On Mon, Oct 20, 2014 at 04:39:15PM +0100, Will Deacon wrote:
> On Mon, Oct 13, 2014 at 02:06:15PM +0100, Antonios Motakis wrote:
> > This patch series applies to Joerg Roedel's iommu/next branch, commit
> > 09b5269a.
> > It replaces the IOMMU_EXEC flag used by the ARM SMMU driver to IOMMU_NOEXEC.
> > This is more enforceable, since the lack of the flag on hardware that
> > doesn't
> > support it implies that the target memory will be executable.
>
> Looks good to me; I'll take this via the arm-smmu tree and send it to Joerg
> along with anything else that gets queued for 3.19.
The 0-day builder spotted a new warning from this series:
drivers/iommu/amd_iommu.c: In function 'amd_iommu_capable':
>> drivers/iommu/amd_iommu.c:3409:2: warning: enumeration value
>> 'IOMMU_CAP_NOEXEC' not handled in switch [-Wswitch]
switch (cap) {
^
I fixed it with the patch below, but I'd appreciate you and Joerg taking
a look too.
Cheers,
Will
--->8
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 505a9adac2d5..3d78a8fb5a6a 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3411,6 +3411,8 @@ static bool amd_iommu_capable(enum iommu_cap cap)
return true;
case IOMMU_CAP_INTR_REMAP:
return (irq_remapping_enabled == 1);
+ case IOMMU_CAP_NOEXEC:
+ return false;
}
return false;
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