---

yaml
---
r: 35851
b: refs/heads/master
c: 2c8c0e6
h: refs/heads/master
i:
  35849: a4c36ed
  35847: 31d7ca9
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1a3f239ddf9208f2e52d36fef1c1c4518cbbbabe
+refs/heads/master: 2c8c0e6b8d7700a990da8d24eff767f9ca223b96

trunk/arch/x86_64/kernel/apic.c

@@ -36,6 +36,7 @@
 #include <asm/idle.h>
 #include <asm/proto.h>
 #include <asm/timex.h>
+#include <asm/apic.h>
 
 int apic_verbosity;
 int apic_runs_main_timer;
@@ -546,18 +547,24 @@ static void apic_pm_activate(void) { }
 
 static int __init apic_set_verbosity(char *str)
 {
+	if (str == NULL)  {
+		skip_ioapic_setup = 0;
+		ioapic_force = 1;
+		return 0;
+	}
 	if (strcmp("debug", str) == 0)
 		apic_verbosity = APIC_DEBUG;
 	else if (strcmp("verbose", str) == 0)
 		apic_verbosity = APIC_VERBOSE;
-	else
+	else {
 		printk(KERN_WARNING "APIC Verbosity level %s not recognised"
-				" use apic=verbose or apic=debug", str);
+				" use apic=verbose or apic=debug\n", str);
+		return -EINVAL;
+	}
 
-	return 1;
+	return 0;
 }
-
-__setup("apic=", apic_set_verbosity);
+early_param("apic", apic_set_verbosity);
 
 /*
  * Detect and enable local APICs on non-SMP boards.
@@ -1078,14 +1085,17 @@ int __init APIC_init_uniprocessor (void)
 static __init int setup_disableapic(char *str) 
 { 
 	disable_apic = 1;
-	return 1;
-} 
+	clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+	return 0;
+}
+early_param("disableapic", setup_disableapic);
 
+/* same as disableapic, for compatibility */
 static __init int setup_nolapic(char *str) 
 { 
-	disable_apic = 1;
-	return 1;
+	return setup_disableapic(str);
 } 
+early_param("nolapic", setup_nolapic);
 
 static __init int setup_noapictimer(char *str) 
 { 
@@ -1118,11 +1128,5 @@ static __init int setup_apicpmtimer(char *s)
 }
 __setup("apicpmtimer", setup_apicpmtimer);
 
-/* dummy parsing: see setup.c */
-
-__setup("disableapic", setup_disableapic); 
-__setup("nolapic", setup_nolapic);  /* same as disableapic, for compatibility */
-
 __setup("noapictimer", setup_noapictimer); 
 
-/* no "lapic" flag - we only use the lapic when the BIOS tells us so. */

trunk/arch/x86_64/kernel/e820.c

@@ -596,31 +596,64 @@ void __init setup_memory_region(void)
 	e820_print_map(who);
 }
 
-void __init parse_memopt(char *p, char **from) 
-{ 
-	end_user_pfn = memparse(p, from);
+static int __init parse_memopt(char *p)
+{
+	if (!p)
+		return -EINVAL;
+	end_user_pfn = memparse(p, &p);
 	end_user_pfn >>= PAGE_SHIFT;	
+	return 0;
 } 
+early_param("mem", parse_memopt);
+
+static int userdef __initdata;
 
-void __init parse_memmapopt(char *p, char **from)
+static int __init parse_memmap_opt(char *p)
 {
+	char *oldp;
 	unsigned long long start_at, mem_size;
 
-	mem_size = memparse(p, from);
-	p = *from;
+	if (!strcmp(p, "exactmap")) {
+#ifdef CONFIG_CRASH_DUMP
+		/* If we are doing a crash dump, we
+		 * still need to know the real mem
+		 * size before original memory map is
+		 * reset.
+		 */
+		saved_max_pfn = e820_end_of_ram();
+#endif
+		end_pfn_map = 0;
+		e820.nr_map = 0;
+		userdef = 1;
+		return 0;
+	}
+
+	oldp = p;
+	mem_size = memparse(p, &p);
+	if (p == oldp)
+		return -EINVAL;
 	if (*p == '@') {
-		start_at = memparse(p+1, from);
+		start_at = memparse(p+1, &p);
 		add_memory_region(start_at, mem_size, E820_RAM);
 	} else if (*p == '#') {
-		start_at = memparse(p+1, from);
+		start_at = memparse(p+1, &p);
 		add_memory_region(start_at, mem_size, E820_ACPI);
 	} else if (*p == '$') {
-		start_at = memparse(p+1, from);
+		start_at = memparse(p+1, &p);
 		add_memory_region(start_at, mem_size, E820_RESERVED);
 	} else {
 		end_user_pfn = (mem_size >> PAGE_SHIFT);
 	}
-	p = *from;
+	return *p == '\0' ? 0 : -EINVAL;
+}
+early_param("memmap", parse_memmap_opt);
+
+void finish_e820_parsing(void)
+{
+	if (userdef) {
+		printk(KERN_INFO "user-defined physical RAM map:\n");
+		e820_print_map("user");
+	}
 }
 
 unsigned long pci_mem_start = 0xaeedbabe;

trunk/arch/x86_64/kernel/early_printk.c

@@ -215,20 +215,16 @@ void early_printk(const char *fmt, ...)
 
 static int __initdata keep_early;
 
