18 Oct
2021
18 Oct
'21
12:03 p.m.
Hello Joerg,
On Mon, 18 Oct 2021 12:25:38 +0200 Joerg Roedel joro@8bytes.org wrote:
On Fri, Oct 01, 2021 at 04:34:23PM +0200, Boris Brezillon wrote:
+/*
- Mapping is only accessed by the device behind the iommu. That means other
- devices or CPUs are not expected to access this physical memory region,
- and the MMU driver can safely restrict the shareability domain to the
- device itself.
- */
+#define IOMMU_DEVONLY (1 << 6)
I am not entirely happy with the name, how about
IOMMU_DEV_PRIVATE?
Works for me.
PRIV would conflict with IOMMU_PRIV (which should probably also be IOMMU_PRIVILEGED, but thats another problem).
Yeah, IOMMU_PRIV is confusing. I thought I could use that flag before realizing PRIV was for privileged not private, but I'll leave that to someone else :-).
Regards,
Boris