Merge branch 'linus' into x86/core

Conflicts:
	arch/x86/kernel/genapic_64.c
	include/asm-x86/kvm_host.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>

14 files changed, 161 insertions, 92 deletions

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 9e341c9d9414..84318edad8fb 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -1705,15 +1705,19 @@ static int __init parse_lapic_timer_c2_ok(char *arg)
 }
 early_param("lapic_timer_c2_ok", parse_lapic_timer_c2_ok);
 
-static int __init apic_set_verbosity(char *str)
+static int __init apic_set_verbosity(char *arg)
 {
-	if (strcmp("debug", str) == 0)
+	if (!arg)
+		return -EINVAL;
+
+	if (strcmp(arg, "debug") == 0)
 		apic_verbosity = APIC_DEBUG;
-	else if (strcmp("verbose", str) == 0)
+	else if (strcmp(arg, "verbose") == 0)
 		apic_verbosity = APIC_VERBOSE;
-	return 1;
+
+	return 0;
 }
-__setup("apic=", apic_set_verbosity);
+early_param("apic", apic_set_verbosity);
 
 static int __init lapic_insert_resource(void)
 {
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index c9b58a806e85..c8e315f1aa83 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -50,6 +50,8 @@ static double __initdata y = 3145727.0;
  */
 static void __init check_fpu(void)
 {
+	s32 fdiv_bug;
+
 	if (!boot_cpu_data.hard_math) {
 #ifndef CONFIG_MATH_EMULATION
 		printk(KERN_EMERG "No coprocessor found and no math emulation present.\n");
@@ -74,8 +76,10 @@ static void __init check_fpu(void)
 		"fistpl %0\n\t"
 		"fwait\n\t"
 		"fninit"
-		: "=m" (*&boot_cpu_data.fdiv_bug)
+		: "=m" (*&fdiv_bug)
 		: "m" (*&x), "m" (*&y));
+
+	boot_cpu_data.fdiv_bug = fdiv_bug;
 	if (boot_cpu_data.fdiv_bug)
 		printk("Hmm, FPU with FDIV bug.\n");
 }
diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig
index cb7a5715596d..efae3b22a0ff 100644
--- a/arch/x86/kernel/cpu/cpufreq/Kconfig
+++ b/arch/x86/kernel/cpu/cpufreq/Kconfig
@@ -235,9 +235,9 @@ config X86_LONGHAUL
 	  If in doubt, say N.
 
 config X86_E_POWERSAVER
-	tristate "VIA C7 Enhanced PowerSaver (EXPERIMENTAL)"
+	tristate "VIA C7 Enhanced PowerSaver"
 	select CPU_FREQ_TABLE
-	depends on X86_32 && EXPERIMENTAL
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for VIA C7 processors.
 
diff --git a/arch/x86/kernel/cpu/cpufreq/elanfreq.c b/arch/x86/kernel/cpu/cpufreq/elanfreq.c
index 94619c22f563..e4a4bf870e94 100644
--- a/arch/x86/kernel/cpu/cpufreq/elanfreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/elanfreq.c
@@ -44,7 +44,7 @@ struct s_elan_multiplier {
  * It is important that the frequencies
  * are listed in ascending order here!
  */
-struct s_elan_multiplier elan_multiplier[] = {
+static struct s_elan_multiplier elan_multiplier[] = {
 	{1000,	0x02,	0x18},
 	{2000,	0x02,	0x10},
 	{4000,	0x02,	0x08},
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index c45ca6d4dce1..4e7271999a74 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -66,7 +66,6 @@ static u32 find_freq_from_fid(u32 fid)
 	return 800 + (fid * 100);
 }
 
-
 /* Return a frequency in KHz, given an input fid */
 static u32 find_khz_freq_from_fid(u32 fid)
 {
@@ -78,7 +77,6 @@ static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data, u32 p
 	return data[pstate].frequency;
 }
 
-
 /* Return the vco fid for an input fid
  *
  * Each "low" fid has corresponding "high" fid, and you can get to "low" fids
@@ -166,7 +164,6 @@ static void fidvid_msr_init(void)
 	wrmsr(MSR_FIDVID_CTL, lo, hi);
 }
 
