linux-kernel - [PATCH 3/4] KVM: use PCI VFs assignment helper functions

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Message-Id: <1405039642-23519-3-git-send-email-ethan.zhao@oracle.com>
Date:	Fri, 11 Jul 2014 08:47:21 +0800
From:	Ethan Zhao <ethan.zhao@...cle.com>
To:	bhelgaas@...gle.com, konrad.wilk@...cle.com,
	boris.ostrovsky@...cle.com, david.vrabel@...rix.com,
	gleb@...nel.org, pbonzini@...hat.com, jeffrey.t.kirsher@...el.com,
	jesse.brandeburg@...el.com, bruce.w.allan@...el.com,
	carolyn.wyborny@...el.com, donald.c.skidmore@...el.com,
	gregory.v.rose@...el.com, alexander.h.duyck@...el.com,
	john.ronciak@...el.com, mitch.a.williams@...el.com
Cc:	linux-pci@...r.kernel.org, kvm@...r.kernel.org,
	linux.nics@...el.com, e1000-devel@...ts.sourceforge.net,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	ethan.kernel@...il.com, vaughan.cao@...cle.com,
	Ethan Zhao <ethan.zhao@...cle.com>
Subject: [PATCH 3/4] KVM: use PCI VFs assignment helper functions

New VFs reference counter mechanism and VFs assignment helper functions are introduced to
PCI SRIOV, use them instead of manipulating device flag directly.

Signed-off-by: Ethan Zhao <ethan.zhao@...cle.com>
---
 virt/kvm/assigned-dev.c |    2 +-
 virt/kvm/iommu.c        |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index bf06577..80b477f 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -302,7 +302,7 @@ static void kvm_free_assigned_device(struct kvm *kvm,
 	else
 		pci_restore_state(assigned_dev->dev);
 
-	assigned_dev->dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
+	pci_sriov_deassign_device(assigned_dev->dev);
 
 	pci_release_regions(assigned_dev->dev);
 	pci_disable_device(assigned_dev->dev);
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index 0df7d4b..6d3f5ef 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -194,7 +194,7 @@ int kvm_assign_device(struct kvm *kvm,
 			goto out_unmap;
 	}
 
-	pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
+	pci_sriov_assign_device(pdev);
 
 	dev_info(&pdev->dev, "kvm assign device\n");
 
@@ -220,7 +220,7 @@ int kvm_deassign_device(struct kvm *kvm,
 
 	iommu_detach_device(domain, &pdev->dev);
 
-	pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
+	pci_sriov_deassign_device(pdev);
 
 	dev_info(&pdev->dev, "kvm deassign device\n");
 
-- 
1.7.1

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