
Will Deacon <will.deacon@arm.com>
Cc: "peter.maydell@linaro.org" <peter.maydell@linaro.org>,
"kim.phillips@freescale.com" <kim.phillips@freescale.com>,
"eric.auger@st.com" <eric.auger@st.com>,
"patches@linaro.org" <patches@linaro.org>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"agraf@suse.de" <agraf@suse.de>,
"Bharat.Bhushan@freescale.com" <Bharat.Bhushan@freescale.com>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"stuart.yoder@freescale.com" <stuart.yoder@freescale.com>,
"a.motakis@virtualopensystems.com"
<a.motakis@virtualopensystems.com>,
"kvmarm@lists.cs.columbia.edu" <kvmarm@lists.cs.columbia.edu>,
"christoffer.dall@linaro.org" <christoffer.dall@linaro.org>
Subject: Re: [Qemu-devel] [RFC v4 08/13] hw/vfio/common: Add EXEC_FLAG to VFIO DMA mappings
Date: Mon, 07 Jul 2014 15:29:10 +0200 [thread overview]
Message-ID: <53BAA0A6.9040202@linaro.org> (raw)
In-Reply-To: <53BA9FB0.3070801@virtualopensystems.com>
On 07/07/2014 03:25 PM, Alvise Rigo wrote:
> Il 07/07/2014 14:49, Will Deacon ha scritto:
>> On Mon, Jul 07, 2014 at 01:27:18PM +0100, Eric Auger wrote:
>>> From: Alvise Rigo <a.rigo@virtualopensystems.com>
>>>
>>> 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.
>
> Yes, you are right.
> This patch is not needed anymore, in fact it was dropped in my last
> patch series.
> It should not be here, please ignore it.
OK. My apologies.
Best Regards
Eric
>
> Regards,
> alvise
>
>>
>> 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
>>
next prev parent reply other threads:[~2014-07-07 13:29 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-07 12:27 [Qemu-devel] [RFC v4 00/13] KVM platform device passthrough Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 01/13] vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 02/13] hw/vfio/pci: Rename VFIODevice into VFIOPCIDevice Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 03/13] hw/vfio/pci: Remove unneeded include files Eric Auger
2014-07-08 18:55 ` Alex Williamson
2014-07-23 9:59 ` Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 04/13] hw/vfio/pci: introduce VFIODevice Eric Auger
2014-07-08 22:41 ` Alex Williamson
2014-07-23 10:02 ` Eric Auger
2014-07-23 10:24 ` Peter Maydell
2014-07-23 11:40 ` Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 05/13] hw/vfio/pci: Introduce VFIORegion Eric Auger
2014-07-08 22:41 ` Alex Williamson
2014-07-23 13:50 ` Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 06/13] hw/vfio/pci: split vfio_get_device Eric Auger
2014-07-08 22:43 ` Alex Williamson
2014-07-24 9:51 ` Eric Auger
2014-07-24 10:25 ` Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 07/13] hw/vfio: create common module Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 08/13] hw/vfio/common: Add EXEC_FLAG to VFIO DMA mappings Eric Auger
2014-07-07 12:40 ` Peter Maydell
2014-07-07 12:49 ` Will Deacon
2014-07-07 13:25 ` Alvise Rigo
2014-07-07 13:29 ` Eric Auger [this message]
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 09/13] hw/vfio/platform: add vfio-platform support Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 10/13] hw/intc/arm_gic_kvm: enable irqfd and set routing table Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 11/13] hw/vfio/platform: Add irqfd support Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 12/13] hw/vfio/platform: add default dt generation for vfio device Eric Auger
2014-07-07 12:27 ` [Qemu-devel] [RFC v4 13/13] hw/vfio: add an example calxeda_xgmac Eric Auger
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