From 746f2eb790e75676ddc3b816ba18bac4179cc744 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Tue, 1 Jul 2008 21:43:52 +0400 Subject: [PATCH] x86: apic_32.c - add lapic resource Add lapic resource into kernel resource map and mark it as busy Signed-off-by: Cyrill Gorcunov Cc: "Maciej W. Rozycki" Signed-off-by: Ingo Molnar CC: Maciej W. Rozycki --- arch/x86/kernel/apic_32.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c index 6dea8306d8c..3e947208b9d 100644 --- a/arch/x86/kernel/apic_32.c +++ b/arch/x86/kernel/apic_32.c @@ -82,6 +82,11 @@ int pic_mode; /* Have we found an MP table */ int smp_found_config; +static struct resource lapic_resource = { + .name = "Local APIC", + .flags = IORESOURCE_MEM | IORESOURCE_BUSY, +}; + static unsigned int calibration_result; static int lapic_next_event(unsigned long delta, @@ -1720,3 +1725,21 @@ static int __init apic_set_verbosity(char *str) } __setup("apic=", apic_set_verbosity); +static int __init lapic_insert_resource(void) +{ + if (!apic_phys) + return -1; + + /* Put local APIC into the resource map. */ + lapic_resource.start = apic_phys; + lapic_resource.end = lapic_resource.start + PAGE_SIZE - 1; + insert_resource(&iomem_resource, &lapic_resource); + + return 0; +} + +/* + * need call insert after e820_reserve_resources() + * that is using request_resource + */ +late_initcall(lapic_insert_resource); -- 2.41.1