Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fix from Marcelo Tosatti: "A correction for oops on module init with older Intel hosts." * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()
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Коммит
51844b0f04
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@ -6549,19 +6549,22 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
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}
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}
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exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
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/* Exposing INVPCID only when PCID is exposed */
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best = kvm_find_cpuid_entry(vcpu, 0x7, 0);
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if (vmx_invpcid_supported() &&
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best && (best->ebx & bit(X86_FEATURE_INVPCID)) &&
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guest_cpuid_has_pcid(vcpu)) {
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exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
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exec_control |= SECONDARY_EXEC_ENABLE_INVPCID;
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vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
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exec_control);
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} else {
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exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
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vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
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exec_control);
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if (cpu_has_secondary_exec_ctrls()) {
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exec_control = vmcs_read32(SECONDARY_VM_EXEC_CONTROL);
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exec_control &= ~SECONDARY_EXEC_ENABLE_INVPCID;
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vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
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exec_control);
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}
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if (best)
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best->ebx &= ~bit(X86_FEATURE_INVPCID);
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}
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