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| author | Ingo Molnar <mingo@kernel.org> | 2017-01-28 22:27:28 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-01-28 22:55:25 +0100 |
| commit | 1a1270349a0710162a160eef4f2e360845e0f47d (patch) | |
| tree | 5c7cef4300145a06977b2a925c95d06bca8a8bcb /arch | |
| parent | 9a02fd0f1efbace5939bc34c4080a175e8112e8c (diff) | |
| download | blackbird-obmc-linux-1a1270349a0710162a160eef4f2e360845e0f47d.tar.gz blackbird-obmc-linux-1a1270349a0710162a160eef4f2e360845e0f47d.zip | |
x86/boot/e820: Document e820__reserve_setup_data()
Also clean it up a bit.
No change in functionality.
Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Jackson <pj@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/e820/api.h | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/e820.c | 11 | ||||
| -rw-r--r-- | arch/x86/kernel/setup.c | 3 |
3 files changed, 12 insertions, 6 deletions
diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h index 7d5dfc2f9e91..fae7f3e11d9a 100644 --- a/arch/x86/include/asm/e820/api.h +++ b/arch/x86/include/asm/e820/api.h @@ -22,10 +22,10 @@ extern void e820__update_table_print(void); extern unsigned long e820_end_of_ram_pfn(void); extern unsigned long e820_end_of_low_ram_pfn(void); -extern u64 e820__memblock_alloc_reserved(u64 sizet, u64 align); +extern u64 e820__memblock_alloc_reserved(u64 size, u64 align); extern void e820__memblock_setup(void); -extern void e820_reserve_setup_data(void); +extern void e820__reserve_setup_data(void); extern void e820__finish_early_params(void); extern void e820_reserve_resources(void); extern void e820_reserve_resources_late(void); diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 7dc430c03acb..114625890337 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -922,7 +922,12 @@ static int __init parse_memmap_opt(char *str) } early_param("memmap", parse_memmap_opt); -void __init e820_reserve_setup_data(void) +/* + * Reserve all entries from the bootloader's extensible data nodes list, + * because if present we are going to use it later on to fetch e820 + * entries from it: + */ +void __init e820__reserve_setup_data(void) { struct setup_data *data; u64 pa_data; @@ -939,8 +944,10 @@ void __init e820_reserve_setup_data(void) } e820__update_table(e820_table); + memcpy(e820_table_firmware, e820_table, sizeof(*e820_table_firmware)); - printk(KERN_INFO "extended physical RAM map:\n"); + + pr_info("extended physical RAM map:\n"); e820__print_table("reserve setup_data"); } diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index acb2db02ec81..4ac8ae8a7573 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1003,8 +1003,7 @@ void __init setup_arch(char **cmdline_p) early_dump_pci_devices(); #endif - /* update the e820_table_firmware too */ - e820_reserve_setup_data(); + e820__reserve_setup_data(); e820__finish_early_params(); if (efi_enabled(EFI_BOOT)) |
