7 files changed, 35 insertions, 72 deletions

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 0350311906ae..2d93bdbc9ac0 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -34,7 +34,7 @@
 #include <asm/ia32.h>
 
 #undef WARN_OLD
-#undef CORE_DUMP /* probably broken */
+#undef CORE_DUMP /* definitely broken */
 
 static int load_aout_binary(struct linux_binprm *, struct pt_regs *regs);
 static int load_aout_library(struct file *);
@@ -131,21 +131,15 @@ static void set_brk(unsigned long start, unsigned long end)
  * macros to write out all the necessary info.
  */
 
-static int dump_write(struct file *file, const void *addr, int nr)
-{
-        return file->f_op->write(file, addr, nr, &file->f_pos) == nr;
-}
+#include <linux/coredump.h>
 
 #define DUMP_WRITE(addr, nr)                         \
         if (!dump_write(file, (void *)(addr), (nr))) \
                 goto end_coredump;
 
-#define DUMP_SEEK(offset)                                               \
-        if (file->f_op->llseek) {                                       \
-                if (file->f_op->llseek(file, (offset), 0) != (offset))  \
-                        goto end_coredump;                              \
-        } else                                                          \
-                file->f_pos = (offset)
+#define DUMP_SEEK(offset)               \
+        if (!dump_seek(file, offset))   \
+                goto end_coredump;
 
 #define START_DATA()    (u.u_tsize << PAGE_SHIFT)
 #define START_STACK(u)  (u.start_stack)
@@ -217,12 +211,6 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
                 dump_size = dump.u_ssize << PAGE_SHIFT;
                 DUMP_WRITE(dump_start, dump_size);
         }
-        /*
-         * Finally dump the task struct.  Not be used by gdb, but
-         * could be useful
-         */
-        set_fs(KERNEL_DS);
-        DUMP_WRITE(current, sizeof(*current));
 end_coredump:
         set_fs(fs);
         return has_dumped;
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 502e53f999cf..c52e2eb40a1e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -652,20 +652,6 @@ static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
         return (struct kvm_mmu_page *)page_private(page);
 }
 
-static inline u16 kvm_read_fs(void)
-{
-        u16 seg;
-        asm("mov %%fs, %0" : "=g"(seg));
-        return seg;
-}
-
-static inline u16 kvm_read_gs(void)
-{
-        u16 seg;
-        asm("mov %%gs, %0" : "=g"(seg));
-        return seg;
-}
-
 static inline u16 kvm_read_ldt(void)
 {
         u16 ldt;
@@ -673,16 +659,6 @@ static inline u16 kvm_read_ldt(void)
         return ldt;
 }
 
-static inline void kvm_load_fs(u16 sel)
-{
-        asm("mov %0, %%fs" : : "rm"(sel));
-}
-
-static inline void kvm_load_gs(u16 sel)
-{
-        asm("mov %0, %%gs" : : "rm"(sel));
-}
-
 static inline void kvm_load_ldt(u16 sel)
 {
         asm("lldt %0" : : "rm"(sel));
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 5e975298fa81..39aaee5c1ab2 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -141,6 +141,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c)
                                 address = (low & MASK_BLKPTR_LO) >> 21;
                                 if (!address)
                                         break;
+
                                 address += MCG_XBLK_ADDR;
                         } else
                                 ++address;
@@ -148,12 +149,8 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c)
                         if (rdmsr_safe(address, &low, &high))
                                 break;
 
-                        if (!(high & MASK_VALID_HI)) {
-                                if (block)
-                                        continue;
-                                else
-                                        break;
-                        }
+                        if (!(high & MASK_VALID_HI))
+                                continue;
 
                         if (!(high & MASK_CNTP_HI)  ||
                              (high & MASK_LOCKED_HI))
diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c
index d9368eeda309..169d8804a9f8 100644
--- a/arch/x86/kernel/cpu/mcheck/therm_throt.c
+++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c
@@ -216,7 +216,7 @@ static __cpuinit int thermal_throttle_add_dev(struct sys_device *sys_dev,
                 err = sysfs_add_file_to_group(&sys_dev->kobj,
                                               &attr_core_power_limit_count.attr,
                                               thermal_attr_group.name);
-        if (cpu_has(c, X86_FEATURE_PTS))
+        if (cpu_has(c, X86_FEATURE_PTS)) {
                 err = sysfs_add_file_to_group(&sys_dev->kobj,
                                               &attr_package_throttle_count.attr,
                                               thermal_attr_group.name);
@@ -224,6 +224,7 @@ static __cpuinit int thermal_throttle_add_dev(struct sys_device *sys_dev,
                         err = sysfs_add_file_to_group(&sys_dev->kobj,
                                         &attr_package_power_limit_count.attr,
                                         thermal_attr_group.name);
+        }
 
         return err;
 }
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index bc5b9b8d4a33..8a3f9f64f86f 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -766,7 +766,6 @@ static void init_vmcb(struct vcpu_svm *svm)
 
         control->iopm_base_pa = iopm_base;
         control->msrpm_base_pa = __pa(svm->msrpm);
-        control->tsc_offset = 0;
         control->int_ctl = V_INTR_MASKING_MASK;
 
