On Thu, Oct 10, 2019 at 03:28:28PM -0700, Kees Cook wrote:
> As we've seen from USB and other areas[1], we need to always do runtime
> checks for DMA operating on memory regions that might be remapped. This
> adds vmap checks (similar to those already in USB but missing in other
> places) into dma_
Some SMMU instances may not connect all input address lines physically
but drive some upper address bits to logical zero, depending on their
SoC designs. Some of them even connect only 39 bits that is not in the
list of IAS/OAS from SMMU internal IDR registers.
After the "input-address-size" prope
This series of patches add an optional DT property to allow an SoC to
specify how many bits being physically connected to its SMMU instance,
depending on the SoC design.
Nicolin Chen (2):
dt-bindings: arm-smmu: Add an optional "input-address-size" property
iommu/arm-smmu: Read optional "input-
Some SMMU instances may not connect all input address lines physically
but drive some upper address bits to logical zero, depending on their
SoC designs. Some of them even connect only 39 bits that is not in the
list of IAS/OAS from SMMU internal IDR registers.
Since this can be an SoC design deci
On 10/9/19 3:53 PM, Bjorn Helgaas wrote:
From: Bjorn Helgaas
The following functions are only used by amd_iommu.c and intel-iommu.c
(when CONFIG_INTEL_IOMMU_SVM is enabled). CONFIG_PCI_PRI and
CONFIG_PCI_PASID are always defined in those cases, so there's no need for
the stubs.
pci_enabl
Now that the vmap area checks are being performed in the DMA
infrastructure directly, there is no need to repeat them in USB.
Signed-off-by: Kees Cook
---
drivers/usb/core/hcd.c | 8 +---
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/h
As we've seen from USB and other areas[1], we need to always do runtime
checks for DMA operating on memory regions that might be remapped. This
adds vmap checks (similar to those already in USB but missing in other
places) into dma_map_single() so all callers benefit from the checking.
[1] https:/
Duplicating patch 1 commit log:
As we've seen from USB and other areas[1], we need to always do runtime
checks for DMA operating on memory regions that might be remapped. This
adds vmap checks (similar to those already in USB but missing in other
places) into dma_map_single() so all callers benefi
