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-rw-r--r--arch/x86/kvm/x86.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f0846d2aa95..39f49580205 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1833,6 +1833,7 @@ static int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
1833{ 1833{
1834 int r; 1834 int r;
1835 1835
1836 vcpu_load(vcpu);
1836 r = -E2BIG; 1837 r = -E2BIG;
1837 if (cpuid->nent < vcpu->arch.cpuid_nent) 1838 if (cpuid->nent < vcpu->arch.cpuid_nent)
1838 goto out; 1839 goto out;
@@ -1844,6 +1845,7 @@ static int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
1844 1845
1845out: 1846out:
1846 cpuid->nent = vcpu->arch.cpuid_nent; 1847 cpuid->nent = vcpu->arch.cpuid_nent;
1848 vcpu_put(vcpu);
1847 return r; 1849 return r;
1848} 1850}
1849 1851
@@ -2134,6 +2136,7 @@ static int kvm_vcpu_ioctl_x86_setup_mce(struct kvm_vcpu *vcpu,
2134 int r; 2136 int r;
2135 unsigned bank_num = mcg_cap & 0xff, bank; 2137 unsigned bank_num = mcg_cap & 0xff, bank;
2136 2138
2139 vcpu_load(vcpu);
2137 r = -EINVAL; 2140 r = -EINVAL;
2138 if (!bank_num || bank_num >= KVM_MAX_MCE_BANKS) 2141 if (!bank_num || bank_num >= KVM_MAX_MCE_BANKS)
2139 goto out; 2142 goto out;
@@ -2148,6 +2151,7 @@ static int kvm_vcpu_ioctl_x86_setup_mce(struct kvm_vcpu *vcpu,
2148 for (bank = 0; bank < bank_num; bank++) 2151 for (bank = 0; bank < bank_num; bank++)
2149 vcpu->arch.mce_banks[bank*4] = ~(u64)0; 2152 vcpu->arch.mce_banks[bank*4] = ~(u64)0;
2150out: 2153out:
2154 vcpu_put(vcpu);
2151 return r; 2155 return r;
2152} 2156}
2153 2157
@@ -2456,7 +2460,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
2456 r = -EFAULT; 2460 r = -EFAULT;
2457 if (copy_from_user(&mce, argp, sizeof mce)) 2461 if (copy_from_user(&mce, argp, sizeof mce))
2458 goto out; 2462 goto out;
2463 vcpu_load(vcpu);
2459 r = kvm_vcpu_ioctl_x86_set_mce(vcpu, &mce); 2464 r = kvm_vcpu_ioctl_x86_set_mce(vcpu, &mce);
2465 vcpu_put(vcpu);
2460 break; 2466 break;
2461 } 2467 }
2462 case KVM_GET_VCPU_EVENTS: { 2468 case KVM_GET_VCPU_EVENTS: {