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zephyr/drivers/xen/Kconfig

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xenvm: drivers: xen: add Xen grant table driver This commit introduces driver for granting access for own grant table and for mapping/unmapping foreign gref. Grant tables are used for data exchange between Xen domains via shared memory page(s) (e.g. for sharing ring buffer with driver data) This functionality is widely used and needed for implementing PV backend/frontend drivers. Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
2021-12-07 18:52:45 +08:00
# SPDX-License-Identifier: Apache-2.0
xen: refactor Xen hypervisor Kconfig options Xen-related Kconfig options were highly dependand on BOARD/SOC xenvm. It is not correct because Xen support may be used on any board and SoC. So, Kconfig structure was refactored, now CONFIG_XEN is located in arch/ directory (same as in Linux kernel) and can be selected for any Cortex-A arm64 setup (no other platforms are currently supported). Also remove confusion in Domain 0 naming: Domain-0, initial domain, Dom0, privileged domain etc. Now all options related to Xen Domain 0 will be controlled by CONFIG_XEN_DOM0. Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
2023-06-13 18:19:18 +08:00
# Copyright (c) 2022-2023 EPAM Systems
xenvm: drivers: xen: add Xen grant table driver This commit introduces driver for granting access for own grant table and for mapping/unmapping foreign gref. Grant tables are used for data exchange between Xen domains via shared memory page(s) (e.g. for sharing ring buffer with driver data) This functionality is widely used and needed for implementing PV backend/frontend drivers. Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
2021-12-07 18:52:45 +08:00
xen: refactor Xen hypervisor Kconfig options Xen-related Kconfig options were highly dependand on BOARD/SOC xenvm. It is not correct because Xen support may be used on any board and SoC. So, Kconfig structure was refactored, now CONFIG_XEN is located in arch/ directory (same as in Linux kernel) and can be selected for any Cortex-A arm64 setup (no other platforms are currently supported). Also remove confusion in Domain 0 naming: Domain-0, initial domain, Dom0, privileged domain etc. Now all options related to Xen Domain 0 will be controlled by CONFIG_XEN_DOM0. Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
2023-06-13 18:19:18 +08:00
if XEN
xenvm: drivers: xen: add Xen grant table driver This commit introduces driver for granting access for own grant table and for mapping/unmapping foreign gref. Grant tables are used for data exchange between Xen domains via shared memory page(s) (e.g. for sharing ring buffer with driver data) This functionality is widely used and needed for implementing PV backend/frontend drivers. Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
2021-12-07 18:52:45 +08:00
menu "Xen drivers"
config XEN_GRANT_TABLE
bool "Xen grant table driver"
depends on HEAP_MEM_POOL_SIZE > 0
default y
help
Xen grant table driver. Please note that driver uses dynamic memory
allocation with k_malloc(), so CONFIG_HEAP_MEM_POOL_SIZE should be
>= number of pages, that you want to alloc and grant or foreign frames
that you want to map.
config XEN_GRANT_TABLE_INIT_PRIORITY
int "Grant table driver init priority"
depends on XEN_GRANT_TABLE
default 50
endmenu
xen: refactor Xen hypervisor Kconfig options Xen-related Kconfig options were highly dependand on BOARD/SOC xenvm. It is not correct because Xen support may be used on any board and SoC. So, Kconfig structure was refactored, now CONFIG_XEN is located in arch/ directory (same as in Linux kernel) and can be selected for any Cortex-A arm64 setup (no other platforms are currently supported). Also remove confusion in Domain 0 naming: Domain-0, initial domain, Dom0, privileged domain etc. Now all options related to Xen Domain 0 will be controlled by CONFIG_XEN_DOM0. Signed-off-by: Dmytro Firsov <dmytro_firsov@epam.com>
2023-06-13 18:19:18 +08:00
endif # XEN