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| author |   Joerg Roedel <joerg.roedel@amd.com> | 2009-08-31 16:01:48 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-03 16:15:43 +0200 |
| commit | aa879fff5d12318259816aa35023e941a1e4d3d9 (patch) | |
| tree | 150412d34e3aca54d623a63cd0a390d5358f8712 /arch/x86/kernel/amd_iommu.c | |
| parent | x86/amd-iommu: Add passthrough mode initialization functions (diff) | |
| download | linux-dev-aa879fff5d12318259816aa35023e941a1e4d3d9.tar.xz linux-dev-aa879fff5d12318259816aa35023e941a1e4d3d9.zip | |
x86/amd-iommu: Fix device table write order
The V bit of the device table entry has to be set after the
rest of the entry is written to not confuse the hardware.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 7987f20499ad..2b1e77c714ff 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -1087,9 +1087,9 @@ static void __attach_device(struct amd_iommu *iommu, pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | IOMMU_PTE_TV; write_lock_irqsave(&amd_iommu_devtable_lock, flags); - amd_iommu_dev_table[devid].data[0] = lower_32_bits(pte_root); - amd_iommu_dev_table[devid].data[1] = upper_32_bits(pte_root); amd_iommu_dev_table[devid].data[2] = domain->id; + amd_iommu_dev_table[devid].data[1] = upper_32_bits(pte_root); + amd_iommu_dev_table[devid].data[0] = lower_32_bits(pte_root); amd_iommu_pd_table[devid] = domain; write_unlock_irqrestore(&amd_iommu_devtable_lock, flags); |