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| author | Mike Rapoport <rppt@linux.ibm.com> | 2021-06-01 10:53:53 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-06-07 11:12:25 +0200 |
| commit | 1a6a9044b96729abacede172d7591c714a5b81d1 (patch) | |
| tree | 5bd8634209bbf78d663c4b016174dfa03f329fd6 /arch/x86/kernel/setup.c | |
| parent | 0a5f38c81e500976781908e172b4e51ee427b4a9 (diff) | |
| download | linux-1a6a9044b96729abacede172d7591c714a5b81d1.tar.bz2 | |
x86/setup: Remove CONFIG_X86_RESERVE_LOW and reservelow= options
The CONFIG_X86_RESERVE_LOW build time and reservelow= command line option
allowed to control the amount of memory under 1M that would be reserved at
boot to avoid using memory that can be potentially clobbered by BIOS.
Since the entire range under 1M is always reserved there is no need for
these options anymore and they can be removed.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210601075354.5149-3-rppt@kernel.org
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 1e720626069a..7638ac6c3d80 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -695,30 +695,6 @@ static void __init e820_add_kernel_range(void) e820__range_add(start, size, E820_TYPE_RAM); } -static unsigned reserve_low = CONFIG_X86_RESERVE_LOW << 10; - -static int __init parse_reservelow(char *p) -{ - unsigned long long size; - - if (!p) - return -EINVAL; - - size = memparse(p, &p); - - if (size < 4096) - size = 4096; - - if (size > 640*1024) - size = 640*1024; - - reserve_low = size; - - return 0; -} - -early_param("reservelow", parse_reservelow); - static void __init early_reserve_memory(void) { /* |