| /* |
| * Copyright 2017, Data61 |
| * Commonwealth Scientific and Industrial Research Organisation (CSIRO) |
| * ABN 41 687 119 230. |
| * |
| * This software may be distributed and modified according to the terms of |
| * the BSD 2-Clause license. Note that NO WARRANTY is provided. |
| * See "LICENSE_BSD2.txt" for details. |
| * |
| * @TAG(DATA61_BSD) |
| */ |
| |
| #pragma once |
| |
| #include <sel4/types.h> |
| #include <assert.h> |
| #include <autoconf.h> |
| #include <sel4vka/gen_config.h> |
| #include <utils/util.h> |
| #include <vka/sel4_arch/kobject_t.h> |
| |
| enum _x86_kobject_type { |
| KOBJECT_IO_PAGETABLE = KOBJECT_MODE_NUM_TYPES, |
| KOBJECT_PAGE_DIRECTORY, |
| KOBJECT_PAGE_TABLE, |
| KOBJECT_ARCH_NUM_TYPES, |
| }; |
| |
| /* |
| * Get the size (in bits) of the untyped memory required to |
| * create an object of the given size. |
| */ |
| static inline seL4_Word arch_kobject_get_size(kobject_t type, seL4_Word objectSize) |
| { |
| switch (type) { |
| case KOBJECT_IO_PAGETABLE: |
| return seL4_IOPageTableBits; |
| case KOBJECT_FRAME: |
| switch (objectSize) { |
| case seL4_PageBits: |
| case seL4_LargePageBits: |
| return objectSize; |
| } |
| /* If frame size was unknown fall through to default case as it |
| * might be a mode specific frame size */ |
| default: |
| return x86_mode_kobject_get_size(type, objectSize); |
| } |
| } |
| |
| static inline seL4_Word arch_kobject_get_type(int type, seL4_Word objectSize) |
| { |
| switch (type) { |
| case KOBJECT_PAGE_DIRECTORY: |
| return seL4_X86_PageDirectoryObject; |
| case KOBJECT_PAGE_TABLE: |
| return seL4_X86_PageTableObject; |
| case KOBJECT_FRAME: |
| switch (objectSize) { |
| case seL4_PageBits: |
| return seL4_X86_4K; |
| case seL4_LargePageBits: |
| return seL4_X86_LargePageObject; |
| default: |
| return x86_mode_kobject_get_type(type, objectSize); |
| } |
| case KOBJECT_IO_PAGETABLE: |
| return seL4_X86_IOPageTableObject; |
| default: |
| return x86_mode_kobject_get_type(type, objectSize); |
| } |
| } |
| |