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zephyr/drivers/interrupt_controller/Kconfig.intel_vtd

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drivers/interrupt_controller: Add Intel VT-D interrupt remapping driver Such interrupt remapping controller may be found along with Intel VT-D hardware. Its base-address is via ACPI, and it enables up to 64K interrupt indexes. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-10-13 21:22:27 +08:00
# Intel VT-D interrupt remapping controller configuration
# Copyright (c) 2020 Intel Corporation
# SPDX-License-Identifier: Apache-2.0
menuconfig INTEL_VTD_ICTL
bool "Intel VT-D interrupt remapping controller"
drivers/interrupt_controller: Enable VT-D by default under condition VT-D will only be enabled if MSI multi-vector will also be requested, on x86_64, for all boards BUT QEMU ones. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2021-03-05 17:05:21 +08:00
default y
depends on !BOARD_QEMU_X86_64 && ACPI && X86 && 64BIT && PCIE_MSI_MULTI_VECTOR
drivers/interrupt_controller: VT-D may manipulate the cache Depending on a VT-D capability, it might be necessary to flush objects from the cache. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2021-02-10 20:38:08 +08:00
select CACHE_MANAGEMENT
drivers/interrupt_controller: Add Intel VT-D interrupt remapping driver Such interrupt remapping controller may be found along with Intel VT-D hardware. Its base-address is via ACPI, and it enables up to 64K interrupt indexes. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-10-13 21:22:27 +08:00
help
Such interrupt remapping hardware is provided through Intel VT-D
technology. It's being used, currently, only for MSI/MSI-X
multi-vector support. If you have such PCIe device requiring
multi-vector support, you will need to enable this.
if INTEL_VTD_ICTL
drivers/interrupt_controller: Enable xapic pass-through in intel vt-d In XAPIC mode, it's possible to tell VT-D to let interrupt in compatible format passing through. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-15 18:23:42 +08:00
config INTEL_VTD_ICTL_XAPIC_PASSTHROUGH
bool "XAPIC mode pass-through"
depends on !X2APIC
help
If XAPIC mode is enabled, it will avoid remapping all interrupts.
drivers/interrupt_controller: Add a VT-D option to disable src id check Theoretically, source id check is not mandatory in the context we use VT-D here (i.e. non VM one, just multi-vector MSI support) Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2021-04-06 20:36:44 +08:00
config INTEL_VTD_ICTL_NO_SRC_ID_CHECK
bool "Never check the source id"
help
Disable the source id check in IRTE.
drivers/interrupt_controller: Add Intel VT-D interrupt remapping driver Such interrupt remapping controller may be found along with Intel VT-D hardware. Its base-address is via ACPI, and it enables up to 64K interrupt indexes. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-10-13 21:22:27 +08:00
config INTEL_VTD_ICTL_INIT_PRIORITY
int "Initialization priority"
drivers/interrupt_controller: Intel VT-D init should happen after ioapic Or then it will badly crash trying to set up the fault event isr handler. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2021-01-07 21:12:36 +08:00
default 40
drivers/interrupt_controller: Add Intel VT-D interrupt remapping driver Such interrupt remapping controller may be found along with Intel VT-D hardware. Its base-address is via ACPI, and it enables up to 64K interrupt indexes. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-10-13 21:22:27 +08:00
help
This device should be initialized as soon as possible, before any
other device that would require it for MSI/MSI-X multi-vector support.
endif # INTEL_VTD_ICTL