| /* SPDX-License-Identifier: Apache-2.0 */ |
| /* |
| * Copyright (c) 2023 EPAM Systems |
| */ |
| |
| #include <zephyr/kernel.h> |
| #include <zephyr/xen/public/memory.h> |
| #include <zephyr/xen/public/xen.h> |
| |
| /** |
| * Add mapping for specified page frame in Xen domain physmap. |
| * |
| * @param domid domain id, where mapping will be added. For unprivileged should |
| * be DOMID_SELF. |
| * @param idx index into space being mapped. |
| * @param space XENMAPSPACE_* mapping space identifier. |
| * @param gpfn page frame where the source mapping page should appear. |
| * @return zero on success, negative errno on error. |
| */ |
| int xendom_add_to_physmap(int domid, unsigned long idx, unsigned int space, |
| xen_pfn_t gpfn); |
| |
| /** |
| * Add mapping for specified set of page frames to Xen domain physmap. |
| * |
| * @param domid domain id, where mapping will be added. For unprivileged |
| * should be DOMID_SELF. |
| * @param foreign_domid for gmfn_foreign - domain id, whose pages being mapped, |
| * 0 for other. |
| * @param space XENMAPSPACE_* mapping space identifier. |
| * @param size number of page frames being mapped. |
| * @param idxs array of indexes into space being mapped. |
| * @param gpfns array of page frames where the mapping should appear. |
| * @param errs array of per-index error codes. |
| * @return zero on success, negative errno on error. |
| */ |
| int xendom_add_to_physmap_batch(int domid, int foreign_domid, |
| unsigned int space, unsigned int size, |
| xen_ulong_t *idxs, xen_pfn_t *gpfns, int *errs); |
| |
| /** |
| * Removes page frame from Xen domain physmap. |
| * |
| * @param domid domain id, whose page is going to be removed. For unprivileged |
| * should be DOMID_SELF. |
| * @param gpfn page frame number, that needs to be removed |
| * @return zero on success, negative errno on error. |
| */ |
| int xendom_remove_from_physmap(int domid, xen_pfn_t gpfn); |
| |
| /** |
| * Populate specified Xen domain page frames with memory. |
| * |
| * @param domid domain id, where mapping will be added. For unprivileged |
| * should be DOMID_SELF. |
| * @param extent_order size/alignment of each extent (size is 2^extent_order), |
| * e.g. 0 for 4K extents, 9 for 2M etc. |
| * @param nr_extents number of page frames being populated. |
| * @param mem_flags N/A, should be 0 for Arm. |
| * @param extent_start page frame bases of extents to populate with memory. |
| * @return number of populated frames success, negative errno on |
| * error. |
| */ |
| int xendom_populate_physmap(int domid, unsigned int extent_order, |
| unsigned int nr_extents, unsigned int mem_flags, |
| xen_pfn_t *extent_start); |