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authorIngo Molnar <mingo@elte.hu>2011-01-05 14:22:08 +0100
committerIngo Molnar <mingo@elte.hu>2011-01-05 14:22:10 +0100
commitaef1b9cef78ae65c6501850851cc3f61f9be477b (patch)
tree9769972983e84620df17c13b73f70a8341c4b125 /arch/x86
parent20c457b8587bee4644d998331d9e13be82e05b4c (diff)
parent3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff)
Merge commit 'v2.6.37' into perf/core
Merge reason: Add the final .37 tree. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/i8259.c2
-rw-r--r--arch/x86/kvm/mmu.c3
-rw-r--r--arch/x86/oprofile/op_model_amd.c24
3 files changed, 20 insertions, 9 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index f628234fbec..3cece05e4ac 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -575,6 +575,8 @@ struct kvm_pic *kvm_create_pic(struct kvm *kvm)
s->pics[1].elcr_mask = 0xde;
s->pics[0].pics_state = s;
s->pics[1].pics_state = s;
+ s->pics[0].isr_ack = 0xff;
+ s->pics[1].isr_ack = 0xff;
/*
* Initialize PIO device
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index fb8b376bf28..fbb04aee830 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2394,7 +2394,8 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
ASSERT(!VALID_PAGE(root));
spin_lock(&vcpu->kvm->mmu_lock);
kvm_mmu_free_some_pages(vcpu);
- sp = kvm_mmu_get_page(vcpu, i << 30, i << 30,
+ sp = kvm_mmu_get_page(vcpu, i << (30 - PAGE_SHIFT),
+ i << 30,
PT32_ROOT_LEVEL, 1, ACC_ALL,
NULL);
root = __pa(sp->spt);
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index f2984d43a6b..51104b33fd5 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -637,21 +637,29 @@ static int __init_ibs_nmi(void)
return 0;
}
-/* initialize the APIC for the IBS interrupts if available */
+/*
+ * check and reserve APIC extended interrupt LVT offset for IBS if
+ * available
+ *
+ * init_ibs() preforms implicitly cpu-local operations, so pin this
+ * thread to its current CPU
+ */
+
static void init_ibs(void)
{
- ibs_caps = get_ibs_caps();
+ preempt_disable();
+ ibs_caps = get_ibs_caps();
if (!ibs_caps)
- return;
+ goto out;
- if (__init_ibs_nmi()) {
+ if (__init_ibs_nmi() < 0)
ibs_caps = 0;
- return;
- }
+ else
+ printk(KERN_INFO "oprofile: AMD IBS detected (0x%08x)\n", ibs_caps);
- printk(KERN_INFO "oprofile: AMD IBS detected (0x%08x)\n",
- (unsigned)ibs_caps);
+out:
+ preempt_enable();
}
static int (*create_arch_files)(struct super_block *sb, struct dentry *root);