-
 /* write the new fid value along with the other control fields to the msr */
 static int write_new_fid(struct powernow_k8_data *data, u32 fid)
 {
@@ -740,44 +737,63 @@ static int find_psb_table(struct powernow_k8_data *data)
 #ifdef CONFIG_X86_POWERNOW_K8_ACPI
 static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index)
 {
-	if (!data->acpi_data.state_count || (cpu_family == CPU_HW_PSTATE))
+	if (!data->acpi_data->state_count || (cpu_family == CPU_HW_PSTATE))
 		return;
 
-	data->irt = (data->acpi_data.states[index].control >> IRT_SHIFT) & IRT_MASK;
-	data->rvo = (data->acpi_data.states[index].control >> RVO_SHIFT) & RVO_MASK;
-	data->exttype = (data->acpi_data.states[index].control >> EXT_TYPE_SHIFT) & EXT_TYPE_MASK;
-	data->plllock = (data->acpi_data.states[index].control >> PLL_L_SHIFT) & PLL_L_MASK;
-	data->vidmvs = 1 << ((data->acpi_data.states[index].control >> MVS_SHIFT) & MVS_MASK);
-	data->vstable = (data->acpi_data.states[index].control >> VST_SHIFT) & VST_MASK;
+	data->irt = (data->acpi_data->states[index].control >> IRT_SHIFT) & IRT_MASK;
+	data->rvo = (data->acpi_data->states[index].control >> RVO_SHIFT) & RVO_MASK;
+	data->exttype = (data->acpi_data->states[index].control >> EXT_TYPE_SHIFT) & EXT_TYPE_MASK;
+	data->plllock = (data->acpi_data->states[index].control >> PLL_L_SHIFT) & PLL_L_MASK;
+	data->vidmvs = 1 << ((data->acpi_data->states[index].control >> MVS_SHIFT) & MVS_MASK);
+	data->vstable = (data->acpi_data->states[index].control >> VST_SHIFT) & VST_MASK;
+}
+
+
+static struct acpi_processor_performance *acpi_perf_data;
+static int preregister_valid;
+
+static int powernow_k8_cpu_preinit_acpi(void)
+{
+	acpi_perf_data = alloc_percpu(struct acpi_processor_performance);
+	if (!acpi_perf_data)
+		return -ENODEV;
+
+	if (acpi_processor_preregister_performance(acpi_perf_data))
+		return -ENODEV;
+	else
+		preregister_valid = 1;
+	return 0;
 }
 
 static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 {
 	struct cpufreq_frequency_table *powernow_table;
 	int ret_val;
+	int cpu = 0;
 
-	if (acpi_processor_register_performance(&data->acpi_data, data->cpu)) {
+	data->acpi_data = percpu_ptr(acpi_perf_data, cpu);
+	if (acpi_processor_register_performance(data->acpi_data, data->cpu)) {
 		dprintk("register performance failed: bad ACPI data\n");
 		return -EIO;
 	}
 
 	/* verify the data contained in the ACPI structures */
-	if (data->acpi_data.state_count <= 1) {
+	if (data->acpi_data->state_count <= 1) {
 		dprintk("No ACPI P-States\n");
 		goto err_out;
 	}
 
-	if ((data->acpi_data.control_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE) ||
-		(data->acpi_data.status_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE)) {
+	if ((data->acpi_data->control_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE) ||
+		(data->acpi_data->status_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE)) {
 		dprintk("Invalid control/status registers (%x - %x)\n",
-			data->acpi_data.control_register.space_id,
-			data->acpi_data.status_register.space_id);
+			data->acpi_data->control_register.space_id,
+			data->acpi_data->status_register.space_id);
 		goto err_out;
 	}
 
 	/* fill in data->powernow_table */
 	powernow_table = kmalloc((sizeof(struct cpufreq_frequency_table)
-		* (data->acpi_data.state_count + 1)), GFP_KERNEL);
+		* (data->acpi_data->state_count + 1)), GFP_KERNEL);
 	if (!powernow_table) {
 		dprintk("powernow_table memory alloc failure\n");
 		goto err_out;
@@ -790,12 +806,12 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 	if (ret_val)
 		goto err_out_mem;
 
-	powernow_table[data->acpi_data.state_count].frequency = CPUFREQ_TABLE_END;
-	powernow_table[data->acpi_data.state_count].index = 0;
+	powernow_table[data->acpi_data->state_count].frequency = CPUFREQ_TABLE_END;
+	powernow_table[data->acpi_data->state_count].index = 0;
 	data->powernow_table = powernow_table;
 
