5 files changed, 33 insertions, 5 deletions

diff --git a/arch/x86/kernel/e820_32.c b/arch/x86/kernel/e820_32.c
index 58fd54eb5577..18f500d185a2 100644
--- a/arch/x86/kernel/e820_32.c
+++ b/arch/x86/kernel/e820_32.c
@@ -51,6 +51,13 @@ struct resource code_resource = {
         .flags  = IORESOURCE_BUSY | IORESOURCE_MEM
 };
 
+struct resource bss_resource = {
+        .name   = "Kernel bss",
+        .start  = 0,
+        .end    = 0,
+        .flags  = IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
 static struct resource system_rom_resource = {
         .name   = "System ROM",
         .start  = 0xf0000,
@@ -254,7 +261,9 @@ static void __init probe_roms(void)
  * and also for regions reported as reserved by the e820.
  */
 static void __init
-legacy_init_iomem_resources(struct resource *code_resource, struct resource *data_resource)
+legacy_init_iomem_resources(struct resource *code_resource,
+                            struct resource *data_resource,
+                            struct resource *bss_resource)
 {
         int i;
 
@@ -287,6 +296,7 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
                          */
                         request_resource(res, code_resource);
                         request_resource(res, data_resource);
+                        request_resource(res, bss_resource);
 #ifdef CONFIG_KEXEC
                         if (crashk_res.start != crashk_res.end)
                                 request_resource(res, &crashk_res);
@@ -307,9 +317,11 @@ static int __init request_standard_resources(void)
 
         printk("Setting up standard PCI resources\n");
         if (efi_enabled)
-                efi_initialize_iomem_resources(&code_resource, &data_resource);
+                efi_initialize_iomem_resources(&code_resource,
+                                &data_resource, &bss_resource);
         else
-                legacy_init_iomem_resources(&code_resource, &data_resource);
+                legacy_init_iomem_resources(&code_resource,
+                                &data_resource, &bss_resource);
 
         /* EFI systems may still have VGA */
         request_resource(&iomem_resource, &video_ram_resource);
diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 1ca228b06a20..04698e0b056c 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -47,7 +47,7 @@ unsigned long end_pfn_map;
  */
 static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT;
 
-extern struct resource code_resource, data_resource;
+extern struct resource code_resource, data_resource, bss_resource;
 
 /* Check for some hardcoded bad areas that early boot is not allowed to touch */ 
 static inline int bad_addr(unsigned long *addrp, unsigned long size)
@@ -225,6 +225,7 @@ void __init e820_reserve_resources(void)
                          */
                         request_resource(res, &code_resource);
                         request_resource(res, &data_resource);
+                        request_resource(res, &bss_resource);
 #ifdef CONFIG_KEXEC
                         if (crashk_res.start != crashk_res.end)
                                 request_resource(res, &crashk_res);
diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c
index b42558c48e9d..e2be78f49399 100644
--- a/arch/x86/kernel/efi_32.c
+++ b/arch/x86/kernel/efi_32.c
@@ -603,7 +603,8 @@ void __init efi_enter_virtual_mode(void)
 
 void __init
 efi_initialize_iomem_resources(struct resource *code_resource,
-                               struct resource *data_resource)
+                               struct resource *data_resource,
+                               struct resource *bss_resource)
 {
         struct resource *res;
         efi_memory_desc_t *md;
@@ -675,6 +676,7 @@ efi_initialize_iomem_resources(struct resource *code_resource,
                 if (md->type == EFI_CONVENTIONAL_MEMORY) {
                         request_resource(res, code_resource);
                         request_resource(res, data_resource);
+                        request_resource(res, bss_resource);
 #ifdef CONFIG_KEXEC
                         request_resource(res, &crashk_res);
 #endif
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index ba2e165a8a0f..cc0e91447b76 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -60,6 +60,7 @@
 #include <asm/vmi.h>
 #include <setup_arch.h>
 #include <bios_ebda.h>
+#include <asm/cacheflush.h>
 
 /* This value is set up by the early boot code to point to the value
    immediately after the boot time page tables.  It contains a *physical*
@@ -73,6 +74,7 @@ int disable_pse __devinitdata = 0;
  */
 extern struct resource code_resource;
 extern struct resource data_resource;
+extern struct resource bss_resource;
 
 /* cpu data as detected by the assembly code in head.S */
 struct cpuinfo_x86 new_cpu_data __cpuinitdata = { 0, 0, 0, 0, -1, 1, 0, 0, -1 };
@@ -600,6 +602,8 @@ void __init setup_arch(char **cmdline_p)
         code_resource.end = virt_to_phys(_etext)-1;
         data_resource.start = virt_to_phys(_etext);
         data_resource.end = virt_to_phys(_edata)-1;
+        bss_resource.start = virt_to_phys(&__bss_start);
+        bss_resource.end = virt_to_phys(&__bss_stop)-1;
 
         parse_early_param();
 
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 31322d42eaae..e7a9e36bd52d 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -58,6 +58,7 @@
 #include <asm/numa.h>
 #include <asm/sections.h>
 #include <asm/dmi.h>
+#include <asm/cacheflush.h>
 
 /*
  * Machine setup..
@@ -133,6 +134,12 @@ struct resource code_resource = {
         .end = 0,
         .flags = IORESOURCE_RAM,
 };
+struct resource bss_resource = {
+        .name = "Kernel bss",
+        .start = 0,
+        .end = 0,
+        .flags = IORESOURCE_RAM,
+};
 
 #ifdef CONFIG_PROC_VMCORE
 /* elfcorehdr= specifies the location of elf core header
@@ -276,6 +283,8 @@ void __init setup_arch(char **cmdline_p)
         code_resource.end = virt_to_phys(&_etext)-1;
         data_resource.start = virt_to_phys(&_etext);
         data_resource.end = virt_to_phys(&_edata)-1;
+        bss_resource.start = virt_to_phys(&__bss_start);
+        bss_resource.end = virt_to_phys(&__bss_stop)-1;
 
         early_identify_cpu(&boot_cpu_data);