diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel_64.c b/arch/x86/kernel/cpu/mcheck/mce_intel_64.c
index d6b72df89d697cb6b809cc1e3c68540d28cfe1f3..cef3ee30744b9964c9503f1ffd137c7d5c9aaf69 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/e820.c b/arch/x86/kernel/e820.c
index ef2c3563357d52c6f7d314a1df2cd018bbdca000..0062813029256a2379d4dc66c42741439227210e 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/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index e7368c1da01dfa26eeedc563390e8191eb6eb08f..c1c429d00130c2a233b35f69449d5a02a9f6f2e9 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 89cea4d44679641146411bbce9e3e94b9b2bff84..84c3bf209e98a390ff536e46fd8fec362479f22a 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
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index fd3da1dda1c9e5033af44cbdaf432239784558f2..ae4f7b5d71040566f7b30af16e6c00f20c82c098 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -7,6 +7,7 @@
#include <asm/page.h>
#include <asm/page_types.h>
#include <asm/sections.h>
+#include <asm/setup.h>
#include <asm/system.h>
#include <asm/tlbflush.h>
@@ -304,8 +305,23 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
#endif
#ifdef CONFIG_X86_64
- if (!after_bootmem)
+ if (!after_bootmem && !start) {
+ pud_t *pud;
+ pmd_t *pmd;
+
mmu_cr4_features = read_cr4();
+
+ /*
+ * _brk_end cannot change anymore, but it and _end may be
+ * located on different 2M pages. cleanup_highmap(), however,
+ * can only consider _end when it runs, so destroy any
+ * mappings beyond _brk_end here.
+ */
+ pud = pud_offset(pgd_offset_k(_brk_end), _brk_end);
+ pmd = pmd_offset(pud, _brk_end - 1);
+ while (++pmd <= pmd_offset(pud, (unsigned long)_end - 1))
+ pmd_clear(pmd);
+ }
#endif
__flush_tlb_all();
diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c
index 16ae70fc57e77928e56347adea7b48ac08b4e6e1..29a0e37114f8089497cd95659bc8b1e6f1af8573 100644
--- a/arch/x86/mm/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -216,7 +216,7 @@ int __init get_memcfg_from_srat(void)
if (num_memory_chunks == 0) {
printk(KERN_WARNING
- "could not finy any ACPI SRAT memory areas.\n");
+ "could not find any ACPI SRAT memory areas.\n");
goto out_fail;
}
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 33c5fa57e43d22ce822249e9b918075684b29d44..01765955baaf66922ad70a959c9875f60fcad56e 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -361,6 +361,7 @@ static void __init unparse_node(int node)
{
int i;
node_clear(node, nodes_parsed);
+ node_clear(node, cpu_nodes_parsed);
for (i = 0; i < MAX_LOCAL_APIC; i++) {
if (apicid_to_node[i] == node)
apicid_to_node[i] = NUMA_NO_NODE;
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 9842b12124078f9795413a31e784dd96a1fc28a0..e25a78e1113a11f8b2c057508697d48b3d99b2af 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1794,6 +1794,11 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd,
pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(swapper_pg_dir)));
+ reserve_early(__pa(xen_start_info->pt_base),
+ __pa(xen_start_info->pt_base +
+ xen_start_info->nr_pt_frames * PAGE_SIZE),
+ "XEN PAGETABLES");
+
return swapper_pg_dir;
}
#endif /* CONFIG_X86_64 */