8 files changed, 29 insertions, 23 deletions

diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 42c33cebf00..8c0be0902da 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -49,10 +49,10 @@
 #define IVHD_DEV_EXT_SELECT             0x46
 #define IVHD_DEV_EXT_SELECT_RANGE       0x47
 
-#define IVHD_FLAG_HT_TUN_EN             0x00
-#define IVHD_FLAG_PASSPW_EN             0x01
-#define IVHD_FLAG_RESPASSPW_EN          0x02
-#define IVHD_FLAG_ISOC_EN               0x03
+#define IVHD_FLAG_HT_TUN_EN_MASK        0x01
+#define IVHD_FLAG_PASSPW_EN_MASK        0x02
+#define IVHD_FLAG_RESPASSPW_EN_MASK     0x04
+#define IVHD_FLAG_ISOC_EN_MASK          0x08
 
 #define IVMD_FLAG_EXCL_RANGE            0x08
 #define IVMD_FLAG_UNITY_MAP             0x01
@@ -569,19 +569,19 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
          * First set the recommended feature enable bits from ACPI
          * into the IOMMU control registers
          */
-        h->flags & IVHD_FLAG_HT_TUN_EN ?
+        h->flags & IVHD_FLAG_HT_TUN_EN_MASK ?
                 iommu_feature_enable(iommu, CONTROL_HT_TUN_EN) :
                 iommu_feature_disable(iommu, CONTROL_HT_TUN_EN);
 
-        h->flags & IVHD_FLAG_PASSPW_EN ?
+        h->flags & IVHD_FLAG_PASSPW_EN_MASK ?
                 iommu_feature_enable(iommu, CONTROL_PASSPW_EN) :
                 iommu_feature_disable(iommu, CONTROL_PASSPW_EN);
 
-        h->flags & IVHD_FLAG_RESPASSPW_EN ?
+        h->flags & IVHD_FLAG_RESPASSPW_EN_MASK ?
                 iommu_feature_enable(iommu, CONTROL_RESPASSPW_EN) :
                 iommu_feature_disable(iommu, CONTROL_RESPASSPW_EN);
 
-        h->flags & IVHD_FLAG_ISOC_EN ?
+        h->flags & IVHD_FLAG_ISOC_EN_MASK ?
                 iommu_feature_enable(iommu, CONTROL_ISOC_EN) :
                 iommu_feature_disable(iommu, CONTROL_ISOC_EN);
 
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index c4f667896c2..c1caefc82e6 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1203,6 +1203,8 @@ void __cpuinit cpu_init(void)
         load_TR_desc();
         load_LDT(&init_mm.context);
 
+        t->x86_tss.io_bitmap_base = offsetof(struct tss_struct, io_bitmap);
+
 #ifdef CONFIG_DOUBLEFAULT
         /* Set up doublefault TSS pointer in the GDT */
         __set_tss_desc(cpu, GDT_ENTRY_DOUBLEFAULT_TSS, &doublefault_tss);
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel_64.c b/arch/x86/kernel/cpu/mcheck/mce_intel_64.c
index d6b72df89d6..cef3ee30744 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel_64.c
@@ -151,10 +151,11 @@ static void print_update(char *type, int *hdr, int num)
 static void cmci_discover(int banks, int boot)
 {
         unsigned long *owned = (void *)&__get_cpu_var(mce_banks_owned);
+        unsigned long flags;
         int hdr = 0;
         int i;
 
-        spin_lock(&cmci_discover_lock);
+        spin_lock_irqsave(&cmci_discover_lock, flags);
         for (i = 0; i < banks; i++) {
                 u64 val;
 