 	/* fill in data */
-	data->numps = data->acpi_data.state_count;
+	data->numps = data->acpi_data->state_count;
 	if (first_cpu(per_cpu(cpu_core_map, data->cpu)) == data->cpu)
 		print_basics(data);
 	powernow_k8_acpi_pst_values(data, 0);
@@ -803,16 +819,31 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 	/* notify BIOS that we exist */
 	acpi_processor_notify_smm(THIS_MODULE);
 
+	/* determine affinity, from ACPI if available */
+	if (preregister_valid) {
+		if ((data->acpi_data->shared_type == CPUFREQ_SHARED_TYPE_ALL) ||
+			(data->acpi_data->shared_type == CPUFREQ_SHARED_TYPE_ANY))
+			data->starting_core_affinity = data->acpi_data->shared_cpu_map;
+		else
+			data->starting_core_affinity = cpumask_of_cpu(data->cpu);
+	} else {
+	/* best guess from family if not */
+		if (cpu_family == CPU_HW_PSTATE)
+			data->starting_core_affinity = cpumask_of_cpu(data->cpu);
+		else
+			data->starting_core_affinity = per_cpu(cpu_core_map, data->cpu);
+	}
+
 	return 0;
 
 err_out_mem:
 	kfree(powernow_table);
 
 err_out:
-	acpi_processor_unregister_performance(&data->acpi_data, data->cpu);
+	acpi_processor_unregister_performance(data->acpi_data, data->cpu);
 
 	/* data->acpi_data.state_count informs us at ->exit() whether ACPI was used */
-	data->acpi_data.state_count = 0;
+	data->acpi_data->state_count = 0;
 
 	return -ENODEV;
 }
@@ -824,10 +855,10 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpuf
 	rdmsr(MSR_PSTATE_CUR_LIMIT, hi, lo);
 	data->max_hw_pstate = (hi & HW_PSTATE_MAX_MASK) >> HW_PSTATE_MAX_SHIFT;
 
-	for (i = 0; i < data->acpi_data.state_count; i++) {
+	for (i = 0; i < data->acpi_data->state_count; i++) {
 		u32 index;
 
-		index = data->acpi_data.states[i].control & HW_PSTATE_MASK;
+		index = data->acpi_data->states[i].control & HW_PSTATE_MASK;
 		if (index > data->max_hw_pstate) {
 			printk(KERN_ERR PFX "invalid pstate %d - bad value %d.\n", i, index);
 			printk(KERN_ERR PFX "Please report to BIOS manufacturer\n");
@@ -843,7 +874,7 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpuf
 
 		powernow_table[i].index = index;
 
-		powernow_table[i].frequency = data->acpi_data.states[i].core_frequency * 1000;
+		powernow_table[i].frequency = data->acpi_data->states[i].core_frequency * 1000;
 	}
 	return 0;
 }
@@ -852,16 +883,16 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf
 {
 	int i;
 	int cntlofreq = 0;
-	for (i = 0; i < data->acpi_data.state_count; i++) {
+	for (i = 0; i < data->acpi_data->state_count; i++) {
 		u32 fid;
 		u32 vid;
 
 		if (data->exttype) {
-			fid = data->acpi_data.states[i].status & EXT_FID_MASK;
-			vid = (data->acpi_data.states[i].status >> VID_SHIFT) & EXT_VID_MASK;
+			fid = data->acpi_data->states[i].status & EXT_FID_MASK;
+			vid = (data->acpi_data->states[i].status >> VID_SHIFT) & EXT_VID_MASK;
 		} else {
-			fid = data->acpi_data.states[i].control & FID_MASK;
-			vid = (data->acpi_data.states[i].control >> VID_SHIFT) & VID_MASK;
+			fid = data->acpi_data->states[i].control & FID_MASK;
+			vid = (data->acpi_data->states[i].control >> VID_SHIFT) & VID_MASK;
 		}
 
 		dprintk("   %d : fid 0x%x, vid 0x%x\n", i, fid, vid);
@@ -902,10 +933,10 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf
 				cntlofreq = i;
 		}
 
