Lines Matching +full:pci +full:- +full:iommu
1 # SPDX-License-Identifier: GPL-2.0-only
42 resource, and set aside for direct-access (device-dax) by
45 device-dax kmem facility. Say N to have the kernel treat this
83 memory before executing it. For compatibility with non-EFI loaders,
129 bool "Add support for Quark capsules with non-standard headers"
198 bool "Clear Busmaster bit on PCI bridges during ExitBootServices()"
200 Disable the busmaster bit in the control register on all PCI bridges
202 kernel. System firmware may configure the IOMMU to prevent malicious
203 PCI devices from being able to attack the OS via DMA. However, since
204 firmware can't guarantee that the OS is IOMMU-aware, it will tear
205 down IOMMU configuration when ExitBootServices() is called. This
207 damage before Linux configures the IOMMU again.
210 PCI bridges before ExitBootServices() is called. This will prevent
211 any malicious PCI devices from being able to perform DMA until the
212 kernel reenables busmastering after configuring the IOMMU.
233 See Documentation/admin-guide/acpi/ssdt-overlays.rst for more
247 an issue for Real-Time kernels.
300 tristate "TEE-based EFI runtime variable service driver"
305 EFI variables on an RPMB or any other non-volatile medium used by