@@ -184,7 +185,7 @@ static void cmci_discover(int banks, int boot)
                         WARN_ON(!test_bit(i, __get_cpu_var(mce_poll_banks)));
                 }
         }
-        spin_unlock(&cmci_discover_lock);
+        spin_unlock_irqrestore(&cmci_discover_lock, flags);
         if (hdr)
                 printk(KERN_CONT "\n");
 }
@@ -211,13 +212,14 @@ void cmci_recheck(void)
  */
 void cmci_clear(void)
 {
+        unsigned long flags;
         int i;
         int banks;
         u64 val;
 
         if (!cmci_supported(&banks))
                 return;
-        spin_lock(&cmci_discover_lock);
+        spin_lock_irqsave(&cmci_discover_lock, flags);
         for (i = 0; i < banks; i++) {
                 if (!test_bit(i, __get_cpu_var(mce_banks_owned)))
                         continue;
@@ -227,7 +229,7 @@ void cmci_clear(void)
                 wrmsrl(MSR_IA32_MC0_CTL2 + i, val);
                 __clear_bit(i, __get_cpu_var(mce_banks_owned));
         }
-        spin_unlock(&cmci_discover_lock);
+        spin_unlock_irqrestore(&cmci_discover_lock, flags);
 }
 
 /*
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index f93047fed79..d5e30397246 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -14,7 +14,7 @@ static void show_cpuinfo_core(struct seq_file *m, struct cpuinfo_x86 *c,
         if (c->x86_max_cores * smp_num_siblings > 1) {
                 seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
                 seq_printf(m, "siblings\t: %d\n",
-                           cpumask_weight(cpu_sibling_mask(cpu)));
+                           cpumask_weight(cpu_core_mask(cpu)));
                 seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
                 seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
                 seq_printf(m, "apicid\t\t: %d\n", c->apicid);
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index ef2c3563357..00628130292 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1074,12 +1074,13 @@ u64 __init early_reserve_e820(u64 startt, u64 sizet, u64 align)
         u64 addr;
         u64 start;
 
-        start = startt;
-        while (size < sizet && (start + 1))
+        for (start = startt; ; start += size) {
                 start = find_e820_area_size(start, &size, align);
-
-        if (size < sizet)
-                return 0;
+                if (!(start + 1))
+                        return 0;
+                if (size >= sizet)
+                        break;
+        }
 
 #ifdef CONFIG_X86_32
         if (start >= MAXMEM)
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index eedfaebe106..b1f4dffb919 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -88,6 +88,7 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
         gdb_regs[GDB_SS]        = __KERNEL_DS;
         gdb_regs[GDB_FS]        = 0xFFFF;
         gdb_regs[GDB_GS]        = 0xFFFF;
+        gdb_regs[GDB_SP]        = (int)&regs->sp;
 #else
         gdb_regs[GDB_R8]        = regs->r8;
         gdb_regs[GDB_R9]        = regs->r9;
@@ -100,8 +101,8 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
         gdb_regs32[GDB_PS]      = regs->flags;
         gdb_regs32[GDB_CS]      = regs->cs;
         gdb_regs32[GDB_SS]      = regs->ss;
-#endif
         gdb_regs[GDB_SP]        = regs->sp;
+#endif
 }
 
 /**
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index e7368c1da01..c1c429d0013 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -194,7 +194,7 @@ void machine_kexec(struct kimage *image)
                                        unsigned int preserve_context);
 
 #ifdef CONFIG_KEXEC_JUMP
-        if (kexec_image->preserve_context)
+        if (image->preserve_context)
                 save_processor_state();
 #endif
 
@@ -253,7 +253,7 @@ void machine_kexec(struct kimage *image)
                                            image->preserve_context);
 
 #ifdef CONFIG_KEXEC_JUMP
-        if (kexec_image->preserve_context)
+        if (image->preserve_context)
                 restore_processor_state();
 #endif
 
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 89cea4d4467..84c3bf209e9 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -274,7 +274,7 @@ void machine_kexec(struct kimage *image)
         int save_ftrace_enabled;
 
 #ifdef CONFIG_KEXEC_JUMP
-        if (kexec_image->preserve_context)
+        if (image->preserve_context)
                 save_processor_state();
 #endif
 
@@ -333,7 +333,7 @@ void machine_kexec(struct kimage *image)
                                        image->preserve_context);
 
 #ifdef CONFIG_KEXEC_JUMP
-        if (kexec_image->preserve_context)
+        if (image->preserve_context)
                 restore_processor_state();
 #endif