-		if (powernow_table[i].frequency != (data->acpi_data.states[i].core_frequency * 1000)) {
+		if (powernow_table[i].frequency != (data->acpi_data->states[i].core_frequency * 1000)) {
 			printk(KERN_INFO PFX "invalid freq entries %u kHz vs. %u kHz\n",
 				powernow_table[i].frequency,
-				(unsigned int) (data->acpi_data.states[i].core_frequency * 1000));
+				(unsigned int) (data->acpi_data->states[i].core_frequency * 1000));
 			powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
 			continue;
 		}
@@ -915,11 +946,12 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf
 
 static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data)
 {
-	if (data->acpi_data.state_count)
-		acpi_processor_unregister_performance(&data->acpi_data, data->cpu);
+	if (data->acpi_data->state_count)
+		acpi_processor_unregister_performance(data->acpi_data, data->cpu);
 }
 
 #else
+static int powernow_k8_cpu_preinit_acpi(void) { return -ENODEV; }
 static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) { return -ENODEV; }
 static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data) { return; }
 static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index) { return; }
@@ -1104,7 +1136,7 @@ static int powernowk8_verify(struct cpufreq_policy *pol)
 static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 {
 	struct powernow_k8_data *data;
-	cpumask_t oldmask;
+	cpumask_t oldmask = CPU_MASK_ALL;
 	int rc;
 
 	if (!cpu_online(pol->cpu))
@@ -1177,10 +1209,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
 	/* run on any CPU again */
 	set_cpus_allowed_ptr(current, &oldmask);
 
-	if (cpu_family == CPU_HW_PSTATE)
-		pol->cpus = cpumask_of_cpu(pol->cpu);
-	else
-		pol->cpus = per_cpu(cpu_core_map, pol->cpu);
+	pol->cpus = data->starting_core_affinity;
 	data->available_cores = &(pol->cpus);
 
 	/* Take a crude guess here.
@@ -1303,6 +1332,7 @@ static int __cpuinit powernowk8_init(void)
 	}
 
 	if (supported_cpus == num_online_cpus()) {
+		powernow_k8_cpu_preinit_acpi();
 		printk(KERN_INFO PFX "Found %d %s "
 			"processors (%d cpu cores) (" VERSION ")\n",
 			num_online_nodes(),
@@ -1319,6 +1349,10 @@ static void __exit powernowk8_exit(void)
 	dprintk("exit\n");
 
 	cpufreq_unregister_driver(&cpufreq_amd64_driver);
+
+#ifdef CONFIG_X86_POWERNOW_K8_ACPI
+	free_percpu(acpi_perf_data);
+#endif
 }
 
 MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com> and Mark Langsdorf <mark.langsdorf@amd.com>");
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
index ab48cfed4d96..a62612cd4be8 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
@@ -33,12 +33,13 @@ struct powernow_k8_data {
 #ifdef CONFIG_X86_POWERNOW_K8_ACPI
 	/* the acpi table needs to be kept. it's only available if ACPI was
 	 * used to determine valid frequency/vid/fid states */
-	struct acpi_processor_performance acpi_data;
+	struct acpi_processor_performance *acpi_data;
 #endif
 	/* we need to keep track of associated cores, but let cpufreq
 	 * handle hotplug events - so just point at cpufreq pol->cpus
 	 * structure */
 	cpumask_t *available_cores;
+	cpumask_t starting_core_affinity;
 };
 
 
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 72ba06314c7b..26ea3ea3fb30 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -58,7 +58,7 @@ atomic_t irq_mis_count;
 static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
 
 static DEFINE_SPINLOCK(ioapic_lock);
-static DEFINE_SPINLOCK(vector_lock);
+DEFINE_SPINLOCK(vector_lock);
 
 int timer_through_8259 __initdata;
 
@@ -1210,10 +1210,6 @@ static int assign_irq_vector(int irq)
 	return vector;
 }
 
-void setup_vector_irq(int cpu)
-{
-}
-
 static struct irq_chip ioapic_chip;
 
 #define IOAPIC_AUTO	-1
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index b9950dae59b7..e63282e78864 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -103,7 +103,7 @@ int timer_through_8259 __initdata;
 static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
 
 static DEFINE_SPINLOCK(ioapic_lock);
-DEFINE_SPINLOCK(vector_lock);
+static DEFINE_SPINLOCK(vector_lock);
 
 /*
  * # of IRQ routing registers
@@ -770,6 +770,19 @@ static int pin_2_irq(int idx, int apic, int pin)
 	return irq;
 }
 