         init_seg(&save->es);
@@ -902,6 +901,7 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
         svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT;
         svm->asid_generation = 0;
         init_vmcb(svm);
+        svm->vmcb->control.tsc_offset = 0-native_read_tsc();
 
         err = fx_init(&svm->vcpu);
         if (err)
@@ -3163,8 +3163,8 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
         sync_lapic_to_cr8(vcpu);
 
         save_host_msrs(vcpu);
-        fs_selector = kvm_read_fs();
-        gs_selector = kvm_read_gs();
+        savesegment(fs, fs_selector);
+        savesegment(gs, gs_selector);
         ldt_selector = kvm_read_ldt();
         svm->vmcb->save.cr2 = vcpu->arch.cr2;
         /* required for live migration with NPT */
@@ -3251,10 +3251,15 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
         vcpu->arch.regs[VCPU_REGS_RSP] = svm->vmcb->save.rsp;
         vcpu->arch.regs[VCPU_REGS_RIP] = svm->vmcb->save.rip;
 
-        kvm_load_fs(fs_selector);
-        kvm_load_gs(gs_selector);
-        kvm_load_ldt(ldt_selector);
         load_host_msrs(vcpu);
+        loadsegment(fs, fs_selector);
+#ifdef CONFIG_X86_64
+        load_gs_index(gs_selector);
+        wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gs);
+#else
+        loadsegment(gs, gs_selector);
+#endif
+        kvm_load_ldt(ldt_selector);
 
         reload_tss(vcpu);
 
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 49b25eee25ac..7bddfab12013 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -803,7 +803,7 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
          */
         vmx->host_state.ldt_sel = kvm_read_ldt();
         vmx->host_state.gs_ldt_reload_needed = vmx->host_state.ldt_sel;
-        vmx->host_state.fs_sel = kvm_read_fs();
+        savesegment(fs, vmx->host_state.fs_sel);
         if (!(vmx->host_state.fs_sel & 7)) {
                 vmcs_write16(HOST_FS_SELECTOR, vmx->host_state.fs_sel);
                 vmx->host_state.fs_reload_needed = 0;
@@ -811,7 +811,7 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
                 vmcs_write16(HOST_FS_SELECTOR, 0);
                 vmx->host_state.fs_reload_needed = 1;
         }
-        vmx->host_state.gs_sel = kvm_read_gs();
+        savesegment(gs, vmx->host_state.gs_sel);
         if (!(vmx->host_state.gs_sel & 7))
                 vmcs_write16(HOST_GS_SELECTOR, vmx->host_state.gs_sel);
         else {
@@ -841,27 +841,21 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu)
 
 static void __vmx_load_host_state(struct vcpu_vmx *vmx)
 {
-        unsigned long flags;
-
         if (!vmx->host_state.loaded)
                 return;
 
         ++vmx->vcpu.stat.host_state_reload;
         vmx->host_state.loaded = 0;
         if (vmx->host_state.fs_reload_needed)
-                kvm_load_fs(vmx->host_state.fs_sel);
+                loadsegment(fs, vmx->host_state.fs_sel);
         if (vmx->host_state.gs_ldt_reload_needed) {
                 kvm_load_ldt(vmx->host_state.ldt_sel);
-                /*
-                 * If we have to reload gs, we must take care to
-                 * preserve our gs base.
-                 */
-                local_irq_save(flags);
-                kvm_load_gs(vmx->host_state.gs_sel);
 #ifdef CONFIG_X86_64
-                wrmsrl(MSR_GS_BASE, vmcs_readl(HOST_GS_BASE));
+                load_gs_index(vmx->host_state.gs_sel);
+                wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gs);
+#else
+                loadsegment(gs, vmx->host_state.gs_sel);
 #endif
-                local_irq_restore(flags);
         }
         reload_tss();
 #ifdef CONFIG_X86_64
@@ -2589,8 +2583,8 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
         vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS);  /* 22.2.4 */
         vmcs_write16(HOST_DS_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
         vmcs_write16(HOST_ES_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
-        vmcs_write16(HOST_FS_SELECTOR, kvm_read_fs());    /* 22.2.4 */
-        vmcs_write16(HOST_GS_SELECTOR, kvm_read_gs());    /* 22.2.4 */
+        vmcs_write16(HOST_FS_SELECTOR, 0);            /* 22.2.4 */
+        vmcs_write16(HOST_GS_SELECTOR, 0);            /* 22.2.4 */
         vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
 #ifdef CONFIG_X86_64
         rdmsrl(MSR_FS_BASE, a);
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index f9897f7a9ef1..9c0d0d399c30 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -420,9 +420,11 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
                 return -1;
         }
 
-        for_each_node_mask(i, nodes_parsed)
-                e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
-                                                nodes[i].end >> PAGE_SHIFT);
+        for (i = 0; i < num_node_memblks; i++)
+                e820_register_active_regions(memblk_nodeid[i],
+                                node_memblk_range[i].start >> PAGE_SHIFT,
+                                node_memblk_range[i].end >> PAGE_SHIFT);
+
         /* for out of order entries in SRAT */
         sort_node_map();
         if (!nodes_cover_memory(nodes)) {