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Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 boot updates from Ingo Molnar:
 "The changes in this cycle were:

   - Save e820 table RAM footprint on larger kernel configurations.
     (Denys Vlasenko)

   - pmem related fixes (Dan Williams)

   - theoretical e820 boundary condition fix (Wei Yang)"

* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Fix kdump, cleanup aborted E820_PRAM max_pfn manipulation
  x86/e820: Use much less memory for e820/e820_saved, save up to 120k
  x86/e820: Prepare e280 code for switch to dynamic storage
  x86/e820: Mark some static functions __init
  x86/e820: Fix very large 'size' handling boundary condition
This commit is contained in:
Linus Torvalds
2016-10-03 16:46:53 -07:00
parent 1a4a2bc460 917db484dc
commit 3ef0a61a46
10 changed files with 112 additions and 83 deletions
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8
arch/x86/kernel/setup.c
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@@ -458,8 +458,8 @@ static void __init e820_reserve_setup_data(void)
early_memunmap(data, sizeof(*data));
}
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
memcpy(&e820_saved, &e820, sizeof(struct e820map));
sanitize_e820_map(e820->map, ARRAY_SIZE(e820->map), &e820->nr_map);
memcpy(e820_saved, e820, sizeof(struct e820map));
printk(KERN_INFO "extended physical RAM map:\n");
e820_print_map("reserve setup_data");
}
@@ -763,7 +763,7 @@ static void __init trim_bios_range(void)
*/
e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
sanitize_e820_map(e820->map, ARRAY_SIZE(e820->map), &e820->nr_map);
}
/* called before trim_bios_range() to spare extra sanitize */
@@ -1032,7 +1032,7 @@ void __init setup_arch(char **cmdline_p)
if (ppro_with_ram_bug()) {
e820_update_range(0x70000000ULL, 0x40000ULL, E820_RAM,
E820_RESERVED);
sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
sanitize_e820_map(e820->map, ARRAY_SIZE(e820->map), &e820->nr_map);
printk(KERN_INFO "fixed physical RAM map:\n");
e820_print_map("bad_ppro");
}