+void lock_vector_lock(void)
+{
+	/* Used to the online set of cpus does not change
+	 * during assign_irq_vector.
+	 */
+	spin_lock(&vector_lock);
+}
+
+void unlock_vector_lock(void)
+{
+	spin_unlock(&vector_lock);
+}
+
 static int __assign_irq_vector(int irq, cpumask_t mask)
 {
 	/*
@@ -875,7 +888,7 @@ static void __clear_irq_vector(int irq)
 	cpus_clear(cfg->domain);
 }
 
-static void __setup_vector_irq(int cpu)
+void __setup_vector_irq(int cpu)
 {
 	/* Initialize vector_irq on a new cpu */
 	/* This function must be called with vector_lock held */
@@ -898,14 +911,6 @@ static void __setup_vector_irq(int cpu)
 	}
 }
 
-void setup_vector_irq(int cpu)
-{
-	spin_lock(&vector_lock);
-	__setup_vector_irq(smp_processor_id());
-	spin_unlock(&vector_lock);
-}
-
-
 static struct irq_chip ioapic_chip;
 #ifdef CONFIG_INTR_REMAP
 static struct irq_chip ir_ioapic_chip;
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index e362c6ab4d35..e5d23675bb7c 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -83,7 +83,7 @@ static void __init MP_bus_info(struct mpc_config_bus *m)
 	if (x86_quirks->mpc_oem_bus_info)
 		x86_quirks->mpc_oem_bus_info(m, str);
 	else
-		printk(KERN_INFO "Bus #%d is %s\n", m->mpc_busid, str);
+		apic_printk(APIC_VERBOSE, "Bus #%d is %s\n", m->mpc_busid, str);
 
 #if MAX_MP_BUSSES < 256
 	if (m->mpc_busid >= MAX_MP_BUSSES) {
@@ -154,7 +154,7 @@ static void __init MP_ioapic_info(struct mpc_config_ioapic *m)
 
 static void print_MP_intsrc_info(struct mpc_config_intsrc *m)
 {
-	printk(KERN_CONT "Int: type %d, pol %d, trig %d, bus %02x,"
+	apic_printk(APIC_VERBOSE, "Int: type %d, pol %d, trig %d, bus %02x,"
 		" IRQ %02x, APIC ID %x, APIC INT %02x\n",
 		m->mpc_irqtype, m->mpc_irqflag & 3,
 		(m->mpc_irqflag >> 2) & 3, m->mpc_srcbus,
@@ -163,7 +163,7 @@ static void print_MP_intsrc_info(struct mpc_config_intsrc *m)
 
 static void __init print_mp_irq_info(struct mp_config_intsrc *mp_irq)
 {
-	printk(KERN_CONT "Int: type %d, pol %d, trig %d, bus %02x,"
+	apic_printk(APIC_VERBOSE, "Int: type %d, pol %d, trig %d, bus %02x,"
 		" IRQ %02x, APIC ID %x, APIC INT %02x\n",
 		mp_irq->mp_irqtype, mp_irq->mp_irqflag & 3,
 		(mp_irq->mp_irqflag >> 2) & 3, mp_irq->mp_srcbus,
@@ -235,7 +235,7 @@ static void __init MP_intsrc_info(struct mpc_config_intsrc *m)
 
 static void __init MP_lintsrc_info(struct mpc_config_lintsrc *m)
 {
-	printk(KERN_INFO "Lint: type %d, pol %d, trig %d, bus %02x,"
+	apic_printk(APIC_VERBOSE, "Lint: type %d, pol %d, trig %d, bus %02x,"
 		" IRQ %02x, APIC ID %x, APIC LINT %02x\n",
 		m->mpc_irqtype, m->mpc_irqflag & 3,
 		(m->mpc_irqflag >> 2) & 3, m->mpc_srcbusid,
@@ -697,7 +697,8 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,
 	unsigned int *bp = phys_to_virt(base);
 	struct intel_mp_floating *mpf;
 
