46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#include <socks/status.h>
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#include <limits.h>
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#include <socks/vm.h>
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#include <socks/memblock.h>
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#include <stddef.h>
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#include <limits.h>
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#include <stdio.h>
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/* One vm_pg_data_t per NUMA node. */
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static vm_pg_data_t *node_data = NULL;
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/* array of pages, one for each physical page frame present in RAM */
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static vm_page_t *page_array = NULL;
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kern_status_t vm_bootstrap()
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{
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int numa_count = 1;
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/* we're only worrying about UMA systems for now */
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node_data = memblock_alloc(sizeof(vm_pg_data_t) * numa_count);
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size_t pmem_size = 0;
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memblock_iter_t it;
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for_each_mem_range (&it, 0x0, UINTPTR_MAX) {
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if (pmem_size < it.it_limit + 1) {
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pmem_size = it.it_limit + 1;
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}
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}
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size_t nr_pages = pmem_size / VM_PAGE_SIZE;
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if (pmem_size % VM_PAGE_SIZE) {
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nr_pages++;
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}
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page_array = memblock_alloc(sizeof(vm_page_t) * nr_pages);
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printf("page_array covers 0x%zx bytes, %zu page frames\n", pmem_size, pmem_size / 0x1000);
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printf("page_array is %zu bytes long\n", sizeof(vm_page_t) * nr_pages);
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for (size_t i = 0; i < nr_pages; i++) {
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vm_page_init(&page_array[i]);
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}
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return KERN_OK;
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}
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