From: Eric Auger <eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
eric.auger.pro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
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Cc: drjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Manish.Jaggi-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org,
p.fedin-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
pranav.sawargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
yehuday-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org
Subject: [RFC 02/11] iommu: Introduce IOMMU_CAP_TRANSLATE_MSI capability
Date: Tue, 27 Sep 2016 20:48:29 +0000 [thread overview]
Message-ID: <1475009318-2617-3-git-send-email-eric.auger@redhat.com> (raw)
In-Reply-To: <1475009318-2617-1-git-send-email-eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Introduce a new IOMMU_CAP_TRANSLATE_MSI capability to check whether
the IOMMU translates MSI write transactions. This capability will be
checked on domain allocation to check the type of the domain that
shall be used.
Signed-off-by: Eric Auger <eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index ef6e047..5c2673a 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -97,6 +97,7 @@ enum iommu_cap {
transactions */
IOMMU_CAP_INTR_REMAP, /* IOMMU supports interrupt isolation */
IOMMU_CAP_NOEXEC, /* IOMMU_NOEXEC flag */
+ IOMMU_CAP_TRANSLATE_MSI, /* IOMMU translates MSI transactions */
};
/*
--
1.9.1
next prev parent reply other threads:[~2016-09-27 20:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-27 20:48 [RFC 00/11] KVM PCIe/MSI passthrough on ARM/ARM64: re-design with transparent MSI mapping Eric Auger
[not found] ` <1475009318-2617-1-git-send-email-eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-27 20:48 ` [RFC 01/11] iommu: Add iommu_domain_msi_geometry and DOMAIN_ATTR_MSI_GEOMETRY Eric Auger
2016-09-27 20:48 ` Eric Auger [this message]
2016-09-27 20:48 ` [RFC 03/11] iommu: Introduce IOMMU_DOMAIN_MIXED Eric Auger
2016-09-27 20:48 ` [RFC 04/11] iommu/dma: Allow MSI-only cookies Eric Auger
2016-09-27 20:48 ` [RFC 05/11] iommu/dma: iommu_dma_(un)map_mixed Eric Auger
[not found] ` <1475009318-2617-6-git-send-email-eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-09-30 13:24 ` Robin Murphy
[not found] ` <1b1b30b3-4199-9e18-362c-b8bc9d45277d-5wv7dgnIgG8@public.gmane.org>
2016-10-02 9:56 ` Christoffer Dall
2016-10-04 17:18 ` Robin Murphy
2016-10-04 17:37 ` Auger Eric
2016-10-03 9:38 ` Auger Eric
2016-09-27 20:48 ` [RFC 06/11] iommu/arm-smmu: Allow IOMMU_DOMAIN_MIXED domain allocation Eric Auger
2016-09-27 20:48 ` [RFC 07/11] iommu: Use IOMMU_DOMAIN_MIXED typed domain when IOMMU translates MSI Eric Auger
2016-09-27 20:48 ` [RFC 08/11] vfio/type1: Sets the IOVA window in case MSI IOVA need to be allocated Eric Auger
2016-09-27 20:48 ` [RFC 09/11] vfio/type1: Reserve IOVAs for IOMMU_DOMAIN_MIXED domains Eric Auger
2016-09-27 20:48 ` [RFC 10/11] iommu/arm-smmu: Do not advertise IOMMU_CAP_INTR_REMAP Eric Auger
2016-09-27 20:48 ` [RFC 11/11] iommu/arm-smmu: Advertise IOMMU_CAP_TRANSLATE_MSI Eric Auger
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