diff options
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/apic/hw_nmi.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/mtrr/cleanup.c | 8 | ||||
| -rw-r--r-- | arch/x86/kernel/kprobes/core.c | 14 | ||||
| -rw-r--r-- | arch/x86/kernel/kvmclock.c | 1 |
4 files changed, 16 insertions, 8 deletions
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c index 31cb9ae992b..a698d7165c9 100644 --- a/arch/x86/kernel/apic/hw_nmi.c +++ b/arch/x86/kernel/apic/hw_nmi.c @@ -9,6 +9,7 @@ * */ #include <asm/apic.h> +#include <asm/nmi.h> #include <linux/cpumask.h> #include <linux/kdebug.h> diff --git a/arch/x86/kernel/cpu/mtrr/cleanup.c b/arch/x86/kernel/cpu/mtrr/cleanup.c index 35ffda5d072..5f90b85ff22 100644 --- a/arch/x86/kernel/cpu/mtrr/cleanup.c +++ b/arch/x86/kernel/cpu/mtrr/cleanup.c @@ -714,15 +714,15 @@ int __init mtrr_cleanup(unsigned address_bits) if (mtrr_tom2) x_remove_size = (mtrr_tom2 >> PAGE_SHIFT) - x_remove_base; - nr_range = x86_get_mtrr_mem_range(range, 0, x_remove_base, x_remove_size); /* * [0, 1M) should always be covered by var mtrr with WB * and fixed mtrrs should take effect before var mtrr for it: */ - nr_range = add_range_with_merge(range, RANGE_NUM, nr_range, 0, + nr_range = add_range_with_merge(range, RANGE_NUM, 0, 0, 1ULL<<(20 - PAGE_SHIFT)); - /* Sort the ranges: */ - sort_range(range, nr_range); + /* add from var mtrr at last */ + nr_range = x86_get_mtrr_mem_range(range, nr_range, + x_remove_base, x_remove_size); range_sums = sum_ranges(range, nr_range); printk(KERN_INFO "total RAM covered: %ldM\n", diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c index 9895a9a4138..211bce44552 100644 --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -365,10 +365,14 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src) return insn.length; } -static void __kprobes arch_copy_kprobe(struct kprobe *p) +static int __kprobes arch_copy_kprobe(struct kprobe *p) { + int ret; + /* Copy an instruction with recovering if other optprobe modifies it.*/ - __copy_instruction(p->ainsn.insn, p->addr); + ret = __copy_instruction(p->ainsn.insn, p->addr); + if (!ret) + return -EINVAL; /* * __copy_instruction can modify the displacement of the instruction, @@ -384,6 +388,8 @@ static void __kprobes arch_copy_kprobe(struct kprobe *p) /* Also, displacement change doesn't affect the first byte */ p->opcode = p->ainsn.insn[0]; + + return 0; } int __kprobes arch_prepare_kprobe(struct kprobe *p) @@ -397,8 +403,8 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) p->ainsn.insn = get_insn_slot(); if (!p->ainsn.insn) return -ENOMEM; - arch_copy_kprobe(p); - return 0; + + return arch_copy_kprobe(p); } void __kprobes arch_arm_kprobe(struct kprobe *p) diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index d2c381280e3..3dd37ebd591 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -242,6 +242,7 @@ void __init kvmclock_init(void) if (!mem) return; hv_clock = __va(mem); + memset(hv_clock, 0, size); if (kvm_register_clock("boot clock")) { hv_clock = NULL; |