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| author |   Joerg Roedel <joerg.roedel@amd.com> | 2009-09-01 12:22:22 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-03 16:15:46 +0200 |
| commit | a1ca331c8aa75cd58fdf685e2e8745e1d3ec5c8f (patch) | |
| tree | a9945bafe6ea38a537e182670daaf6a44284448e /arch/x86/kernel | |
| parent | x86/amd-iommu: Make sure a device is assigned in passthrough mode (diff) | |
| download | linux-dev-a1ca331c8aa75cd58fdf685e2e8745e1d3ec5c8f.tar.xz linux-dev-a1ca331c8aa75cd58fdf685e2e8745e1d3ec5c8f.zip | |
x86/amd-iommu: Don't detach device from pt domain on driver unbind
This patch makes sure a device is not detached from the
passthrough domain when the device driver is unloaded or
does otherwise release the device.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index a8e74c34dd27..12a541deae5e 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -1195,6 +1195,8 @@ static int device_change_notifier(struct notifier_block *nb, case BUS_NOTIFY_UNBOUND_DRIVER: if (!domain) goto out; + if (iommu_pass_through) + break; detach_device(domain, devid); break; case BUS_NOTIFY_ADD_DEVICE: |