linux-kernel - [PATCH 2/2] KVM: IOMMU: Use iommu_commit() in device-passthrough code

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Message-ID: <1308843083-10442-3-git-send-email-joerg.roedel@amd.com>
Date:	Thu, 23 Jun 2011 17:31:23 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	<iommu@...ts.linux-foundation.org>
CC:	<linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Ohad Ben-Cohen <ohad@...ery.com>,
	David Brown <davidb@...eaurora.org>, <kvm@...r.kernel.org>,
	Avi Kivity <avi@...hat.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 2/2] KVM: IOMMU: Use iommu_commit() in device-passthrough code

Use the new iommu_commit() function in the KVM device
passthrough code.

Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 virt/kvm/iommu.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index 62a9caf..87ef85a 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -187,6 +187,8 @@ int kvm_assign_device(struct kvm *kvm,
 		PCI_SLOT(assigned_dev->host_devfn),
 		PCI_FUNC(assigned_dev->host_devfn));
 
+	iommu_commit(domain);
+
 	return 0;
 out_unmap:
 	kvm_iommu_unmap_memslots(kvm);
@@ -215,6 +217,8 @@ int kvm_deassign_device(struct kvm *kvm,
 		PCI_SLOT(assigned_dev->host_devfn),
 		PCI_FUNC(assigned_dev->host_devfn));
 
+	iommu_commit(domain);
+
 	return 0;
 }
 
@@ -235,6 +239,8 @@ int kvm_iommu_map_guest(struct kvm *kvm)
 	if (r)
 		goto out_unmap;
 
+	iommu_commit(kvm->arch.iommu_domain);
+
 	return 0;
 
 out_unmap:
@@ -283,6 +289,8 @@ static void kvm_iommu_put_pages(struct kvm *kvm,
 
 		gfn += unmap_pages;
 	}
+
+	iommu_commit(domain);
 }
 
 static int kvm_iommu_unmap_memslots(struct kvm *kvm)
-- 
1.7.4.1


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