From: Eric Auger <eric.auger@redhat.com>
To: eric.auger@redhat.com, eric.auger.pro@gmail.com,
christoffer.dall@linaro.org, marc.zyngier@arm.com,
robin.murphy@arm.com, alex.williamson@redhat.com,
will.deacon@arm.com, joro@8bytes.org, tglx@linutronix.de,
jason@lakedaemon.net, linux-arm-kernel@lists.infradead.org
Cc: kvm@vger.kernel.org, drjones@redhat.com,
linux-kernel@vger.kernel.org, pranav.sawargaonkar@gmail.com,
iommu@lists.linux-foundation.org, punit.agrawal@arm.com,
diana.craciun@nxp.com
Subject: [RFC v3 03/10] iommu: Add new reserved IOMMU attributes
Date: Tue, 15 Nov 2016 13:09:16 +0000 [thread overview]
Message-ID: <1479215363-2898-4-git-send-email-eric.auger@redhat.com> (raw)
In-Reply-To: <1479215363-2898-1-git-send-email-eric.auger@redhat.com>
IOMMU_RESV_NOMAP is used to tag reserved IOVAs that are not
supposed to be IOMMU mapped. IOMMU_RESV_MSI tags IOVAs
corresponding to MSIs that need to be IOMMU mapped.
IOMMU_RESV_MASK allows to check if the IOVA is reserved.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
include/linux/iommu.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 7f6ebd0..02cf565 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -32,6 +32,10 @@
#define IOMMU_NOEXEC (1 << 3)
#define IOMMU_MMIO (1 << 4) /* e.g. things like MSI doorbells */
+#define IOMMU_RESV_MASK 0x300 /* Reserved IOVA mask */
+#define IOMMU_RESV_NOMAP (1 << 8) /* IOVA that cannot be mapped */
+#define IOMMU_RESV_MSI (1 << 9) /* MSI region transparently mapped */
+
struct iommu_ops;
struct iommu_group;
struct bus_type;
--
1.9.1
next prev parent reply other threads:[~2016-11-15 13:11 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-15 13:09 [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions Eric Auger
2016-11-15 13:09 ` [RFC v3 01/10] iommu/dma: Allow MSI-only cookies Eric Auger
2016-11-15 13:09 ` [RFC v3 02/10] iommu: Rename iommu_dm_regions into iommu_resv_regions Eric Auger
2016-12-06 17:30 ` Robin Murphy
2016-11-15 13:09 ` Eric Auger [this message]
2016-12-06 17:28 ` [RFC v3 03/10] iommu: Add new reserved IOMMU attributes Robin Murphy
2016-11-15 13:09 ` [RFC v3 04/10] iommu: iommu_alloc_resv_region Eric Auger
2016-11-29 16:11 ` Joerg Roedel
2016-11-30 9:41 ` Auger Eric
2016-12-06 17:30 ` Robin Murphy
2016-11-15 13:09 ` [RFC v3 05/10] iommu: Do not map reserved regions Eric Auger
2016-12-06 17:36 ` Robin Murphy
2016-12-07 15:15 ` Auger Eric
2016-11-15 13:09 ` [RFC v3 06/10] iommu: iommu_get_group_resv_regions Eric Auger
2016-12-06 18:13 ` Robin Murphy
2016-12-07 15:13 ` Auger Eric
2016-11-15 13:09 ` [RFC v3 07/10] iommu: Implement reserved_regions iommu-group sysfs file Eric Auger
2016-11-15 13:09 ` [RFC v3 08/10] iommu/vt-d: Implement reserved region get/put callbacks Eric Auger
2016-11-15 13:09 ` [RFC v3 09/10] iommu/arm-smmu: " Eric Auger
2016-12-06 18:55 ` Robin Murphy
2016-12-07 15:02 ` Auger Eric
2016-12-07 18:24 ` Robin Murphy
2016-12-08 7:57 ` Auger Eric
2016-11-15 13:09 ` [RFC v3 10/10] vfio/type1: Get MSI cookie Eric Auger
2016-11-18 5:34 ` [RFC v3 00/10] KVM PCIe/MSI passthrough on ARM/ARM64 and IOVA reserved regions Bharat Bhushan
2016-11-18 8:33 ` Auger Eric
2016-11-30 9:49 ` Auger Eric
2016-11-30 10:04 ` Ganapatrao Kulkarni
2016-11-30 10:14 ` Auger Eric
2016-11-30 10:52 ` Ganapatrao Kulkarni
2016-11-30 13:57 ` Robin Murphy
2016-11-30 10:37 ` Will Deacon
2016-11-30 14:08 ` Auger Eric
2016-11-30 14:41 ` Robin Murphy
2016-12-07 18:52 ` Shanker Donthineni
2016-12-08 7:34 ` Auger Eric
2016-12-08 3:56 ` Bharat Bhushan
2016-12-08 9:36 ` Auger Eric
2016-12-08 13:14 ` Robin Murphy
2016-12-08 13:36 ` Auger Eric
2016-12-08 15:46 ` Robin Murphy
2016-12-08 17:01 ` Alex Williamson
2016-12-08 18:42 ` Robin Murphy
2016-12-11 2:05 ` Don Dutile
2016-12-12 8:12 ` Auger Eric
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