From: eric.auger@redhat.com (Eric Auger)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v14 01/16] iommu/iova: fix __alloc_and_insert_iova_range
Date: Wed, 12 Oct 2016 13:22:09 +0000 [thread overview]
Message-ID: <1476278544-3397-2-git-send-email-eric.auger@redhat.com> (raw)
In-Reply-To: <1476278544-3397-1-git-send-email-eric.auger@redhat.com>
Fix the size check within start_pfn and limit_pfn.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
the issue was observed when playing with 1 page iova domain with
higher iova reserved.
---
drivers/iommu/iova.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index e23001b..ee29dbf 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -147,7 +147,7 @@ move_left:
if (!curr) {
if (size_aligned)
pad_size = iova_get_pad_size(size, limit_pfn);
- if ((iovad->start_pfn + size + pad_size) > limit_pfn) {
+ if ((iovad->start_pfn + size + pad_size - 1) > limit_pfn) {
spin_unlock_irqrestore(&iovad->iova_rbtree_lock, flags);
return -ENOMEM;
}
--
1.9.1
next prev parent reply other threads:[~2016-10-12 13:22 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-12 13:22 [PATCH v14 00/16] KVM PCIe/MSI passthrough on ARM/ARM64 Eric Auger
2016-10-12 13:22 ` Eric Auger [this message]
2016-10-12 13:22 ` [PATCH v14 02/16] iommu: Introduce DOMAIN_ATTR_MSI_RESV Eric Auger
2016-10-12 13:22 ` [PATCH v14 03/16] iommu/dma: Allow MSI-only cookies Eric Auger
2016-10-12 13:22 ` [PATCH v14 04/16] iommu/dma: MSI doorbell alloc/free Eric Auger
2016-10-14 11:25 ` Punit Agrawal
2016-10-17 14:25 ` Auger Eric
2016-10-12 13:22 ` [PATCH v14 05/16] iommu/dma: Introduce iommu_calc_msi_resv Eric Auger
2016-10-12 13:22 ` [PATCH v14 06/16] iommu/arm-smmu: Implement domain_get_attr for DOMAIN_ATTR_MSI_RESV Eric Auger
2016-10-12 13:22 ` [PATCH v14 07/16] irqchip/gic-v2m: Register the MSI doorbell Eric Auger
2016-10-12 13:22 ` [PATCH v14 08/16] irqchip/gicv3-its: " Eric Auger
2016-10-12 13:22 ` [PATCH v14 09/16] vfio: Introduce a vfio_dma type field Eric Auger
2016-10-12 13:22 ` [PATCH v14 10/16] vfio/type1: vfio_find_dma accepting a type argument Eric Auger
2016-10-12 13:22 ` [PATCH v14 11/16] vfio/type1: Implement recursive vfio_find_dma_from_node Eric Auger
2016-10-12 13:22 ` [PATCH v14 12/16] vfio/type1: Handle unmap/unpin and replay for VFIO_IOVA_RESERVED slots Eric Auger
2016-10-12 13:22 ` [PATCH v14 13/16] vfio: Allow reserved msi iova registration Eric Auger
2016-10-12 13:22 ` [PATCH v14 14/16] vfio/type1: Check doorbell safety Eric Auger
2016-11-03 13:45 ` Diana Madalina Craciun
2016-11-03 14:14 ` Auger Eric
2016-10-12 13:22 ` [PATCH v14 15/16] iommu/arm-smmu: Do not advertise IOMMU_CAP_INTR_REMAP Eric Auger
2016-10-12 13:22 ` [PATCH v14 16/16] vfio/type1: Introduce MSI_RESV capability Eric Auger
2016-10-14 11:24 ` [PATCH v14 00/16] KVM PCIe/MSI passthrough on ARM/ARM64 Punit Agrawal
2016-10-17 14:19 ` Auger Eric
2016-10-17 15:08 ` Punit Agrawal
2016-10-20 17:32 ` Will Deacon
2016-10-21 9:26 ` Auger Eric
2016-10-24 19:39 ` Robin Murphy
2016-11-02 16:15 ` Auger Eric
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