Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump...

[mv-sheeva.git] / arch / x86 / kernel / setup.c

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index b520dae02bf4806c6a9f79fd82bf444f24daba0c..141efab52400fe7919d1ad573ba1b54e407c9ac6 100644 (file)
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -223,6 +223,9 @@ unsigned long saved_video_mode;
 #define RAMDISK_LOAD_FLAG              0x4000
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
+#ifdef CONFIG_CMDLINE_BOOL
+static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
+#endif
 
 #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
 struct edd edd;
@@ -445,7 +448,7 @@ static void __init reserve_early_setup_data(void)
  * @size: Size of the crashkernel memory to reserve.
  * Returns the base address on success, and -1ULL on failure.
  */
-unsigned long long find_and_reserve_crashkernel(unsigned long long size)
+unsigned long long __init find_and_reserve_crashkernel(unsigned long long size)
 {
        const unsigned long long alignment = 16<<20;    /* 16M */
        unsigned long long start = 0LL;
@@ -665,11 +668,36 @@ void __init setup_arch(char **cmdline_p)
        bss_resource.start = virt_to_phys(&__bss_start);
        bss_resource.end = virt_to_phys(&__bss_stop)-1;
 
+#ifdef CONFIG_CMDLINE_BOOL
+#ifdef CONFIG_CMDLINE_OVERRIDE
+       strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
+#else
+       if (builtin_cmdline[0]) {
+               /* append boot loader cmdline to builtin */
+               strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
+               strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+               strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
+       }
+#endif
+#endif
+
        strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
        *cmdline_p = command_line;
 
        parse_early_param();
 
+#ifdef CONFIG_X86_64
+       check_efer();
+#endif
+
+#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
+       /*
+        * Must be before kernel pagetables are setup
+        * or fixmap area is touched.
+        */
+       vmi_init();
+#endif
+
        /* after early param, so could get panic from serial */
        reserve_early_setup_data();
 
@@ -730,7 +758,6 @@ void __init setup_arch(char **cmdline_p)
 #else
        num_physpages = max_pfn;
 
-       check_efer();
 
        /* How many end-of-memory variables you have, grandma! */
        /* need this before calling reserve_initrd */
@@ -788,10 +815,6 @@ void __init setup_arch(char **cmdline_p)
 
        initmem_init(0, max_pfn);
 
-#ifdef CONFIG_X86_64
-       dma32_reserve_bootmem();
-#endif
-
 #ifdef CONFIG_ACPI_SLEEP
        /*
         * Reserve low memory region for sleep support.
@@ -806,20 +829,21 @@ void __init setup_arch(char **cmdline_p)
 #endif
        reserve_crashkernel();
 
+#ifdef CONFIG_X86_64
+       /*
+        * dma32_reserve_bootmem() allocates bootmem which may conflict
+        * with the crashkernel command line, so do that after
+        * reserve_crashkernel()
+        */
+       dma32_reserve_bootmem();
+#endif
+
        reserve_ibft_region();
 
 #ifdef CONFIG_KVM_CLOCK
        kvmclock_init();
 #endif
 
-#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
-       /*
-        * Must be after max_low_pfn is determined, and before kernel
-        * pagetables are setup.
-        */
-       vmi_init();
-#endif
-
        paravirt_pagetable_setup_start(swapper_pg_dir);
        paging_init();
        paravirt_pagetable_setup_done(swapper_pg_dir);
@@ -856,12 +880,6 @@ void __init setup_arch(char **cmdline_p)
        init_apic_mappings();
        ioapic_init_mappings();
 
-#if defined(CONFIG_SMP) && defined(CONFIG_X86_PC) && defined(CONFIG_X86_32)
-       if (def_to_bigsmp)
-               printk(KERN_WARNING "More than 8 CPUs detected and "
-                       "CONFIG_X86_PC cannot handle it.\nUse "
-                       "CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
-#endif
        kvm_guest_init();
 
        e820_reserve_resources();