-int __init setup_early_printk(char *opt)
+static int __init setup_early_printk(char *buf)
 {
-	char *space;
-	char buf[256];
+	if (!buf)
+		return 0;
 
 	if (early_console_initialized)
-		return 1;
-
-	strlcpy(buf,opt,sizeof(buf));
-	space = strchr(buf, ' ');
-	if (space)
-		*space = 0;
+		return 0;
+	early_console_initialized = 1;
 
-	if (strstr(buf,"keep"))
+	if (!strcmp(buf,"keep"))
 		keep_early = 1;
 
 	if (!strncmp(buf, "serial", 6)) {
@@ -248,11 +244,12 @@ int __init setup_early_printk(char *opt)
  		early_console = &simnow_console;
  		keep_early = 1;
 	}
-	early_console_initialized = 1;
 	register_console(early_console);
 	return 0;
 }
 
+early_param("earlyprintk", setup_early_printk);
+
 void __init disable_early_printk(void)
 {
 	if (!early_console_initialized || !early_console)
@@ -266,4 +263,3 @@ void __init disable_early_printk(void)
 	}
 }
 
-__setup("earlyprintk=", setup_early_printk);

trunk/arch/x86_64/kernel/head64.c

@@ -58,7 +58,6 @@ static void __init copy_bootdata(char *real_mode_data)
 
 void __init x86_64_start_kernel(char * real_mode_data)
 {
-	char *s;
 	int i;
 
 	for (i = 0; i < 256; i++)
@@ -85,19 +84,5 @@ void __init x86_64_start_kernel(char * real_mode_data)
 #ifdef CONFIG_SMP
 	cpu_set(0, cpu_online_map);
 #endif
-	s = strstr(saved_command_line, "earlyprintk=");
-	if (s != NULL)
-		setup_early_printk(strchr(s, '=') + 1);
-#ifdef CONFIG_NUMA
-	s = strstr(saved_command_line, "numa=");
-	if (s != NULL)
-		numa_setup(s+5);
-#endif
-	if (strstr(saved_command_line, "disableapic"))
-		disable_apic = 1;
-	/* You need early console to see that */
-	if (__pa_symbol(&_end) >= KERNEL_TEXT_SIZE)
-		panic("Kernel too big for kernel mapping\n");
-
 	start_kernel();
 }

trunk/arch/x86_64/kernel/io_apic.c

@@ -48,7 +48,7 @@ int sis_apic_bug; /* not actually supported, dummy for compile */
 
 static int no_timer_check;
 
-int disable_timer_pin_1 __initdata;
+static int disable_timer_pin_1 __initdata;
 
 int timer_over_8254 __initdata = 0;
 
@@ -253,18 +253,17 @@ int ioapic_force;
 static int __init disable_ioapic_setup(char *str)
 {
 	skip_ioapic_setup = 1;
-	return 1;
+	return 0;
 }
+early_param("noapic", disable_ioapic_setup);
 
-static int __init enable_ioapic_setup(char *str)
+/* Actually the next is obsolete, but keep it for paranoid reasons -AK */
+static int __init disable_timer_pin_setup(char *arg)
 {
-	ioapic_force = 1;
-	skip_ioapic_setup = 0;
+	disable_timer_pin_1 = 1;
 	return 1;
 }
-
-__setup("noapic", disable_ioapic_setup);
-__setup("apic", enable_ioapic_setup);
+__setup("disable_timer_pin_1", disable_timer_pin_setup);
 
 static int __init setup_disable_8254_timer(char *s)
 {

trunk/arch/x86_64/kernel/machine_kexec.c

@@ -226,3 +226,31 @@ NORET_TYPE void machine_kexec(struct kimage *image)
 	rnk = (relocate_new_kernel_t) control_code_buffer;
 	(*rnk)(page_list, control_code_buffer, image->start, start_pgtable);
 }
+
+/* crashkernel=size@addr specifies the location to reserve for
+ * a crash kernel.  By reserving this memory we guarantee
+ * that linux never set's it up as a DMA target.
+ * Useful for holding code to do something appropriate
+ * after a kernel panic.
+ */
+static int __init setup_crashkernel(char *arg)
+{
+	unsigned long size, base;
+	char *p;
+	if (!arg)
+		return -EINVAL;
+	size = memparse(arg, &p);
+	if (arg == p)
+		return -EINVAL;
+	if (*p == '@') {
+		base = memparse(p+1, &p);
+		/* FIXME: Do I want a sanity check to validate the
+		 * memory range?  Yes you do, but it's too early for
+		 * e820 -AK */
+		crashk_res.start = base;
+		crashk_res.end   = base + size - 1;
+	}
+	return 0;
+}
+early_param("crashkernel", setup_crashkernel);
+

trunk/arch/x86_64/kernel/pci-dma.c

@@ -236,6 +236,9 @@ __init int iommu_setup(char *p)
 {
     iommu_merge = 1;
 
+	if (!p)
+		return -EINVAL;
+
     while (*p) {
 	    if (!strncmp(p,"off",3))
 		    no_iommu = 1;
@@ -278,9 +281,9 @@ __init int iommu_setup(char *p)
 	    if (*p == ',')
 		    ++p;
     }
-    return 1;
+    return 0;
 }
-__setup("iommu=", iommu_setup);
+early_param("iommu", iommu_setup);
 
 void __init pci_iommu_alloc(void)
 {