From 3b33553badcde952adcf3b3ba5faae38d7d85071 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Thu, 10 Jul 2008 17:30:40 +0200 Subject: x86: add early quirk support Add early quirks support. In preparation of enabling the generic architecture to boot on a VISWS. This will allow us to remove the VISWS subarch and all its complications. Signed-off-by: Ingo Molnar --- arch/x86/kernel/e820.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/x86/kernel/e820.c') diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 9836a079cfd9..269d367d2ace 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1297,6 +1297,11 @@ void __init e820_reserve_resources(void) } } +/* + * Non-standard memory setup can be specified via this quirk: + */ +char * (*arch_memory_setup_quirk)(void); + char *__init default_machine_specific_memory_setup(void) { char *who = "BIOS-e820"; @@ -1337,6 +1342,12 @@ char *__init default_machine_specific_memory_setup(void) char *__init __attribute__((weak)) machine_specific_memory_setup(void) { + if (arch_memory_setup_quirk) { + char *who = arch_memory_setup_quirk(); + + if (who) + return who; + } return default_machine_specific_memory_setup(); } -- cgit v1.2.2