diff options
Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 45 |
1 files changed, 42 insertions, 3 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 0d94e4a967d8..00b0210e1f1d 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -21,6 +21,7 @@ config GENERIC_PCI_IOMAP menuconfig PCI bool "PCI support" depends on HAVE_PCI + depends on MMU help This option enables support for the PCI local bus, including support for PCI-X and the foundations for PCI Express support. @@ -121,9 +122,30 @@ config XEN_PCIDEV_FRONTEND config PCI_ATS bool -config PCI_DOE +config PCI_IDE bool +config PCI_TSM + bool "PCI TSM: Device security protocol support" + select PCI_IDE + select PCI_DOE + select TSM + help + The TEE (Trusted Execution Environment) Device Interface + Security Protocol (TDISP) defines a "TSM" as a platform agent + that manages device authentication, link encryption, link + integrity protection, and assignment of PCI device functions + (virtual or physical) to confidential computing VMs that can + access (DMA) guest private memory. + + Enable a platform TSM driver to use this capability. + +config PCI_DOE + bool "Enable PCI Data Object Exchange (DOE) support" + help + Say Y here if you want be able to communicate with PCIe DOE + mailboxes. + config PCI_ECAM bool @@ -173,6 +195,15 @@ config PCI_PASID If unsure, say N. +config PCIE_TPH + bool "TLP Processing Hints" + help + This option adds support for PCIe TLP Processing Hints (TPH). + TPH allows endpoint devices to provide optimization hints, such as + desired caching behavior, for requests that target memory space. + These hints, called Steering Tags, can empower the system hardware + to optimize the utilization of platform resources. + config PCI_P2PDMA bool "PCI peer-to-peer transfer support" depends on ZONE_DEVICE @@ -194,6 +225,12 @@ config PCI_P2PDMA P2P DMA transactions must be between devices behind the same root port. + Enabling this option will reduce the entropy of x86 KASLR memory + regions. For example - on a 46 bit system, the entropy goes down + from 16 bits to 15 bits. The actual reduction in entropy depends + on the physical address bits, on processor features, kernel config + (5 level page table) and physical memory present on the system. + If unsure, say N. config PCI_LABEL @@ -202,8 +239,9 @@ config PCI_LABEL config PCI_HYPERV tristate "Hyper-V PCI Frontend" - depends on ((X86 && X86_64) || ARM64) && HYPERV && PCI_MSI && SYSFS + depends on ((X86 && X86_64) || ARM64) && HYPERV_VMBUS && PCI_MSI && SYSFS select PCI_HYPERV_INTERFACE + select IRQ_MSI_LIB help The PCI device frontend driver allows the kernel to import arbitrary PCI devices from a PCI backend to support PCI driver domains. @@ -286,6 +324,7 @@ config VGA_ARB bool "VGA Arbitration" if EXPERT default y depends on (PCI && !S390) + select SCREEN_INFO if X86 help Some "legacy" VGA devices implemented on PCI typically have the same hard-decoded addresses as they did on ISA. When multiple PCI devices @@ -305,6 +344,6 @@ source "drivers/pci/hotplug/Kconfig" source "drivers/pci/controller/Kconfig" source "drivers/pci/endpoint/Kconfig" source "drivers/pci/switch/Kconfig" -source "drivers/pci/pwrctl/Kconfig" +source "drivers/pci/pwrctrl/Kconfig" endif |