-	printk(KERN_DEBUG "Scan SMP from %p for %ld bytes.\n", bp, length);
+	apic_printk(APIC_VERBOSE, "Scan SMP from %p for %ld bytes.\n",
+			bp, length);
 	BUILD_BUG_ON(sizeof(*mpf) != 16);
 
 	while (length > 0) {
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index b67a4b1d4eae..02d19328525d 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1350,7 +1350,7 @@ static void calgary_init_bitmap_from_tce_table(struct iommu_table *tbl)
  * Function for kdump case. Get the tce tables from first kernel
  * by reading the contents of the base adress register of calgary iommu
  */
-static void get_tce_space_from_tar()
+static void get_tce_space_from_tar(void)
 {
 	int bus;
 	void __iomem *target;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 8dbffb846de9..87d4d6964ec2 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -123,6 +123,14 @@ void __init pci_iommu_alloc(void)
 
 	pci_swiotlb_init();
 }
+
+unsigned long iommu_num_pages(unsigned long addr, unsigned long len)
+{
+	unsigned long size = roundup((addr & ~PAGE_MASK) + len, PAGE_SIZE);
+
+	return size >> PAGE_SHIFT;
+}
+EXPORT_SYMBOL(iommu_num_pages);
 #endif
 
 /*
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 792b87853a76..59f07e14d083 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -604,6 +604,14 @@ void __init setup_arch(char **cmdline_p)
 	early_cpu_init();
 	early_ioremap_init();
 
+#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
+	/*
+	 * Must be before kernel pagetables are setup
+	 * or fixmap area is touched.
+	 */
+	vmi_init();
+#endif
+
 	ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
 	screen_info = boot_params.screen_info;
 	edid_info = boot_params.edid_info;
@@ -790,10 +798,6 @@ 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.
@@ -808,20 +812,21 @@ 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);
@@ -858,12 +863,6 @@ 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();
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 626618bf2f81..04f78ab51b45 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -327,12 +327,16 @@ static void __cpuinit start_secondary(void *unused)
 	 * for which cpus receive the IPI. Holding this
 	 * lock helps us to not include this cpu in a currently in progress
 	 * smp_call_function().
+	 *
+	 * We need to hold vector_lock so there the set of online cpus
+	 * does not change while we are assigning vectors to cpus.  Holding
+	 * this lock ensures we don't half assign or remove an irq from a cpu.
 	 */
 	ipi_call_lock_irq();
-#ifdef CONFIG_X86_IO_APIC
-	setup_vector_irq(smp_processor_id());
-#endif
+	lock_vector_lock();
+	__setup_vector_irq(smp_processor_id());
 	cpu_set(smp_processor_id(), cpu_online_map);
+	unlock_vector_lock();
 	ipi_call_unlock_irq();
 	per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
 
@@ -983,7 +987,17 @@ int __cpuinit native_cpu_up(unsigned int cpu)
 	flush_tlb_all();
 	low_mappings = 1;
 
+#ifdef CONFIG_X86_PC
+	if (def_to_bigsmp && apicid > 8) {
+		printk(KERN_WARNING
+			"More than 8 CPUs detected - skipping them.\n"
+			"Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.\n");
+		err = -1;
+	} else
+		err = do_boot_cpu(apicid, cpu);
+#else
 	err = do_boot_cpu(apicid, cpu);
+#endif
 
 	zap_low_mappings();
 	low_mappings = 0;
@@ -1336,7 +1350,9 @@ int __cpu_disable(void)
 	remove_siblinginfo(cpu);
 
 	/* It's now safe to remove this processor from the online map */
+	lock_vector_lock();
 	remove_cpu_from_maps(cpu);
+	unlock_vector_lock();
 	fixup_irqs(cpu_online_map);
 	return 0;
 }
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 45c27c4e2a6e..61531d5c9507 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -37,6 +37,7 @@
 #include <asm/timer.h>
 #include <asm/vmi_time.h>
 #include <asm/kmap_types.h>
+#include <asm/setup.h>
 
 /* Convenient for calling VMI functions indirectly in the ROM */
 typedef u32 __attribute__((regparm(1))) (VROMFUNC)(void);
@@ -683,7 +684,7 @@ void vmi_bringup(void)
 {
  	/* We must establish the lowmem mapping for MMU ops to work */
 	if (vmi_ops.set_linear_mapping)
-		vmi_ops.set_linear_mapping(0, (void *)__PAGE_OFFSET, max_low_pfn, 0);
+		vmi_ops.set_linear_mapping(0, (void *)__PAGE_OFFSET, MAXMEM_PFN, 0);
 }
 
 /*