cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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show_mem.c (1078B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Generic show_mem() implementation
      4 *
      5 * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
      6 */
      7
      8#include <linux/mm.h>
      9#include <linux/cma.h>
     10
     11void show_mem(unsigned int filter, nodemask_t *nodemask)
     12{
     13	pg_data_t *pgdat;
     14	unsigned long total = 0, reserved = 0, highmem = 0;
     15
     16	printk("Mem-Info:\n");
     17	show_free_areas(filter, nodemask);
     18
     19	for_each_online_pgdat(pgdat) {
     20		int zoneid;
     21
     22		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
     23			struct zone *zone = &pgdat->node_zones[zoneid];
     24			if (!populated_zone(zone))
     25				continue;
     26
     27			total += zone->present_pages;
     28			reserved += zone->present_pages - zone_managed_pages(zone);
     29
     30			if (is_highmem_idx(zoneid))
     31				highmem += zone->present_pages;
     32		}
     33	}
     34
     35	printk("%lu pages RAM\n", total);
     36	printk("%lu pages HighMem/MovableOnly\n", highmem);
     37	printk("%lu pages reserved\n", reserved);
     38#ifdef CONFIG_CMA
     39	printk("%lu pages cma reserved\n", totalcma_pages);
     40#endif
     41#ifdef CONFIG_MEMORY_FAILURE
     42	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
     43#endif
     44}