[PATCH] x86_64: Disallow kprobes on NMI handlers

[linux-2.6-omap-h63xx.git] / arch / x86_64 / kernel / e820.c

diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index 17579a1a174bda40da7f3291793ac746b9515cb0..293cd71a266aa221800c6e3246ee768cce5a71cd 100644 (file)
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -559,6 +559,27 @@ void __init parse_memopt(char *p, char **from)
        end_user_pfn >>= PAGE_SHIFT;    
 } 
 
+void __init parse_memmapopt(char *p, char **from)
+{
+       unsigned long long start_at, mem_size;
+
+       mem_size = memparse(p, from);
+       p = *from;
+       if (*p == '@') {
+               start_at = memparse(p+1, from);
+               add_memory_region(start_at, mem_size, E820_RAM);
+       } else if (*p == '#') {
+               start_at = memparse(p+1, from);
+               add_memory_region(start_at, mem_size, E820_ACPI);
+       } else if (*p == '$') {
+               start_at = memparse(p+1, from);
+               add_memory_region(start_at, mem_size, E820_RESERVED);
+       } else {
+               end_user_pfn = (mem_size >> PAGE_SHIFT);
+       }
+       p = *from;
+}
+
 unsigned long pci_mem_start = 0xaeedbabe;
 
 /*