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| author | Kamal Mostafa <kamal@canonical.com> | 2011-02-04 02:38:05 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-02-14 13:15:43 +0100 |
| commit | 9a6d44b9adb777ca9549e88cd55bd8f2673c52a2 (patch) | |
| tree | c399dfe451b324fc5164b76e3eb7faf446e2b811 /arch/x86/kernel/e820.c | |
| parent | x86: Fix panic when handling "mem={invalid}" param (diff) | |
| download | linux-9a6d44b9adb777ca9549e88cd55bd8f2673c52a2.tar.xz linux-9a6d44b9adb777ca9549e88cd55bd8f2673c52a2.zip | |
x86: Emit "mem=nopentium ignored" warning when not supported
Emit warning when "mem=nopentium" is specified on any arch other
than x86_32 (the only that arch supports it).
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
BugLink: http://bugs.launchpad.net/bugs/553464
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
LKML-Reference: <1296783486-23033-2-git-send-email-kamal@canonical.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Diffstat (limited to 'arch/x86/kernel/e820.c')
| -rw-r--r-- | arch/x86/kernel/e820.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 55a59d889dbd..0b5e2b546566 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -847,12 +847,15 @@ static int __init parse_memopt(char *p) if (!p) return -EINVAL; -#ifdef CONFIG_X86_32 if (!strcmp(p, "nopentium")) { +#ifdef CONFIG_X86_32 setup_clear_cpu_cap(X86_FEATURE_PSE); return 0; - } +#else + printk(KERN_WARNING "mem=nopentium ignored! (only supported on x86_32)\n"); + return -EINVAL; #endif + } userdef = 1; mem_size = memparse(p, &p); |