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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-22 14:10:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-22 14:10:27 -0700 |
| commit | 070c95d457267eefecd70f5dd434740201d5083c (patch) | |
| tree | 3a423f9556d886ef2b305f97adb072a5601737ae /drivers/iommu/intel-iommu.c | |
| parent | dcacc4864f03e138a8b757ce75142b602d7f4389 (diff) | |
| parent | 84c11e4df5aa4955acaa441f0cf1cb2e50daf64b (diff) | |
| download | linux-070c95d457267eefecd70f5dd434740201d5083c.tar.bz2 | |
Merge tag 'iommu-fixes-v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- AMD IOMMU fix for sg-mapping with sg->offset > PAGE_SIZE
- Fix for IOVA code to trigger the slow-path less often
- Two fixes for Intel VT-d to avoid writing to read-only registers and
to flush the right domain id for the default domains in scalable mode
* tag 'iommu-fixes-v5.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Save the right domain ID used by hardware
iommu/vt-d: Check capability before disabling protected memory
iommu/iova: Fix tracking of recently failed iova address
iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 87274b54febd..28cb713d728c 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -1538,6 +1538,9 @@ static void iommu_disable_protect_mem_regions(struct intel_iommu *iommu) u32 pmen; unsigned long flags; + if (!cap_plmr(iommu->cap) && !cap_phmr(iommu->cap)) + return; + raw_spin_lock_irqsave(&iommu->register_lock, flags); pmen = readl(iommu->reg + DMAR_PMEN_REG); pmen &= ~DMA_PMEN_EPM; @@ -5332,7 +5335,7 @@ int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct intel_svm_dev *sd ctx_lo = context[0].lo; - sdev->did = domain->iommu_did[iommu->seq_id]; + sdev->did = FLPT_DEFAULT_DID; sdev->sid = PCI_DEVID(info->bus, info->devfn); if (!(ctx_lo & CONTEXT_PASIDE)) { |